Journal
LANGMUIR
Volume 31, Issue 14, Pages 4341-4350Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.langmuir.5b00437
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Funding
- National Natural Science Foundation of China (NNSFC) [51003023, 51273182]
- Science and Technology Department of Zhejiang Province [2014C31053]
- Young Researchers Foundation of Zhejiang Provincial Top Key Academic Discipline of Chemical Engineering and Technology [ZYG2015003]
- State Key Laboratory of Chemical Engineering of Zhejiang University [SKL-ChE-15D02]
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Janus Pd/SiO2 nanocomposite particles (NCPs) were successfully synthesized through a combination of the solgel process of tetramethoxysilane in inverse miniemulsions and in situ reduction of Pd salts via a gas diffusion process of hydrazine. The formation of Pd nanoparticles (NPs) was verified by X-ray diffraction. The Janus morphology of the Pd/SiO2 NCPs was confirmed by microscopic observation. The Pd/SiO2 NCPs displayed a mesoporous structure. The content of Pd NPs in the NCPs could be conveniently adjusted by the K2PdCl4 loading. A formation mechanism of the Janus Pd/SiO2 NCPs was proposed. The mesoporous Janus Pd/SiO2 NCPs show good catalytic activity toward the reduction of p-nitrophenol with NaBH4.
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