氧化的异构接口工程用于整体的水分离
Renjith Nadarajan1, Anju V Gopinathan1, Naduvile Purayil Dileep1
1School of Physics, Indian Institute of Science Education and Research Thiruvananthapuram, Maruthamala PO, Thiruvananthapuram, Kerala 695551, India. shaiju@iisertvm.ac.in.
高活性的氧化 (cobalt molybdenum suboxides) 增强了水的分裂,以实现可持续的生产. 调节Co/Mo比率并创建异质接口可以提高电催化活性和耐用性.
科学领域:
- 材料科学 材料科学 材料科学
- 电化学 电化学 电化学
- 可持续能源 可持续能源
背景情况:
- 地球上丰富的电催化剂对于高效的性水电解至关重要.
- 开发用于演化反应 (HER) 和氧演化反应 (OER) 的双功能催化剂是整体水分裂的关键.
研究的目的:
- 为了增强聚酸的双功能电催化活性,用于整体的水分裂.
- 研究对比率和相调节异面接口对催化性能的影响.
主要方法:
- 微波辅助合成以产生具有不同Co/Mo比率的合金氧化物样本.
- 合成条件的修改,以创建涉及Ni泡上多个聚亚氧化相 (CoO/CoMoO3/Co2Mo3O8) 的异构接口.
- 详细的电化学研究,以评估HER和OER活动和整体水分裂效率.
主要成果:
- 调节Co/Mo比率和接口结构显著影响双功能电催化活性.
- 优化的氧化子氧化催化剂 (CMO-1.25) 显示出高活性和优异的耐用性 (>500小时) 在整体水分裂.
- 用CMO-1.25制造的性电解器实现了高电流密度 (220 mA cm-2 @1.6 V和670 mA cm-2 @1.8 V),具有良好的长期稳定性.
结论:
- 合成和接口工程的氧化亚氧化物是提高双功能电催化剂的有效策略.
- 开发的催化剂在通过性水电解来可持续产生的实际应用方面显示出巨大的前景.
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