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Identifying the Bifunctional Mechanism in Alkaline Water Electrolysis by Lewis Pairs at the Single-Atom Scale.
J Am Chem Soc
January 2025
Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.
The bifunctional mechanism, involving multiactive compositions to simultaneously dissociate water molecules and optimize intermediate adsorption, has been widely used in the design of catalysts to boost water electrolysis for sustainable hydrogen energy production but remains debatable due to difficulties in accurately identifying the reaction process. Here, we proposed the concept of well-defined Lewis pairs in single-atom catalysts, with a unique acid-base nature, to comprehensively understand the exact role of multiactive compositions in an alkaline hydrogen evolution reaction. By facilely adjusting active moieties, the induced synergistic effect between Lewis pairs (M-P/S/Cr pairs, M = Ru, Ir, Pt) can significantly facilitate the cleavage of the H-OH bond and accelerate the removal of intermediates, thereby switching the rate-determining step from the Volmer step to the Heyrovsky step.
View Article and Find Full Text PDFPostgraduate medical education in obstetrics and gynecology in Switzerland in comparison to Germany and Austria: the results of an international survey.
Arch Gynecol Obstet
January 2025
Frauenklinik Kantonsspital St. Gallen, St. Gallen, Switzerland.
Background: There is frequent academic exchange between Switzerland, Germany and Austria, facilitated by the common language. Additionally, the postgraduate training curricula in obstetrics and gynecology show some similarities. We aimed to compare self-perceived level of ability, availability of simulation training and teaching and feedback culture among residents in obstetrics and gynecology in Switzerland, Germany, and Austria.
View Article and Find Full Text PDFOptimum Nitrogen and Phosphorus Combination Improved Yield and Nutrient Use Efficiency of Sorghum in Saline Soil.
Plants (Basel)
January 2025
Faculty of Agriculture, University of Khartoum, Khartoum 11115, Sudan.
Two-year experiments were conducted to assess the responses of yield and nutrient use efficiency of sorghum to nitrogen and phosphorus under saline soils. Three nitrogen rates (0, 180, and 360 N kg ha) and three phosphorus rates (0, 60, and 120 PO kg ha) were used in this study. Our results showed that nitrogen and phosphorus supply increased SPAD (leaf greenness, 5.
View Article and Find Full Text PDFTranscriptome sequencing reveals jasmonate playing a key role in ALA-induced osmotic stress tolerance in strawberry.
BMC Plant Biol
January 2025
College of Horticulture, Nanjing Agricultural University, Nanjing, 211800, China.
Background: Strawberry (Fragaria × annanasa Duch.) is an important economic fruit worldwide, whose growth and development are often hindered by water deficiency. 5-Aminolevulinic acid (ALA), a natural plant growth regulator, has been suggested to mitigate the osmotic damages by promoting root water absorption, osmotic adjustment, photosynthetic capacity, and antioxidant improvement.
View Article and Find Full Text PDFGovernance of Indigenous data in open earth systems science.
Nat Commun
January 2025
Lands of the O'odham and Yaqui peoples, Native Nations Institute, Udall Center for Studies in Public Policy, University of Arizona, Tucson, AZ, USA.
In the age of big data and open science, what processes are needed to follow open science protocols while upholding Indigenous Peoples' rights? The Earth Data Relations Working Group (EDRWG), convened to address this question and envision a research landscape that acknowledges the legacy of extractive practices and embraces new norms across Earth science institutions and open science research. Using the National Ecological Observatory Network (NEON) as an example, the EDRWG recommends actions, applicable across all phases of the data lifecycle, that recognize the sovereign rights of Indigenous Peoples and support better research across all Earth Sciences.
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