Wen Yichan, Feng Youyou, Wei Jing, Zhang Ting, Cai Chengcheng, Sun Jiyi, Qian Xufang, Zhao Yixin
School of Environmental Science and Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University Shanghai 200240 P. R. China.
Institute of Analytical Chemistry and Instrument for Life Science, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University Xi'an 710049 P. R. China.
Chem Sci. 2024 Oct 11;15(45):18969-76. doi: 10.1039/d4sc05909c.
Electrosynthesis of HO through O reduction in seawater provides bright sight on the HO industry, which is a prospective alternative to the intensively constructed anthraquinone process. In this work, a photovoltaic-driven flow cell system is built for the electrosynthesis of HO in simulated seawater using N-doped carbon catalysts. The N-doped carbon catalysts with multiple N-doped carbon defects can achieve a record-high HO production rate of 34.7 mol g h under an industrially relevant current density of 500 mA cm and a long-term stability over 200 h in simulated seawater (0.5 M NaCl). When driven by the photovoltaic system, a HO solution of ∼1.0 wt% in 0.5 M NaCl is also obtained at about 700 mA cm. The obtained solution is applied for disinfection of mouse wounds, with a removal rate of 100% for and negligible toxicity to living organisms. It provides bright prospects for large-scale on-site HO production and on-demand disinfection.
通过海水中的氧还原电合成过氧化氢为过氧化氢工业带来了光明前景，这是密集构建的蒽醌法的一种有前景的替代方法。在这项工作中，构建了一个光伏驱动的流动电池系统，用于使用氮掺杂碳催化剂在模拟海水中电合成过氧化氢。具有多个氮掺杂碳缺陷的氮掺杂碳催化剂在500 mA cm²的工业相关电流密度下可实现创纪录的34.7 μmol g⁻¹ h⁻¹的过氧化氢产率，并且在模拟海水（0.5 M NaCl）中具有超过200小时的长期稳定性。当由光伏系统驱动时，在约700 mA cm²的电流密度下也可在0.5 M NaCl中获得约1.0 wt%的过氧化氢溶液。所获得的溶液用于小鼠伤口消毒，对金黄色葡萄球菌的去除率为100%，对生物体的毒性可忽略不计。它为大规模现场过氧化氢生产和按需消毒提供了光明前景。
