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Yu SE, Su YL, Ni IC, Chuang YC, Hsu CC, Wu CI, Chen YS, Cheng IC, Chen JZ. Direct Current Pulse Atmospheric Pressure Plasma Jet Treatment on Electrochemically Deposited NiFe/Carbon Paper and Its Potential Application in an Anion-Exchange Membrane Water Electrolyzer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:14978-14989. [PMID: 38946167 PMCID: PMC11271009 DOI: 10.1021/acs.langmuir.4c01169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 06/20/2024] [Accepted: 06/20/2024] [Indexed: 07/02/2024]
Abstract
An atmospheric pressure plasma jet (APPJ) is used to process electrochemically deposited NiFe on carbon paper (NiFe/CP). The reactive oxygen and nitrogen species (RONs) of the APPJ modify the surface properties, chemical bonding types, and oxidation states of the material at the self-sustained temperature of the APPJ. The APPJ treatment further enhances the hydrophilicity and creates a higher disorder level in the carbon material. Moreover, the metal carbide bonds of NiFe/CP formed in the electrochemical deposition (ED) process are converted to metal oxide bonds after APPJ processing. The potential application of APPJ treatment on NiFe/CP in alkaline water electrolysis is demonstrated. With more oxygen-containing species and better hydrophilicity after APPJ treatment, APPJ-treated NiFe/CP is applied as the electrocatalyst for the oxygen evolution reaction (OER) in alkaline water electrolysis. APPJ-treated NiFe/CP is also used in a custom-made anion-exchange membrane water electrolyzer (AEMWE); this should contribute toward realizing the practical large-scale application of AEM for hydrogen production.
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Affiliation(s)
- Shuo-En Yu
- Graduate
School of Advanced Technology, National
Taiwan University, Taipei
City 106319, Taiwan
| | - Yu-Lun Su
- Institute
of Applied Mechanics, National Taiwan University, Taipei City 106319, Taiwan
| | - I-Chih Ni
- Graduate
Institute of Photonics and Optoelectronics and Department of Electrical
Engineering, National Taiwan University, Taipei City 106319, Taiwan
| | - Yi-Cheng Chuang
- Department
of Mechanical Engineering and Advanced Institute of Manufacturing
with High-Tech Innovations, National Chung
Cheng University, Minhsiung, Chiayi 621301, Taiwan
| | - Cheng-Che Hsu
- Department
of Chemical Engineering, National Taiwan
University, Taipei
City 106319, Taiwan
| | - Chih-I Wu
- Graduate
School of Advanced Technology, National
Taiwan University, Taipei
City 106319, Taiwan
- Graduate
Institute of Photonics and Optoelectronics and Department of Electrical
Engineering, National Taiwan University, Taipei City 106319, Taiwan
| | - Yong-Song Chen
- Department
of Mechanical Engineering and Advanced Institute of Manufacturing
with High-Tech Innovations, National Chung
Cheng University, Minhsiung, Chiayi 621301, Taiwan
| | - I-Chun Cheng
- Graduate
Institute of Photonics and Optoelectronics and Department of Electrical
Engineering, National Taiwan University, Taipei City 106319, Taiwan
| | - Jian-Zhang Chen
- Graduate
School of Advanced Technology, National
Taiwan University, Taipei
City 106319, Taiwan
- Institute
of Applied Mechanics, National Taiwan University, Taipei City 106319, Taiwan
- Advanced
Research Center for Green Materials Science and Technology, National Taiwan University, Taipei City 106319, Taiwan
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Wang YC, Yu SE, Su YL, Cheng IC, Chuang YC, Chen YS, Chen JZ. NiFe 2O 4 Material on Carbon Paper as an Electrocatalyst for Alkaline Water Electrolysis Module. MICROMACHINES 2023; 15:62. [PMID: 38258181 PMCID: PMC10819468 DOI: 10.3390/mi15010062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 12/12/2023] [Accepted: 12/27/2023] [Indexed: 01/24/2024]
Abstract
NiFe2O4 material is grown on carbon paper (CP) with the hydrothermal method for use as electrocatalysts in an alkaline electrolyzer. NiFe2O4 material is used as the anode and cathode catalysts (named NiFe(+)/NiFe(-) hereafter). The results are compared with those obtained using CP/NiFe as the anode and CP/Ru as the cathode (named NiFe)(+)/Ru(-) hereafter). During cell operation with NiFe(+)/Ru(-), the current density reaches 500 mA/cm2 at a cell voltage of 1.79 V, with a specific energy consumption of 4.9 kWh/m3 and an energy efficiency of 66.2%. In comparison, for NiFe(+)/NiFe(-), the current density reaches 500 mA/cm2 at a cell voltage of 2.23 V, with a specific energy consumption of 5.7 kWh/m3 and an energy efficiency of 56.6%. The Faradaic efficiency is 96-99%. With the current density fixed at 400 mA/cm2, after performing a test for 150 h, the cell voltage with NiFe(+)/Ru(-) increases by 0.167 V, whereas that with NiFe(+)/NiFe(-) decreases by only 0.010 V. Good, long-term stability is demonstrated.
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Affiliation(s)
- Ying-Chyi Wang
- Institute of Applied Mechanics, National Taiwan University, Taipei City 106319, Taiwan; (Y.-C.W.); (Y.-L.S.)
| | - Shuo-En Yu
- Graduate School of Advanced Technology, National Taiwan University, Taipei City 106319, Taiwan;
| | - Yu-Lun Su
- Institute of Applied Mechanics, National Taiwan University, Taipei City 106319, Taiwan; (Y.-C.W.); (Y.-L.S.)
| | - I-Chun Cheng
- Department of Electrical Engineering, Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei City 106319, Taiwan;
- Innovative Photonics Advanced Research Center (i-PARC), National Taiwan University, Taipei City 106319, Taiwan
| | - Yi-Cheng Chuang
- Department of Mechanical Engineering, Advanced Institute of Manufacturing with High-Tech Innovations, National Chung Cheng University, Chiayi County 621301, Taiwan; (Y.-C.C.); (Y.-S.C.)
| | - Yong-Song Chen
- Department of Mechanical Engineering, Advanced Institute of Manufacturing with High-Tech Innovations, National Chung Cheng University, Chiayi County 621301, Taiwan; (Y.-C.C.); (Y.-S.C.)
| | - Jian-Zhang Chen
- Institute of Applied Mechanics, National Taiwan University, Taipei City 106319, Taiwan; (Y.-C.W.); (Y.-L.S.)
- Graduate School of Advanced Technology, National Taiwan University, Taipei City 106319, Taiwan;
- Innovative Photonics Advanced Research Center (i-PARC), National Taiwan University, Taipei City 106319, Taiwan
- Advanced Research Center for Green Materials Science and Technology, National Taiwan University, Taipei City 106319, Taiwan
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