Shape-controlled synthesis of planar PtPb nanoplates for highly efficient methanol electro-oxidation reaction

Lei Chen; Luozeng Zhou; Hongbin Lu; Yaqin Zhou; Jialu Huang; Jin Wang; Yang Wang; Xiaolei Yuan; Yong Yao

doi:10.1039/d0cc03704d

Shape-controlled synthesis of planar PtPb nanoplates for highly efficient methanol electro-oxidation reaction

Chem Commun (Camb). 2020 Aug 11;56(64):9138-9141. doi: 10.1039/d0cc03704d.

Authors

Lei Chen¹, Luozeng Zhou², Hongbin Lu³, Yaqin Zhou², Jialu Huang³, Jin Wang³, Yang Wang³, Xiaolei Yuan³, Yong Yao³

Affiliations

¹ School of Chemistry and Chemical Engineering, Nantong University, 9 Seyuan Road, Nantong, 226019, Jiangsu, P. R. China. xlyuan@ntu.edu.cn yaoyong1986@ntu.edu.cn and SEU-FEI Nano-Pico Center, Key Lab of MEMS of Ministry of Education, Southeast University, Nanjing, 210096, P. R. China.
² State Key Laboratory of Space Power-Sources Technology, Shanghai Institute of Space Power-Sources, 2965 Dongchuan Road, Shanghai, 200245, P. R. China.
³ School of Chemistry and Chemical Engineering, Nantong University, 9 Seyuan Road, Nantong, 226019, Jiangsu, P. R. China. xlyuan@ntu.edu.cn yaoyong1986@ntu.edu.cn.

PMID: 32644079
DOI: 10.1039/d0cc03704d

Abstract

In this work, novel insights into the influence of different nanocrystal structures on the electrocatalytic oxidation of methanol are reported. Herein, we have successfully prepared high-yield PtPb nanoplates in the diethylene glycol (DEG) solvent. The as-obtained PtPb nanoplates with a large surface area of the (102) facet show higher MOR activity and superior durability in alkaline electrolyte compared with both zero-dimensional PtPb nanoparticles and commercial Pt/C. Further chronoamperometric (CA) measurements and discrete Fourier transform (DFT) calculations indicate that the PtPb nanoplates possess much better operation durability and CO tolerance due to the negative adsorption energy of the (102) facet.