A phosphate-derived bismuth catalyst with abundant grain boundaries for efficient reduction of CO2 to HCOOH.

Impact Factor:

6.222

DOI number:

10.1039/d0cc06756c

Journal:

Chem. Commun.

Key Words:

Bismuth, Bismuth compounds, Catalysts, Electrolytic reduction, Electron emission, Grain boundaries, Catalytic performance, CO2 activation, Electro reduction, Electrochemical transformation, High current densities, Mechanistic studies, Formic acid, carbon dioxide, nanorod, phosphate, adsorption, Article, catalyst, chemical parameters, chemical structure, controlled study, current density, electrochemistry, grain boundary, hydrogen evolution, kinetics, reduction (chemistry), synthesis

Abstract:

Electroreduction of CO2 to HCOOH with high current densities and efficiencies remains a challenge. Herein, we developed a metallic Bi catalyst with abundant grain boundaries through the electrochemical transformation of BiPO4 nanorods to boost the catalytic performance of the electroreduction of CO2 to HCOOH. The phosphate-derived Bi catalyst (PD-Bi) achieved an FE of 91.9% for HCOOH at a high current density of -600.0 mA cm(-2). Mechanistic study revealed that the abundant grain boundaries within PD-Bi promoted the adsorption of CO2 and stabilization of the CO2- intermediate, resulting in facilitated CO2 activation and thus enhanced catalytic performance.

Co-author:

Huihuang Chen, Yan Liu, Yelin Sheng, Jie Zeng

First Author:

Yulin Xing

Correspondence Author:

Zhigang Geng, Jun Bao

Document Type:

SCI

Volume:

57

Issue:

12

Page Number:

1502-1505

Translation or Not:

no

Date of Publication:

2020-12-09

Links to published journals:

https://pubs.rsc.org/en/content/articlelanding/2021/CC/D0CC06756C