基于的双单原子电催化剂用于酸盐还原反应
Cuizhu Ye1, Ziyi Guo2, Yongfang Zhou2
1School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; China-Singapore International Joint Research Institute, Guangzhou Knowledge City, Guangzhou 510663, China.
Journal of colloid and interface science
|August 23, 2024
概括
双重单原子催化剂被设计用于电化学酸盐降解,为酸盐修复提供了一条绿色路线. 催化剂对或具有很高的选择性,在模拟废水中具有很好的耐用性和效率.
科学领域:
- 电化学 电化学 电化学
- 材料科学 材料科学 材料科学
- 环境科学 环境科学
背景情况:
- 电化学酸盐降解 (NO3-RR) 提供了一种可持续的酸盐整治方法.
- 挑战包括酸盐的产生和的演变,限制了工艺效率.
- 开发选择性和耐用的催化剂对于有效的酸盐转化至关重要.
研究的目的:
- 设计和合成双单原子催化剂,以提高酸盐的减少.
- 为了研究催化性能和对和的选择性.
- 为了评估模拟废水处理中的催化剂耐用性和效率.
主要方法:
- 合理设计的双单原子催化剂,结合Ag,Bi,或Mo与Ni在添加碳纳米片 (NCNS).
- 电化学表征以评估酸盐降解活性,选择性和耐久性.
- 模拟的废水实验,以证明实际应用中酸盐去除.
主要成果:
- /NCNS催化剂选择性地产生了 (77.8%的选择性).
- NiAg/NCNS,NiBi/NCNS和NiMo/NCNS催化剂有利于生产 (47-48%的选择性).
- Ni/NCNS,NiBi/NCNS和NiAg/NCNS表现出极好的耐用性,在10小时后酸盐转化率高 (70-93%).
- 在模拟废水中,NiAg/NCNS在 -0.62 V 的9小时后,在模拟废水中实现了97.8%的酸盐去除.
结论:
- 在催化剂上的工程双原子位点有效调节酸盐减少路径.
- 开发的单原子催化剂在酸盐修复方面表现出高效率和耐用性.
- 这项工作提出了一种改善电化学酸盐减少过程的有希望的策略.
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