Core-Shell AgNWs@Ni(OH)(2)Nanowires Anchored on Filter Paper for Efficient Hydrogen Evolution Reaction

Liu, Ya1,2; Zhang, Gaowei3; Zuo, Chunyan3; Zhao, Kefei3; Zeng, Junrong3; Yin, Jing4; Chen, Hongtao3; Xie, Shenghui1,2; Qiu, Yejun3

2020-01-08

10.1149/1945-7111/aba4e4

JOURNAL OF THE ELECTROCHEMICAL SOCIETY   影响因子和分区

0013-4651

1945-7111

Transition metal (Fe, Ni, Co)-based hydroxides, especially nickel hydroxide (Ni(OH)(2)), have been considered as promising candidate for hydrogen evolution reaction (HER) because of their low cost, natural abundance and high catalytic performance. However, the catalytic performance of Ni(OH)(2)is still unsatisfactory for practical application due to its relatively low electrical conductivity. Here, a highly conductive silver nanowires (AgNWs) network is prepared on filter paper, followed by the electrodeposition of Ni(OH)(2)on the surface of AgNWs to form AgNWs@Ni(OH)(2)core-shell structure. In comparison with pure Ni(OH)(2)(376 mV at -10 mA cm(-2)), the optimized AgNWs@Ni(OH)(2)electrode can exhibit about 3-fold enhanced HER performance, which achieves a lower overpotential of 123 mV at the current density of -10 mA cm(-2), and a small Tafel slope of 76 mV dec(-1)in 1 M KOH electrolyte. Besides the superior activity, the AgNWs@Ni(OH)(2)electrode also shows a better durability. Such enhanced catalytic performance benefits from the high conductivity of AgNWs network to facilitate electron transfer, and the synergistic interaction between AgNWs and Ni(OH)(2). This work also provides general strategies to design highly active HER electrocatalysts by utilizing highly conductive AgNWs to form core-shell architecture.

Silver nanowires nickel hydroxide core-shell structure Electrocatalysis hydrogen evolution

SCI ; EI

英语

其他

National Natural Science Foundation of China[51971080] ; Natural Science Foundation of Guangdong Province, China[2018A030313182] ; Shenzhen Bureau of Science, Technology and Innovation Commission[JCYJ20170811154527927]

Electrochemistry ; Materials Science

Electrochemistry ; Materials Science, Coatings & Films

WOS:000555556500001

ELECTROCHEMICAL SOC INC

20203909226789

Shells (structures) ; Transition metals ; Cobalt compounds ; Electrolytes ; Potassium hydroxide ; Silver compounds ; Hydrogen ; Electrocatalysts ; Electrodes

Structural Members and Shapes:408.2 ; Metallurgy and Metallography:531 ; Electric Batteries and Fuel Cells:702 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2

CHEMISTRY

Web of Science

1.Shenzhen Univ, Shenzhen Engn Lab Adv Technol Ceram, Coll Mat Sci & Engn, Shenzhen 518060, Peoples R China
2.Shenzhen Univ, Shenzhen Key Lab Special Funct Mat, Coll Mat Sci & Engn, Shenzhen 518060, Peoples R China
3.Harbin Inst Technol, Shenzhen Engn Lab Flexible Transparent Conduct Fi, Sch Mat Sci & Engn, Shenzhen 518055, Peoples R China
4.Southern Univ Sci & Technol, Core Res Facil, Shenzhen 518055, Peoples R China

Liu, Ya,Zhang, Gaowei,Zuo, Chunyan,et al. Core-Shell AgNWs@Ni(OH)(2)Nanowires Anchored on Filter Paper for Efficient Hydrogen Evolution Reaction[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY,2020,167(11).

Liu, Ya.,Zhang, Gaowei.,Zuo, Chunyan.,Zhao, Kefei.,Zeng, Junrong.,...&Qiu, Yejun.(2020).Core-Shell AgNWs@Ni(OH)(2)Nanowires Anchored on Filter Paper for Efficient Hydrogen Evolution Reaction.JOURNAL OF THE ELECTROCHEMICAL SOCIETY,167(11).

Liu, Ya,et al."Core-Shell AgNWs@Ni(OH)(2)Nanowires Anchored on Filter Paper for Efficient Hydrogen Evolution Reaction".JOURNAL OF THE ELECTROCHEMICAL SOCIETY 167.11(2020).