Themed collection Chemistry at the Forefront of the Sustainable Energy Transition

Strategies for electrolyte modification in aqueous zinc-ion batteries: an antisolvent approach
This feature article provides a fundamental and mechanistic view of the profound alteration of solvation structure in aqueous electrolytes by an antisolvent strategy to improve the electrochemical performances of aqueous zinc ion batteries.
Chem. Commun., 2025, Advance Article
https://doi.org/10.1039/D5CC01155H
Engineering strategies in bio-photoelectrochemical cells for sustainable energy and environmental applications
Biophotoelectrochemical cells: configurations, components, and their potential products.
Chem. Commun., 2025,61, 8790-8802
https://doi.org/10.1039/D5CC01300C
Photo-excited electrochemical surface-enhanced Raman spectroscopy: In situ/Operando insights into photoelectrocatalytic interfaces
Chem. Commun., 2025, Accepted Manuscript
https://doi.org/10.1039/D5CC01605C
Recent Advancements of Bismuth Titanate Photocatalysis
Chem. Commun., 2025, Accepted Manuscript
https://doi.org/10.1039/D5CC00928F
Covalent organic framework membranes for rechargeable electrochemical energy storage devices: chemistry, fabrication, and future opportunities
COFs with ordered pores and tunable chemistry enable ion selectivity and stability. This review summarizes their synthesis, structure, and applications in energy storage systems.
Chem. Commun., 2025, Advance Article
https://doi.org/10.1039/D5CC01414J
Progress in catalysts for hydrogen storage/release in MBT/DBT based LOHCs: a review
Liquid organic hydrogen carriers (LOHCs) technology is based on the inverse process of storing hydrogen in unsaturated organic liquids by complete hydrogenation reactions and releasing hydrogen by corresponding dehydrogenation reactions.
Chem. Commun., 2025,61, 8619-8631
https://doi.org/10.1039/D5CC01352F
Advances in integrated photo–thermal–electric energy conversion
This review provides a comprehensive understanding of photo–thermal–electric energy conversion based on diverse energy conversion systems, and potential strategies are proposed to optimize these systems and enhance its cross-system applications.
Chem. Commun., 2025, Advance Article
https://doi.org/10.1039/D5CC02558C
Catalytic asymmetric transformation of platform chemicals derived from lignocellulosic biomass
This review summarizes recent advances in the catalytic asymmetric transformation of three key biomass-derived platform chemicals and their applications in the total synthesis of natural products.
Chem. Commun., 2025, Advance Article
https://doi.org/10.1039/D5CC02337H
Edible batteries for biomedical innovation: advances, challenges, and future perspectives
Edible batteries integrate exceptional energy efficiency with a safe energy supply, advancing the intersection of sustainable energy and biomedical engineering.
Chem. Commun., 2025,61, 8294-8313
https://doi.org/10.1039/D5CC01385B

Molecular catalyst and co-catalyst systems based on transition metal complexes for the electrochemical oxidation of alcohols
Selected molecular catalyst systems for electrochemical alcohol oxidation are highlighted, including co-catalyst systems with redox mediators. Structural and activity trends are examined, with a focus on future catalyst system development principles.
Chem. Commun., 2025,61, 7710-7723
https://doi.org/10.1039/D5CC01497B
Biomass-derived semiconductors for renewable energy technologies
This review examines the potential of biomass-derived semiconductor materials in renewable energy technologies, highlighting key synthesis strategies from biomass precursors, as well as their properties and applications.
Chem. Commun., 2025,61, 7356-7367
https://doi.org/10.1039/D5CC01456E
Engineering space dimension and surface chemistry of MXene-based nanocomposite photocatalysts for sustainable environmental applications
This review highlights on engineering space dimension and surface chemistry of MXene-based nanocomposite photocatalysts for sustainable environmental application.
Chem. Commun., 2025,61, 7158-7177
https://doi.org/10.1039/D5CC00587F

Spin-controlled electrocatalysis: an out-of-the-box strategy for the advancement of electrochemical water splitting
Spin-polarized catalysts have garnered significant interest in electrocatalysis, namely in the electrocatalytic oxidation of water, which has very sluggish kinetics due to its high overpotential.
Chem. Commun., 2025,61, 6226-6245
https://doi.org/10.1039/D5CC01305D

Precision design of covalent organic frameworks for cathode applications
This review article discusses the limitations and potential of covalent organic frameworks (COFs) for cathodes applications and introduces key molecular and structural engineering strategies to enhance the performance of COF cathodes in batteries.
Chem. Commun., 2025,61, 5842-5856
https://doi.org/10.1039/D5CC01023C
Advanced electrolyte strategies for dendrite-free aqueous Zn–metal batteries
Aqueous Zn–metal batteries have attracted wide attention due to the abundant Zn reserves and the safety and non-toxicity of aqueous electrolytes, and have become a research hotspot in the field of electrochemical energy.
Chem. Commun., 2025,61, 5857-5870
https://doi.org/10.1039/D5CC00874C
Presodiation technology: progress, strategy and prospects of sacrificial cathode additives in sodium-based energy storage systems
The sacrificial cathode additive (SCA) method holds great promise for industrial application. This review explores recent progress in SCA presodiation technology, with a focus on optimizing strategies to develop near-ideal SCAs.
Chem. Commun., 2025,61, 5386-5394
https://doi.org/10.1039/D5CC00738K

Polyoxometalates for the catalytic reduction of nitrogen oxide and its derivatives: from novel structures to functional applications
In-depth understanding of the optimization of the catalytic reduction of nitrogen oxide and its derivatives using a structure regulation strategy of polyoxometalates.
Chem. Commun., 2025,61, 4881-4896
https://doi.org/10.1039/D5CC00632E
Chlorine-mediated methane activation: an efficient photocatalytic pathway to valuable chemicals
This Highlight presents an emerging strategy for methane photocatalytic oxidation using chlorine species, emphasizing their advantages and outlining future challenges.
Chem. Commun., 2025,61, 3934-3945
https://doi.org/10.1039/D4CC06303A
Progress and perspectives on electrocatalysis in room-temperature Na–S batteries
Room-temperature sodium–sulfur (RT Na–S) batteries can allow an ultrahigh specific capacity and a high energy density but unfortunately suffer from a lot of intractable challenges from sulfur cathodes.
Chem. Commun., 2025,61, 2156-2172
https://doi.org/10.1039/D4CC06120A

Dye-Sensitized Nanoparticles for Efficient Solar Hydrogen Generation
Chem. Commun., 2025, Accepted Manuscript
https://doi.org/10.1039/D5CC01971K

Monolayer C60 networks: A first-principles perspective
Chem. Commun., 2025, Accepted Manuscript
https://doi.org/10.1039/D5CC02473K

Metal-Nitrogen-Carbon Catalysts for Electrochemical CO₂ Reduction: From Design to Industrial Applications
Chem. Commun., 2025, Accepted Manuscript
https://doi.org/10.1039/D5CC02297E
Preparation methods and challenges of carbon materials from coal tar pitch for energy storage
This review aims to provide insights into the relationships among the preparation methods, structural characteristics, and properties of carbon materials derived from coal tar pitch.
Chem. Commun., 2025, Advance Article
https://doi.org/10.1039/D5CC01803J
Vacancy engineering of metal–organic framework derivatives for supercapacitors and electrochemical water splitting
This minireview highlights the recent advances in the design and preparation of vacancy-containing MOF derivatives for supercapacitors and electrocatalytic water splitting.
Chem. Commun., 2025,61, 8830-8842
https://doi.org/10.1039/D5CC01512J
Spontaneous heterointerface modulators for perovskite solar cells
Spontaneous heterointerface modulators, including alkyl-primary-ammonium-based ionic-liquids (RA–TFSIs) passivating perovskites during hole-transport material (HTM) deposition, for perovskite solar cells are highlighted.
Chem. Commun., 2025, Advance Article
https://doi.org/10.1039/D5CC02412A
High-Entropy Strategies for Designing Advanced Solid-State Electrolytes: A Comprehensive Review
Chem. Commun., 2025, Accepted Manuscript
https://doi.org/10.1039/D5CC03141A
Quantum electroanalysis in drug discovery
Quantum electroanalysis involves low dimension scale structures (LDSSs) for achieving attomolar sensitivity for drug discovery purposes.
Chem. Commun., 2025,61, 8632-8642
https://doi.org/10.1039/D5CC01925G
Proton exchange membrane fuel cells: recent developments and future perspectives
Proton exchange membrane fuel cells (PEMFCs) have demonstrated significant potential as environmentally friendly energy alternatives.
Chem. Commun., 2025, Advance Article
https://doi.org/10.1039/D5CC01478F
The paradoxical role of rock-salt phases in high-nickel cathode stabilization: engineering a detrimental structure into a beneficial structure
This review summarizes design principles to advance high-nickel-content cathodes, reframing what was generally considered a failure mechanism into a strategic advantage for lithium-ion battery technologies.
Chem. Commun., 2025, Advance Article
https://doi.org/10.1039/D5CC01386K
Beyond macroscopic performance: nanoscale charge transfer dynamics in energy storage/conversion devices via scanning electrochemical cell microscopy
In the review, nanoscale charge transfer dynamics in energy storage/conversion about interface dynamics and electrochemical reaction mechanism are summarized. And future developments on SECCM combined with machine learning are putting forward.
Chem. Commun., 2025, Advance Article
https://doi.org/10.1039/D5CC01921D
Recent advances in transition metal sulfide-based electrode materials for supercapacitors
The recent progress in synthesis methods and improvement strategies of advanced TMS-based electrodes for supercapacitors is summarized.
Chem. Commun., 2025,61, 8314-8326
https://doi.org/10.1039/D5CC01411E
Fabrication strategies for lead-free bismuth-based perovskite solar cells: a review
The power conversion efficiency of perovskite solar cells has reached 27%, but lead (Pb) toxicity limits their commercialization. To solve this, Pb-free Bi-based alternatives' fabrication strategies are reviewed to advance Bi compound development.
Chem. Commun., 2025, Advance Article
https://doi.org/10.1039/D5CC01441G
Engineering perovskite solar cells for photovoltaic and photoelectrochemical systems: strategies for enhancing efficiency and stability
PSC-assisted PV–EC and PEC systems enable unbiased solar fuel production via water splitting and CO2 reduction. This review highlights recent advances in PSC-driven fuel production, focusing on strategies to improve efficiency and stability.
Chem. Commun., 2025,61, 8137-8156
https://doi.org/10.1039/D5CC01338K
Operando characterization technique innovations in single-atom catalyst-derived electrochemical CO2 conversion
Different operando characterization techniques for the time-dependent screening of SACs under working conditions and the electrochemical CO2RR applications of SAC-derived materials have been reviewed.
Chem. Commun., 2025,61, 8157-8169
https://doi.org/10.1039/D5CC01287B
A perspective on NiCo2O4-based photocatalysts: from fundamentals, modification strategies to applications
A perspective on NiCo2O4-based photocatalysts is presented from fundamentals, modification strategies to applications, which provides comprehensive review and research gaps for boosting the development of heterogenous catalysts based on NiCo2O4.
Chem. Commun., 2025,61, 7960-7982
https://doi.org/10.1039/D5CC01862E
Hematite photoanode for efficient photoelectrochemical water splitting: recent advances and outlook
Promoting hematite by water oxidation reaction on the surface, charge separation and transport in the bulk, and parallel multi-stacked design.
Chem. Commun., 2025,61, 7724-7736
https://doi.org/10.1039/D5CC01630D
Electrocatalytic N–H bond transformations: a zero-carbon paradigm for sustainable energy storage and conversion
Electrocatalytic zero-carbon energy systems based on the N–H bond have achieved a complete cycle of energy storage and conversion, providing guidance for the application of clean energy storage and conversion.
Chem. Commun., 2025,61, 7585-7599
https://doi.org/10.1039/D5CC01213A
Computational approaches to electrolyte design for advanced lithium-ion batteries
Various computational methodologies, encompassing quantum chemistry, molecular dynamics simulations, and high-throughput screening, have been reviewed for their applications in electrolyte design for lithium-ion batteries.
Chem. Commun., 2025,61, 7019-7034
https://doi.org/10.1039/D5CC01310K
Obtaining materials from local sources: surface modification engineering enabled substrates for water splitting
Substrate surface modification engineering is a novel method to prepare electrode and can be called self-derived reaction of substrates. Pristine substrates, such as foil, mesh, and foam, can react directly with modifying agents to obtain electrode.
Chem. Commun., 2025,61, 6882-6892
https://doi.org/10.1039/D5CC01311A
Protocols for degradation assessment and stability enhancement in perovskite solar cells
Protocols for long-term stability of perovskite solar cells.
Chem. Commun., 2025,61, 6722-6738
https://doi.org/10.1039/D5CC01404B

Zero-discharge, self-sustained 3D-printed microbial electrolysis cell for biohydrogen production: a review
We highlight the use of 3D printing in creating a stacked MFC–ECC–MEC system in conjunction with a photobioreactor (PBR) to produce significant quantities of H2.
Chem. Commun., 2025,61, 5410-5421
https://doi.org/10.1039/D5CC00103J
Interfacial modification in organic solar cells
This review summarizes the mechanism of dipole moments to promote interfacial energy level alignment. Typical organic interlayer materials are compared to conclude the structure–property relationship on directing molecular design.
Chem. Commun., 2025,61, 5253-5263
https://doi.org/10.1039/D4CC06507G

Two-step thermochemical cycle for solar fuel production from H2O and CO2: technological challenges and potential solutions
A two-step thermochemical cycle for solar fuel production from H2O or/and CO2.
Chem. Commun., 2025,61, 4897-4903
https://doi.org/10.1039/D5CC00262A
Interfacial chemical bond engineering on Te semiconductor to weaken carrier-phonon coupling for boosting thermoelectric conversion performance
Chem. Commun., 2025, Accepted Manuscript
https://doi.org/10.1039/D5CC02836A
Balancing Electronic Structure and Surface Reconstruction of Cu-based Nanostructure for Iodide Oxidation Reaction
Chem. Commun., 2025, Accepted Manuscript
https://doi.org/10.1039/D5CC02121A

Robust engineered catalyst for the conversion of brown grease to renewable diesel via decarboxylation/decarbonylation
Chem. Commun., 2025, Accepted Manuscript
https://doi.org/10.1039/D5CC01451D

Enabling Ca plating and stripping by electrolyte manipulation in low-volatility solvents for Ca metal batteries
The addition of CaBr2 enhances Ca plating/stripping efficiency by weakening Ca2+ solvation and promoting the formation of a robust interfacial layer on the Ca metal surface.
Chem. Commun., 2025,61, 8887-8890
https://doi.org/10.1039/D5CC01242B

Tailoring the properties of guaiacol-derived high sulfur-content materials through post-polymerization modification with dithiols
Post-polymerization modification with rigid aryl dithiols enables systematic control over the thermal and mechanical properties of guaiacol-derived high sulfur-content materials.
Chem. Commun., 2025,61, 8883-8886
https://doi.org/10.1039/D5CC01306B
Catalytic imidazolysis of PET plastic waste using self-assembled NbOx nanorods
A robust self-assembled NbOx nanorod-catalyst with unique morphology and strong acid sites is effective for upcycling PET waste with catalytic durability and process scalability, offering promising solutions for the circular plastic industry.
Chem. Commun., 2025,61, 8847-8850
https://doi.org/10.1039/D5CC01819F
Nanocubic mixed-halide perovskite superlattices for bright red light-emitting diodes
LEDs based on nanocubic CsPb(IxBr1−x)3 achieved a maximum EQE of 10.75%, the highest reported for perovskite superlattice bright red LEDs.
Chem. Commun., 2025,61, 8859-8862
https://doi.org/10.1039/D5CC02187A
A covalent organic framework with asymmetric coordination for the oxygen reduction reaction: a computational study
A covalent organic framework (COF) with an asymmetric CoN2O2 moiety is identified to exhibit remarkable oxygen reduction reaction (ORR) activity based on constant-potential first-principles calculations and microkinetic modelling.
Chem. Commun., 2025,61, 8923-8926
https://doi.org/10.1039/D5CC02119G
A mixed metallic and mixed valence MoV4VIV2VIII2 complex as an electron transfer photo-catalyst for the hydrogen evolution reaction
Ligand-directed structure modulation is observed during the synthesis of mixed-metallic vanado-molybdate complexes functionalized with pyridinyl diphosphonate ligand(s).
Chem. Commun., 2025,61, 8919-8922
https://doi.org/10.1039/D5CC00117J
Schottky barrier modulation via calcium hydroxide nanoparticles on g-C3N4/Ti3C2 for overall photocatalytic applications
Chem. Commun., 2025, Accepted Manuscript
https://doi.org/10.1039/D5CC01620G
Sn4P3-decorated 2D N-doped carbon nanosheets as efficient polysulfide barriers for Li–S batteries
An Sn4P3-decorated nitrogen-doped carbon nanosheet synergistically boosts polysulfide conversion and suppresses diffusion.
Chem. Commun., 2025, Advance Article
https://doi.org/10.1039/D5CC02150B
Comparing electrocatalytic and chemical oxygen reduction reaction by a molecular copper complex
Electrocatalytic and chemical oxygen reduction reactions were investigated using a molecular copper(II) complex, revealing distinct reaction mechanisms but similar 4e−/4H+ product selectivity.
Chem. Commun., 2025, Advance Article
https://doi.org/10.1039/D5CC01491C
Anti-swelling dual-network zwitterionic hydrogels with excellent mechanical properties for flexible supercapacitors and sensors
Chem. Commun., 2025, Accepted Manuscript
https://doi.org/10.1039/D5CC01676B
Tuneable Vacancy-Ordered Halide Perovskites Cs2PdX6 (X = Cl, Br) for Photoelectrochemical Water Splitting
Chem. Commun., 2025, Accepted Manuscript
https://doi.org/10.1039/D5CC01276G
Catalytic NH3 oxidation to N2 by hydrogen atom abstraction using a low-valent molybdenum complex
Fac-[(CO)3Mo(PtBu2NPh2)(NH3)] catalyzed NH3 oxidation to N2 using phenoxyl radicals as H atom acceptors generating up to 88 equiv. N2 per Mo centre.
Chem. Commun., 2025, Advance Article
https://doi.org/10.1039/D5CC02433A
Effect of organic ligands in iron-based metal–organic frameworks on oxygen evolution electrocatalysis: conventional inorganic solids vs. organic–inorganic hybrid materials
Metal–organic frameworks show superior electrocatalytic oxygen evolution activity compared with conventional inorganic metal oxides because organic ligands modify the d-orbitals of active metals.
Chem. Commun., 2025,61, 8675-8678
https://doi.org/10.1039/D5CC00934K
Can reconfiguring the band-edge states regulate excitonic states in two-dimensional superlattice perovskites?
The relationship between density distributions of excitons and energy band alignment is theoretically explored in the two-dimensional superlattice perovskites.
Chem. Commun., 2025,61, 8679-8682
https://doi.org/10.1039/D5CC01351H

Light intensity–directed selective CO2 photoreduction using iron(0)–zirconium dioxide photocatalyst
Using Fe0 photocatalyst, selective hydrocarbon formation was controlled by adjusting irradiated light intensity: CO, CH4, and subsequently C2H6 and C3H8.
Chem. Commun., 2025,61, 8671-8674
https://doi.org/10.1039/D5CC01147G

Insight into the effects of pulsed CO2 electrolysis in a zero-gap electrolyzer
Pulsed operation for CO2 electrolysis in a membrane electrode assembly at industrially relevant current densities improves multi-carbon product formation with the use of anion exchange ionomer.
Chem. Commun., 2025, Advance Article
https://doi.org/10.1039/D5CC01463H
Tailoring the alkyl chain length of linear esters in moderately concentrated electrolyte for a high-performance graphite anode in K-ion batteries
This work revealed that an increase in the alkyl chain length of linear esters leads to a promoted K+ desolvation kinetics, which may provide a guideline to design suitable electrolytes for realizing practical K-ion batteries.
Chem. Commun., 2025, Advance Article
https://doi.org/10.1039/D5CC01928A
Biomimetic fluoride-coated zinc anodes: pediatric dentistry inspires stable zinc batteries
Inspired by dental fluoride varnish, a biomimetic nano-fluoride coating shields Zn anodes from corrosive solutions, boosting aqueous Zn-ion batteries' efficiency and lifespan.
Chem. Commun., 2025, Advance Article
https://doi.org/10.1039/D5CC02079D
Design and Integration of Glass-fiber-cloth Networks in PEO-LLZTO Composite: A Multifunctional Approach for Electrolyte Engineering
Chem. Commun., 2025, Accepted Manuscript
https://doi.org/10.1039/D5CC01390A
Acid-free photocatalytic recovery of valuable metals from spent ternary lithium battery cathode materials using acetonitrile and dichloromethane
Chem. Commun., 2025, Accepted Manuscript
https://doi.org/10.1039/D5CC01450F
TiO₂/Fe Heterostructure Enables High-Efficiency Electrochemical Ammonia Synthesis from Nitrate
Chem. Commun., 2025, Accepted Manuscript
https://doi.org/10.1039/D5CC01835H
Regulating p-type conjugation in bipolar polyimide covalent organic frameworks for high-performance zinc dual-ion batteries
Bipolar polyimide covalent organic frameworks were developed as electrodes in dual-ion batteries with a wide voltage window, delivering very high energy density.
Chem. Commun., 2025, Advance Article
https://doi.org/10.1039/D5CC01460C
A cluster-scale CuFe heteroatom ensemble with a multisite interface reinforces electronic interaction to boost ambient ammonia electrosynthesis
A cluster-scale CuFe heteroatom ensemble with a multisite interface is synthesized to reinforce electronic interaction and thereby boost electrosynthesis of ammonia from nitrate.
Chem. Commun., 2025,61, 8524-8527
https://doi.org/10.1039/D5CC01452B
Unveiling the potential of tailored β-substituted iron-porphyrins for highly efficient oxygen reduction reactions (ORR)
Three β-functionalized FeIII porphyrins with electron-donating and electron-withdrawing groups were synthesized and utilized as electrocatalysts for the ORR. Fe(III)ClTPPPh4 showed superior activity due to steric distortion and smaller HOMO–LUMO gap.
Chem. Commun., 2025,61, 8512-8515
https://doi.org/10.1039/D5CC01286D
About this collection
For 60 years, ChemComm has published urgent, highly significant new findings of interest to a general chemistry readership. By showcasing the latest cutting-edge developments in this area, this special collection aims to drive innovation in creating a sustainable future – from reducing greenhouse gas emissions, driving renewable energy innovation and developing solutions to meet our energy needs. This collection includes contributions on new developments in:
- Solar cells and photovoltaics
- Solar fuel production and artificial photosynthesis
- Batteries and energy storage
- Fuel cells and hydrogen technologies
- Biomass conversion
- Catalysis for energy applications
- Emerging technologies, including proof-of-concept studies