一种基于Pd的等离子光催化剂,用于通过天线反应器机制固定
Yuanyuan Yang1, Henglei Jia1, Sihua Su2
1College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University Jinan 250014 China hljia@sdnu.edu.cn cyzhang@sdnu.edu.cn.
Chemical science
|October 13, 2023
概括
这项研究引入了一种新型的- (Pd/Ru) 天线反应器光催化剂,用于高效的 (N2) 光固定. 等离子Pd天线收集光线,驱动N2转化为氨的高产量.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 光催化作用的光催化
背景情况:
- 等离子金属纳米晶体对光催化有希望.
- (Pd) 纳米晶体的等离子体特性尚未得到充分理解.
- (N2) 光固定对于氨生产至关重要.
研究的目的:
- 为了研究Pd纳米晶体的等离子体特性.
- 为了构建一个新的等离子Pd/Ru天线反应器光催化剂.
- 使用这种催化剂来演示和优化N2光固定.
主要方法:
- 在Pd纳米八面体上可控制的Ru纳米阵列生长.
- 有限差异时间域 (FDTD) 模拟用于等离子体属性分析.
- 在水-糖混合物中进行折射率灵敏度测试.
- 在可见光和近红外 (NIR) 光下进行光催化N2光固定实验.
主要成果:
- 验证了Pd纳米八面体的等离子特性.
- 构建了具有增强光催化活性的Pd/Ru天线反应器纳米结构.
- 实现了最大的氨生产率为117.5 ± 15.0 μmol g-1 h-1.1.
- 在可见光和NIR光下证明有效的N2光固定.
结论:
- Pd/Ru天线反应器有效地驱动N2光固定.
- 等离子Pd天线产生热电子,而Ru反应器提供活跃点.
- 这项工作推进了基于Pd的等离子光催化剂和天线反应器设计.
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