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The triple synergy of oxygen, proton, and electron supply is crucial for hydrogen peroxide photosynthesis. Here, the authors report a squaric-acid zwitterionic covalent organic framework that achieves this synergy, boosting hydrogen peroxide yield and enabling solar-driven continuous-flow production.

To make Mars colonization cheaper by reducing the heavy supplies needed from Earth, scientists have created a highly efficient recycling system that turns carbon dioxide and hydrogen into fresh water and rocket fuel (methane), and it works reliably even with the inconsistent solar power available on Mars.

Single-atom catalysts, particularly metal/nitrogen-doped carbons, have become a versatile platform for fine-tuning electronic interactions with reactants and controlling thermodynamic selectivity. Here, the authors show that the catalytic ozonation activity of single-atomic Co–N₄ sites can be electronically modulated by adjusting the density of Co nanoparticles on the carbon matrix.

Robust Cu single-atom catalysts show promise for CO₂ electroreduction but face stability challenges. Here, the authors report a self-healing Cu single-atom catalyst that maintains high performance and stability for CO₂-to-CH₄ conversion at industrial current densities.

The authors report a dual photothermal-electrocatalysis interface which enables efficient ammonia extraction and purification from air and wastewater, thereby advancing sustainable waste-to-fuel conversion.

The synthesis of isoreticular (3,12,24)-connected uru metal–organic frameworks (MOFs) is reported by the assembly of 12-connected cuboctahedral and 24-connected rhombicuboctahedral supermolecular building blocks. The resulting uru-MOF-1 is a promising candidate for low-temperature methane storage.

Silicon-based lithium-ion batteries are attractive because in principle they offer higher specific capacities than conventional graphite. A hierarchical bottom-up approach is now used to prepare lithium-ion anodes with improved reversible capacities and stable electrochemical performance.

High-spin Fe(IV) = O sites efficiently activate methane but are challenging to synthesize. This study develops dual Fe(II) sites on FeS₂, generating high-spin Fe(IV) = O from O₂, achieving superior methane-to-methanol conversion under mild conditions.

The time-consuming and site-limited nature of blood analysis often delays medical interventions. Here, the authors developed a weaved multi-sensing hairband for real-time sweat biomarkers and body temperature monitoring.

A paddle-like self-stirring nanoreactor system with spatially isolated multifunctional components is successfully constructed. The rotation–revolution pattern enhances the internal and reverse dual-dynamic diffusion processes, thus effectively boosting the cascade efficiency.

Conventional entrapped ¹²⁹Xe with low signal intensity limits in vivo applications. Here, the authors developed a MOF-based reporter that enhances signal intensity, achieves femtomolar detection, and enables chemical shift-encoded MRI in rat lungs.

Supported single atoms are promising catalysts for alkane dehydrogenation, although tuning their reactivity via active site modulation remains a challenge. Here the authors introduce an Ir₁–Cu₁ dual-atom catalyst for n-butane dehydrogenation that outperforms the corresponding Ir₁ single-atom system.

The design of covalent organic frameworks featuring high porosity and excellent charge transfer properties is crucial for widespread applications. Here, the authors report covalent organic frameworks with tunable dimensionality allowing to fine-tune their electronic band structure, charge mobility, and porosity.

A subcutaneously injected hydrogel conjugated with antibodies for interleukin-6 substantially reduces the levels of the cytokine during chimaeric antigen receptor T-cell therapy while maintaining its antitumour efficacy.

Breaking the geometric symmetry of metal-N₄ sites and boosting catalytic activity are significant but challenging. Here, using chlorination engineering, authors convert the Zn-N₄ site with low activity and selectivity for the electroreduction of CO₂ into highly active Zn-N₃ site with broken symmetry.

Capturing and separating perfluorinated gases is critical due to their environmental concerns. However, microporous adsorbents show slow mass transfer within micropores limiting their performance in applications. Here, the authors report fluorinated mesoporous covalent organic frameworks for the storage of octafluoropropane and perfluorocyclobutane and separation from other gases mixtures.

Lipase is one of the most important industrial biocatalysts with wide applications, but its catalytic efficiency is often hindered by a closed lid conformation. Here, the authors present an aggregation-induced conformation locking strategy that enables the facile synthesis of highly activated lipase hybrid biocatalysts.

The industrial viability of alcohol electrooxidation is hindered due to low reaction rates. Here, the authors report a synergistic approach that integrating an active electrode (Ni_0.67V_0.33-layered double hydroxide) and aminoxyl radical to enhance the oxidation of alcohols at high current densities.

Earth-abundant TiO₂ is a promising negative electrode material for low-cost sodium-ion batteries. Here, authors show that ordered rocksalt NaTiO₂ nanograins are in situ formed by electrochemically cycling with Na⁺ ions in anatase TiO₂, which determines the pseudocapacitive high-rate capability.

Exfoliation of g-C₃N₄ breaks the molecular chains, causing sluggish carrier kinetics and moderate degradation activity. Here, authors address these issues by developing an ultrathin porous g-C₃N₄ with intact molecular chains via shear repair strategy, enhancing the activity of PMS-assisted water purification.

The development of three-dimensional (3D) covalent organic frameworks (COFs) with novel topologies is of both fundamental and practical interest but the construction of highly crystalline 3D COF remains challenging. Here, the authors report highly crystalline 3D COFs with pto and mhq-z topologies by rationally selecting rectangular-planar and trigonal-planar building blocks with appropriate conformational strains.

This study reports oxygen functional group-coordinated p-block metal catalysts that optimize the adsorption strength of key H₂O₂ intermediates for the oxygen reduction reaction. An electrolyser based on electron-deficient Sn active sites achieves an energy efficiency of 43% for the electrosynthesis of H₂O₂ and is stable for over 200 h.

Redox-active MOFs have demonstrated advantages in the field of electrochromism but controlling and modulating the electrochromic behaviors in specific MOFs remains a challenge. Here, the authors design a redox-active Zr-MOF with coordination unsaturated pockets which exhibits reversible electrochromic behavior.

Single-atom catalysts for sodium-sulfur batteries typically use d-block transition metal centers to accelerate polysulfide conversion, while s-block metals are generally considered inactive. Here, authors design a calcium-based single-atom catalyst for sodium-sulfur batteries.