Effects of catalyst mass loading on electrocatalytic activity: An example of oxygen evolution reaction
The evaluation of the intrinsic activity of catalysts is the most basic in searching energy- and cost-efficient catalyst materials for various applications. The accurate determination of the intrinsic activity is essential for identifying efficient catalysts. While a huge number of studies of electr...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co. Ltd.
2021-07-01
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| Series: | Fundamental Research |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667325821000959 |
| _version_ | 1797976304813867008 |
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| author | Linghui Yu Shengnan Sun Haiyan Li Zhichuan J. Xu |
| author_facet | Linghui Yu Shengnan Sun Haiyan Li Zhichuan J. Xu |
| author_sort | Linghui Yu |
| collection | DOAJ |
| description | The evaluation of the intrinsic activity of catalysts is the most basic in searching energy- and cost-efficient catalyst materials for various applications. The accurate determination of the intrinsic activity is essential for identifying efficient catalysts. While a huge number of studies of electrocatalysis for various applications have been reported, the effects of electrode loading on the apparent intrinsic activity obtained experimentally have been rarely discussed. With a high mass loading on the electrode, not all the catalyst surfaces can be electrochemically active because not all the surfaces can be wetted by the electrolyte. The loading also affects the transport of electrons over the electrode as well as the transport of ions in the electrolyte, and thus affects the kinetics. These lead to the derivations of the apparent intrinsic activity from the real intrinsic activity. Herein, for better understanding the derivations, we evaluate and discuss the effects of electrode mass loading using oxygen evolution reaction as an example. |
| first_indexed | 2024-04-11T04:48:53Z |
| format | Article |
| id | doaj.art-7f6880c474ec40d6af6965ac13d4d0f9 |
| institution | Directory Open Access Journal |
| issn | 2667-3258 |
| language | English |
| last_indexed | 2024-04-11T04:48:53Z |
| publishDate | 2021-07-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | Fundamental Research |
| spelling | doaj.art-7f6880c474ec40d6af6965ac13d4d0f92022-12-27T04:42:01ZengKeAi Communications Co. Ltd.Fundamental Research2667-32582021-07-0114448452Effects of catalyst mass loading on electrocatalytic activity: An example of oxygen evolution reactionLinghui Yu0Shengnan Sun1Haiyan Li2Zhichuan J. Xu3School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, 639798, Singapore; Singapore-HUJ Alliance for Research and Enterprise, Campus for Research Excellence and Technological Enterprise (CREATE), NEW-CREATE Phase II, 138602, SingaporeSchool of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, 639798, Singapore; Beijing Innovation Center for Engineering Science and Advanced Technology (BIC-ESAT), Beijing Key Laboratory for Magnetoelectric Materials and Devices (BKL-MMD), School of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, ChinaSchool of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, 639798, SingaporeSchool of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, 639798, Singapore; Singapore-HUJ Alliance for Research and Enterprise, Campus for Research Excellence and Technological Enterprise (CREATE), NEW-CREATE Phase II, 138602, Singapore; Energy Research Institute@NTU, ERI@N, Interdisciplinary Graduate School, Nanyang Technological University, 639798, Singapore; Corresponding author.The evaluation of the intrinsic activity of catalysts is the most basic in searching energy- and cost-efficient catalyst materials for various applications. The accurate determination of the intrinsic activity is essential for identifying efficient catalysts. While a huge number of studies of electrocatalysis for various applications have been reported, the effects of electrode loading on the apparent intrinsic activity obtained experimentally have been rarely discussed. With a high mass loading on the electrode, not all the catalyst surfaces can be electrochemically active because not all the surfaces can be wetted by the electrolyte. The loading also affects the transport of electrons over the electrode as well as the transport of ions in the electrolyte, and thus affects the kinetics. These lead to the derivations of the apparent intrinsic activity from the real intrinsic activity. Herein, for better understanding the derivations, we evaluate and discuss the effects of electrode mass loading using oxygen evolution reaction as an example.http://www.sciencedirect.com/science/article/pii/S2667325821000959ElectrocatalysisWater splittingOxygen reduction reactionElectrode loading |
| spellingShingle | Linghui Yu Shengnan Sun Haiyan Li Zhichuan J. Xu Effects of catalyst mass loading on electrocatalytic activity: An example of oxygen evolution reaction Fundamental Research Electrocatalysis Water splitting Oxygen reduction reaction Electrode loading |
| title | Effects of catalyst mass loading on electrocatalytic activity: An example of oxygen evolution reaction |
| title_full | Effects of catalyst mass loading on electrocatalytic activity: An example of oxygen evolution reaction |
| title_fullStr | Effects of catalyst mass loading on electrocatalytic activity: An example of oxygen evolution reaction |
| title_full_unstemmed | Effects of catalyst mass loading on electrocatalytic activity: An example of oxygen evolution reaction |
| title_short | Effects of catalyst mass loading on electrocatalytic activity: An example of oxygen evolution reaction |
| title_sort | effects of catalyst mass loading on electrocatalytic activity an example of oxygen evolution reaction |
| topic | Electrocatalysis Water splitting Oxygen reduction reaction Electrode loading |
| url | http://www.sciencedirect.com/science/article/pii/S2667325821000959 |
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