Porous Support-Anchored High-Density Single-Site Catalysts for Water Electrolysis.

Single-site catalysts (SSCs) have attracted increasing attention due to their ultrahigh atomic utilization and intrinsic catalytic activity in water electrolysis. However, the low volumetric density of SSCs on bulk supports limits the overall activity. Coupling porous supports with SSCs (PS-SSCs) can synergistically achieve exponential performance improvements.

Fundamental Insights for Practical Electrocatalytic CO Reduction.

ConspectusGlobal energy's continuous reliance on fossil fuels has driven unprecedented CO emission growth, intensifying climate volatility through heightened frequency and severity of extreme weather events. These crises underscore the critical need for accelerating innovation in sustainable energy technologies capable of reconciling two urgent imperatives: ensuring reliable energy access while delivering measurable progress toward global decarbonization commitments. Electrocatalytic CO reduction reaction (CORR) technology implementation could not only help to reduce CO concentrations in the atmosphere but also provide new possibilities for renewable energy storage, thus playing a crucial role in driving the energy transition and achieving carbon neutrality.

Engineering Bifunctional Catalytic Microenvironments for Durable and High-Energy-Density Metal-Air Batteries.

Rechargeable metal-air batteries have gained significant interest due to their high energy density and environmental benignity. However, these batteries face significant challenges, particularly related to the air-breathing electrode, resulting in poor cycle life, low efficiency, and catalyst degradation. Developing a robust bifunctional electrocatalyst remains difficult, as oxygen electrocatalysis involves sluggish kinetics and follows different reaction pathways, often requiring distinct active sites.

Polysaccharides Alleviate Ethanol-Induced Liver Injury by Activating PPAR-α and Inhibiting NLRP-3/Caspase-1-Mediated Pyroptosis.

This Research Aimed to Discuss the Protective Mechanism of Polysaccharides (LBPs) Against Ethanol (EtOH)-caused Hepatocellular Damage. Normal human hepatocytes (L-02 cells) were processed with 100 μg/mL EtOH to simulate liver injury, followed by treatment with LBPs at different concentrations (12, 24, 48 μg/mL) to determine the optimal dose. Cells were divided into the control, EtOH, EtOH+LBP-treated, and EtOH+LBP-treated with siRNA against PPAR-α groups.

Platinum-Ruthenium Dual-Atomic Sites Dispersed in Nanoporous NiSe Enabling Ampere-Level Current Density Hydrogen Production.

Alkaline anion-exchange-membrane water electrolyzers (AEMWEs) using earth-abundant catalysts is a promising approach for the generation of green H. However, the AEMWEs with alkaline electrolytes suffer from poor performance at high current density compared to proton exchange membrane electrolyzers. Here, atomically dispersed Pt-Ru dual sites co-embedded in nanoporous nickel selenides (np/PtRu-NiSe) are developed by a rapid melt-quenching approach to achieve highly-efficient alkaline hydrogen evolution reaction.

Pd Atomic Engineering of Nanoporous Ni/NiO for Efficient Nitrophenol Hydrogenation Reaction.

The catalytic hydrogenation of nitrophenols is widely utilized for both industrial synthesis and environmental protection, thus efficient and cost-effective catalysts are in urgent need. Still, the cost and scarcity of the materials still inhibit their application and the active sites are not well specified, especially in the complex catalysts. Herein, we developed an atomic Pd-doped nanoporous Ni/NiO (Pd@np-Ni/NiO) catalyst via facial dealloying for efficient nitrophenol hydrogenation reaction under mild conditions.

Rapid Melt-Quenching Enables General Synthesis of High-Loading Single-Atom Catalysts with Bicontinuous Nanoporous Structure.

Single-atom catalysts have attracted extensive attention due to their unique atomic structures and extraordinary activities in catalyzing chemical reactions. However, the lack of general and efficient approaches for producing high-density single atoms on suitably tailored supporting matrixes hinders their industrial applications. Here, a rapid melt-quenching strategy with high throughput to synthesize single atoms with high metal-atom loadings of up to 9.