共 58 条
Pulse Electrodeposition of a Superhydrophilic and Binder-Free Ni- Fe-P Nanostructure as Highly Active and Durable Electrocatalyst for Both Hydrogen and Oxygen Evolution Reactions
被引:100
作者:
Darband, Ghasem Barati
[2
,3
]
Aliofkhazraei, Mahmood
[2
]
Hyun, Suyeon
[1
]
Shanmugam, Sangaraju
[1
]
机构:
[1] Daegu Gyeongbuk Inst Sci & Technol DGIST, Dept Energy Sci & Engn, Daegu 42988, South Korea
[2] Tarbiat Modares Univ, Dept Mat Engn, Tehran 14115143, Iran
[3] Ferdowsi Univ Mashhad, Fac Engn, Mat & Met Engn Dept, Mashhad 917751111, Razavi Khorasan, Iran
关键词:
pulse electrodeposition;
hydrogen evolution reaction;
oxygen evolution reaction;
Ni-Fe-P nanostructure;
BIFUNCTIONAL ELECTROCATALYST;
EFFICIENT;
CATALYSTS;
NANOSHEETS;
CO;
COATINGS;
FOAM;
D O I:
10.1021/acsami.0c13648
中图分类号:
TB3 [工程材料学];
学科分类号:
0805 ;
080502 ;
摘要:
Development and fabrication of electrodes with favorable electrocatalytic activity, low-cost, and excellent electrocatalytic durability are one of the most important issues in the hydrogen production area using the electrochemical water splitting process. We use the pulse electrodeposition method as a versatile and cost-effective approach to synthesize three-dimensional Ni-Fe-P electrocatalysts on nickel nanostructures under various applied frequencies and duration times, in which nanostructures exhibit excellent intrinsic electrocatalytic activity. Benefiting from the three-dimensional structure, as well as the simultaneous presence of the three elements nickel, iron, and phosphorus, the electrode fabricated at the optimal conditions has indicated outstanding electrocatalytic activity with a eta(10) of 66 and 198 mV for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER), respectively, in a 1.0 M KOH solution. Also, the water electrolysis cell constructed with this electrode and tested as a bifunctional electrode exhibited 1.508 V for 10 mA cm(-2) in overall water splitting. In addition, the lowest amount of potential change in 100 mA cm(-2 )was observed for HER and OER, indicating excellent electrocatalytic stability. This study proposes a binder-free and economical technique for the synthesis of three-dimensional electrocatalysts.
引用
收藏
页码:53719 / 53730
页数:12
相关论文