Enhanced proton-feeding kinetics of metal-organic framework toward industrial-level H2O2 electrosynthesis for sustainable bleaching
學年 114
學期 1
出版（發表）日期 2025-11-19
作品名稱 Enhanced proton-feeding kinetics of metal-organic framework toward industrial-level H2O2 electrosynthesis for sustainable bleaching
作品名稱（其他語言）
著者 Fanpeng Cheng; Yingnan Liu; Zilin Zhao; Xiaoxuan Yang; Wanzhen Zheng; Bin Yang; Zhongjian Li; Qinghua Zhang; Chung-Li Dong; Lecheng Lei; Liming Dai; Yang Hou
單位
出版者
著錄名稱、卷期、頁數 Nature Communications 16, 10183
摘要 Eco-friendly electrocatalytic production of alkaline H2O2 via the two-electron oxygen reduction reaction offers a promising alternative to the conventional anthraquinone process, which is energy-intensive and poses explosion risks. However, the industrial adoption of this approach is hindered by sluggish proton-feeding kinetics of heterogeneous electrocatalysts, which restricts the achievable current densities. Herein, we develop Ni-based metal-organic frameworks with a bio-inspired B-coordination (B-NiBDC). The B-NiBDC shows Faradaic efficiency of ~90% for H2O2 electrosynthesis at 1000 mA cm−2, obtaining ~7.49 wt.% H2O2 alkaline solution for bleaching under urea oxidation-assisted energy-saving system. This has led to a significant increase in pulp brightness by 25-39 % (International Organization for Standardization, ISO). We propose that B-O-Ni motifs of B-NiBDC induce the formation of electron-deficient Ni active sites. Experiments and theoretical calculations elucidate that the electron-deficient Ni has accelerated water dissociation kinetics for proton-feeding to produce *OOH intermediate with suitable adsorption energy, boosting overall H2O2 electrosynthesis activity.
關鍵字
語言 en
ISSN 2041-1723
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度 是
國別 GBR
公開徵稿
出版型式 ,電子版
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/129491 )