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Microstructural surface changes of electrodeposited Pb on gas diffusion electrode during electroreduction of gas‐phase CO 2
Author(s) -
Machunda Revocatus L.,
Lee JongGyu,
Lee Jaeyoung
Publication year - 2010
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.3245
Subject(s) - formic acid , gas diffusion electrode , catalysis , scanning electron microscope , diffusion , gaseous diffusion , electrode , chemistry , microstructure , carbon monoxide , chemical engineering , phase (matter) , inorganic chemistry , analytical chemistry (journal) , electrochemistry , materials science , crystallography , organic chemistry , thermodynamics , composite material , physics , engineering
We have applied zero‐gap cell for gas‐phase CO 2 conversion to introduce better applicability at large scale. The cathodic reduction of CO 2 has attracted considerable attention with the aim of generating useful fuels and chemicals. The CO 2 gas is reduced on the surface of the electrodeposited Pb on gas diffusion electrode to give mainly formic acid, accompanied by morphological and crystalline changes of the catalyst. These changes are revealed by both scanning electron microscope and X‐ray diffraction analysis. The catalytic conversion of CO 2 gas as a function of Pb microstructures in relation to formic acid production was also investigated and is presented. Copyright © 2010 John Wiley & Sons, Ltd.