Carbon-encapsulated nickel-iron nanoparticles supported on nickel foam as a catalyst electrode for urea electrolysis

2017 ◽  
Vol 227 ◽  
pp. 210-216 ◽  
Author(s):  
Mao-Sung Wu ◽  
Chi-Yu Jao ◽  
Farn-Yih Chuang ◽  
Fang-Yi Chen
CrystEngComm ◽  
2020 ◽  
Vol 22 (8) ◽  
pp. 1425-1435 ◽  
Author(s):  
Yu Lin ◽  
Zhi Yang ◽  
Duanlin Cao ◽  
Yaqiong Gong

The obtained NiFe–MnCo2O4/NFF electrode exhibited superior electrocatalytic performance and extraordinary durability for the OER, HER, and overall water splitting.


2018 ◽  
Vol 54 (40) ◽  
pp. 5066-5069 ◽  
Author(s):  
Ying Gou ◽  
Qin Liu ◽  
Xifeng Shi ◽  
Abdullah M. Asiri ◽  
Jianming Hu ◽  
...  

CaMoO4 nanosheet arrays grown in situ on nickel foam (CaMoO4/NF) act as a superior 3D catalyst electrode for alkaline water oxidation with high long-term durability.


2013 ◽  
Vol 68 ◽  
pp. 30-36 ◽  
Author(s):  
Nor Azrina Resali ◽  
Koay Mei Hyie ◽  
M.N. Berhan ◽  
Zuraidah Salleh ◽  
Salmiah Kasolang

2002 ◽  
Vol 14 (12) ◽  
pp. 5140-5147 ◽  
Author(s):  
Bettina Schrick ◽  
Jennifer L. Blough ◽  
A. Daniel Jones ◽  
Thomas E. Mallouk

2021 ◽  
Author(s):  
Woo Hyun Yun ◽  
Gautam Das ◽  
Bohyeon Kim ◽  
Bang Ju Park ◽  
Hyon Hee Yoon ◽  
...  

Abstract A free-standing catalyst electrode for the urea oxidation reaction (UOR) and hydrogen evolution reaction (HER) in a urea electrolysis cell was synthesized by electroplating a Ni-Fe alloy onto carbon felt, followed by phosphidation (P-NiFe@CF). The prepared P-NiFe@CF catalyst consisted of Ni5P4, NiP2, and FeP with 3D flower-like P-NiFe architecture on CF. P-NiFe@CF exhibited excellent electrocatalytic activity for the UOR (demanding only 1.44 V (vs. RHE) to achieve 200 mA cm −2), and for the HER with a low overpotential of 0.065 V (vs. RHE) at 10 mA cm−2, indicating its feasibility as a bifunctional catalyst electrode for urea electrolysis. A urea electrolysis cell with P-NiFe@CF as both the free-standing anode and cathode generated a current density of 10 mA cm−2 at a cell potential of 1.42 V (vs. RHE), which is considerably lower than that of water electrolysis, and also lower than previously reported values. The results indicate that the P-NiFe@CF catalyst electrodes can be used as free-standing bifunctional electrodes for urea electrolyzers.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Woo Hyun Yun ◽  
Gautam Das ◽  
Bohyeon Kim ◽  
Bang Ju Park ◽  
Hyon Hee Yoon ◽  
...  

AbstractA free-standing catalyst electrode for the urea oxidation reaction (UOR) and hydrogen evolution reaction (HER) in a urea electrolysis cell was synthesized by electroplating a Ni–Fe alloy onto carbon felt, followed by phosphidation (P-NiFe@CF). The prepared P-NiFe@CF catalyst consisted of Ni5P4, NiP2, and FeP with 3D flower-like P-NiFe architecture on CF. P-NiFe@CF exhibited excellent electrocatalytic activity for the UOR (demanding only 1.39 V (vs. RHE) to achieve 200 mA cm−2), and for the HER with a low overpotential of 0.023 V (vs. RHE) at 10 mA cm−2, indicating its feasibility as a bifunctional catalyst electrode for urea electrolysis. A urea electrolysis cell with P-NiFe@CF as both the free-standing anode and cathode generated a current density of 10 mA cm−2 at a cell potential of 1.37 V (vs. RHE), which is considerably lower than that of water electrolysis, and also lower than previously reported values. The results indicate that the P-NiFe@CF catalyst electrodes can be used as free-standing bifunctional electrodes for urea electrolyzers.


2018 ◽  
Vol 6 (10) ◽  
pp. 4346-4353 ◽  
Author(s):  
Wenxin Zhu ◽  
Zhihao Yue ◽  
Wentao Zhang ◽  
Na Hu ◽  
Zhengtao Luo ◽  
...  

Bimetallic iron–nickel sulfide nanowall arrays supported on nickel foam (Fe11.1%–Ni3S2/Ni foam) could efficiently drive both the overall water and urea electrolysis.


2018 ◽  
Vol 43 (15) ◽  
pp. 7299-7306 ◽  
Author(s):  
Chi Zhang ◽  
Yunchao Xie ◽  
Heng Deng ◽  
Cheng Zhang ◽  
Jheng-Wun Su ◽  
...  

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