Themed collection Journal of Materials Chemistry A HOT Papers
Microporous metal–organic frameworks for the purification of propylene
The latest advancement in developing MOF adsorbents for effective separation and purification of propylene from propane is summarized, with a focus on molecular exclusion based separation mechanism and propane-selective adsorption.
Metallic active-site engineering: a bridge between covalent triazine frameworks and high-performance catalysts
Engineering metallic active sites (nano-scale/low-coordination/isolated metal active sites and active metal oxide/sulfide) into CTFs is an effective strategy for high-performance and large-scale industrial catalysis.
Research Progress on Constructing Self-Supporting Cathodes of Synergistic Electrocatalytic ORR/OER for Zinc-Air Batteries
Thermocatalytic CO2 conversion by siliceous matter: a review
Silica/silicate-based nanocatalysts have shown great potential for catalytic hydrogenation of CO2 to various value-added chemicals. This review presents the recent development of siliceous matter in this important field of heterogeneous catalysis.
Dynamic molecular tunnel junctions based on self-assembled monolayer for high tunneling current triboelectricity generation
Super-efficient fire safety poly(lactide) enabled by unique radical trapping
Poly(lactic acid) (PLA) as a promising bio-plastic will decompose to small molecule flammable volatiles via chain scission, which thus exhibit poor fire safety and highly restrict its real-world applications.
Inhibition of the P3–O3 phase transition via local symmetry tuning in P3-type layered cathodes for ultra-stable sodium storage
We reconfigure the sodiation/desodiation process of P3-type layered cathodes by a local symmetry tuning strategy to enhance their stability. The cathodes exhibit long-term cycling stability with a higher capacity retention of 74% after 2000 cycles at 1C.
Redox mediators promote electrochemical oxidation of nitric oxide toward ambient nitrate synthesis
Under ambient conditions, using low concentration NO (1%), ultrahigh nitrate formation rates in a two-electrode system can be achieved via the eCOR-NOOR. The structure changes of electrode materials under real reaction conditions are revealed.
Miscibility driven morphology modulation in ternary solar cells
The PDI-EH molecule was synthesized and integrated into ternary OSCs to obtain miscibility-driven morphology optimization. The relationship between the optimized morphology and charge carrier dynamics was explored by PiFM and TP-AFM characterization.
High thermoelectric performance in entropy-driven Ge1−2x−yPbxSnxSbyTe
An ultrahigh zT of 2.5 at 723 K is achieved in an entropy driven Ge0.84Pb0.025Sn0.025Sb0.11Te sample showing a promising output power density (PDmax) of ∼590 mW cm−2 at ΔT = 448 K in a fabricated double leg device.
Modulation of CO2 Adsorption Thermodynamics and Selectivity in Alkali-Carbonate Activated N-Rich Porous Carbons
S-doped C3N5 derived from thiadiazole for efficient photocatalytic hydrogen evolution
Room-temperature magnetism in two-dimensional metal-organic frameworks enabled by electrostatic gating
High-capacity sulfide all-solid-state lithium battery with a conversion-type iron fluoride cathode
rGO-FeF3 composites are synthesized by an in situ solvothermal approach to build efficient electronic/ionic conduction pathways and suppress active material dissolution for ASSBs with high-ionic-conductivity sulfide electrolytes.
The lattice strain dominated catalytic activity in single-metal nanosheets
Porous flexible iridium nanosheets (Ir-PFNSs) with compressive strain were obtained by annealing 3R phase iridium oxide (3R-IrO2) in a hydrogen atmosphere, which can exhibit excellent acid HER activity by a new three-hydrogen-involved mechanism.
An artificial neural network using multi-head intermolecular attention for predicting chemical reactivity of organic materials
A new type of artificial neural network to predict the reaction rate constant from two molecular structures. An explainable model was constructed using the multi-head intermolecular attention technique.
Asymmetric nonfullerene acceptors with isomeric trifluorobenzene-substitution for high-performance organic solar cells
By alternating the substituted position in the terminal end group, two asymmetric non-fullerene acceptor isomers are designed, showing a better device performance for the γ-substituted fashion.
Tailoring stability, catalytic activity and selectivity of covalent metal–organic frameworks via steric modification of metal nodes
A novel and efficient strategy was developed to enhance the stability, control the catalytic activity, and improve the selectivity of Cu(I) cyclic trinuclear unit (Cu-CTU)-based metal–organic frameworks by steric modification of copper nodes.
Efficient Polymer Acceptor with Fluorinated Linkers Enables All Polymer Solar Cells with Efficiency of 15.7%
Insight into fast lithium diffusion and interface stability of disordered rock-salt ω-Li3V2O5 anodes in a wide temperature range
Silicon disulfide for high-performance Li-ion batteries and solid-state electrolytes
A layered silicon disulfide (SiS2) was synthesized on a large-scale via a solid–gas phase reaction and applied as an anode material for Li-ion batteries and solid-state electrolytes for all-solid-state batteries.
Controlling the density of storable charge of surface faradaic layers on Fe2O3 photoanodes for solar rechargeable devices
The density of storable charge (DOSC) is introduced as the number of charges stored in a surface faradaic layer of a semiconductor, and it can be used to describe the charge transfer kinetic process in semiconductor/electrolyte interfaces.
Highly selective photocatalytic CO2 reduction via a lead-free perovskite/MOF catalyst
A lead-free perovskite/MOF catalyst shows a high CO selectivity of 99.5% for photocatalytic CO2 reduction, stemming from efficient charge separation, formation of *COOH intermediates, and prompt CO desorptionof the catalyst.
Manipulating selective amine transformation pathways via cocatalyst-modified monolayer ZnIn2S4 photocatalysts
Cu2S/ZnIn2S4 and Ru2S/ZnIn2S4 composites are constructed to achieve highly selective divergent synthesis of imines and secondary amines via the tunable visible light-driven amine dehydrogenation coupling reaction.
Melamine sponge templated synthesis of nickel nanoparticles encapsulated in B, N co-doped carbon nanotubes towards selective electrosynthesis of hydrogen peroxide
A comparative analysis of the influence of hydrofluoroethers as diluents on solvation structure and electrochemical performance in non-flammable electrolytes
TTE (1,1,2,2-tetrafluoroethyl 2,2,3,3-tetrafluoropropyl ether) shows better performance than BTFE (bis(2,2,2-trifluoroethyl)ether as diluent in a localized highly concentrated electrolyte based on lithium bis(fluorosulfonyl)imide in triethylposphate.
Initiating highly efficient (Bi,Ce)2(O,S)3−x oxysulfide catalysts with rich oxygen vacancies for hydrogen evolution via adjusting valence band configuration
Converting Bi2S3 into an efficient PHER catalyst by defect engineering to form solid solutions with the incorporation of Ce and O into Bi2S3 for bimetal–chalcogen (Bi,Ce)2(O,S)3−x catalysts.
Chloride-doping, defect and interlayer engineering of copper sulfide for superior sodium-ion batteries
A flower-like copper sulfide anode with NH4+ interlayer intercalation, chloride-doping and rich vacancy defects is developed for sodium-ion batteries, demonstrating high reversible capacity and excellent rate capability.
Regioselective acylation attaching aromatic substituents in simple nonfullerene acceptors for efficient organic solar cells
Regioselective acylation was used to prepare aromatic substituted benzodithiophenediones (BDDs) and then construct new nonfullerene acceptors. Nonfullerene Ph-BDD with a bare benzene ring exhibited a high efficiency of 13.64% and good thermal and storage stabilities.
Ultrafine ZnSe/CoSe Nanodots Encapsulated in Core-shell MOFs-Derived Hierarchically Porous N-doped Carbon Nanotubes for Superior Lithium/Sodium Storage
Spin-engineered Cu–Ni metallic aerogels for enhanced ethylamine electrosynthesis from acetonitrile
Spin engineering is an effective strategy to improve the performance of catalysts, but it has been rarely demonstrated for the acetonitrile reduction reaction (ARR) to date.
LEGO-block-inspired versatile triboelectric nanogenerators as power cells to harvest vibration energy
Like batteries, the proposed LI-TENGs are compact and can be rapidly assembled and spliced without additional wires.
Synergistic design of core–shell V3S4@C hosts and homogeneous catalysts promoting polysulfide chemisorption and conversion for Li–S batteries
The synergistic design of 1D core–shell V3S4@C hosts and homogeneous catalyst Co(C5H5)2 is proposed to promote the chemisorption and conversion kinetics of polysulfides towards advanced Li–S batteries with high areal S loading and low E/S ratio.
Photothermal-coupled solar photocatalytic CO2 reduction with high efficiency and selectivity on a MoO3−x@ZnIn2S4 core–shell S-scheme heterojunction
An S-scheme heterojunction of core–shell MoO3−x@ZnIn2S4 is first constructed for photothermal-coupled solar photocatalytic CO2 reduction with high efficiency and selectivity.
Hierarchical Ni2P/Zn–Ni–P nanosheet array for efficient energy-saving hydrogen evolution and hydrazine oxidation
A hierarchical Ni2P/Zn–Ni–P nanosheet array with unique structure and interfacial characteristics shows excellent catalytic performance in energy-saving hydrogen evolution and hydrazine oxidation.
Electrocatalytic sulfion recycling assisted energy-saving hydrogen production using CuCo-based nanosheet arrays
A HER//SOR hybrid water electrolysis system for hydrogen production by using CuCoN/CC as the cathode electrode and CuCoS/CC as the anode electrode.
Ultrathin metal−organic layers/carbon nitride nanosheet composites as 2D/2D heterojunctions for efficient CO2 photoreduction
Metal−organic layers (MOLs), with well-defined, abundant active sites and good electron transport capabilities, are ideal platforms for studying the photoreduction of CO2 to value-added chemicals feedstocks in 2D/2D assembled materials.
Acid-triggered two-stage superlarge redshift absorption for turn-on type photothermal conversion at the first and second near-infrared window
A series of “turn-on” type NIR materials are developed with two-stage superlarge redshifted absorption in the first and second NIR window under the stimulation of protonation for smart photothermal conversion.
Atomic-level orbital coupling in a tri-metal alloy site enables highly efficient reversible oxygen electrocatalysis
An atomic-level orbital coupling strategy was presented to effectively regulate the electronic structures of ultra-small tri-metal Fe–Co–Ni alloy nanoparticles to fabricate an efficient and robust bi-functional oxygen electrocatalyst.
Improving the intrinsic conductivity of δ-MnO2 by indium doping for high-performance neutral aqueous sodium-ion supercapacitors with commercial-level mass-loading
Indium is introduced to δ-MnO2 for the first time. The conductivity of δ-MnO2 can be doubled and a high specific capacity can be achieved at a commercial-level mass loading.
New strategies to improve two-electron oxygen reduction reaction selectivity of polypyrrole-based catalysts
Stabilizing N–H bonds by the hydrogen-bonding interaction in polymerization or transforming the deprotonated –N+– species into C–N bonds by calcining polypyrrole-based catalysts can improve the electrochemical two-electron oxygen reduction reaction.
Ion transport in semi-solid in-salt electrolytes: LiTFSI–H2O as a model system
Several theories have been proposed to explain the co-existence of high conductivity and high salt concentration for water-in-salt electrolytes. Here, we fill the gap related to the structural, physical, and electrochemical properties of the LiTFSI–H2O binary system at high mol kg−1.
Encapsulated C12A7 electride material enables multistep electron transfer process for cross-coupling reactions
A self-supported bifunctional MoNi4 framework with iron doping for ultra-efficient water splitting
The strong doping effect of Fe on MoNi4 has been demonstrated, which achieves a bifunctional water splitting activity and a two-electrode device can be driven by a 1.5 V AAA battery.
Vacancy controlled n–p conduction type transition in CuAgSe with superior thermoelectric performance
The conduction type of CuAgSe can be tuned by chemical composition. The positron technique indicates that n–p transition is controlled by vacancy.
B4C enhances the supported platinum DER/HER performance
The high energy barrier of D–O bond breakage leads to a slow kinetic reaction rate in the electrocatalytic deuterium evolution reaction (DER).
Supramolecular engineering of cathode materials for aqueous zinc-ion hybrid supercapacitors: novel thiophene-bridged donor–acceptor sp2 carbon-linked polymers
Donor–acceptor carbon-linked conjugated polymers (DA-CCPs) with thiophene-S active sites have been used for the first time as cathodes in rechargeable aqueous zinc-ion hybrid supercapacitors, exhibiting a performance surpassing the state of the art.
Enhancing energy storage performance in Na0.5Bi0.5TiO3-based lead-free relaxor ferroelectric ceramics along a stepwise optimization route
A stepwise optimization route yields a general way to design synthetic ESP ceramics. NBT-BST-BMS-VPP ceramics obtain an ultrahigh Wrec of 7.5 J cm−3 under 440 kV cm−1.
High Proton Conductive and Stable Sulfonated Poly(arylene-alkane) for Fuel Cell with Performance over 2.46 W cm-2
Re-investigating the structure-property relationship of the solid electrolyte Li3-xIn1-xZrxCl6 and the impact of In-Zr(IV) substitution
Demonstrating the source of inherent instability in NiFe LDH-based OER electrocatalysts
During their lifetime, the electrocatalytically active NiFe LDH platelets show impressive, but unstable water-splitting capabilities due largely to compositional degradation.
A D–A type polymer as an organic cathode material for sodium-based dual-ion batteries with 3.0 V output voltage
Two D–A type polymers for organic cathodes were designed and synthesized for dual-ion batteries. Among them, the full cells assembled by BPyPz and bismuth provides a satisfactory voltage of 3 V.
Modulating oxygen vacancy concentration on Bi4V2O11 nanorods for synergistic photo-driven plastic waste oxidation and CO2 reduction
Synergistic photo-driven plastic waste oxidation and CO2 reduction on Bi4V2O11 nanorods with abundant oxygen vacancies.
Nitrogen doping to accelerate the phase transition to ordered intermetallic Pt3Co catalyst for the oxygen reduction reaction in fuel cells
An efficient nitrogen doping strategy is developed to accelerate the disorder-to-order phase transition of Pt3Co catalyst, and the as-prepared ordered Pt3Co shows a PEMFC power density of 1.27 W cm−2 at 0.6 V.
Red emissive carbon dots as a fluorescent sensor for fast specific monitoring and imaging of polarity in living cells
This work presents red emissive CDs as a promising fluorescent sensor with excellent photostability, high fluorescence quantum yield, and negligible cytotoxicity for real-time sensing and visualizing polarity changes in mitochondria and lysosomes.
Self-assembly of metal–organosilicate on porous silica substrates for efficient CO2 hydrogenation to methanol
The self-assembly of metal–organosilicate shells on silica substrates and their derived CuZn-catalysts for MeOH synthesis from CO2 hydrogenation.
Effects of state filling and localization on chemical expansion in praseodymium-oxide perovskites
Computational study of Pr-based perovskites supported by experiments uncovering insights and design principles for chemical expansion. Hole location on oxygen is highlighted as a route to achieving near-zero chemical expansion.
Synergism of oxygen–iodine binary vacancies with the interfacial electric field: enhancing CO2 photoreduction over VO–I-BiOCl/BiOI atomic-thin nanosheets
Synergism of oxygen–iodine binary vacancies to interfacial electric field was developed by a cascade electrospray-annealing preparation, which enhanced CO2 photoreduction over VO–I-BiOCl/BiOI atomic-thin nanosheets.
Post cobalt doping and defect engineering of NbSSe for efficient hydrogen evolution reaction
Post cobalt doped NbSSe was synthesized by combining chemical vapor transport and the hydrothermal method, which exhibited excellent HER performance due to the synergistic effect of cobalt doping and S/Se vacancies.
Few-layer MoS2 nanosheets with and without silicon nanoparticles as anodes for lithium-ion batteries
NaCl crystals are employed as a substrate to grow MoS2 nanosheets. On dissolving NaCl, the nanosheets are introduced to silicon nanoparticles using layer-by-layer assembly forming robust MoS2@Si anodes for lithium-ion batteries.
A large size BiVO4 photoanode with high stability for efficient water oxidation and wastewater treatment coupled with H2 evolution
A large size BiVO4 photoanode with high stability for efficient photoelectrochemical water oxidation and TCH degradation coupled with H2 evolution.
Bioinspired hollow porous fibers with low emissivity and conductivity aluminum platelet skin for thermal insulation
Hollow porous fibers with low emissivity and conductivity aluminum platelets skin for thermal insulation.
Self-assembled cathode induced by polarization for high-performance solid oxide fuel cell
Herein, we developed an unsintered LaCo0.6Ni0.4O3−δ-Er0.4Bi1.6O3 cathode for IT-SOFC. The cathode/electrolyte interface is induced via polarization, and competitive performance is achieved.
A multifunctional composite membrane for high-safety lithium-ion batteries
Thermal runaway and dendrite growth in lithium-ion batteries (LIBs) induce serious safety hazards and impede their further applications.
A new automated synthesis of a coke-resistant Cs-promoted Ni-supported nanocatalyst for sustainable dry reforming of methane
A uniform Cs-promoted Ni/Al2O3 nanocatalyst prepared by using a reliable automatic system shows extremely high productivity as well as good stability and coke resistance. The improved stability with doped Cs was elucidated by computational studies.
Understanding the role of Zn vacancy induced by sulfhydryl coordination for photocatalytic CO2 reduction on ZnIn2S4
Zn vacancy ZnIn2S4 tuned Gibbs free energy of *COOH which is the rate determining step of phototcatalytic CO2 reduction from endothermic to exothermic process.
Optimized electron/ion transport by constructing radially oriented channels in MXene hybrid fiber electrodes for high-performance supercapacitors at low temperatures
High-performance all-solid-state fiber supercapacitors assembled with MXene/RGO/PEDOT:PSS hybrid fiber electrodes with radially oriented channels and an anti-freezing electrolyte exhibit excellent capacitance retention at ultralow temperatures.
A single-ion gel polymer electrolyte based on polyimide grafted with lithium 3-chloropropanesulfonyl (trifluoromethanesulfonyl) imide for high performance lithium ion batteries
A polyimide-based single-ion polymer PI-LiCPSI was prepared. PI-SIGPE obtained by compounding of PI-LiCPSI and PVDF-HFP showed good mechanical properties due to the rigid frame and strong interface, and also possessed excellent electrochemical and cycling performance.
Building a rigid-soft coupling interphase by a reduction–oxidation collaborative approach with lithium difluorobis(oxalato) phosphate additives
Based on the reduction and oxidation product property study of lithium difluorobis(oxalato) phosphate, a gomphosis-like solid electrolyte layer is constructed, and proven to be rigid-soft coupling, increasing the stability of interphases.
Single Pd atoms supported on ultra-thin bismuth tungstate nanosheets with oxygen vacancies as an efficient photocatalyst
The O vacancies of ultra-thin bismuth tungstate confine Pd atoms to produce a Pd-VO-UBWO SAC, which exhibits high photocatalytic activity for NO oxidation and RhB degradation.
About this collection
This on-going web collection features all the articles published in Journal of Materials Chemistry A in 2023 marked as HOT, as recommended by referees. Congratulations to all the authors whose articles are featured!