1. Rational Construction of Pt Incorporated Co3O4 as High-Performance Electrocatalyst for Hydrogen Evolution Reaction
- Author
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Peijia Wang, Yaotian Yan, Bin Qin, Xiaohang Zheng, Wei Cai, and Junlei Qi
- Subjects
hydrogen evolution reaction ,Pt nanoparticle ,Co3O4 nanoarrays ,electrocatalytic ,synergistic effect ,Chemistry ,QD1-999 - Abstract
Electrocatalysts in alkaline electrocatalytic water splitting are required to efficiently produce hydrogen while posing a challenge to show excellent performances. Herein, we have successfully synthesized platinum nanoparticles incorporated in a Co3O4 nanostructure (denoted as Pt-Co3O4) that show superior HER activity and stability in alkaline solutions (the overpotentials of 37 mV to reach 10 mA cm−2). The outstanding electrocatalytic activity originates from synergistic effects between Pt and Co3O4 and increased electron conduction. Theoretical calculations show a significant decrease in the ΔGH* of Co active sites and a remarkable increase in electron transport. Our work puts forward a special and simple synthesized way of adjusting the H* adsorption energy of an inert site for application in HER.
- Published
- 2024
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