Peptide templated AuPt alloyed nanoparticles as highly efficient Bi-functional electrocatalysts for both oxygen reduction reaction and hydrogen evolution reaction

Study on the catalytic performance of Pd/TiO2 electrocatalyst for hydrogen evolution reaction

The electrochemical methanol oxidation is a crucial reaction in the conversion of renewable energy. To enable the widespread adoption of direct methanol fuel cells (DMFCs), it is essential to create and engineer catalysts that are both highly effective and robust for conducting the methanol oxidation reaction (MOR). In this work, trimetallic PtCoRu electrocatalysts on nitrogen-doped carbon and multi-wall carbon nanotubes (PtCoRu@NC/MWCNTs) were prepared through a two-pot synthetic strategy. The acceleration of CO oxidation to CO2 and the blocking of CO reduction on adjacent Pt active sites were attributed to the crucial role played by cobalt atoms in the as-prepared electrocatalysts. The precise control of Co atoms loading was achieved through precursor stoichiometry. Various physicochemical techniques were employed to analyze the morphology, element composition, and electronic state of the catalyst. Electrochemical investigations and theoretical calculations confirmed that the Pt1Co3Ru1@NC/MWCNTs exhibit excellent electrocatalytic performance and durability for the process of MOR. The enhanced MOR activity can be attributed to the synergistic effect between the multiple elements resulting from precisely controlled Co loading content on surface of the electrocatalyst, which facilitates efficient charge transfer. This interaction between the multiple components also modifies the electronic structures of active sites, thereby promoting the conversion of intermediates and accelerating the MOR process. Thus, achieving precise control over Co loading in PtCoRu@NC/MWCNTs would enable the development of high-performance catalysts for DMFCs. 

Precision tuning of highly efficient Pt-based ternary alloys on nitrogen-doped multi-wall carbon nanotubes for methanol oxidation reaction

Urea is an important chemical in agricultural, biosystem and chemical engineering. It can not only be a fertilizer and feed supplement, but also converted into electricity and hydrogen based on the counterpart half-reactions. In this concept, we demonstrated the fundamental mechanism of electrochemical urea oxidation reaction (UOR) and its various applications on environmental, energy and healthcare devices with typical examples. UOR providing potential directions for the electrochemical treatment of urea-contained wastewater were also introduced in this concept. This work is not focused on electrocatalyst design, but rather offers instructive guidance for the UOR developments in environmental, energy, and healthcare devices. 

Urea Electrooxidation in Alkaline Environment: Fundamentals and Applications

MoS2 supported on Er-MOF as efficient electrocatalysts for hydrogen evolution reaction

http://jes.ecsdl.org/content/163/7/H485.full.pdf

Investigation of the AuPdPt-WC/C Electrocatalyst for Hydrogen Evolution Reaction

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Investigation of the AuPdPt-WC/C Electrocatalyst for Hydrogen Evolution Reaction