Mechanism insight into the N-C polar bond and Pd-Co heterojunction for improved hydrogen evolution activity
Summary: Constructing platinum-like materials with excellent catalytic activity and low cost has great significance for hydrogen evolution reaction (HER) during electrolysis of water. Herein, palladium nanoparticles (NPs) deposition on the surface of Co NPs using nitrogen-doped carbon (NC) as substr...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-05-01
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| Series: | iScience |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589004224008423 |
| _version_ | 1827287404273205248 |
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| author | Chenliang Zhou Shaoyuan Shi Xingyu Zhang Yuting Sun Guan Peng Wenjing Yuan |
| author_facet | Chenliang Zhou Shaoyuan Shi Xingyu Zhang Yuting Sun Guan Peng Wenjing Yuan |
| author_sort | Chenliang Zhou |
| collection | DOAJ |
| description | Summary: Constructing platinum-like materials with excellent catalytic activity and low cost has great significance for hydrogen evolution reaction (HER) during electrolysis of water. Herein, palladium nanoparticles (NPs) deposition on the surface of Co NPs using nitrogen-doped carbon (NC) as substrate, denoted as N-ZIFC/CoPd-30, are manufactured and served as HER electrocatalysts. Characterization results and density functional theory calculations validate that Pd-Co heterojunctions with NC acting as “electron donators” promote the Pd species transiting to the electron-rich state based on an efficient electron transfer mechanism, namely the N-C polar bonds induced strong metal-support interaction effect. The electron-rich Pd sites are beneficial to HER. Satisfactorily, N-ZIFC/CoPd-30 have only low overpotentials of 16, 162, and 13 mV@-10 mA cm−2 with the small Tafel slopes of 98 mV/decade, 126 mV/decade, and 72 mV/decade in pH of 13, 7, and 0, respectively. The success in fabricating N-ZIFC/CoPd opens a promising path to constructing other platinum-like electrocatalysts with high HER activity. |
| first_indexed | 2024-04-24T10:57:46Z |
| format | Article |
| id | doaj.art-be39b50ea87440899b9cf216287e98a3 |
| institution | Directory Open Access Journal |
| issn | 2589-0042 |
| language | English |
| last_indexed | 2024-04-24T10:57:46Z |
| publishDate | 2024-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | iScience |
| spelling | doaj.art-be39b50ea87440899b9cf216287e98a32024-04-12T04:45:41ZengElsevieriScience2589-00422024-05-01275109620Mechanism insight into the N-C polar bond and Pd-Co heterojunction for improved hydrogen evolution activityChenliang Zhou0Shaoyuan Shi1Xingyu Zhang2Yuting Sun3Guan Peng4Wenjing Yuan5Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341119, People’s Republic of China; School of Rare Earths, University of Science and Technology of China, Hefei 230026, People’s Republic of ChinaGanjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341119, People’s Republic of China; School of Rare Earths, University of Science and Technology of China, Hefei 230026, People’s Republic of China; Jiangxi Province Key Laboratory of Cleaner Production of Rare Earths, Ganzhou 341119, People’s Republic of China; Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, People’s Republic of ChinaGanjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341119, People’s Republic of China; School of Rare Earths, University of Science and Technology of China, Hefei 230026, People’s Republic of ChinaGanjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341119, People’s Republic of China; School of Rare Earths, University of Science and Technology of China, Hefei 230026, People’s Republic of ChinaGanjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341119, People’s Republic of ChinaGanjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341119, People’s Republic of China; School of Rare Earths, University of Science and Technology of China, Hefei 230026, People’s Republic of China; Jiangxi Province Key Laboratory of Cleaner Production of Rare Earths, Ganzhou 341119, People’s Republic of China; Corresponding authorSummary: Constructing platinum-like materials with excellent catalytic activity and low cost has great significance for hydrogen evolution reaction (HER) during electrolysis of water. Herein, palladium nanoparticles (NPs) deposition on the surface of Co NPs using nitrogen-doped carbon (NC) as substrate, denoted as N-ZIFC/CoPd-30, are manufactured and served as HER electrocatalysts. Characterization results and density functional theory calculations validate that Pd-Co heterojunctions with NC acting as “electron donators” promote the Pd species transiting to the electron-rich state based on an efficient electron transfer mechanism, namely the N-C polar bonds induced strong metal-support interaction effect. The electron-rich Pd sites are beneficial to HER. Satisfactorily, N-ZIFC/CoPd-30 have only low overpotentials of 16, 162, and 13 mV@-10 mA cm−2 with the small Tafel slopes of 98 mV/decade, 126 mV/decade, and 72 mV/decade in pH of 13, 7, and 0, respectively. The success in fabricating N-ZIFC/CoPd opens a promising path to constructing other platinum-like electrocatalysts with high HER activity.http://www.sciencedirect.com/science/article/pii/S2589004224008423CatalysisPhysical chemistryElectrochemistry |
| spellingShingle | Chenliang Zhou Shaoyuan Shi Xingyu Zhang Yuting Sun Guan Peng Wenjing Yuan Mechanism insight into the N-C polar bond and Pd-Co heterojunction for improved hydrogen evolution activity iScience Catalysis Physical chemistry Electrochemistry |
| title | Mechanism insight into the N-C polar bond and Pd-Co heterojunction for improved hydrogen evolution activity |
| title_full | Mechanism insight into the N-C polar bond and Pd-Co heterojunction for improved hydrogen evolution activity |
| title_fullStr | Mechanism insight into the N-C polar bond and Pd-Co heterojunction for improved hydrogen evolution activity |
| title_full_unstemmed | Mechanism insight into the N-C polar bond and Pd-Co heterojunction for improved hydrogen evolution activity |
| title_short | Mechanism insight into the N-C polar bond and Pd-Co heterojunction for improved hydrogen evolution activity |
| title_sort | mechanism insight into the n c polar bond and pd co heterojunction for improved hydrogen evolution activity |
| topic | Catalysis Physical chemistry Electrochemistry |
| url | http://www.sciencedirect.com/science/article/pii/S2589004224008423 |
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