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Delamination and cracking hinder the durability of air electrodes in ceramic cells. Here, the authors introduce oxide wedging at particle interfaces to enhance mechanical robustness and thermal compatibility, significantly improving electrode longevity.

Reversible protonic ceramic cells face electrode interface degradation challenges. This study introduces an atomic trapping strategy to restructure heterointerfaces, improving power output and long-term stability while reducing precious metal usage.

Catalyst screening is an important process but it’s usually time-consuming and labor intensive. Here the authors report the prediction of oxygen vacancy for perovskites using machine learning techniques to develop suitable oxygen electrocatalysts for solid oxide fuel cells at reduced temperatures.

High-temperature fuel cells often face bulk cracking due to insufficient fracture strength and stiffness. Here, the authors show that chemical hydration enhances cathode mechanical properties, significantly improving thermal cycling stability and overall performance in proton ceramic fuel cells.

Surface reconstruction caused by adsorbate evolution mechanism leads to poor oxygen evolution reaction (OER) performance. Here, the authors introduce a hydroxy-silicon proton acceptor as OER catalyst which greatly accelerates the deprotonation process in OER and prolong the cycle life of zinc-ion batteries.

Polynary perovskite oxides are promising air electrodes for rSOCs, with configuration entropy (S_config) often linked to reactivity. However, high S_config alone does not strongly correlate with performance. This study develops a model identifying key descriptors to guide high-activity oxide discovery.

Ruthenium oxide is a promising electrocatalyst in PEM water electrolyzers, with significant research efforts focused on doping to enhance its stability. Here, the authors report that ruthenium oxide can achieve stability without doping by inhibiting bulk-phase proton participation.

A study reports a combination of processing, optimization and low-damage deposition methods for the production of silicon heterojunction solar cells exhibiting flexibility and high performance.

The conductivity of protonic ceramic electrolytes for fuel cells is unsatisfactory due to poor sintering. Here, the authors report the adverse effects of dynamic Y3+ displacement on high-temperature membrane sintering and propose a new strategy for pre-doping Y into A-site to inhibit its further displacement.

While water splitting provides a renewable means to store energy, the sluggish O₂ evolution half-reaction limits applications. Here, authors examine a silicon-incorporated strontium cobaltite perovskite and correlate lattice oxygen participation in O₂ evolution to the oxygen ion diffusivity.

Coupling high ionic and low electronic conductivity in the electrolyte of low-temperature solid-oxide fuel cells remains a challenge. Now, the electronic conductivity of a perovskite electrolyte, which has high proton conductivity, is shown to be heavily suppressed when exposed to hydrogen, leading to high fuel cell performance.

Efficient air electrodes drive reversible proton ceramic electrochemical cells, accelerating renewable energy conversion and storage. Here, the authors propose a highly active hybrid air electrode that effectively controls phase content, enhancing electrochemical activity and stability through synergistic effects.

While renewable H₂ production offers a promising route for clean energy production, there is an urgent need to improve catalyst performances. Here, authors design a Pt-containing complex oxide that utilizes atomic-scale hydrogen spillover to promote H₂ evolution electrocatalysis in acidic media.

Sluggish activity of cathode materials impedes operation of solid oxide fuel cells at low temperatures. Here, the authors report a niobium and tantalum co-doped perovskite cathode exhibiting high electroactivity below 500 °C, and argue that the dopants improve the cathode performance synergistically.

The successful deployment of protonic ceramic fuel cells requires the discovery of high-performance and low-cost cathode catalysts. Now, theoretical insights guide the rational design of a Ba_0.875Fe_0.875Zr_0.125O_3−δ material that achieves excellent oxygen reduction performance.

An efficient and scalable direct seawater electrolysis method for hydrogen production that addresses the side-reaction and corrosion problems associated with using seawater instead of pure water is demonstrated.

The slow research cycle of material design, characterization and testing has hampered the development of new cathode materials for solid oxide fuel cells. Here the authors develop a machine-learning approach, which makes use of ionic Lewis acid strength as a descriptor, for discovery of improved perovskite oxide cathodes.

Highly active but durable perovskite-based solid oxide fuel cell cathodes are realized using a thermal-expansion offset, achieving full thermo-mechanical compatibility between the cathode and other cell components.

Efficient electrocatalysts are crucial to the electrochemical carbon dioxide reduction. Here, the authors use the fast operando technique to explore a silver-based catalyst with improved catalytic performance benefiting from the suitable defect structures.

Facile and reliable screening of efficient electrocatalysts is important for energy conversion technologies such as water splitting. Here, authors introduce A-site ionic electronegativity as a descriptor to understand the hydrogen-evolution activities of cobalt-based perovskites.

Water may serve as a renewable hydrogen fuel source to replace fossil fuels, although such electrolysis requires highly active catalysts. Here, authors explore Ruddlesden−Popper oxides as hydrogen evolution electrocatalysts that feature an unusual synergistic effect to promote high activity.

Water oxidation catalysis may provide the electrons needed for sustainable fuel production, but catalysts often degrade under working conditions. Here, authors introduce soluble species into perovskites to exert positive ion leaching effects for enhancing perovskite stability and activity.

Efficient electrocatalysts are crucial for the sustainable hydrogen production as an alternative clean fuel. Here, the authors explore a single-phase perovskite oxide as a high-performance hydrogen evolution electrocatalyst via super-exchange induced atomic scale synergistic active sites.

Splitting water into its component elements, oxygen and hydrogen gas, provides a carbon-neutral fuel source, although the availability of cheap, earth-abundant catalysts is lacking. Here, the authors demonstrate antiperovskite-derived materials as high-performance water oxidation electrocatalysts.