Themed collection 2018 Journal of Materials Chemistry A HOT Papers
Recent progress in porphyrin-based materials for organic solar cells
This article is written to provide an up-to-date review of porphyrin-based materials used in organic solar cells (OSCs).
A review on morphology engineering for highly efficient and stable hybrid perovskite solar cells
Morphology engineering has been recognized as an effective way to attain highly efficient and stable hybrid perovskite solar cells.
Realising the environmental benefits of metal–organic frameworks: recent advances in microwave synthesis
Review detailing the use of microwave technology for the synthesis and scale-up of metal–organic frameworks.
Spinel photocatalysts for environmental remediation, hydrogen generation, CO2 reduction and photoelectrochemical water splitting
The fundamental aspects, photocatalytic applications and ways to enhance the performance of spinels are systematically reviewed in this paper.
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.
Single-atom catalysts and their applications in organic chemistry
Recent advances in single atom catalysts and their applications in organic chemistry are fully summarized in this review.
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).
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.
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.
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.
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.
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.
Direct synthesis of FeS/N-doped carbon composite for high-performance sodium-ion batteries
Direct synthesis of FeS/N-doped graphitic carbon composite for high-performance sodium-ion batteries.
Ultra-stretchable, bio-inspired ionic skins that work stably in various harsh environments
We report a bio-inspired ionic skin with high stretchability (>1700%), transparency (>80%) and sensitivity (2 kPa−1).
Ti3C2Tx (T = F, OH) MXene nanosheets: conductive 2D catalysts for ambient electrohydrogenation of N2 to NH3
Conductive Ti3C2Tx (T = F, OH) MXene nanosheets act as efficient 2D catalysts for ambient electrohydrogenation of N2 to NH3.
Synthesis of amorphous boride nanosheets by the chemical reduction of Prussian blue analogs for efficient water electrolysis
Amorphous cobalt–nickel boride nanosheets are synthesised by the chemical reduction of Prussian blue analogs, and demonstrate comparable and bifunctional electrocatalytic activity for cost-efficient overall water splitting.
Overcoming the morphological and efficiency limit in all-polymer solar cells by designing conjugated random copolymers containing a naphtho[1,2-c:5,6-c′]bis([1,2,5]thiadiazole)] moiety
We developed a series of ternary random copolymers for all-PSCs, which presented superior performances to their blended counterparts.
Metallic MoN ultrathin nanosheets boosting high performance photocatalytic H2 production
MoN nanosheets for the first time serve as a highly active co-catalyst to greatly enhance the photocatalytic H2 production of TiO2.
Establishing new scaling relations on two-dimensional MXenes for CO2 electroreduction
With alternating binding of reaction intermediates, O-terminated MXenes display low theoretical overpotential for CO2 reduction reaction.
Proton-mediated energy storage in intermediate-temperature solid-oxide metal–air batteries
Proton-containing ceramics have been investigated for the first time as the supporting phase for the energy storage medium in intermediate-temperature (IT) solid-oxide metal–air redox batteries.
Synthesis of ZIF-67 nanocubes with complex structures co-mediated by dopamine and polyoxometalate
ZIF-67 nanocubes with sophisticated structures are synthesized.
Promising ITO-free perovskite solar cells with WO3–Ag–SnO2 as transparent conductive oxide
Substituting indium-tin-oxide, one-pot deposition of WO3/Ag/SnO2 films with high transmittance and low sheet resistance enables the formulation of high-performance perovskite solar cells.
Controllable fabrication of redox-active conjugated microporous polymers on reduced graphene oxide for high performance faradaic energy storage
Two-dimensional (2D) composites composed of redox active conjugated microporous polymer (CMP) and reduced graphene oxide (rGO) enable efficient faradaic energy storage.
Magnesium ion based organic secondary batteries
Based on an n-type PDI–EDA anode, a p-type PTPAn cathode and a Mg(ClO4)2/AN electrolyte, a magnesium ion based secondary battery with organic electrodes exhibits excellent electrochemical performances.
An azine-linked covalent organic framework ACOF-1 membrane for highly selective CO2/CH4 separation
A defect-free and continuous 2D azine-linked ACOF-1 membrane on a porous alumina support is developed for highly selective CO2/CH4 separation.
Energetic salts of 4-nitramino-3-(5-dinitromethyl-1,2,4-oxadiazolyl)-furazan: powerful alliance towards good thermal stability and high performance
A new series of 4-nitramino-3-(5-dinitromethyl-1,2,4-oxadiazolyl)-furazan-based energetic compounds which are competitive with HMX was synthesized in four steps with an overall yield of ∼50% by using a straightforward method.
Effects of fused-ring regiochemistry on the properties and photovoltaic performance of n-type organic semiconductor acceptors
The effects of fused-ring regiochemistry on the physicochemical and photovoltaic properties of n-type organic semiconductor (n-OS) acceptors are investigated.
A eutectic salt-assisted semi-closed pyrolysis route to fabricate high-density active-site hierarchically porous Fe/N/C catalysts for the oxygen reduction reaction
A general “eutectic salt-assisted semi-closed pyrolysis approach” is presented for the fabrication of a high-density active-site hierarchically porous Fe/N/C catalyst.
Achieving high-performance thick-film perovskite solar cells with electron transporting Bingel fullerenes
Two electron-transporting Bingel fullerenes have been developed for achieving thick-film perovskite solar cells with efficiencies beyond 19% with perovskite layers over 1 micrometer, unveiling the subtle molecular interaction between Bingel fullerenes and perovskites strongly influences the device hysteresis and performance.
A cake making strategy to prepare reduced graphene oxide wrapped plant fiber sponges for high-efficiency solar steam generation
A cake making strategy is developed to prepare reduced graphene oxide wrapped plant fiber sponges for high-efficiency solar steam generation.
Polymeric acid-doped transparent carbon nanotube electrodes for organic solar cells with the longest doping durability
This communication reports the discovery of an effective and long-lasting p-type dopant polymeric acid for transparent carbon electrodes.
Design and synthesis of medium-bandgap small-molecule electron acceptors for efficient tandem solar cells
Organic solar cells based on new medium-bandgap small-molecule electron acceptors reach PCEs of 10.05% and 11.86% in single-junction and tandem devices, respectively.
Ionic activation via a hybrid IL–SSE interfacial layer for Li–O2 batteries with 99.5% coulombic efficiency
A Li–O2 battery with an in situ formed IL–SSE hybrid interfacial layer achieved 99.5% coulombic efficiency and a significantly improved capacity retention. The organic–inorganic hybrid layer exhibited ionic activation behavior through a dispersing redistribution and bridging process, revealing the beneficial interaction of IL and SSE in the cycling in safe IL–SSE-based Li–O2 batteries.
A solar rechargeable battery based on the sodium ion storage mechanism with Fe2(MoO4)3 microspheres as anode materials
A solar rechargeable battery based on Na-ion storage presents feasible photon–electron conversion, and energy storage and release capability.
A single ion conducting separator and dual mediator-based electrolyte for high-performance lithium–oxygen batteries with non-carbon cathodes
Lithium–oxygen batteries with non-carbon cathode realize largely-improved performance by designing mediators and Li+-Nafion separator to prevent self-discharge and shuttle problems.
Robust graphene-wrapped PtNi nanosponge for enhanced oxygen reduction reaction performance
A graphene-wrapped 3D-PtNi nanosponge was synthesized using carbon dots as a structure-directing agent.
Super-flexible bis(trifluoromethanesulfonyl)-amide doped graphene transparent conductive electrodes for photo-stable perovskite solar cells
Super-flexible bis(trifluoromethanesulfonyl)-amide (TFSA)-doped graphene transparent conducting electrode (GR TCE)-based FAPbI3 − xBrx perovskite solar cells with 18.9% power conversion efficiency (PCE) for a rigid device and 18.3% for a flexible one are demonstrated because the TFSA-doped GR TCE reveals high conductivity and high transmittance.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Supercritical CO2-assisted synthesis of 3D porous SiOC/Se cathode for ultrahigh areal capacity and long cycle life Li–Se batteries
A facile biotemplating method with the assistance of a supercritical CO2 technique has been developed to construct a unique 3D porous SiOC/Se cathode for ultrahigh areal capacity and long cycle life Li–Se batteries.
Mesoporous single-crystalline MnOx nanofibers@graphene for ultra-high rate and long-life lithium-ion battery anodes
We report a novel strategy for the spatial confinement of mesoporous single-crystalline MnOx nanofibers within a graphene shell (PSCMnOx@G). The PSCMnOx@G exhibits ultra-high rate performance (1072 mA h g−1 at 0.1 A g−1 and 419 mA h g−1 at 10 A g−1) and excellent cycling stability.
A donor–acceptor semiconducting polymer with a random configuration for efficient, green-solvent-processable flexible solar cells
Random configuration approach simultaneously enhances charge mobility, solubility in a green solvent, and flexibility of a semiconducting polymer.
Ultrathin CoFe-layered double hydroxide nanosheets embedded in high conductance Cu3N nanowire arrays with a 3D core–shell architecture for ultrahigh capacitance supercapacitors
Ultrathin layered double hydroxide (LDH) nanosheets are a promising candidate as the electrode material for energy storage due to the ultrafast mass diffusion and greater specific surface area.
First-principles characterization of two-dimensional (CH3(CH2)3NH3)2(CH3NH3)n−1GenI3n+1 perovskite
A novel two-dimensional Ge-based hybrid perovskite is proposed for potential optoelectronic applications.
Phosphorized polyoxometalate-etched iron-hydroxide porous nanotubes for efficient electrocatalytic oxygen evolution
FeOOH/FePOx porous nanotubes were prepared with polyoxometalates for high-performance electrocatalytic OER, affording a low overpotential of 230 mV.
High-performance ternary organic solar cells with photoresponses beyond 1000 nm
Panchromatic ternary organic solar cells with photoresponses beyond 1000 nm and power conversion efficiencies as high as 12.1% were fabricated using low-bandgap polymer PTB7-Th as a donor and ultra low-bandgap F8IC and mid-bandgap IDT-2BR as nonfullerene acceptors.
Chemically activated hollow carbon nanospheres as a high-performance anode material for potassium ion batteries
Hollow carbon nanospheres with enlarged interlayer spacing as a high-performance anode material for potassium ion batteries.
One-step, room temperature generation of porous and amorphous cobalt hydroxysulfides from layered double hydroxides for superior oxygen evolution reactions
One-step, room-temperature etching and sulfuration of CoAl-LDH to form porous and amorphous CoSx(OH)y for superior oxygen evolution reaction.
Simple-structured small molecule acceptors constructed by a weakly electron-deficient thiazolothiazole core for high-efficiency non-fullerene organic solar cells
A novel strategy is proposed to construct simple-structured SMAs using a weakly electron-deficient thiazolothiazole (TTz) core. The highest PCE of 8.77% is recorded for TTz1-based OSCs, which is the highest efficiency to date among non-fullerene OSCs with simple-structured SMAs.
Paragenesis BN/CNTs hybrid as a monoclinic sulfur host for high rate and ultra-long life lithium–sulfur battery
A paragenesis BN/CNT hybrid was prepared via a one-step co-pyrolysis method. Used as a sulfur host for Li–S batteries, the cathode exhibits high active-sulfur utilization, superior cycling stability and excellent rate capability.
One-pot formic acid dehydrogenation and synthesis of benzene-fused heterocycles over reusable AgPd/WO2.72 nanocatalyst
Nanocatalyst with AgPd nanoparticles coupled to WO2.72 nanorods combines multi-step reactions in one-pot to prepare complex heterocycles under mild conditions.
Lithium poly-acrylic acid as a fast Li+ transport media and a highly stable aqueous binder for Li3V2(PO4)3 cathode electrodes
Lithium poly-acrylic acid facilitates Li+ ion transport through the electrode interface via reversible H+/Li+ exchange, constructs a stable electronic conductive network, and modifies the composition of the cathode-electrolyte interface film.
Stabilization of all-solid-state Li–S batteries with a polymer–ceramic sandwich electrolyte by atomic layer deposition
After progressive charge/discharge, LATP without an ALD coating was dramatically reduced while the ALD protected LATP showed significantly enhanced stability.
Porous NiCoP in situ grown on Ni foam using molten-salt electrodeposition for asymmetric supercapacitors
The molten-salt electrodeposition method is applied for the construction of porous NiCoP for the first time.
Excimer emission induced intra-system self-absorption enhancement – a novel strategy to realize high efficiency and excellent stability ternary organic solar cells processed in green solvents
A novel ternary OSC with enhanced PCE and environmental stability has been obtained via utilizing excimer enhanced energy transfer.
A mechanically strong and sensitive CNT/rGO–CNF carbon aerogel for piezoresistive sensors
A mechanically strong, sensitive and lightweight CNT/rGO–CNF carbon aerogel is fabricated by synergistic assembly of CNFs and CNTs to form ordered wave-shaped rGO layers and reinforcing the carbon layers.
MOF-derived and nitrogen-doped ZnSe polyhedra encapsulated by reduced graphene oxide as the anode for lithium and sodium storage
MOF-derived and nitrogen-doped ZnSe@rGO composites have been fabricated as high-performance Li/Na-storage anode materials.
Molybdenum carbide chemical sensors with ultrahigh signal-to-noise ratios and ambient stability
In this study, we investigate the gas sensing performance of molybdenum carbides for the first time and they show ultra-high signal-to-noise ratios and excellent ambient stability.
Building a cycle-stable sulphur cathode by tailoring its redox reaction into a solid-phase conversion mechanism
A cycle-stable sulfur cathode with a solid-phase conversion mechanism is developed by building a SEI layer on S/C particles.