Ruthenium-doped Ni(OH)2 to enhance the activity of methanol oxidation reaction and promote the efficiency of hydrogen production
The coupling of the hydrogen evolution reaction (HER) and methanol oxidation reaction (MOR) to produce clean hydrogen energy with value-added chemicals has attracted substantial attention. However, achieving high selectivity for formate production in the MOR and high faradaic efficiency for H2 evolu...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2024
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| Online Access: | https://hdl.handle.net/10356/179734 |
| _version_ | 1826112591181643776 |
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| author | Lin, Jiajie Chen, Jie Tan, Changhui Zhang, Yingzhen Li, Yancai |
| author2 | School of Chemistry, Chemical Engineering and Biotechnology |
| author_facet | School of Chemistry, Chemical Engineering and Biotechnology Lin, Jiajie Chen, Jie Tan, Changhui Zhang, Yingzhen Li, Yancai |
| author_sort | Lin, Jiajie |
| collection | NTU |
| description | The coupling of the hydrogen evolution reaction (HER) and methanol oxidation reaction (MOR) to produce clean hydrogen energy with value-added chemicals has attracted substantial attention. However, achieving high selectivity for formate production in the MOR and high faradaic efficiency for H2 evolution remain significant challenges. In light of this, this study constructs an Ru/Ni(OH)2/NF catalyst on nickel foam (NF) and evaluates its electrochemical performance in the MOR and HER under alkaline conditions. The results indicate that the synergistic effect of Ni(OH)2 and Ru can promote the catalytic activity. At an overpotential of only 42 mV, the current density for the HER reaches 10 mA cm-2. Moreover, in a KOH solution containing 1 M methanol, a potential of only 1.36 V vs. RHE is required to achieve an MOR current density of 10 mA cm-2. Using Ru/Ni(OH)2/NF as a bifunctional catalyst, employed as both the anode and cathode, an MOR-coupled HER electrolysis cell can achieve a current density of 10 mA cm-2 with a voltage of only 1.45 V. Importantly, the faradaic efficiency (FE) for the hydrogen production at the cathode and formate (HCOO-) production at the anode approaches 100%. Therefore, this study holds significant practical implications for the development of methanol electro-oxidation for formate-coupled water electrolysis hydrogen production technology. |
| first_indexed | 2024-10-01T03:09:34Z |
| format | Journal Article |
| id | ntu-10356/179734 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:09:34Z |
| publishDate | 2024 |
| record_format | dspace |
| spelling | ntu-10356/1797342024-08-23T15:31:37Z Ruthenium-doped Ni(OH)2 to enhance the activity of methanol oxidation reaction and promote the efficiency of hydrogen production Lin, Jiajie Chen, Jie Tan, Changhui Zhang, Yingzhen Li, Yancai School of Chemistry, Chemical Engineering and Biotechnology Engineering Faradaic efficiencies Hydrogen Energy The coupling of the hydrogen evolution reaction (HER) and methanol oxidation reaction (MOR) to produce clean hydrogen energy with value-added chemicals has attracted substantial attention. However, achieving high selectivity for formate production in the MOR and high faradaic efficiency for H2 evolution remain significant challenges. In light of this, this study constructs an Ru/Ni(OH)2/NF catalyst on nickel foam (NF) and evaluates its electrochemical performance in the MOR and HER under alkaline conditions. The results indicate that the synergistic effect of Ni(OH)2 and Ru can promote the catalytic activity. At an overpotential of only 42 mV, the current density for the HER reaches 10 mA cm-2. Moreover, in a KOH solution containing 1 M methanol, a potential of only 1.36 V vs. RHE is required to achieve an MOR current density of 10 mA cm-2. Using Ru/Ni(OH)2/NF as a bifunctional catalyst, employed as both the anode and cathode, an MOR-coupled HER electrolysis cell can achieve a current density of 10 mA cm-2 with a voltage of only 1.45 V. Importantly, the faradaic efficiency (FE) for the hydrogen production at the cathode and formate (HCOO-) production at the anode approaches 100%. Therefore, this study holds significant practical implications for the development of methanol electro-oxidation for formate-coupled water electrolysis hydrogen production technology. Published version The research was conducted with support from the National Natural Science Foundation of China (21905125) and the Natural Science Foundation of Fujian province in China (No. 2020J01802). 2024-08-20T01:49:45Z 2024-08-20T01:49:45Z 2024 Journal Article Lin, J., Chen, J., Tan, C., Zhang, Y. & Li, Y. (2024). Ruthenium-doped Ni(OH)2 to enhance the activity of methanol oxidation reaction and promote the efficiency of hydrogen production. RSC Advances, 14(26), 18695-18702. https://dx.doi.org/10.1039/d4ra02181a 2046-2069 https://hdl.handle.net/10356/179734 10.1039/d4ra02181a 38863823 2-s2.0-85195870095 26 14 18695 18702 en RSC Advances © 2024 The Author(s). Published by the Royal Society of Chemistry. This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. application/pdf |
| spellingShingle | Engineering Faradaic efficiencies Hydrogen Energy Lin, Jiajie Chen, Jie Tan, Changhui Zhang, Yingzhen Li, Yancai Ruthenium-doped Ni(OH)2 to enhance the activity of methanol oxidation reaction and promote the efficiency of hydrogen production |
| title | Ruthenium-doped Ni(OH)2 to enhance the activity of methanol oxidation reaction and promote the efficiency of hydrogen production |
| title_full | Ruthenium-doped Ni(OH)2 to enhance the activity of methanol oxidation reaction and promote the efficiency of hydrogen production |
| title_fullStr | Ruthenium-doped Ni(OH)2 to enhance the activity of methanol oxidation reaction and promote the efficiency of hydrogen production |
| title_full_unstemmed | Ruthenium-doped Ni(OH)2 to enhance the activity of methanol oxidation reaction and promote the efficiency of hydrogen production |
| title_short | Ruthenium-doped Ni(OH)2 to enhance the activity of methanol oxidation reaction and promote the efficiency of hydrogen production |
| title_sort | ruthenium doped ni oh 2 to enhance the activity of methanol oxidation reaction and promote the efficiency of hydrogen production |
| topic | Engineering Faradaic efficiencies Hydrogen Energy |
| url | https://hdl.handle.net/10356/179734 |
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