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Undoped ruthenium oxide as a stable catalyst for the acidic oxygen evolution reaction.
Nat Commun
January 2025
WA School of Mines: Minerals, Energy and Chemical Engineering (WASM-MECE), Curtin University, Perth, WA, 6102, Australia.
Reducing green hydrogen production cost is critical for its widespread application. Proton-exchange-membrane water electrolyzers are among the most promising technologies, and significant research has been focused on developing more active, durable, and cost-effective catalysts to replace expensive iridium in the anode. Ruthenium oxide is a leading alternative while its stability is inadequate.
View Article and Find Full Text PDFDual controls of vapour pressure deficit and soil moisture on photosynthesis in a restored temperate bog.
Sci Total Environ
January 2025
Institute of Ecology and Earth Sciences, University of Tartu, Vanemuise Street. 46, 51003 Tartu, Estonia. Electronic address:
Despite only covering ~3 % of the land mass, peatlands store more carbon (C) per unit area than any other ecosystem. This is due to the discrepancy between C fixed by the plants (Gross primary productivity (GPP)) and decomposition. However, this C is vulnerable to frequent, severe droughts and changes in the peatland microclimate.
View Article and Find Full Text PDFNanofibrous Ru/SnO heterostructure as robust bifunctional electrocatalyst for high-performance overall hydrazine splitting and Zn-hydrazine battery.
J Colloid Interface Sci
January 2025
Alan G. MacDiarmid Institute, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, PR China. Electronic address:
Water electrolysis represents a green and efficient strategy for hydrogen (H) production. However, the four-electron transfer process involved in its anodic oxygen evolution reaction (OER) half-reaction restricts the H generation rate. Employing hydrazine oxidation reaction (HzOR) as a substitute for OER in H generation can dramatically reduce energy consumption.
View Article and Find Full Text PDFProkaryotic Diversity and Community Distribution in the Complex Hydrogeological System of the Añana Continental Saltern.
Microb Ecol
January 2025
MikroIker Research Group, Immunology, Microbiology and Parasitology Department, Faculty of Pharmacy, University of the Basque Country UPV/EHU, Paseo de La Universidad 7, 01006, Vitoria-Gasteiz, Spain.
The Añana Salt Valley (northern Spain) is a continental saltern consisting of a series of natural springs that have been used for salt production for at least 7000 years. This habitat has been relatively understudied; therefore, prokaryotic diversity was investigated through Illumina-based 16S rRNA gene sequencing to determine if the waters within the valley exhibit distinctive microbiological characteristics. Two main types of water were found in the valley: salty (approximately 200 g/L salinity) from the diapiric structure and brackish (≤ 20 g/L salinity) from shallow streams.
View Article and Find Full Text PDFDrought in a warmer, CO-rich climate restricts grassland water use and soil water mixing.
Science
January 2025
Department of Ecology, Universität Innsbruck, Sternwartestraße 15, Innsbruck, Austria.
Soil water sustains terrestrial life, yet its fate is uncertain under a changing climate. We conducted a deuterium labeling experiment to determine whether elevated atmospheric carbon dioxide (CO), warming, and drought impact soil water storage and transport in a temperate grassland. Elevated CO created a wetter rootzone compared with ambient conditions, whereas warming decreased soil moisture.
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