A dynamic piezoelectric effect to promote electrosynthesis of hydrogen peroxide

Autor:	Hongyuan Yang, Jie Wu, Zhengran Chen, Kai Zou, Ruihong Liang, Zhenhui Kang, Prashanth W. Menezes, Ziliang Chen
Rok vydání:	2023
Předmět:	electrochemical synthesis polarization 540 Chemie und zugeordnete Wissenschaften Nuclear Energy and Engineering Renewable Energy Sustainability and the Environment ceramic H2O2 Environmental Chemistry hydrogen peroxide H2O2 Pollution oxygen reduction
Zdroj:	Energy & Environmental Science. 16:210-221
ISSN:	1754-5706 1754-5692
Popis:	Physical field modulation has been regarded as a promising approach to boost the performance of various electrocatalysts and has recently received notable attention. However, such a technique by coupling an external field to controllably enable efficient and green electrosynthesis of hydrogen peroxide H2O2 through a 2e amp; 8722; oxygen reduction reaction ORR has not been perceived so far. In order to address the feasibility of this method, a controllable piezoelectric strategy based on the response of intrinsic electric domains to the stimulation of fluid mechanical force was exploited effectively to induce local electric fields on the polarized ceramic catalyst surface during the dynamic ORR. By adjusting the polarization degree of ceramic catalysts, the strength of the local electric field could be accordingly modulated, thus tuning the coverage of OH amp; 8722; ions on the catalyst surface which is beneficial for optimizing the binding strength towards oxygen containing intermediates and alleviating the disproportionation of the peroxide product
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f897e4381125522d0106ac041f1429d5 https://doi.org/10.1039/d2ee02554j Zobrazit plný text záznamu