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

Title
Tungsten carbide nanowalls as electrocatalyst for hydrogen evolutionreaction: New approach to durability issue
Authors
이욱성백영준이경석박종극김인호정두석고영진조정민최헌진
Keywords
Hydrogen Evolution; Tungsten Carbide; Nanowalls; Electrochemical durability; Turnover frequency
Issue Date
2017-04
Publisher
Applied catalysis B, Environmental
Citation
VOL 203-691
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.
URI
http://pubs.kist.re.kr/handle/201004/65221
ISSN
0926-3373
Appears in Collections:
KIST Publication > Article
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