Hierarchically nanostructured NiO-Co3O4 with rich interface defects for the electro-oxidation of 5-hydroxymethylfurfural
學年 108
學期 2
出版（發表）日期 2020-05-08
作品名稱 Hierarchically nanostructured NiO-Co3O4 with rich interface defects for the electro-oxidation of 5-hydroxymethylfurfural
作品名稱（其他語言）
著者 Y. Lu; C. L. Dong; Y. C. Huang; Y. Liu; Y. Li; N. Zhang; W. Chen; L. Zhou, H. Lin, Y. Zou; S. Wang
單位
出版者
著錄名稱、卷期、頁數 Science China Chemistry 63, p.980-986
摘要 Ni-based electrocatalysts with strong redox abilities are active for the electrochemical oxidation of 5-hydroxymethylfurfural (HMF). Interface engineering is an efficient way to modulate the electronic structure, tune the intermediate adsorption, and expose more active sites. Herein, we increased the concentration of interfacial sites with rich defects in a 3D hierarchical nanostructured NiO-Co3O4 electrocatalyst and investigated its catalytic performance for HMF electro-oxidation. The interface effect created abundant cation vacancies, modulated the electronic properties of Co and Ni atoms, and raised the oxidation state of Ni species. The NiO-Co3O4 catalysts show superb HMF oxidation activities with a low onset potential of 1.28 VRHE. Meanwhile, in-situ surface-selective vibrational spectroscopy of sum-frequency generation was performed to study the reaction pathway during the oxidation process on the electrocatalysts. The current study offers an efficient way to create cation vacancies and proves the decisive role of cation vacancies in catalyzing the HMF electro-oxidation.
關鍵字 interface effect;cation vacancies;in-situ vibrational spectroscopy;electrochemical biomass conversion;3D hierarchical nanostructure
語言 en_US
ISSN 1869-1870
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 USA
公開徵稿
出版型式 ,電子版
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