Magnesium-Mediated Charge Redistribution of Molybdenum Site for Enhanced Alkaline Hydrogen Production
Source abstract
Abstract
The production of hydrogen through the electrochemical splitting of water stands out as a promising method. Molybdenum carbide (Mo 2 C) serves as an effective alternative to noble metal electrocatalysts for the hydrogen evolution reaction (HER). However, its application for large-scale use remains limited. This work adopts a simple one-step sintering process to introduce nonprecious metal heteroatoms (Mg) for modulating the electronic structure of molybdenum carbide (Mg–Mo 2 C), which effectively creates additional active sites due to the charge transfer between Mo sites and Mg dopant; thus, the kinetics of HER improves significantly. Notably, the synthesized Mg–Mo 2 C achieved a current density of 10 mA cm –2 with a low overpotential of 111 mV and a small Tafel slope of 68.23 mV dec –1 and demonstrated excellent stability in 1 M KOH. This research provides insights into the rational design of effective and cost-efficient electrocatalysts in energy storage and conversion applications.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electrocatalysts for Energy Conversion · Hydrogen Storage and Materials · Catalysis and Hydrodesulfurization Studies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Material Science and Engineering, International S&T Cooperation Foundation of Shaanxi Province, Shaanxi University of Science and Technology, Xi’an 710021, P. R. China
Research Laboratory of Hydrothermal Chemistry, Kochi University, Kochi 780-8520, Japan
Guangdong Mona Lisa Group Co. Ltd., Foshan, Guangdong 528211, P. R. China
College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, P. R. China
Funding
Xi'an Municipal Bureau of Science and Technology · Agriculture Department of Shaanxi Province · National Natural Science Foundation of China · Key Research and Development Projects of Shaanxi Province · Science and Technology Program in Weiyang District, Xi?an · International Science and Technology Cooperation Projects of Shaanxi Province
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