Template-directed assembly of urchin-like CoSx/Co-MOF as an efficient bifunctional electrocatalyst for overall water and urea electrolysis

2020 ◽  
Vol 7 (14) ◽  
pp. 2602-2610 ◽  
Author(s):  
Huizhu Xu ◽  
Ke Ye ◽  
Kai Zhu ◽  
Jinling Yin ◽  
Jun Yan ◽  
...  
Keyword(s):  
Directed Assembly ◽  
Bifunctional Catalyst ◽  
Catalytic Performance ◽  
Bifunctional Electrocatalyst ◽  
Urea Electrolysis

The urchin-like CoSx/Co-MOF as a bifunctional catalyst has good catalytic performance toward UOR and HER.

Porous and amorphous cobalt hydroxysulfide core–shell nanoneedles on Ti-mesh as a bifunctional electrocatalyst for energy-efficient hydrogen production via urea electrolysis

2021 ◽  
Author(s):  
Yu Jiang ◽  
Shanshan Gao ◽  
Gongchen Xu ◽  
Xiaoming Song
Keyword(s):  
Hydrogen Production ◽  
High Activity ◽  
Energy Efficient ◽  
Bifunctional Catalyst ◽  
Core Shell ◽  
Bifunctional Electrocatalyst ◽  
Urea Electrolysis ◽  
Ti Mesh

Porous and amorphous CoSx(OH)y core–shell nanoneedles covered by numerous ultra-thin small nanosheets are synthesized successfully on Ti-mesh, and act as a high activity and stability bifunctional catalyst for urea electrolysis.

A bifunctional catalyst for efficient dehydrogenation and electro-oxidation of hydrazine

2018 ◽  
Vol 6 (37) ◽  
pp. 18050-18056 ◽  
Author(s):  
Jun Wang ◽  
Asim Khaniya ◽  
Lin Hu ◽  
Melanie J. Beazley ◽  
William E. Kaden ◽  
...  
Keyword(s):  
Bifunctional Catalyst ◽  
Catalytic Performance ◽  
Electro Oxidation

A Pt0.2Ni0.8 nanocatalyst has been developed and shows superior catalytic performance for both complete dehydrogenation and electro-oxidation of hydrazine.

Pt atoms on doped carbon nanosheets with ultrahigh N content as a superior bifunctional catalyst for hydrogen evolution/oxidation

2021 ◽  
Author(s):  
Zhen Zhang ◽  
Cheng Jiang ◽  
Ping Li ◽  
Qi Feng ◽  
Zhi liang Zhao ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Oxidation Reaction ◽  
Bifunctional Catalyst ◽  
Catalytic Performance ◽  
N Content ◽  
Carbon Nanosheets

Isolated Pt atoms on N-doped carbon nanosheets exhibit excellent bifunctional catalytic performance towards the hydrogen evolution/oxidation reaction (HER/HOR).

Direct synthesis of DME over bifunctional catalyst: surface properties and catalytic performance

2003 ◽  
Vol 252 (2) ◽  
pp. 243-249 ◽  
Author(s):  
Kunpeng Sun ◽  
Weiwei Lu ◽  
Fengyan Qiu ◽  
Shuwen Liu ◽  
Xianlun Xu
Keyword(s):  
Surface Properties ◽  
Catalyst Surface ◽  
Direct Synthesis ◽  
Bifunctional Catalyst ◽  
Catalytic Performance

scholarly journals Ni-Fe phosphide deposited carbon felt as free-standing bifunctional catalyst electrode for urea electrolysis

2021 ◽  
Author(s):  
Woo Hyun Yun ◽  
Gautam Das ◽  
Bohyeon Kim ◽  
Bang Ju Park ◽  
Hyon Hee Yoon ◽  
...  
Keyword(s):  
Water Electrolysis ◽  
Bifunctional Catalyst ◽  
Electrolysis Cell ◽  
Carbon Felt ◽  
Free Standing ◽  
Cell Potential ◽  
Urea Electrolysis ◽  
A Cell ◽  
A Current ◽  
Catalyst Electrode

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.

scholarly journals Ni–Fe phosphide deposited carbon felt as free-standing bifunctional catalyst electrode for urea electrolysis

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Woo Hyun Yun ◽  
Gautam Das ◽  
Bohyeon Kim ◽  
Bang Ju Park ◽  
Hyon Hee Yoon ◽  
...  
Keyword(s):  
Water Electrolysis ◽  
Bifunctional Catalyst ◽  
Electrolysis Cell ◽  
Carbon Felt ◽  
Free Standing ◽  
Cell Potential ◽  
Urea Electrolysis ◽  
A Cell ◽  
A Current ◽  
Catalyst Electrode

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.

scholarly journals Copper doped ceria porous nanostructures towards a highly efficient bifunctional catalyst for carbon monoxide and nitric oxide elimination

2015 ◽  
Vol 6 (4) ◽  
pp. 2495-2500 ◽  
Author(s):  
Shanlong Li ◽  
Nengli Wang ◽  
Yonghai Yue ◽  
Guangsheng Wang ◽  
Zhao Zu ◽  
...  
Keyword(s):  
Nitric Oxide ◽  
Carbon Monoxide ◽  
Co Oxidation ◽  
Selective Catalytic Reduction ◽  
Catalytic Reduction ◽  
Bifunctional Catalyst ◽  
Catalytic Performance ◽  
Doped Ceria ◽  
Reduction Of No ◽  
Porous Nanomaterials

Cu2+ doped CeO2 porous nanomaterials were synthesized by calcining CeCu–MOF nanocrystals. They exhibited a superior bifunctional catalytic performance for CO oxidation and selective catalytic reduction of NO.

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