Indexed by:
Journal Papers
First Author:
Gan, Guoqiang
Correspondence Author:
Li, XY (reprint author), Dalian Univ Technol, Sch Environm Sci & Technol, Key Lab Ind Ecol & Environm Engn MOE, State Key Lab Fine Chem, Dalian 116024, Peoples R China.; Li, XY; Chen, AC (reprint author), Univ Guelph, Dept Chem, Electrochem Technol Ctr, 50 Stone Rd East, Guelph, ON N1G 2W1, Canada.
Co-author:
Li, Xinyong,Wang, Liang,Fan, Shiying,Li, Ji,Liang, Feng,Chen, Aicheng
Date of Publication:
2019-12-01
Journal:
ACS CATALYSIS
Included Journals:
SCIE
Document Type:
J
Volume:
9
Issue:
12
Page Number:
10931-10939
ISSN No.:
2155-5435
Key Words:
1,2-dichloroethane; surface N-doped porous carbon; electrocatalytic
dechlorination; active sites; theoretical calculations
Abstract:
Nitrogen (N)-doped carbon materials are considered as the most promising alternative to replace noble-metal catalysts for electrocatalytic dechlorination of 1,2-dichloroethane (DCE), which is a promising reaction for industrial production and environmental protection. Unfortunately, the vague cognition of the catalytic active sites limits its further development. Herein, a series of surface N-doped porous carbon materials with adjustable N dopants were synthesized to identify the active sites for electrocatalytic dechlorination of DCE. The as-prepared catalyst showed fascinating DCE electrocatalytic dechlorination activity and ethylene selectivity at -2.75 V (vs SCE) with a current density of 17.94 mA cm(geometry)(-2) and ethylene Faradaic efficiency of 21%. The post hydrogen treatment and X-ray photoelectron spectroscopic analysis experimentally proved that the oxidized N acts as the active site for the dechlorination of DCE to CH2CH2, which was further theoretically confirmed by first-principles calculations. This work would open avenues for the development of N-doped carbon and the production of ethylene in an efficient and environmentally benign manner.
Translation or Not:
no
