| 학회 |
한국고분자학회 |
| 학술대회 |
2013년 봄 (04/11 ~ 04/12, 대전컨벤션센터) |
| 권호 |
38권 1호 |
| 발표분야 |
대학원생 구두발표(영어발표, 발표10분) |
| 제목 |
Double Hydrophilic Block Copolymer Templated Au Nanoparticles with Enhanced Catalytic Activity toward Nitroarene Reduction |
| 초록 |
We present a facile method for synthesizing water-dispersible gold nanoparticles (Au NPs) using a double hydrophilic block copolymer (DHBC), poly(ethylene oxide)-block-poly(acrylic acid) (PEO-b-PAA), as a template and demonstrate their application in the reduction of nitroarenes. Selective interactions between a cationic gold precursor and the PAA block of the DHBC leads to the formation of micelles, which are subsequently transformed into Au NPs with an average diameter of 10 nm using a reducing agent. Furthermore, Au@DHBC NPs are found to be highly effective in catalyzing the reduction of a series of nitroarenes. Remarkably, the turnover frequency in the case of 4-nitrophenol using Au@DHBP NPs reaches 800 h-1, outperforming previously reported Au NP-based catalytic systems. We anticipate that the approach presented in this study will offer a new means to create a variety of water-stable catalytic materials in various fields of green chemistry. |
| 저자 |
서은용1, Jesi Kim2, 홍윤정3, 이대연2, 김병수1
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| 소속 |
1울산과학기술대, 2Univ. of Pennsylvania, 3경북대 |
| 키워드 |
double hydrophilic block copolymer; gold nanoparticles; nitroarenes reduction; catalyst
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| E-Mail |
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