Facile Synthesis of High Areal Density and Stable Pt Single-Atom Electrocatalysts by Arc Discharge Atomization and CoNi Trapping.

Pt-group metal single-atom catalysts (SACs) with a large single-atom areal density are highly desirable for efficient electrocatalysis but remain challenging to synthesize. Herein, a facile vacuum direct current arc discharge (DCAD) strategy is reported for the rapid and scalable synthesis of Pt SACs with an unprecedented areal density of 10.6 atoms nm (3.

Metabolic Segregation and Functional Gene Clusters in Anaerobic Digestion Consortia.

A combined enrichment experiment and genome-centric meta-omics analysis demonstrated that metabolic specificity, rather than flexibility, governs the anaerobic digestion (AD) ecosystem. This study provides new insights into interspecies electron transfer in the AD process, highlighting a segregation in the metabolism of H and formate. Our findings show that H acts as the primary electron sink for recycling redox cofactors, including NAD and oxidised ferredoxin (Fd), during primary fermentation, while formate is the dominant electron carrier in secondary fermentation, especially under conditions with elevated H concentrations.

Functional Carbon from Nature: Biomass-Derived Carbon Materials and the Recent Progress of Their Applications.

Biomass is considered as a promising source to fabricate functional carbon materials for its sustainability, low cost, and high carbon content. Biomass-derived-carbon materials (BCMs) have been a thriving research field. Novel structures, diverse synthesis methods, and versatile applications of BCMs have been reported.