Stable Aqueous Dispersion of Graphene Nanosheets: Noncovalent Functionalization by a Polymeric Reducing Agent and Their Subsequent Decoration with Ag Nanoparticles for Enzymeless Hydrogen Peroxide Detection
文献类型：期刊论文
| 作者 | Liu S ; Tian JQ ; Wang L ; Li HL ; Zhang YW ; Sun XP |
| 刊名 | macromolecules
 |
| 出版日期 | 2010 |
| 卷号 | 43期号:23页码:10078-10083 |
| 关键词 | EXFOLIATED GRAPHITE OXIDE CARBON NANOTUBES METAL NANOPARTICLES SHEETS REDUCTION NANORIBBONS NANOCOMPOSITES SURFACTANT PHASE FILMS |
| ISSN号 | 0024-9297 |
| 通讯作者 | sun xp |
| 中文摘要 | an aqueous dispersion of graphene nanosheets (gns) has been successfully prepared via chemical reduction of graphene oxide (go) by hydrazine hydrate in the presence of poly[(2-ethyldimethylammonioethyl methacrylate ethyl sulfate)-co-(1-vinylpyrrolidone)] (pq11), a cationic polyelectrolyte, for the first time. the noncovalent functionalization of gn by pq11 leads to a gn dispersion that can be very stable for several months without the observation of any floating or precipitated particles. several analytical techniques including uv-vis spectroscopy, raman spectroscopy, x-ray diffraction (xrd), and x-ray photoelectron spectroscopy (xps) have been used to characterize the resulting gns. taking advantages of the fact that pq11 is a positively charged polymer exhibiting reducing ability, we further demonstrated the subsequent decoration of gn with ag nanoparticles (agnps) by two routes: (1) direct adsorption of preformed, negatively charged agnps; (2) in-situ chemical reduction of silver salts. it was found that such ag/gn nanocomposites exhibit good catalytic activity toward the reduction of hydrogen peroxide (h2o2), leading to an enzymeless sensor with a fast amperometric response time of less than 2 s. the linear detection range is estimated to be from 100 mu m to 40 mm (r = 0.996), and the detection limit is estimated to be 28 mu m at a signal-to-noise ratio of 3. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000284967000061 |
| 公开日期 | 2012-04-25 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/43254]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Liu S,Tian JQ,Wang L,et al. Stable Aqueous Dispersion of Graphene Nanosheets: Noncovalent Functionalization by a Polymeric Reducing Agent and Their Subsequent Decoration with Ag Nanoparticles for Enzymeless Hydrogen Peroxide Detection[J]. macromolecules,2010,43(23):10078-10083. |
| APA | Liu S,Tian JQ,Wang L,Li HL,Zhang YW,&Sun XP.(2010).Stable Aqueous Dispersion of Graphene Nanosheets: Noncovalent Functionalization by a Polymeric Reducing Agent and Their Subsequent Decoration with Ag Nanoparticles for Enzymeless Hydrogen Peroxide Detection.macromolecules,43(23),10078-10083. |
| MLA | Liu S,et al."Stable Aqueous Dispersion of Graphene Nanosheets: Noncovalent Functionalization by a Polymeric Reducing Agent and Their Subsequent Decoration with Ag Nanoparticles for Enzymeless Hydrogen Peroxide Detection".macromolecules 43.23(2010):10078-10083. |
入库方式： OAI收割
来源：长春应用化学研究所
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