A general synthetic strategy for N, P co-doped graphene supported metal-rich noble metal phosphides for hydrogen generation
The exploitation of electrocatalysts with high activity and durability for HER is desirable for future energy systems, but it is still a challenge. NMPs have attracted increasing attentions, but the preparation process often needs toxic regents or dangerous reaction conditions. Herein, we develop a...
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KeAi Communications Co., Ltd.
2024-01-01
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| Series: | Green Energy & Environment |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468025722000760 |
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| author | Jingwen Ma Xiang Li Guangyu Lei Jun Wang Juan Wang Jian Liu Ming Ke Yang Li Chunwen Sun |
| author_facet | Jingwen Ma Xiang Li Guangyu Lei Jun Wang Juan Wang Jian Liu Ming Ke Yang Li Chunwen Sun |
| author_sort | Jingwen Ma |
| collection | DOAJ |
| description | The exploitation of electrocatalysts with high activity and durability for HER is desirable for future energy systems, but it is still a challenge. NMPs have attracted increasing attentions, but the preparation process often needs toxic regents or dangerous reaction conditions. Herein, we develop a general green method to fabricate metal-rich NMPs anchored on NPG through pyrolyzing DNA cross-linked complexes. The obtained Ru2P-NPG exhibits an ultrasmall overpotential of 7 mV at 10 mA cm−2 and ultralow Tafel slope of 33 mV dec−1 in 1.0 mol L−1 KOH, even better than that of commercial Pt/C. In addition, Ru2P-NPG also shows low overpotentials of 29 and 78 mV in 0.5 mol L−1 H2SO4 and 1.0 mol L−1 PBS, respectively. The superior activity can be attributed to the ultrafine dispersion of Ru2P nanoparticles for more accessible sites, more defects formed for abundant active sites, the two-dimensional plane structure for accelerated electron transfer and mass transport, as well as the regulation of electron distribution of the catalyst. Moreover, the synthetic method can also be applied to prepare other metal-rich noble metal phosphides (Pd3P-NPG and Rh2P-NPG), which also exhibits high activity for HER. This work provides an effective strategy for designing NMP-based electrocatalysts. |
| first_indexed | 2024-03-10T04:30:28Z |
| format | Article |
| id | doaj.art-0dfc5bb7187049819d443524f972c10f |
| institution | Directory Open Access Journal |
| issn | 2468-0257 |
| language | English |
| last_indexed | 2024-03-10T04:30:28Z |
| publishDate | 2024-01-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Green Energy & Environment |
| spelling | doaj.art-0dfc5bb7187049819d443524f972c10f2023-11-23T04:28:55ZengKeAi Communications Co., Ltd.Green Energy & Environment2468-02572024-01-0191152162A general synthetic strategy for N, P co-doped graphene supported metal-rich noble metal phosphides for hydrogen generationJingwen Ma0Xiang Li1Guangyu Lei2Jun Wang3Juan Wang4Jian Liu5Ming Ke6Yang Li7Chunwen Sun8School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, China; Corresponding authors.State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, ChinaLab of Advanced Nano-structures & Transfer Processes, Department of Chemical Engineering, Tianjin University, Tianjin, 300354, ChinaPetroChina Planning and Engineering Institute, Beijing, 100083, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, ChinaLab of Advanced Nano-structures & Transfer Processes, Department of Chemical Engineering, Tianjin University, Tianjin, 300354, China; Corresponding authors.School of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, China; Corresponding authors.The exploitation of electrocatalysts with high activity and durability for HER is desirable for future energy systems, but it is still a challenge. NMPs have attracted increasing attentions, but the preparation process often needs toxic regents or dangerous reaction conditions. Herein, we develop a general green method to fabricate metal-rich NMPs anchored on NPG through pyrolyzing DNA cross-linked complexes. The obtained Ru2P-NPG exhibits an ultrasmall overpotential of 7 mV at 10 mA cm−2 and ultralow Tafel slope of 33 mV dec−1 in 1.0 mol L−1 KOH, even better than that of commercial Pt/C. In addition, Ru2P-NPG also shows low overpotentials of 29 and 78 mV in 0.5 mol L−1 H2SO4 and 1.0 mol L−1 PBS, respectively. The superior activity can be attributed to the ultrafine dispersion of Ru2P nanoparticles for more accessible sites, more defects formed for abundant active sites, the two-dimensional plane structure for accelerated electron transfer and mass transport, as well as the regulation of electron distribution of the catalyst. Moreover, the synthetic method can also be applied to prepare other metal-rich noble metal phosphides (Pd3P-NPG and Rh2P-NPG), which also exhibits high activity for HER. This work provides an effective strategy for designing NMP-based electrocatalysts.http://www.sciencedirect.com/science/article/pii/S2468025722000760Noble metal phosphidesElectrocatalystDeoxyribonucleic acidHydrogen evolutionpH universal |
| spellingShingle | Jingwen Ma Xiang Li Guangyu Lei Jun Wang Juan Wang Jian Liu Ming Ke Yang Li Chunwen Sun A general synthetic strategy for N, P co-doped graphene supported metal-rich noble metal phosphides for hydrogen generation Green Energy & Environment Noble metal phosphides Electrocatalyst Deoxyribonucleic acid Hydrogen evolution pH universal |
| title | A general synthetic strategy for N, P co-doped graphene supported metal-rich noble metal phosphides for hydrogen generation |
| title_full | A general synthetic strategy for N, P co-doped graphene supported metal-rich noble metal phosphides for hydrogen generation |
| title_fullStr | A general synthetic strategy for N, P co-doped graphene supported metal-rich noble metal phosphides for hydrogen generation |
| title_full_unstemmed | A general synthetic strategy for N, P co-doped graphene supported metal-rich noble metal phosphides for hydrogen generation |
| title_short | A general synthetic strategy for N, P co-doped graphene supported metal-rich noble metal phosphides for hydrogen generation |
| title_sort | general synthetic strategy for n p co doped graphene supported metal rich noble metal phosphides for hydrogen generation |
| topic | Noble metal phosphides Electrocatalyst Deoxyribonucleic acid Hydrogen evolution pH universal |
| url | http://www.sciencedirect.com/science/article/pii/S2468025722000760 |
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