Affiliation:
1. Department of Joint Surgery HongHui Hospital, Xi'an Jiaotong University Xi'an Shaanxi 710054 P. R. China
2. College of Chemical Engineering and Technology Taiyuan University of Science and Technology Taiyuan 030024 P. R. China
3. School of Electronics, Information and Electrical Engineering Shanghai Jiao Tong University Dong Chuan Road No. 800 Shanghai 200240 P. R. China
4. School of Chemistry and Molecular Engineering East China Normal University Shanghai 200241 China
Abstract
AbstractThe electrocatalytic preparation of hydrogen at different pH values not only achieves excellent device performance but also promotes the application of reactive oxygen species (ROS) clearance and hydrogen anti‐inflammation. However, it is difficult to develop materials that simultaneously achieve these excellent properties. Herein, the preparation of beaded necklace‐like Co9Se8 microspheres using a general and facile synthetic strategy is reported. The Co9Se8‐modified electrode has three applications: efficient water splitting for enhanced performance, ROS scavenging, and hydrogen anti‐inflammatory activity. Experiments, high‐angle‐annular‐dark‐field scanning transmission electron microscopy, and density functional theory calculations indicate that the reconstructed Co(OH)2 plays a vital role in the oxygen evolution reaction and that the transition from *O to *OOH is the actual rate‐determining step. The Co9Se8 material, with its unique beaded necklace‐like structure, exhibits exceptional hydrogen production capabilities in phosphate buffer solution (pH 7.4). In particular, hydrogen produce under neutral conditions can effectively reduce ROS levels and significantly inhibit inflammation‐related pathological processes, playing a unique antioxidant and anti‐inflammatory role at the cellular level. The obtained results indicate that the as‐synthesized Co9Se8 is more suitable for water splitting, ROS scavenging, and hydrogen anti‐inflammatory applications, outperforming other transition metal electrodes and rendering practical industrial and clinical applications.
Funder
National Natural Science Foundation of China
Subject
General Materials Science,Renewable Energy, Sustainability and the Environment