研究目的
Investigating the size-dependent optical properties of Ni nanoparticles and their role in enhancing the catalytic activity of CO2 photoreduction with methane.
研究成果
The study demonstrates that Ni LSPR dominates the optical property of smaller Ni nanoparticles, while interband transition plays a gradually increased role in improving the activities over larger Ni particles. This work provides a foundation for the application of Ni-based catalysts in photocatalytic/photothermal catalytic processes.
研究不足
The study focuses on the size-dependent optical properties of Ni nanoparticles and their catalytic performance under light irradiation, but does not explore the potential environmental impacts or scalability of the process.
1：Experimental Design and Method Selection:
Ni/Al2O3 catalysts and bulk Ni nanoparticles were synthesized with varied sizes of Ni particles. The catalytic activities were evaluated under light irradiation.
2：Sample Selection and Data Sources:
Ni(NO3)2·6H2O, metallic Ni, and Al2O3 were used as received.
3：List of Experimental Equipment and Materials:
X-ray diffraction (XRD), transmission electron microscope (TEM), UV–vis spectrophotometer, inductively coupled plasma optical emission spectrometry (ICP-OES), X-ray photoelectron spectroscopy (XPS).
4：Experimental Procedures and Operational Workflow:
Catalysts were prepared by wetness impregnation method, characterized, and evaluated in a fixed-bed flow type reactor under atmospheric pressure.
5：Data Analysis Methods:
The optical properties of Ni nanoparticles were simulated by Mie theory, and the catalytic performances were analyzed based on the conversion rates and yields.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
