Ampholyte polystyrene spheres self-regulated deposition of noble metal nanoparticles for catalyst applications

Szu Ching Hsiao, Jinn Luh Ou, Mao Suan Huang, Chang Pin Chang, Yuh Sung, Ming Der Ger

研究成果: 雜誌貢獻文章同行評審

9 引文 斯高帕斯(Scopus)

摘要

The polystyrene (PS) spheres having dual functional groups were synthesized using emulsifier-free emulsion polymerization based on St/potassium persulfate/water system in the presence of V-50 as co-initiator. Fourier transform infrared (FTIR) confirms the presence of the sulfate and the amino groups on the surfaces of PS spheres. Transmission electron microscopy and X-ray photoelectron spectra revealed that the PS spheres were successfully deposited with catalytic palladium (Pd) or gold (Au) nanoparticles (NPs). The reduction of 4-nitroaniline to 4-phenylenediamine used as a model reaction was performed for catalysis studies and examined by ultraviolet. It was found that both Au and Pd PS dispersions show high catalytic activity. The Pd PS dispersion of 200 μl with only Pd content of 1.09 wt.% exhibits an excellent catalytic effect superior to the commercial Pd/C catalyst, i.e., less than 35 s taken for the completion of the reduction of 4-nitroaniline.
原文英語
頁(從 - 到)1611-1619
頁數9
期刊Colloid and Polymer Science
288
發行號16-17
DOIs
出版狀態已發佈 - 十一月 2010

ASJC Scopus subject areas

  • 物理與理論化學
  • 聚合物和塑料
  • 材料化學
  • 膠體和表面化學

指紋

深入研究「Ampholyte polystyrene spheres self-regulated deposition of noble metal nanoparticles for catalyst applications」主題。共同形成了獨特的指紋。

引用此