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| Main Authors: | , , , , , , , , |
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| Format: | Artículo Open Access |
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Wiley
2026
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| Subjects: | |
| Online Access: | https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cssc.70686 |
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| _version_ | 1867016355718365184 |
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| author | Bingxue Cheng Xiaoqian Bai Yining Wang Hiroya Ishikawa Norihito Sakaguchi Toru Murayama Tamao Ishida Mingyue Lin Guangli Xiu |
| author_facet | Bingxue Cheng Xiaoqian Bai Yining Wang Hiroya Ishikawa Norihito Sakaguchi Toru Murayama Tamao Ishida Mingyue Lin Guangli Xiu Bingxue Cheng Xiaoqian Bai Yining Wang Hiroya Ishikawa Norihito Sakaguchi Toru Murayama Tamao Ishida Mingyue Lin Guangli Xiu |
| collection | Wiley Open Access |
| contents | High‐Dimensional MoO x Promotes Meta‐Stable Mo 5+ Active Site Regeneration for Efficient H 2 O 2 Electrosynthesis Bingxue Cheng Xiaoqian Bai Yining Wang Hiroya Ishikawa Norihito Sakaguchi Toru Murayama Tamao Ishida Mingyue Lin Guangli Xiu ChemSusChem Electrocatalytic two‐electron oxygen reduction reaction (2e − ORR) is a green method for H 2 O 2 synthesis, but its application is limited by insufficient catalyst selectivity, active site depletion, and low productivity. By regulating the crystal structure, high‐dimensional rod‐like molybdenum oxide (HDS‐MoO x ) was successfully synthesized, which is a non‐traditional phase distinct from the thermodynamically stable α‐MoO 3 . This unique high‐dimensional architecture not only exposes abundant meta‐stable Mo 5+ active sites but also enables reversible Mo 5+ /Mo 6+ valence cycling to stabilize active‐site regeneration. Compared with the conventional α‐MoO 3 , HDS‐MoO x showed a significant improvement in ORR performance, with a H 2 O 2 Faraday efficiency of 97% and a high average yield of 875 mmol g cat −1 h −1 , which is more than twice that of transition metal catalysts reported in the literature. Mechanistic studies reveal that the high‐dimensional structure promotes oxygen vacancy formation, exposing Mo 5+ active sites for O 2 activation. Meanwhile, the reversible Mo 5+ /Mo 6+ valence cycling effectively mitigates site depletion, ensuring long‐term catalytic stability. This work proposed a novel strategy for the efficient electroproduction of H 2 O 2 , offering valuable insights into the design of high‐performance 2e − ORR catalysts. 10.1002/cssc.70686 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| doi_str_mv | 10.1002/cssc.70686 |
| format | Artículo Open Access |
| id | wiley_oa_10_1002_cssc_70686 |
| institution | Wiley Open Access |
| license_str_mv | http://onlinelibrary.wiley.com/termsAndConditions#vor |
| publishDate | 2026 |
| publisher | Wiley |
| record_format | wiley_oa |
| spellingShingle | High‐Dimensional MoO x Promotes Meta‐Stable Mo 5+ Active Site Regeneration for Efficient H 2 O 2 Electrosynthesis Bingxue Cheng Xiaoqian Bai Yining Wang Hiroya Ishikawa Norihito Sakaguchi Toru Murayama Tamao Ishida Mingyue Lin Guangli Xiu ChemSusChem High‐Dimensional MoO x Promotes Meta‐Stable Mo 5+ Active Site Regeneration for Efficient H 2 O 2 Electrosynthesis Bingxue Cheng Xiaoqian Bai Yining Wang Hiroya Ishikawa Norihito Sakaguchi Toru Murayama Tamao Ishida Mingyue Lin Guangli Xiu ChemSusChem Electrocatalytic two‐electron oxygen reduction reaction (2e − ORR) is a green method for H 2 O 2 synthesis, but its application is limited by insufficient catalyst selectivity, active site depletion, and low productivity. By regulating the crystal structure, high‐dimensional rod‐like molybdenum oxide (HDS‐MoO x ) was successfully synthesized, which is a non‐traditional phase distinct from the thermodynamically stable α‐MoO 3 . This unique high‐dimensional architecture not only exposes abundant meta‐stable Mo 5+ active sites but also enables reversible Mo 5+ /Mo 6+ valence cycling to stabilize active‐site regeneration. Compared with the conventional α‐MoO 3 , HDS‐MoO x showed a significant improvement in ORR performance, with a H 2 O 2 Faraday efficiency of 97% and a high average yield of 875 mmol g cat −1 h −1 , which is more than twice that of transition metal catalysts reported in the literature. Mechanistic studies reveal that the high‐dimensional structure promotes oxygen vacancy formation, exposing Mo 5+ active sites for O 2 activation. Meanwhile, the reversible Mo 5+ /Mo 6+ valence cycling effectively mitigates site depletion, ensuring long‐term catalytic stability. This work proposed a novel strategy for the efficient electroproduction of H 2 O 2 , offering valuable insights into the design of high‐performance 2e − ORR catalysts. 10.1002/cssc.70686 http://onlinelibrary.wiley.com/termsAndConditions#vor |
| title | High‐Dimensional MoO x Promotes Meta‐Stable Mo 5+ Active Site Regeneration for Efficient H 2 O 2 Electrosynthesis |
| topic | ChemSusChem |
| url | https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cssc.70686 |