| Methanobactin-Mediated Synthesis of Gold Nanoparticles Supported over Al2O3 toward an Efficient Catalyst for Glucose Oxidation | |
| Department | OSSO国家重点实验室 |
Xin JY(辛嘉英)1,2; Lin, Kai1; Wang, Yan1; Xia CG(夏春谷)2 ; Xin JY(辛嘉英)
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| 2014 | |
| Source Publication | International Journal of Molecular Sciences
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| ISSN | 1422-0067 |
| Volume | 15Issue:12Pages:21603-21620 |
| Abstract | Methanobactin (Mb) is a copper-binding peptide that appears to function as an agent for copper sequestration and uptake in methanotrophs. Mb can also bind and reduce Au(III) to Au(0). In this paper, Au/Al2O3 catalysts prepared by a novel incipient wetness-Mb-mediated bioreduction method were used for glucose oxidation. The catalysts were characterized, and the analysis revealed that very small gold nanoparticles with a particle size <4 nm were prepared by the incipient wetness-Mb-mediated bioreduction method, even at 1.0% Au loading (w/w). The influence of Au loading, calcination temperature and calcination time on the specific activity of Au/Al2O3 catalysts was systematically investigated. Experimental results showed that decomposing the Mb molecules properly by calcinations can enhance the specific activity of Au/Al2O3 catalysts, though they acted as reductant and protective agents during the catalyst preparation. Au/Al2O3 catalysts synthesized by the method exhibited optimum specific activity under operational synthesis conditions of Au loading of 1.0 wt % and calcined at 450 °C for 2 h. The catalysts were reused eight times, without a significant decrease in specific activity. To our knowledge, this is the first attempt at the preparation of Au/Al2O3 catalysts by Mb-mediated in situ synthesis of gold nanoparticles. |
| Keyword | Methanobactin Bioreduction Glucose Oxidation Gold Nanoparticles Au/al2o3 Catalysts |
| Subject Area | 物理化学与绿色催化 |
| DOI | 10.3390/ijms151221603 |
| Funding Organization | the National Natural Science Foundation of China (20873034;21073050);Heilongjiang Provincial Funds for Distinguished Young Scientists (JC201106) |
| Indexed By | SCI |
| If | 2.862 |
| Language | 英语 |
| Funding Project | 均相催化课题组 |
| compositor | 第二作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/19290 |
| Collection | 羰基合成与选择氧化国家重点实验室（OSSO） |
| Corresponding Author | Xin JY(辛嘉英) |
| Affiliation | 1.Harbin Univ Commerce, Key Lab Food Sci & Engn, Harbin 150076, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China |
| Recommended Citation GB/T 7714 | Xin JY,Lin, Kai,Wang, Yan,et al. Methanobactin-Mediated Synthesis of Gold Nanoparticles Supported over Al2O3 toward an Efficient Catalyst for Glucose Oxidation[J]. International Journal of Molecular Sciences,2014,15(12):21603-21620. |
| APA | Xin JY,Lin, Kai,Wang, Yan,Xia CG,&辛嘉英.(2014).Methanobactin-Mediated Synthesis of Gold Nanoparticles Supported over Al2O3 toward an Efficient Catalyst for Glucose Oxidation.International Journal of Molecular Sciences,15(12),21603-21620. |
| MLA | Xin JY,et al."Methanobactin-Mediated Synthesis of Gold Nanoparticles Supported over Al2O3 toward an Efficient Catalyst for Glucose Oxidation".International Journal of Molecular Sciences 15.12(2014):21603-21620. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| ijms-15-21603.pdf（824KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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