TY - JOUR
T1 - In-situ surface-derivation of Ni-Mo bimetal sulfides nanosheets on Co
3
O
4
nanoarrays as an advanced overall water splitting electrocatalyst in alkaline solution
AU - Xiong, Ting
AU - Li, Guofang
AU - Young, David J.
AU - Tan, Ziyu
AU - Yin, Xian Hong
AU - Mi, Yan
AU - Hu, Feilong
PY - 2019/6/30
Y1 - 2019/6/30
N2 - Developing high-performance overall water-splitting electrocatalysts working under alkaline condition is highly desirable but many challenges remain. Herein, the in-situ surface-derivation of Ni-Mo bimetal sulfides nanosheets on Co 3 O 4 nanoarrays, which supported on carbon fibers (Ni-Mo-S@Co 3 O 4 /CF) was designed and constructed. The as-prepared hybrid catalyst exhibits excellent electrocatalytic performance for both OER and HER under alkaline conditions, with only a small overpotential of 275 mV and 85 mV at a current density of 10 mA cm −2 , respectively. Furthermore, the hybrid catalysts assembled full electrolyzer achieved a current density of 10 mA cm −2 at 1.57 V in an alkaline condition, without decay even after a durability test of 50 h. These results demonstrate that in-situ surface-derivation is a promising strategy for the design of efficient overall water splitting catalysts.
AB - Developing high-performance overall water-splitting electrocatalysts working under alkaline condition is highly desirable but many challenges remain. Herein, the in-situ surface-derivation of Ni-Mo bimetal sulfides nanosheets on Co 3 O 4 nanoarrays, which supported on carbon fibers (Ni-Mo-S@Co 3 O 4 /CF) was designed and constructed. The as-prepared hybrid catalyst exhibits excellent electrocatalytic performance for both OER and HER under alkaline conditions, with only a small overpotential of 275 mV and 85 mV at a current density of 10 mA cm −2 , respectively. Furthermore, the hybrid catalysts assembled full electrolyzer achieved a current density of 10 mA cm −2 at 1.57 V in an alkaline condition, without decay even after a durability test of 50 h. These results demonstrate that in-situ surface-derivation is a promising strategy for the design of efficient overall water splitting catalysts.
KW - Alkaline condition
KW - Bimetal sulfides
KW - Electrocatalytic
KW - Overall water-splitting
UR - http://www.scopus.com/inward/record.url?scp=85063544539&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2019.03.313
DO - 10.1016/j.jallcom.2019.03.313
M3 - Article
AN - SCOPUS:85063544539
SN - 0925-8388
VL - 791
SP - 328
EP - 335
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
ER -