Core-shell nanoparticles of sodium borohydride (NaBH4) coated with various metals have been successfully synthesised. The morphologies varied from spherical to cubic with a range of particle size distributions depending on the metal used. All core-shell structures show hydrogen storage reversibility with faster kinetics for NaBH4@Fe and NaBH4@Ni as compared to NaBH4@Cu.
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http://dx.doi.org/10.1039/c3cc42815j | DOI Listing |
ACS Appl Mater Interfaces
January 2025
Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, School of Chemistry and Materials, Fudan University, Shanghai 200433, China.
For Zn metal batteries, the Zn anode faces several challenges, including Zn dendrites, hydrogen evolution, and corrosion. These issues are closely related to the Zn deposition process at the electrode/electrolyte interface. Herein, we propose interfacial engineering to protect the Zn anode and induce homogeneous deposition using conjugated cyclized polyacrylonitrile (cPAN) polymer nanofibers.
View Article and Find Full Text PDFSmall
January 2025
State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, China.
The scarcity of cost-effective and durable iridium-free anode electrocatalysts for the oxygen evolution reaction (OER) poses a significant challenge to the widespread application of the proton exchange membrane water electrolyzer (PEMWE). To address the electrochemical oxidation and dissolution issues of Ru-based electrocatalysts, an electron-donating modification strategy is developed to stabilize WRuO under harsh oxidative conditions. The optimized catalyst with a low Zirconium doping (Zr, 1 wt.
View Article and Find Full Text PDFSmall
January 2025
National Energy Metal Resources and New Materials Key Laboratory, Engineering Research Center of the Ministry of Education for Advanced Battery Materials, Hunan Provincial Key Laboratory of Nonferrous Value-Added Metallurgy, School of Metallurgy and Environment, Central South University, Changsha, 410083, P. R. China.
Electrochemical CO reduction (CORR) in membrane electrode assembly (MEA) represents a viable strategy for converting CO into value-added multi-carbon (C) compounds. Therefore, the microstructure of the catalyst layer (CL) affects local gas transport, charge conduction, and proton supply at three-phase interfaces, which is significantly determined by the solvent environment. However, the microenvironment of the CLs and the mechanism of the solvent effect on C selectivity remains elusive.
View Article and Find Full Text PDFChemphyschem
January 2025
Nanjing Tech University, College of Chemical Engineering, CHINA.
Recently, Beller and coworkers reported a study on the reversible hydrogenation of CO2 to formic acid using a Mn(I)-PN5P complex. In this paper, we performed DFT calculations to understand the mechanism for this reversible reaction occurring on the Mn-PN5P, Mn-PN3P, and Mn-PNP catalysts. Through investigating in detail two possible routes for CO2 hydrogenation to formic acid, we noticed that the production of formic acid is not thermodynamically favorable.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China.. Electronic address:
The present study intended to investigate the properties of collagen peptide (CP)-astragaloside (AG) nanocomplexes (CPANs) improved oxidized hydroxypropyl starch (OHS)/chitosan (CS) (OC) film and to explore the preservation of chilled beef. The results indicated that AG significantly enhanced the stability, antioxidant capacity, and antibacterial properties of CP through mechanisms like static quenching and hydrophobic interactions. The incorporation of CPANs improved thickness, swellability, and water vapor blocking, UV-blocking and mechanical properties, antioxidant and antibacterial activity of OC film.
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