TY - JOUR
T1 - Investigation of hydrogen evolution activity for the nickel, nickel-molybdenum nickel-graphite composite and nickel-reduced graphene oxide composite coatings
AU - Jinlong, Lv
AU - Tongxiang, Liang
AU - Chen, Wang
N1 - Funding Information:
This work is supported by the National Natural Science Foundation of China (Beijing, China; grant numbers 21271114 and 91326203); Tsinghua University Independent Research and Development Fund (Beijing, China; grant number 20111080982), and the Program for Changjiang Scholars and Innovative Research Team in University (Beijing, China; grant number IRT13026).
PY - 2016/3/15
Y1 - 2016/3/15
N2 - The nickel, nickel-molybdenum alloy, nickel-graphite and nickel-reduced graphene oxide composite coatings were obtained by the electrodeposition technique from a nickel sulfate bath. Nanocrystalline molybdenum, graphite and reduced graphene oxide in nickel coatings promoted hydrogen evolution reaction in 0.5 M H 2 SO 4 solution at room temperature. However, the nickel-reduced graphene oxide composite coating exhibited the highest electrocatalytic activity for the hydrogen evolution reaction in 0.5 M H 2 SO 4 solution at room temperature. A large number of gaps between 'cauliflower' like grains could decrease effective area for hydrogen evolution reaction in slight amorphous nickel-molybdenum alloy. The synergistic effect between nickel and reduced graphene oxide promoted hydrogen evolution, moreover, refined grain in nickel-reduced graphene oxide composite coating and large specific surface of reduced graphene oxide also facilitated hydrogen evolution reaction.
AB - The nickel, nickel-molybdenum alloy, nickel-graphite and nickel-reduced graphene oxide composite coatings were obtained by the electrodeposition technique from a nickel sulfate bath. Nanocrystalline molybdenum, graphite and reduced graphene oxide in nickel coatings promoted hydrogen evolution reaction in 0.5 M H 2 SO 4 solution at room temperature. However, the nickel-reduced graphene oxide composite coating exhibited the highest electrocatalytic activity for the hydrogen evolution reaction in 0.5 M H 2 SO 4 solution at room temperature. A large number of gaps between 'cauliflower' like grains could decrease effective area for hydrogen evolution reaction in slight amorphous nickel-molybdenum alloy. The synergistic effect between nickel and reduced graphene oxide promoted hydrogen evolution, moreover, refined grain in nickel-reduced graphene oxide composite coating and large specific surface of reduced graphene oxide also facilitated hydrogen evolution reaction.
KW - Alloy
KW - Electrodeposition
KW - Graphene
KW - Hydrogen evolution
KW - Surface morphology
UR - http://www.scopus.com/inward/record.url?scp=84960155129&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84960155129&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2016.01.114
DO - 10.1016/j.apsusc.2016.01.114
M3 - Article
AN - SCOPUS:84960155129
VL - 366
SP - 353
EP - 358
JO - Applied Surface Science
JF - Applied Surface Science
SN - 0169-4332
ER -