Can I read Modulation of Lewis and Brønsted acid centers with oxygen vacancies for Nb2O5 electrocatalysts: Towards highly efficient simultaneously electrochemical ozone and hydrogen peroxide production on EtoBox?
Modulation of Lewis and Brønsted acid centers with oxygen vacancies for Nb2O5 electrocatalysts: Towards highly efficient simultaneously electrochemical ozone and hydrogen peroxide production by Xiaoge Peng; Zhikang Bao; Shijie Zhang; Yuanan Li; Lei Ding; Huaijie Shi; Jia Liu; Xing Zhong; Xiaonian Li; Jianguo Wang is a Engineering article available to read on EtoBox.
What is Modulation of Lewis and Brønsted acid centers with oxygen vacancies for Nb2O5 electrocatalysts: Towards highly efficient simultaneously electrochemical ozone and hydrogen peroxide production about?
Assembling two desirable half-reactions of green oxidants hydrogen peroxide (H2O2) and ozone (O3) into efficient paired electrolysis is highly valuable in terms of efficiency and environmental-friendliness. However, rational design and construction of electrocatalysts with regulable active sites for the paired electrosynthesis of green oxidants of H2O2 and O3 remain a significant challenge. Herein, A new strategy was developed for tunning the active sites of pseudo-hexagonal centers (TT, Lewis acid sites) and orthogonal centers (T, Brønsted acid sites) in Mxene layered structure niobium pentoxide (Nb2O5) with abundant oxygen vacancy (OV) for the paired electrolysis of 2e- oxygen reduction reaction (ORR) and electrochemical ozone production (EOP). The TT-300 and T-400 electrocatalysts exhibited outstanding electrochemical activity of 2e- ORR (H2O2 selectively of 92% at 0.4 VRHE) and EOP (gaseous ozone FE of 13% at 50 mA cm−2), respectively. The excellent performance was mainly attributed to the TT-300 (Lewis acid sites) and T-400 (Brønsted acid sites) with abundant OV that improve the oxygen-containing intermediates formation of OOH* and deprotonation of water. In addition, the in-s
Who reads Modulation of Lewis and Brønsted acid centers with oxygen vacancies for Nb2O5 electrocatalysts: Towards highly efficient simultaneously electrochemical ozone and hydrogen peroxide production?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Xiaoge Peng; Zhikang Bao; Shijie Zhang; Yuanan Li; Lei Ding; Huaijie Shi; Jia Liu; Xing Zhong; Xiaonian Li; Jianguo Wang
- Publisher
- Elsevier BV
- Published
- 2023
- Language
- EN
- Field
- Engineering (Physical Sciences)