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Themed collection 2018 Journal of Materials Chemistry A HOT Papers

105 items - Showing page 1 of 2
Review Article

Single-Atom Catalysts and Their Applications in Organic Chemistry

Review Article

The quest for high glass transition temperature bioplastics

This review describes recent strategies for synthesizing polymers that are mostly or fully biobased and exhibit a high glass transition temperature.

Graphical abstract: The quest for high glass transition temperature bioplastics
Review Article

Recent advances in electrolytes for quantum dot-sensitized solar cells

A comprehensive overview was shown on recent advances in electrolytes or hole-transport materials for quantum dot-sensitized solar cells (QDSCs).

Graphical abstract: Recent advances in electrolytes for quantum dot-sensitized solar cells
Review Article

Metal–organic framework technologies for water remediation: towards a sustainable ecosystem

Having access to clean water is a mandatory requirement for the proper development of living beings.

Graphical abstract: Metal–organic framework technologies for water remediation: towards a sustainable ecosystem
Review Article

Dual anode materials for lithium- and sodium-ion batteries

Currently, the application of new energy conversion and storage technologies is urgent in order to meet the increasing requirements for energy.

Graphical abstract: Dual anode materials for lithium- and sodium-ion batteries
Review Article

The mechanism of ultrafast supercapacitors

Batteries and supercapacitors can be explained by the same impedance model involving diffusion, but neither is controlled by ‘semi-infinite’ diffusion.

Graphical abstract: The mechanism of ultrafast supercapacitors
Review Article

Carbon, nitrogen and phosphorus containing metal-free photocatalysts for hydrogen production: progress and challenges

This article critically reviews the progress and challenges in using metal-free photocatalysts made from carbon, nitrogen and phosphorus used for hydrogen production.

Graphical abstract: Carbon, nitrogen and phosphorus containing metal-free photocatalysts for hydrogen production: progress and challenges
Review Article

Innovation and challenges in materials design for flexible rechargeable batteries: from 1D to 3D

Due to the emergence of numerous flexible electronic devices, the design and fabrication of flexible rechargeable batteries with high energy density have attracted great attention.

Graphical abstract: Innovation and challenges in materials design for flexible rechargeable batteries: from 1D to 3D
Communication

Thermally induced migration of a polyoxometalate within a metal–organic framework and its catalytic effects

A polyoxometalate supported by the metal–organic framework, NU-1000, undergoes migration from the mesopore to the micropore when heated.

Graphical abstract: Thermally induced migration of a polyoxometalate within a metal–organic framework and its catalytic effects
Communication

Ionic Activation via Hybrid IL-SSE Interfacial Layer for Li−O2 Batteries with 99.5% Coulombic Efficiency

Communication

Robust graphene-wrapped PtNi nanosponge for enhanced oxygen reduction reaction performance

Communication

Inter-phase charge and energy transfer in Ruddlesden–Popper 2D perovskites: critical role of the spacing cations

Photo-generated charge carrier dynamics in Ruddlesden–Popper 2D perovskites with linear (n-BA) and branched (iso-BA) butylamine as spacing cations have been studied by using transient absorption and time-resolved photoluminescence spectroscopies.

Graphical abstract: Inter-phase charge and energy transfer in Ruddlesden–Popper 2D perovskites: critical role of the spacing cations
Communication

Facile template-free synthesis of uniform carbon-confined V2O3 hollow spheres for stable and fast lithium storage

A facile and efficient template-free method has been successfully developed to fabricate uniform nitrogen-doped carbon-confined V2O3 hollow spheres, which displayed stable and fast lithium storage.

Graphical abstract: Facile template-free synthesis of uniform carbon-confined V2O3 hollow spheres for stable and fast lithium storage
Communication

1D N-doped hierarchically porous hollow carbon tubes derived from a supramolecular template as metal-free electrocatalysts for a highly efficient oxygen reduction reaction

1D hollow nitrogen-doped carbon tubes (h-NCTs) were fabricated through a supramolecular template-derived approach and employed as the structure-guiding template, porogen and nitrogen source for in situ N-doping.

Graphical abstract: 1D N-doped hierarchically porous hollow carbon tubes derived from a supramolecular template as metal-free electrocatalysts for a highly efficient oxygen reduction reaction
Communication

Enhanced charge carrier separation of manganese(II)-doped graphitic carbon nitride: formation of N–Mn bonds through redox reactions

MnII-doped g-C3N4 obtained through redox reactions between a permanganate and urea upon calcination in an inert gas exhibits enhanced photogenerated charge carrier separation.

Graphical abstract: Enhanced charge carrier separation of manganese(ii)-doped graphitic carbon nitride: formation of N–Mn bonds through redox reactions
Communication

Super-flexible bis(trifluoromethanesulfonyl)-amide doped graphene transparent conductive electrode for photo-stable perovskite solar cells

Communication

Scanning laser melting for rapid and massive fabrication of filled skutterudites with high thermoelectric performance

A novel rapid fabrication technique that combines scanning laser melting and spark plasma sintering is developed to synthesize bulk filled skutterudites with high thermoelectric performance.

Graphical abstract: Scanning laser melting for rapid and massive fabrication of filled skutterudites with high thermoelectric performance
Communication

A solvent-switched in situ confinement approach for immobilizing highly-active ultrafine palladium nanoparticles: boosting catalytic hydrogen evolution

A solvent-switched in situ confinement approach has been developed to synthesize highly active nanocatalysts with ultrafine and clean metal nanoparticles encapsulated within carbon nanopores, over which record-high hydrogen evolution has been achieved under heterogeneous conditions.

Graphical abstract: A solvent-switched in situ confinement approach for immobilizing highly-active ultrafine palladium nanoparticles: boosting catalytic hydrogen evolution
Communication

A simple synthesis of nanoporous Sb/C with high Sb content and dispersity as an advanced anode for sodium ion batteries

Amorphous Sb/C with a nanoporous structure and subnanometric dispersity is synthesized by a simple, bottom up solid state reaction between Sb2O3 and CaC2. It exhibits an unprecedented performance of sodium storage.

Graphical abstract: A simple synthesis of nanoporous Sb/C with high Sb content and dispersity as an advanced anode for sodium ion batteries
Communication

Green-solvent processable semiconducting polymers applicable in additive-free perovskite and polymer solar cells: molecular weights, photovoltaic performance, and thermal stability

In this study, we demonstrated the effects of the molecular weight (MW) of a green processable polymer (asy-PBTBDT) on its photovoltaic performance and thermal stability for the first time.

Graphical abstract: Green-solvent processable semiconducting polymers applicable in additive-free perovskite and polymer solar cells: molecular weights, photovoltaic performance, and thermal stability
Communication

A platinum oxide decorated amorphous cobalt oxide hydroxide nanosheet array towards alkaline hydrogen evolution

A platinum oxide decorated amorphous cobalt oxide hydroxide nanosheet array has been prepared and used for alkaline hydrogen evolution.

Graphical abstract: A platinum oxide decorated amorphous cobalt oxide hydroxide nanosheet array towards alkaline hydrogen evolution
Communication

Sticky-note supercapacitors

Novel sticky-note supercapacitors with repeated adhesive performance are fabricated from sticky carbon nanotube array electrodes. The supercapacitors can be repeatedly attached onto various substrates, and they can also be brought into direct contact with each other to power external electronic devices as their contacting layers are electrically conductive. They are flexible with high specific capacitances after attaching and removing.

Graphical abstract: Sticky-note supercapacitors
Communication

Electrochemically substituted metal phthalocyanines, e-MPc (M = Co, Ni), as highly active and selective catalysts for CO2 reduction

The Fe center in FePc can be electrochemically substituted by Co and Ni, achieving high activity and stability for CO2 reduction.

Graphical abstract: Electrochemically substituted metal phthalocyanines, e-MPc (M = Co, Ni), as highly active and selective catalysts for CO2 reduction
Communication

Defect engineering of highly stable lanthanide metal–organic frameworks by particle modulation for coating catalysis

A powerful strategy to design the structure, control the particle sizes and fabricate catalytic devices is developed for lanthanide MOFs.

Graphical abstract: Defect engineering of highly stable lanthanide metal–organic frameworks by particle modulation for coating catalysis
Paper

Mesoporous Ca-Mn-O as Efficient Scavenger toward Organic Pollutants and Heavy Metals: Ion Exchange Provoking Ultrafast Fenton-like Reaction based on the Synergy of Alkaline Earth/Transition Metals

Paper

Solid-phase hot-pressing synthesis of POMOFs on carbon cloth and derived phosphides for all pH value hydrogen evolution

A powerful solid-phase hot-pressing method was applied to grow POMOFs and derived phosphides on carbon cloth rapidly and uniformly.

Graphical abstract: Solid-phase hot-pressing synthesis of POMOFs on carbon cloth and derived phosphides for all pH value hydrogen evolution
Paper

Designing a reductive hybrid membrane to selectively capture noble metallic ions during oil/water emulsion separation with further function enhancement

A reductive hybrid membrane successfully achieved preferential recovery of noble metal ions during oil/water emulsion separation with recyclability.

Graphical abstract: Designing a reductive hybrid membrane to selectively capture noble metallic ions during oil/water emulsion separation with further function enhancement
Paper

A peptide-based supercapacitor and its performance improvement via TiO2 coating

Based on their ability to self-assemble and mimic strategies that occur in nature, peptide nanomaterials offer a variety of potential applications in environmentally friendly energy storage technologies.

Graphical abstract: A peptide-based supercapacitor and its performance improvement via TiO2 coating
Paper

Formation of hollow MoS2/carbon microspheres for high capacity and high rate reversible alkali-ion storage

Inspired by the bird nest, we develop a hydrothermal approach to prepare MoS2/carbon hollow microspheres with a carbon inner shell and a vertically aligned MoS2 outer shell, which show an excellent performance for reversible alkali-metal ion (Li+, Na+ and K+) storage.

Graphical abstract: Formation of hollow MoS2/carbon microspheres for high capacity and high rate reversible alkali-ion storage
Paper

Hollow Si/SiOx nanosphere/nitrogen-doped carbon superstructure with a double shell and void for high-rate and long-life lithium-ion storage

We report a new class of Si/SiOx@void@nitrogen-doped carbon double-shelled hollow superstructure electrodes that are capable of accommodating huge volume changes without pulverization during cycling.

Graphical abstract: Hollow Si/SiOx nanosphere/nitrogen-doped carbon superstructure with a double shell and void for high-rate and long-life lithium-ion storage
Paper

Stanene nanomeshes as anode materials for Na-ion batteries

A two-dimensional stanene nanomesh is proposed as a promising anode material for Na-ion batteries.

Graphical abstract: Stanene nanomeshes as anode materials for Na-ion batteries
Paper

A theoretical study on the surface and interfacial properties of Ni3P for the hydrogen evolution reaction

DFT study on the catalytic activity for HER on low-index Ni3P crystal surfaces.

Graphical abstract: A theoretical study on the surface and interfacial properties of Ni3P for the hydrogen evolution reaction
Paper

CaI2: a more effective passivator of perovskite films than PbI2 for high efficiency and long-term stability of perovskite solar cells

Much less additive content of 0.5% CaI2 instead of 5% PbI2 was incorporated into the CH3NH3PbI3 film and a dense and surface-smooth morphology was obtained with much enlarged crystal grains. The champion PSC based on MAPbI3(CaI2)0.005 layer demonstrated a very high PCE of 19.3% with superior long-term stability.

Graphical abstract: CaI2: a more effective passivator of perovskite films than PbI2 for high efficiency and long-term stability of perovskite solar cells
Paper

Non-fullerene all small molecule solar cell constructed with a diketopyrrolopyrrole-based acceptor having power conversion efficiency higher than 9% and energy loss of 0.54 eV

Paper

Tunable pseudocapacitance storage of MXene by cation pillaring for high performance sodium-ion capacitors

2D transition metal carbide materials called MXene have attracted significant interest in the field of electrochemical energy storage due to their high electrical conductivity and high volumetric capacity.

Graphical abstract: Tunable pseudocapacitance storage of MXene by cation pillaring for high performance sodium-ion capacitors
Paper

Nano-engineering of a 3D-ordered membrane electrode assembly with ultrathin Pt skin on open-walled PdCo nanotube arrays for fuel cells

A 3D-ordered MEA with ultralow Pt loading and ultrahigh durability has been designed and constructed for PEMFCs.

Graphical abstract: Nano-engineering of a 3D-ordered membrane electrode assembly with ultrathin Pt skin on open-walled PdCo nanotube arrays for fuel cells
Paper

Porous superstructures constructed from ultrafine FeP nanoparticles for highly active and exceptionally stable hydrogen evolution reaction

We report the fabrication of porous FeP microsphere superstructures (SS) made up of ultrafine FeP NPs through a self-templated gas–solid phosphorization reaction. The FeP SS exhibit highly active and exceptionally stable HER performance at small electrocatalyst loading mass.

Graphical abstract: Porous superstructures constructed from ultrafine FeP nanoparticles for highly active and exceptionally stable hydrogen evolution reaction
Paper

Cobalt telluride/graphene composite nanosheets for excellent gravimetric and volumetric Na-ion storage

The CoTe2/G composite obtained by solvothermal synthesis exhibits a high gravimetric capacity of 382 mA h g−1, volumetric capacity of 695.2 mA h cm−3, and excellent rate-performance.

Graphical abstract: Cobalt telluride/graphene composite nanosheets for excellent gravimetric and volumetric Na-ion storage
Paper

An ultrastable Zr-MOF for fast capture and highly luminescence detection of Cr2O72− simultaneously in an aqueous phase

A porous Zr-MOFs (JLU-MOF50) with exceptional stabilities has been synthesized. As a dual functional material, JLU-MOF50 displays not only a high trapping capacity and an adsorption rate, but also effective detecting performance for Cr2O72− in the aqueous phase.

Graphical abstract: An ultrastable Zr-MOF for fast capture and highly luminescence detection of Cr2O72− simultaneously in an aqueous phase
Paper

Facile surface modification of CH3NH3PbI3 films leading to simultaneously improved efficiency and stability of inverted perovskite solar cells

Surface modification based on 4-DMABA allows for the enhancement of efficiency and stability of an inverted perovskite solar cell. This is ascribed to the passivation of the surface traps and recombination suppression, and to the hydrophobic surface capping layer, respectively.

Graphical abstract: Facile surface modification of CH3NH3PbI3 films leading to simultaneously improved efficiency and stability of inverted perovskite solar cells
Paper

Selective electrocatalysis of biofuel molecular oxidation by palladium nanoparticles generated on Shewanella oneidensis MR-1

Paper

Elucidating the origin of superior electrochemical performance: new insights on sodiation-desodiation mechanism of SnSb from operando spectroscopy.

Paper

C-O--K+(Na+) groups in non-doped carbon as active sites for oxygen reduction reaction

Paper

Gradient substitution: an intrinsic strategy towards high performance sodium storage in Prussian blue-based cathodes

Paper

K2Fe4O7 superionic conductor for all-solid-state potassium metal batteries

Paper

A facile route for the synthesis of heterogeneous crystal structures in hierarchical architectures with vacancy-driven defects via the oriented attachment growth mechanism

One-dimensional rutile TiO2 nanorod arrays with a tunable morphology and intact crystalline sub-nano structures attached are successfully fabricated as a large-scale film based on substrates.

Graphical abstract: A facile route for the synthesis of heterogeneous crystal structures in hierarchical architectures with vacancy-driven defects via the oriented attachment growth mechanism
Paper

Anchor and activate sulfide with LiTi2(PO4)2.88F0.12 nano spheres for lithium sulfur battery application

LiTi2(PO4)2.88F0.12 (LTP-F0.12) is proposed to anchor and activate polysulfide based on its strong interaction with polysulfide and rapid charge transfer behavior.

Graphical abstract: Anchor and activate sulfide with LiTi2(PO4)2.88F0.12 nano spheres for lithium sulfur battery application
Paper

Li2O–B2O3–GeO2 glass as a high performance anode material for rechargeable lithium-ion batteries

Li2O–B2O3–GeO2 glass is demonstrated as a promising lithium-ion battery anode because the glass phase facilitates lithium ion conduction while buffering the volume expansion of the active material.

Graphical abstract: Li2O–B2O3–GeO2 glass as a high performance anode material for rechargeable lithium-ion batteries
Paper

Exploring new two-dimensional monolayers: pentagonal transition metal borides/carbides (penta-TMB/Cs)

The development of two-dimensional (2D) materials with high conductivity and catalytic activity is important for the proposed hydrogen economy.

Graphical abstract: Exploring new two-dimensional monolayers: pentagonal transition metal borides/carbides (penta-TMB/Cs)
Paper

High-capacity cathodes for magnesium lithium chlorine tri-ion batteries through chloride intercalation in layered MoS2: a computational study

Rechargeable magnesium ion batteries (MIBs) have great potential as an alternative technology to substitute resource-limited lithium-ion batteries (LIBs), but rather difficult transportation of Mg2+ in cathodes and hence low cathode capacities loom as a major roadblock for their applications.

Graphical abstract: High-capacity cathodes for magnesium lithium chlorine tri-ion batteries through chloride intercalation in layered MoS2: a computational study
Paper

Observation of Valence Band Crossing: The Thermoelectric Properties of CaZn2Sb2-CaMg2Sb2 Solid Solution

Paper

Direct fabrication of tri-metallic PtPdCu tripods with branched exteriors for oxygen reduction reaction

Paper

High efficiency ternary polymer solar cells based on a fused pentacyclic electron acceptor

High-performance photovoltaic devices based on non-fullerene acceptors with fewer fused rings are realized via a ternary strategy.

Graphical abstract: High efficiency ternary polymer solar cells based on a fused pentacyclic electron acceptor
Open Access Paper

Highly permeable CHA membranes prepared by fluoride synthesis for efficient CO2/CH4 separation

Highly permeable CHA membranes were prepared in a fluoride synthesis gel by using all-silica CHA nanocrystals as seeds (20–200 nm) that were prepared using an improved method developed in the present work.

Graphical abstract: Highly permeable CHA membranes prepared by fluoride synthesis for efficient CO2/CH4 separation
Paper

Synergistic effect of an atomically dual-metal doped catalyst for highly efficient oxygen evolution

Isolated dual transition metal atoms (Ni and Fe) were uniformly embedded into graphitic carbon nitride via a metal–Nx bond, resulting in highly efficient catalytic activity due to the electronic structure reconfiguration.

Graphical abstract: Synergistic effect of an atomically dual-metal doped catalyst for highly efficient oxygen evolution
Paper

Unravelling the reaction chemistry and degradation mechanism in aqueous Zn/MnO2 rechargeable batteries

Two-step redox reactions (Mn(II) ions ⇌ ZnMn2O4 spinel ⇌ layered Zn-birnessite) during the charge–discharge process.

Graphical abstract: Unravelling the reaction chemistry and degradation mechanism in aqueous Zn/MnO2 rechargeable batteries
Open Access Paper

A full monolayer of superoxide: oxygen activation on the unmodified Ca3Ru2O7(001) surface

Ca3Ru2O7(001), an oxide surface without dopants, defects, or low-coordinated sites, readily activates molecular oxygen to O2.

Graphical abstract: A full monolayer of superoxide: oxygen activation on the unmodified Ca3Ru2O7(001) surface
Paper

A flexible polymer-based Li–air battery using a reduced graphene oxide/Li composite anode

Belt-shaped Li–air batteries using 4% SiO2–LiI-GPE with an rGO/Li anode display superior electrochemical performance under different harsh bending conditions.

Graphical abstract: A flexible polymer-based Li–air battery using a reduced graphene oxide/Li composite anode
Paper

Enhanced performance of perovskite solar cells via anti-solvent nonfullerene Lewis base IT-4F induced trap-passivation

We have developed a new method to introduce defect passivation agents using an in situ technique for planar p–i–n perovskite solar cells, during the anti-solvent deposition step.

Graphical abstract: Enhanced performance of perovskite solar cells via anti-solvent nonfullerene Lewis base IT-4F induced trap-passivation
Paper

Patching defects in the active layer of large-area organic solar cells

Polar-solvent-soluble, electrical-insulating polymers were used to patch the defects inside the active layer via a Maobi coating to enhance the device yield for large-area organic solar cells.

Graphical abstract: Patching defects in the active layer of large-area organic solar cells
Paper

The crystal structure and electrical properties of the oxide ion conductor Ba3WNbO8.5

The crystal structure of the novel oxide ion conductor Ba3WNbO8.5.

Graphical abstract: The crystal structure and electrical properties of the oxide ion conductor Ba3WNbO8.5
Paper

Theoretical study and structural optimization of a flexible piezoelectret-based pressure sensor

An electric-mechanical model for a piezoelectret-based pressure sensor was established. By following the theoretical guidance, we optimized the structure of a piezoelectret pressure sensor. The sensitivity can reach 15 V kPa−1 in the range of 0–2.5 kPa, which can be adjusted to fit different requirements. The sensor and the new model develop a new route for self-powered wearable electronics.

Graphical abstract: Theoretical study and structural optimization of a flexible piezoelectret-based pressure sensor
Paper

Reaction mechanisms and sensitivity of silicon nitrocarbamate and related systems from quantum mechanics reaction dynamics

The intramolecular differences of four compounds lead to significant distinctions in the reaction mechanisms and sensitivity under heating.

Graphical abstract: Reaction mechanisms and sensitivity of silicon nitrocarbamate and related systems from quantum mechanics reaction dynamics
Paper

High performance concentration capacitors with graphene hydrogel electrodes for harvesting salinity gradient energy

Concentration capacitors with graphene hydrogel electrodes are proposed to efficiently harvest salinity gradient energy.

Graphical abstract: High performance concentration capacitors with graphene hydrogel electrodes for harvesting salinity gradient energy
Paper

High performance as-cast semitransparent polymer solar cells

Semi-transparent polymer solar cells (ST-PSCs) were fabricated with PTB7-Th as donor and ITVfIC as acceptor, and the as-cast ST-PSC shows a higher efficiency of 8.21% with AT of 33.7%.

Graphical abstract: High performance as-cast semitransparent polymer solar cells
Paper

Popgraphene: a new 2D planar carbon allotrope composed of 5–8–5 carbon rings for high-performance lithium-ion battery anodes from bottom-up programming

Popgraphene, a new 2D carbon allotrope constructed from 5–8–5 carbon rings, is proposed for use in high-performance lithium-ion battery anodes.

Graphical abstract: Popgraphene: a new 2D planar carbon allotrope composed of 5–8–5 carbon rings for high-performance lithium-ion battery anodes from bottom-up programming
Paper

A polymer design strategy toward green solvent processed efficient non-fullerene polymer solar cells

This work suggests an effective material design strategy to prepare efficient PSCs with a green solvent, which is important in PSCs.

Graphical abstract: A polymer design strategy toward green solvent processed efficient non-fullerene polymer solar cells
Paper

Room temperature solid state dual-ion batteries based on gel electrolytes

The solid-state dual-ion battery delivers a high reversible capacity of 80 mA h g−1, with long-term cycling stability.

Graphical abstract: Room temperature solid state dual-ion batteries based on gel electrolytes
Paper

Plasmon-mediated charge dynamics and photoactivity enhancement for Au-decorated ZnO nanocrystals

Correlations among Au content, SPR-mediated charge transfer and electromagnetic response, and the resultant photoactivity enhancement for ZnO–Au nanocrystals were established.

Graphical abstract: Plasmon-mediated charge dynamics and photoactivity enhancement for Au-decorated ZnO nanocrystals
Paper

Oxygen-deficient anatase TiO2@C nanospindles with pseudocapacitive contribution for enhancing lithium storage

Oxygen-deficient anatase TiO2@C nanospindles are realised via the hydrogenation and carbon coating of TiO2 nanospindles. The produced electrodes exhibit an enhanced electrochemical performance for Li storage.

Graphical abstract: Oxygen-deficient anatase TiO2@C nanospindles with pseudocapacitive contribution for enhancing lithium storage
105 items - Showing page 1 of 2

About this collection

This on-going web collection features all the articles published in Journal of Materials Chemistry A in 2018 marked as HOT, as recommended by referees.  Congratulations to all the authors whose articles are featured!

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