Controllable synthesis of few-layer bismuth subcarbonate by electrochemical exfoliation for enhanced CO2 reduction performance

Ying Zhang, Xiaolong Zhang, Yunzhi Ling, Fengwang Li, Alan M. Bond, Jie Zhang

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Two-dimensional (2D) engineering of materials has been recently explored to enhance the performance of electrocatalysts by reducing their dimensionality and introducing more catalytically active ones. In this work, controllable synthesis of few-layer bismuth subcarbonate nanosheets has been achieved via an electrochemical exfoliation method. These nanosheets catalyse CO2 reduction to formate with high faradaic efficiency and high current density at a low overpotential owing to the 2D structure and co-existence of bismuth subcarbonate and bismuth metal under catalytic turnover conditions. Two underlying fast electron transfer processes revealed by Fourier-transformed alternating current voltammetry (FTacV) are attributed to CO2 reduction at bismuth subcarbonate and bismuth metal. FTacV results also suggest that protonation of CO2 .− is the rate determining step for bismuth catalysed CO2 reduction.

Original languageEnglish
Pages (from-to)13283-13287
Number of pages5
Journal Angewandte Chemie - International Edition
Volume57
Issue number40
DOIs
Publication statusPublished - 1 Oct 2018

Keywords

  • 2D materials
  • bismuth subcarbonate
  • CO reduction
  • electrocatalysts
  • FTac voltammetry

Cite this

@article{f8b7a130b24f4a62abb68888285f4b30,
title = "Controllable synthesis of few-layer bismuth subcarbonate by electrochemical exfoliation for enhanced CO2 reduction performance",
abstract = "Two-dimensional (2D) engineering of materials has been recently explored to enhance the performance of electrocatalysts by reducing their dimensionality and introducing more catalytically active ones. In this work, controllable synthesis of few-layer bismuth subcarbonate nanosheets has been achieved via an electrochemical exfoliation method. These nanosheets catalyse CO2 reduction to formate with high faradaic efficiency and high current density at a low overpotential owing to the 2D structure and co-existence of bismuth subcarbonate and bismuth metal under catalytic turnover conditions. Two underlying fast electron transfer processes revealed by Fourier-transformed alternating current voltammetry (FTacV) are attributed to CO2 reduction at bismuth subcarbonate and bismuth metal. FTacV results also suggest that protonation of CO2 .− is the rate determining step for bismuth catalysed CO2 reduction.",
keywords = "2D materials, bismuth subcarbonate, CO reduction, electrocatalysts, FTac voltammetry",
author = "Ying Zhang and Xiaolong Zhang and Yunzhi Ling and Fengwang Li and Bond, {Alan M.} and Jie Zhang",
year = "2018",
month = "10",
day = "1",
doi = "10.1002/anie.201807466",
language = "English",
volume = "57",
pages = "13283--13287",
journal = "Angewandte Chemie - International Edition",
issn = "1433-7851",
publisher = "Wiley-Blackwell",
number = "40",

}

Controllable synthesis of few-layer bismuth subcarbonate by electrochemical exfoliation for enhanced CO2 reduction performance. / Zhang, Ying; Zhang, Xiaolong; Ling, Yunzhi; Li, Fengwang; Bond, Alan M.; Zhang, Jie.

In: Angewandte Chemie - International Edition, Vol. 57, No. 40, 01.10.2018, p. 13283-13287.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Controllable synthesis of few-layer bismuth subcarbonate by electrochemical exfoliation for enhanced CO2 reduction performance

AU - Zhang, Ying

AU - Zhang, Xiaolong

AU - Ling, Yunzhi

AU - Li, Fengwang

AU - Bond, Alan M.

AU - Zhang, Jie

PY - 2018/10/1

Y1 - 2018/10/1

N2 - Two-dimensional (2D) engineering of materials has been recently explored to enhance the performance of electrocatalysts by reducing their dimensionality and introducing more catalytically active ones. In this work, controllable synthesis of few-layer bismuth subcarbonate nanosheets has been achieved via an electrochemical exfoliation method. These nanosheets catalyse CO2 reduction to formate with high faradaic efficiency and high current density at a low overpotential owing to the 2D structure and co-existence of bismuth subcarbonate and bismuth metal under catalytic turnover conditions. Two underlying fast electron transfer processes revealed by Fourier-transformed alternating current voltammetry (FTacV) are attributed to CO2 reduction at bismuth subcarbonate and bismuth metal. FTacV results also suggest that protonation of CO2 .− is the rate determining step for bismuth catalysed CO2 reduction.

AB - Two-dimensional (2D) engineering of materials has been recently explored to enhance the performance of electrocatalysts by reducing their dimensionality and introducing more catalytically active ones. In this work, controllable synthesis of few-layer bismuth subcarbonate nanosheets has been achieved via an electrochemical exfoliation method. These nanosheets catalyse CO2 reduction to formate with high faradaic efficiency and high current density at a low overpotential owing to the 2D structure and co-existence of bismuth subcarbonate and bismuth metal under catalytic turnover conditions. Two underlying fast electron transfer processes revealed by Fourier-transformed alternating current voltammetry (FTacV) are attributed to CO2 reduction at bismuth subcarbonate and bismuth metal. FTacV results also suggest that protonation of CO2 .− is the rate determining step for bismuth catalysed CO2 reduction.

KW - 2D materials

KW - bismuth subcarbonate

KW - CO reduction

KW - electrocatalysts

KW - FTac voltammetry

UR - http://www.scopus.com/inward/record.url?scp=85053430320&partnerID=8YFLogxK

U2 - 10.1002/anie.201807466

DO - 10.1002/anie.201807466

M3 - Article

VL - 57

SP - 13283

EP - 13287

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

SN - 1433-7851

IS - 40

ER -