Themed collection Journal of Materials Chemistry A HOT Papers

Ultrafine intermetallics (<5 nm) offer unique catalytic properties but face sintering challenges. We highlight carbon-supported synthesis strategies for precise control, focusing on electrocatalytic applications and future directions.

This perspective highlights how electrode substrate choice critically affects electrocatalyst performance in water splitting, guiding researchers to design better catalysts by leveraging each substrate’s unique properties.

Zinc–air batteries (ZABs) stand at the forefront of energy storage technologies. However, challenges like slow kinetics and low rechargeability persist. MOF–MXene hybrids enhance performance, enabling sustainable ZAB technology.

This review comprehensively summarizes the recent advances in OSC reproducibility of organic solar cells from material synthesis, film preparation, and interfacial & electrode, which would provide significant insights into large-scale fabrication.

This review explores the properties of strontium iridate (SrIrO₃) and its potential as a high-performance catalyst for water splitting in both acidic and alkaline environments, providing key insights for the advancement of electrolysis technologies.

This review systematically summarizes the cutting-edge development of covalent organic framework-derived functional interphases for improving Zn chemistry in aqueous zinc-ion batteries.

This paper reviews the working principles and key parameters of TJPSCs and presents recent research progress, focuses on how component optimization, interface engineering, and charge transport layer improvements influence efficiency.

A review about 2D covalent organic frameworks as organic electrode materials for aqueous batteries.

This review provides a comprehensive overview of the current development of smart batteries, which can be divided into three parts: smart materials, smart manufacturing and smart sensing.

By adjusting the composition of the inner Helmholtz plane and the outer Helmholtz plane, it is expected to improve the desolvation structure of zinc ions, inhibit the side reaction of zinc anode and enhance the long-cycle performance of the battery.

This review clearly elucidates the lineage of the development of NO₃⁻RR from the theoretical mechanism to practical reactions and deepens the understanding of NO₃⁻RR, pointing out the direction for the advanced design of NO₃⁻RR electrocatalysts.

Sodium-ion batteries (SIBs) have emerged as a compelling alternative to lithium-ion batteries, driven by the abundance of raw materials and lower costs.

The utilization of nickel-based catalysts in hybrid CO₂ electrolysis systems enhances the efficiency of CO₂ reduction by coupling low-energy alternative oxidation reactions, thereby offering an innovative route towards a sustainable carbon economy.

Overview of the applications and performance improvement strategies of pyro-catalysis.

Two-dimensional transition metal dichalcogenides (2DTMDCs) are promising in quantum computing, flexible electronics, spintronics, sustainable energy systems, and advanced healthcare.

This review summarizes the recent progress of atomically dispersed metal catalysts for oxygen reduction electrocatalysis, including advanced theories and descriptors, active site structure, and advanced characterization techniques.

The utilization of 2D CTFs in advanced electrochemical energy storage systems not only demonstrates the enhancement of the energy and power densities of these devices, but also promotes their cycling stability and rate performance.

We explored the cutting-edge dual-functional CaL-ICCC process, addressing current limitations and proposing future strategies to minimize energy penalties through integrated multiscale approaches spanning materials, reactors, and systems.

We review the progress on MOF-based separators for LSBs, with a particular focus on the relationship between the MOF structures and their functional roles in polysulfide capture, catalytic conversion, and uniform Li⁺ ion flux regulation.

This review highlights that screen-printed gas sensors are cost-effective and scalable, ideal for environmental, industrial, and healthcare applications.

This review focuses on the transformative role of the carbon-based covalent bridging bonds in the field of sodium-ion batteries, providing valuable insights for advancing the next-generation high-performance sodium-ion batteries.

The construction of multilayer electrolytes can improve the electrode interface and enhance the performance of solid-state batteries.

This review focuses on pore engineering (intrinsic pore size, extrinsic porosity, and pore environment) in porous organic cages and summarizes the roles of pore engineering in various fields.

This review highlights recent advances in Ir-based electrocatalysts based on different design strategies. This review will guide future research in the development of high-performance Ir-based HOR electrocatalysts for AEMFCs.

The utilization of ferroelectrics offers an additional lever to surpass the performance limits of traditional photoelectrodes. In this review, design strategies for ferroelectric photoelectrodes from materials to PEC system design are assessed.

This review examines the integration of artificial intelligence with nanogenerators to develop self-powered, adaptive systems for applications in robotics, wearables, and environmental monitoring.

σ–π synergy and spatial confinement in Cu₁–C₂N motifs optimize the reactivity–stability balance for CO electrocatalysis over conventional Cu–N_x sites.

An effective side-chain halogenation strategy realizes high-performance OSCs with efficiency over 20%.

Nitrogen doping in flash graphene modulates interfacial interactions to enable polymer composites with enhanced properties.

This work shows that reconstructing a Gd³⁺-enriched Helmholtz plane enhances interfacial stability, improves Zn anode reversibility, and boosts capacity and cycling stability in zinc–bromine flow batteries.

A polarization-sensitive photodetector based on 1D vdW Nb₂Pd_1−xSe₅ is reported. Image convolutional processing and proof-of-concept multiplexing optical communications and polarization imaging are demonstrated based on the devices.

Disk-like CuS nanoparticles facilitate the photocatalytic conversion of carbonate-rich waste marble-dust to acetic acid under monochromatic green light, offering a green route for carbon upcycling and waste utilization.

Nickel-mediated interfacial design in Mo₂C/Ni/Fe₃O₄ ternary heterostructures establishes decoupled hydrogen/oxygen-containing intermediate spillover pathways via interfacial Ni–C–Mo and Ni–O–Fe interactions and moderation.

A novel 2PACz/MA composite HTL strategy improves the efficiency and stability of OSCs by optimizing interface quality.

A weakly solvated electrolyte strategy for high-performance fluoride-ion batteries at room temperature.

This work systematically investigates the influence of the sp/sp² hybrid carbon ratio on the NRR catalytic performance of Ti@GY/Gr heterojunctions and explores the underlying mechanisms and relevant descriptor relationships.

Structured macro-droplets, stabilized by self-assembled and jammed hemispherical Janus particles at water–oil interfaces, enable scalable fabrication of multi-functional granular materials, e.g., magnetic/fluorescent capsules.

An encapsulated graphene oxide/silk protein aerogel fiber made by coaxial spinning is reported to exhibit ultra-high mechanical properties. The aerogel fiber showed efficient performance in thermal management applications.

DFT reveals oxygen vacancies on SnO₂ stabilize polarons, driving efficient O₂ activation and CO oxidation. These findings enable advanced SnO₂-based sensor design, leveraging defect engineering to boost catalytic and sensing performance.

A stepwise crosslinking-activation method is proposed to prepare coal-based hard carbons with enhanced capacity and high initial coulombic efficiency.

Incorporating Me-4PACz into low-donor-content blends enables self-assembled hole transport pathways and reduced trap states, simultaneously achieving AVT (37.53%) and PCE (10.70%) in semi-transparent organic photovoltaics with an LUE of 4.01%.

A design strategy to achieve high energy storage performance via dual engineering of dynamic nanodomains and defect regulation.

This study found that the addition of Fe could promote the formation of MnO, and this change significantly enhanced the redox ability of the catalyst.

Cost-effective L-threonine additive in zinc metal batteries enables dendrite-free Zn deposition by modifying Zn²⁺ solvation structure, breaking hydrogen-bond networks, and forming protective adsorption layers, thereby improving cycling stability.

The excellent weak ultraviolet light detection capability of PEC UV PDs based on ZnIn-LDH NSAs was demonstrated for the first time, including a high responsivity of 182.41 mA W⁻¹ under weak 254 nm light and an ultrahigh rejection ratio of 7027.03.

Ultrathin, hydroxyl-functionalized NiO_x interlayers prepared via low-temperature, watermediated atomic layer deposition significantly enhance self-assemble monolayer adsorption, and enable efficient perovskite/silicon tandem solar cells.

The oxygen vacancies in Cu@CeO₂-OVs significantly increase the interfacial electron density, promote electron transfer and intermediate stability, thereby reducing the C–C coupling energy barrier and achieving highly selective C₂H₄ generation.

A hydrophilic fabric was prepared via electrospinning for interface solar steam generation, with increased water content achieved by optimizing its thickness, ultimately resulting in an evaporation rate of 4.13 kg m⁻² h⁻¹.

Bowl-like B, N co-doped carbon anchoring ultrafine Li₃VO₄ nanocrystals were fabricated via in situ molecular cross-linking assisted spray drying route, improving the electrochemical lithium-ion storage kinetics and the power density of Li₃VO₄.

Solar desalination technology has garnered considerable attention due to its eco-friendliness, sustainability, and cost-efficiency; however, its practical application is impeded by the drawback of low water yield.

Oxygen-vacancy-rich NiFe-MOF/MXene cathode achieves high energy and power in hybrid supercapacitors.

The VN_xO_y@C hybrid nanowires with abundant oxygen-defects and carbon coating can effectively facilitate internal electron and ion transport, thus greatly augmenting the electrochemical reaction kinetics during Zn²⁺ storage.

Nano-Cu composite-driven multiphase microstructure engineering via modulated interfacial potential barriers, enhanced short-range order, lattice plainification, and defect engineering achieves a near 14-fold ZT enhancement over pristine BiSbSe₃.

π-Conjugated N-heterocyclic quinones, particularly DNQ-PTO, demonstrated exceptional electrochemical performance due to their extended π-conjugation and dispersed chelation groups, providing key design principles for organic electrodes.

Efficient amine grafting achieved through the restructuring of a short-mesochannel composite material produces a functionalized adsorbent with high CO₂ adsorption capacity and kinetics.

Atomic scale transmission electron microscopy on the degradation products at the electrode interface of a solid oxide fuel cell that operated for nearly 10 years.

A theoretical study of the giant magnetocaloric effect in BiCu₃Cr₄O₁₂, revealing how lattice, electronic, and magnetic contributions combine under strong charge–spin–lattice coupling.