83 0

Tungsten carbide nanowalls as electrocatalyst for hydrogen evolution reaction: New approach to durability issue

Title
Tungsten carbide nanowalls as electrocatalyst for hydrogen evolution reaction: New approach to durability issue
Author
정두석
Keywords
Hydrogen evolution; Tungsten carbide; Nanowall structure; Electrochemical durability; Turnover frequency
Issue Date
2017-04
Publisher
ELSEVIER SCIENCE BV
Citation
APPLIED CATALYSIS B-ENVIRONMENTAL, v. 203, page. 684-691
Abstract
We report a new approach to the durability issue in tungsten carbide electrocatalyst for hydrogen evolution reaction (HER), in a form radically differing from that of the conventional nanoparticle approach: the WC nanowalls, bottom-up grown by a plasma-assisted deposition on Si wafer. The pristine nanowall was highly crystalline and its surface was smooth in atomic scale, which enabled a superior durability in HER environment: no oxidation occurred at prolonged cycling (10,000 cycles) in the HER environment, even without additional functionalization or modification. The electrochemical activity, as presented by Tafel slope and turnover frequency (TOF), was as excellent as those of the best data in the literature. (C) 2016 Elsevier B.V. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S0926337316308578?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/113869
ISSN
0926-3373; 1873-3883
DOI
10.1016/j.apcatb.2016.10.085
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE