Themed collection Journal of Materials Chemistry A HOT Papers
New framework of integrated electrocatalysis systems for nitrogen fixation
The novel hybridized and integrated nitrogen fixation system has been demonstrated based on the self-power triboelectric nanogenerators as the power generator, which supplies the new framework for future energy harvesting and conversion.
Immobilization strategies for porphyrin-based molecular catalysts for the electroreduction of CO2
Using homogeneous and heterogeneous metalloporphyrin-based catalysts for electroreduction of CO2 to value-added materials.
Recent advances in oriented metal–organic frameworks for supercapacitive energy storage
The recent advances in oriented MOFs as electrode materials and solution to poor conductivity as well as random orientations have been discussed.
Recent advances of non-lithium metal anode materials for solid-state lithium-ion batteries
This review, for the first time, systematically summarizes the application of C, Si, Sn, Bi, metal hydrides and lithium titanate as anode materials in solid-state lithium batteries.
MBenes: progress, challenges and future
The synthesis methods, properties and applications for energy storage and electrocatalysis of MBenes were summarized. Furthermore, discussions and perspectives on the existing problems, major challenges and future development of MBenes were provided.
Oxygen vacancies in a catalyst for VOCs oxidation: synthesis, characterization, and catalytic effects
This review about the recent advances in oxygen vacancies for catalytic oxidation of volatile organic compounds considers the construction strategies, characterization methods and catalytic effects of oxygen vacancies in catalysts.
Rational design of integrated electrodes for advancing high-rate alkaline electrolytic hydrogen production
The rational design of integrated electrodes and the strategies for improving their performances are reviewed to advance high-rate alkaline water electrolysis. Such electrodes could be extended for other emerging electrocatalytic hydrogen production systems.
Lead-free hybrid perovskite photocatalysts: surface engineering, charge-carrier behaviors, and solar-driven applications
Lead-free hybrid perovskites (LFHPs) have sparked considerable research interest in photocatalysis. This review introduces the surface engineering and photophysical behaviors of LFHPs for diverse solar-induced photocatalytic applications.
Understanding (photo)electrocatalysis for the conversion of methane to valuable chemicals through partial oxidation processes
The review overviews the mechanism of C–H activation through electron–hole mediated pathways in photo and electrocatalysis, and introduces various strategies to increase the conversion of CH4 as well as the selectivity to desired products.
Organic electrolyte design for practical potassium-ion batteries
In this review, recent electrolyte design strategies and progress are given, along with the discussion of relative key features and properties, as well as the practical design and considerations.
Recent strategies for activating the basal planes of transition metal dichalcogenides towards hydrogen production
The currently strategies for activating the TMDC basal planes toward hydrogen evolution reaction were summarized, which are divided into internal and external regulation, depending on whether the pristine structure is altered or not.
Double network hydrogels for energy/environmental applications: challenges and opportunities
Since the advent of double network (DN) hydrogels nearly 20 years ago, they have flourished as smart soft materials.
Recent advances in various applications of nickel cobalt sulfide-based materials
In this review, we focus on the recent applications of Ni–Co–S materials (NCSs) in energy storage devices, electrocatalysis, photocatalysis, sensors and microwave absorption, and highlight the intercommunity of NCSs in different application fields.
Recent progress and advances in electrochromic devices exhibiting infrared modulation
This review provides a route for constructing advanced IR-ECDs towards real-world applications in smart windows, IR sensors, thermal control and military camouflage.
Advancements in organic small molecule hole-transporting materials for perovskite solar cells: past and future
With a special emphasis on chemistry, this study presents a comprehensive review of the various molecular design, structural properties, and organic synthesis of novel small molecule HTMs, as well as their impact on photovoltaic performance.
Challenge-driven printing strategies toward high-performance solid-state lithium batteries
Printing techniques promote the development of solid-state batteries by constructing high performance cathodes, dendrite-free anodes, and ideal solid-state electrolytes with versatile structures and configurations.
Non-lithium-based metal ion capacitors: recent advances and perspectives
A comprehensive overview of the research progress toward non-lithium metal ion capacitors, including the mechanisms, electrode materials, electrolytes, and novel device designs, is presented with further perspectives.
Structural design and mechanism analysis of hierarchical porous carbon fibers for advanced energy and environmental applications
The progress in the synthesis of porous carbon fibers and their performance improvement mechanisms for energy and environmental applications are comprehensively reviewed, providing guidelines for the future development of this emerging material.
Oriented construction of efficient intrinsic proton transport pathways in MOF-808
An oriented strategy to build efficient intrinsic proton transport pathways in MOF-808 by functionalizing the MOF skeleton has been proposed.
One-shot transformation of ordinary polyesters into vitrimers: decomposition-triggered cross-linking and assistance of dynamic covalent bonds
One-shot transformation of ordinary polyesters into vitrimers is demonstrated, based on a novel cross-linking mechanism involving three distinct steps of hydrolysis, epoxy-opening, and trans-esterification reactions.
A novel polyelectrolyte-based artificial light-harvesting system for photocatalysis of cross-dehydrogenation coupling
Using polyelectrolyte materials, a simple and effective artificial light-harvesting system is constructed. This work promotes the application prospect of artificial light-harvesting system based on polyelectrolyte materials in photocatalysis.
Rationally regulating the terminal unit and copolymerization spacer of polymerized small-molecule acceptors for all-polymer solar cells with high open-circuit voltage over 1.10 V
Two polymerized small molecule acceptors with wide bandgaps of ∼1.65 eV and high-lying LUMO energy levels above −3.70 eV were designed by introducing a novel terminal unit. Efficient all-PSCs with high VOC over 1.10 V were achieved.
Modulating surface charges of bismuth tantalum oxychloride nanoplates for promoting photogenerated charge separation
Modulation of anisotropic facets and surface charge properties of semiconductor photocatalysts play significant roles in accelerating the photogenerated charge separation in heterogeneous photocatalysis.
Constructing stable charge redistribution through strong metal–support interaction for overall water splitting in acidic solution
A method through the SMSI and heterostructure of Pt–RuO2@KB to construct a stable charge redistribution is first proposed, showing superior overall water splitting performance, with excellent intrinsic activity, catalytic activity and stability in 0.1 M HClO4 electrolyte.
Highly efficient oxygen evolution catalysis achieved by NiFe oxyhydroxide clusters anchored on carbon black
The NiFe-oxyhydroxide/C OER catalyst is prepared through the hydrolysis of nickel and iron salts in the presence of carbon black. It exhibits an overpotential of 269.6 mV at 10 mA cm−2 and a mass activity of 593.1 A g−1 at an overpotential of 320 mV.
Duetting electronic structure modulation of Ru atoms in RuSe2@NC enables more moderate H* adsorption and water dissociation for hydrogen evolution reaction
With a duetting electronic structure modulation of Ru atoms, H* adsorption and water dissociation energies are optimized, allowing RuSe2@NC catalysts with higher HER activity than that of Pt catalysts and promising industrial-scale applications.
Stabilizing atomically precise metal nanoclusters as simultaneous charge relay mediators and photosensitizers
Atomically precise metal nanoclusters (NCs) are judiciously stabilized as simultaneous charge relay mediators and photosensitizers for photocatalytic organic transformation.
Coupling denitrification and ammonia synthesis via selective electrochemical reduction of nitric oxide over Fe2O3 nanorods
Fe2O3/CP acts as an electrocatalyst enabling efficient NH3 generation via NO reduction, capable of attaining a faradaic efficiency of 86.73% and an NH3 yield of 78.02 μmol h−1 cm−2. The Fe2O3-based Zn–NO battery offers a power density of 1.18 mW cm−2.
Incorporation of free halide ions stabilizes metal–organic frameworks (MOFs) against pore collapse and renders large-pore Zr-MOFs functional for water harvesting
The incorporation of free halide ions into MOF-808 makes it a promising water-harvesting material with high working capacity and good cycle stability.
Cu clusters/TiO2−x with abundant oxygen vacancies for enhanced electrocatalytic nitrate reduction to ammonia
10Cu/TiO2−x exhibits outstanding electrocatalytic performance toward nitrate reduction to ammonia due to the abundant oxygen vacancies at the interface.
Engineering of the alkyl chain branching point on a lactone polymer donor yields 17.81% efficiency
Near-backbone manipulation of the alkyl chain branching point yields an efficient polymer donor L3 for organic solar cells.
Magnetron sputtering tuned “π back-donation” sites over metal oxides for enhanced electrocatalytic nitrogen reduction
Herein, Ni3+ and oxygen vacancies were synergistically integrated on NiO@TiO2 by magnetron sputtering, providing nearly 10-fold higher yield and faradaic efficiency.
“All-in-one” hypergolic metal–organic frameworks with high energy density and short ignition delay
A type of all-in-one hypergolic MOF has been described, in which CTB ligands as triggers impart active sites for the ignition reaction and imidazole ligands with different substituent groups as bandgap mediators could optimize the hypergolicity.
Introducing oxophilic metal and interstitial hydrogen into the Pd lattice to boost electrochemical performance for alkaline ethanol oxidation
Stable PdCoH nanosheets for efficient EOR were designed by introducing oxophilic metal cobalt and interstitial hydrogen into the Pd lattice. The synergistic effect of Co and H atoms boosts EOR performance with high CO tolerance and C1 selectivity.
Triggering interfacial activity of the traditional La0.5Sr0.5MnO3 cathode with Co-doping for proton-conducting solid oxide fuel cells
Doping the Co element into the traditional La0.5Sr0.5MnO3−δ cathode material triggers the activity of the cathode/electrolyte interface in the composite cathode, leading to impressively high cell performance for proton-conducting solid oxide fuel cells.
Probing heat generation and release in a 57.5 A h high-energy-density Li-ion pouch cell with a nickel-rich cathode and SiOx/graphite anode
This study clarifies the heat generation and release of a 57.5 Ah HED (266.9 W h kg−1) Li-ion cell with a nickel-rich cathode and SiOx/graphite anode. Significant heat accumulation and delayed heat release effects in large-format cells are uncovered.
Self-templated construction of peanut-like P3-type K0.45Mn0.5Co0.5O2 for highly reversible potassium storage
Uniform peanut-like P3-type K0.45Mn0.5Co0.5O2 hierarchical microparticles are fabricated through an elegant self-templating method, demonstrating enhanced potassium storage performance.
Rhodium-cobalt alloy bimetallene towards liquid C1 molecules electrooxidation in alkaline media
Stabilization of the ferrielectric phase in NaNbO3-based lead-free ceramics for a wide-temperature large electrocaloric effect
The newly discovered high-temperature ferrielectric phase in NaNbO3 is stabilized at room temperature by compositional modification, providing the basis for obtaining a giant electrocaloric effect in a wide temperature range.
Few-layered V2C MXene derived 3D V3S4 nanocrystal functionalized carbon flakes boosting polysulfide adsorption and catalytic conversion towards Li–S batteries
Few-layered V2C MXene derived 3D V3S4 nanocrystal functionalized carbon flakes are controllably fabricated as an integrated host of sulfur for Li–S batteries, thanks to their strong chemical/physical adsorption and high catalytic activity.
Co-doped Ni–Mo oxides: highly efficient and robust electrocatalysts for urea electrooxidation assisted hydrogen production
Electrolysis systems constructed by anodic urea oxidation reaction (UOR) and cathodic hydrogen evolution reaction (HER) have received considerable attention in sustainable energy and waste utilization.
Self-assembly of biomass-based hybrid hydrogel electrode for an additive-free flexible supercapacitor
Lignin-rich black liquor produced from paper-making industries causes severe eco-issues, and how to make full use of it to gain an environmental and economic balance has been gaining increasing attention.
Boosting the interfacial hydrogen migration for efficient alkaline hydrogen evolution on Pt-based nanowires
The interfacial hydrogen migration on binary Pt-based alloy nanowires is thermodynamically and kinetically boosted by P-doping to enhance the supply of dissociated hydrogen, resulting in a substantially improved alkaline HER.
A simple and effective host for sodium metal anode: a 3D-printed high pyrrolic-N doped graphene microlattice aerogel
A N-doped graphene microlattice aerogel fabricated by a 3D printing technology followed by N2 plasma treatment is employed as Na metal host. Experimental and calculation results show the sodiophilic site is mainly originated from pyrrolic-N defects.
Model structures of molten salt-promoted MgO to probe the mechanism of MgCO3 formation during CO2 capture at a solid–liquid interface
Model groove structures of molten salt-promoted MgO-based CO2 sorbents. The number of nucleation sites are not affected by the depth of the groove, while there is a large dependence of crystal growth on groove depth.
Y2Ti2O5S2 – a promising n-type oxysulphide for thermoelectric applications
A hybrid-DFT study shows Y2Ti2O5S2 is a promising earth-abundant thermoelectric with maximum ZT of 1.18 at 1000 K.
Fabrication of porous imidazole polymerized ionic liquids with fast ion diffusing kinetics for super lithiation anode materials in lithium-ion batteries
Porous imidazole polymerized ionic liquids (PILs-Im) with fast Li+ diffusion kinetics and numerous molecular pores have been used as anodes in lithium-ion batteries for the first time.
Recyclable Optical Bioplastics Platform for Solid State Red Light Harvesting via Triplet-triplet Annihilation Photon Upconversion
Methane assisted catalyst synthesis and catalytic conversion of oleic acid
CH4-assisted synthesis of ZSM-5 enhances deoxygenation of oleic acid with methane as a co-reactant. Synthesis under CH4 environment produces a potential memory effect, yielding benzylic site and CO2 incorporation of the CH4 species.
A hydrophobic layer of amino acid enabling dendrite-free Zn anodes for aqueous zinc-ion batteries
The zinc L-cysteine functional layer was constructed by in situ etching Zn anode in 1 M L-cysteine solution. This functional layer not only improves the hydrophobicity and corrosion resistance of zinc anode, but also guides uniform zinc deposition.
A waterbomb origami tower for convertible photothermal evaporation
A portable waterbomb origami pattern-based tower-like structure, named an “origami tower”, works as a convertible photothermal evaporator floating on water for efficient solar-driven interfacial desalination under one sun illumination.
Achieving a highly-safe supercapacitor via the combination of temperature-responsive hydrogel-electrolyte and electrochromic electrodes
Optimize Sequence Structure by Stepwise-Feeding Terpolymerization for High-Performance Organic Solar Cells
Rational design of double-shelled Cu2MoS4@N-doped carbon hierarchical nanoboxes toward fast and stable sodium-ion batteries
Double-shelled Cu2MoS4@NC nanoboxes, composed of an outer shell of N-doped carbon supported on the inner shell of hierarchical Cu2MoS4 nanosheets, are synthesized by a delicate template-based strategy and exhibit enhanced sodium storage performance.
A synergistic anti-corrosion system based on durable superhydrophobic F-SiO2/epoxy coatings and self-powered cathodic protection
This work demonstrates a cost-effective and large-scale strategy for preparing a superhydrophobic F-SiO2/epoxy resin coating based self-powered synergistic anti-corrosion system for effectively protecting metals from corrosion.
H2-production and electron-transfer mechanism of a noble-metal-free WO3@ZnIn2S4 S-scheme heterojunction photocatalyst
A novel noble-metal-free WO3@ZnIn2S4 heterojunction showed outstanding photocatalytic H2-production activity resulting from S-scheme electron/hole separation and a lower H2-evolution barrier as evidenced by DFT calculation, in situ XPS and TRPL.
A nitrogen-doped amorphous/graphitic hybrid carbon material derived from a sustainable resource for low-cost K-ion battery anodes
We developed an N-doped carbon material as a low-cost K-ion battery anode from sustainable coffee grounds via a simple pyrolysis process. Combined with a Prussian blue/graphene composite, the anode demonstrated practical acceptability.
Boosting of overall water splitting activity by regulating the electron distribution over the active sites of Ce doped NiCo–LDH and atomic level understanding of the catalyst by DFT study
Ce3+ ion doped NiCoLDHs have applied as a promising electrocatalysts for water splitting. 9.715 times high TOF has observed as a result of Ce doping. DFT study shows that Co-3d states are highly responsible for catalytic activity of the catalyst.
Electrochemically induced catalytic adsorption sites in spent lithium-ion battery cathodes for high-rate vanadium redox flow batteries
Spent LIB cathode active materials (spent LCO/LMO/LFP), which have undergone many cycles and Li electrochemical tuning, show promising results as an electrocatalyst with a change in the electronic structure and an increase in oxygen vacancies.
Confinement catalysis of the single atomic vacancy assisted with aliovalent ion doping enabled efficient NO electroreduction to NH3
A multifunctional sustainable ionohydrogel with excellent low-hysteresis-driven mechanical performance, environmental tolerance, multimodal stimuli-responsiveness, and power generation ability for wearable electronics
The defects of conductive hydrogels, such as high internal friction, poor performance at freezing temperatures, and evaporation during long-term storage, restrict their application in wearable electronics.
Synergy of non-lithium cation doping and lithium concentration affecting lithium ion transport in solid electrolyte
Surface reconstruction through cathodic activation of first-row transition metal phosphides for enhanced hydrogen evolution
The hydrogen evolution reaction (HER) strongly depends on the electronic structure and local microstructures of active sites on the real catalytic surface.
Selective electrocatalytic reduction of nitrate-to-ammonia using Co(II)-decorated TiO2 nanosheets
Air-permeable and flexible multifunctional cellulose-based textiles for bio-protection, thermal heating conversion, and electromagnetic interference shielding
An air-permeable and flexible wearable textile with excellent antimicrobial activity (>99.99%), exceptional heating performance (dual-driven energy conversion and fast thermal response), and outstanding EMI shielding efficiency is reported.
Strain tunable nanoporous r-N-GDY membrane for efficient seawater desalination
The r-N-GDY filter can be switched between a high-flux “open” state (up to 81.8 L per cm2 per day per MPa) and a “closed” state (4% along the ZZ-direction) by applying tensile strain along different directions, yielding a highly tunable nanopore interface.
Anchoring ultrafine CdS nanoparticles in TpPa-1-COF: a type II heterojunction for enhanced photocatalytic N2 fixation
A type II heterojunction CdS/TpPa-1 with enhanced photocatalytic N2 fixation performance was constructed by anchoring ultrafine CdS nanoparticles in the TpPa-1-COF matrix.
The continuous fabrication of a high-performance triboelectric nanogenerator by a roll-to-roll process
It illustrates the process of the continuous fabrication of a high-performance TENG by a UV-induced polymerization strategy.
A hybrid trimetallic–organic framework-derived N, C co-doped Ni–Fe–Mn–P ultrathin nanosheet electrocatalyst for proficient overall water-splitting
Fabrication of hybrid trimetallic-organic framework-derived N, C co-doped Ni–Fe–Mn–P ultrathin nanosheet electrocatalyst demonstrating excellent performance with low overpotentials and cell voltage for HER, OER and overall water splitting.
Phase transition with in situ exsolution nanoparticles in the reduced Pr0.5Ba0.5Fe0.8Ni0.2O3−δ electrode for symmetric solid oxide cells
A novel, highly active perovskite catalyst Pr0.5Ba0.5Fe0.8Ni0.2O3−δ was developed. Thanks to its phase transition and exsolved nanoparticles, the quasi symmetric solid oxide cells show favorable electrochemical performance and stability.
About this collection
This on-going web collection features all the articles published in Journal of Materials Chemistry A in 2022 marked as HOT, as recommended by referees. Congratulations to all the authors whose articles are featured!