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Stable acidic H2O2 electrosynthesis via in situ Ti-N bridging sites
Yuxiang Zhang1, Shan Ding1,2, Sheng Chen1
1Key Laboratory for Soft Chemistry and Functional Materials (Ministry of Education), School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Ministry of Education, Nanjing, 210094, China. 18068841629@njust.edu.cn.
None:
Acidic hydrogen peroxide electrosynthesis suffers from catalyst instability issues. We develop the MIL-125@Ppy catalyst, achieving a high H2O2 electrosynthesis yield rate of 69.5 mol gcat-1 h-1 (faradaic efficiency of 82.2%) at pH = 1 for operation more than 50 h. Spectroscopic evidence confirms that in situ-formed Ti-N bridge sites mediate the stabilization of *OOH, enabling the selective and stable two-electron pathway.
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