Your browser doesn't support javascript.
loading
Surface Area-Enhanced Cerium and Sulfur-Modified Hierarchical Bismuth Oxide Nanosheets for Electrochemical Carbon Dioxide Reduction to Formate.
Palanimuthu, Naveenkumar; Subramaniam, Mohan Raj; P, Muthu Austeria; Sharma, Preetam Kumar; Ramalingam, Vinoth; Peramaiah, Karthik; Ramakrishnan, Shanmugam; Gu, Geun Ho; Yu, Eileen Hao; Yoo, Dong Jin.
Afiliación
  • Palanimuthu N; Graduate School, Department of Energy Storage/Conversion Engineering (BK21 FOUR), Hydrogen and Fuel Cell Research Center, Jeonbuk National University, Jeonju, Jeollabuk-do, 54896, Republic of Korea.
  • Subramaniam MR; Graduate School, Department of Energy Storage/Conversion Engineering (BK21 FOUR), Hydrogen and Fuel Cell Research Center, Jeonbuk National University, Jeonju, Jeollabuk-do, 54896, Republic of Korea.
  • P MA; Department of Energy Engineering, Korea Institute of Energy Technology (KENTECH), Naju, 58330, Republic of Korea.
  • Sharma PK; Institute for Materials Discovery, University College London, Malet Place, London, WC1E 7JE, United Kingdom.
  • Ramalingam V; Department of Chemical Engineering, Loughborough University, Loughborough, LE11 3TU, United Kingdom.
  • Peramaiah K; School of Engineering, Robert Gordon University, Garthdee Road, Aberdeen, AB10 7GJ, United Kingdom.
  • Ramakrishnan S; Agency for Science, Technology, and Research, Institute of Sustainability for Chemicals, Energy and Environment, 1Pesek Road, Jurong Island, Singapore, 627833, Singapore.
  • Gu GH; Graduate School, Department of Energy Storage/Conversion Engineering (BK21 FOUR), Hydrogen and Fuel Cell Research Center, Jeonbuk National University, Jeonju, Jeollabuk-do, 54896, Republic of Korea.
  • Yu EH; School of Engineering, Newcastle University, Merz Court, Newcastle upon Tyne, NE17RU, United Kingdom.
  • Yoo DJ; Department of Energy Engineering, Korea Institute of Energy Technology (KENTECH), Naju, 58330, Republic of Korea.
Small ; : e2400913, 2024 Jun 07.
Article en En | MEDLINE | ID: mdl-38847569
ABSTRACT
Electrochemical carbon dioxide reduction reaction (ECO2RR) is a promising approach to synthesize fuels and value-added chemical feedstocks while reducing atmospheric CO2 levels. Here, high surface area cerium and sulfur-doped hierarchical bismuth oxide nanosheets (Ce@S-Bi2O3) are develpoed by a solvothermal method. The resulting Ce@S-Bi2O3 electrocatalyst shows a maximum formate Faradaic efficiency (FE) of 92.5% and a current density of 42.09 mA cm-2 at -1.16 V versus RHE using a traditional H-cell system. Furthermore, using a three-chamber gas diffusion electrode (GDE) reactor, a maximum formate FE of 85% is achieved in a wide range of applied potentials (-0.86 to -1.36 V vs RHE) using Ce@S-Bi2O3. The density functional theory (DFT) results show that doping of Ce and S in Bi2O3 enhances formate production by weakening the OH* and H* species. Moreover, DFT calculations reveal that *OCHO is a dominant pathway on Ce@S-Bi2O3 that leads to efficient formate production. This study opens up new avenues for designing metal and element-doped electrocatalysts to improve the catalytic activity and selectivity for ECO2RR.
Palabras clave
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Small Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Small Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article Pais de publicación: Alemania