Synthesis, Purification, and Electrocatalytic Activity of Platinum Nanocatalyst with Globular Dendritic Structure
文献类型：期刊论文
| 作者 | Si Weifeng1,2; Li Huanqiao1; Yin Jie1; Li Shushuang1; Xie Yan1; Li Jia1; Lu Yang1,2; Liu Yuan1; Xing Yongheng2; Xu Huan2 |
| 刊名 | chinese journal of catalysis
 |
| 出版日期 | 2012-09-01 |
| 卷号 | 33期号:9页码:1601-1607 |
| 关键词 | globular dendritic structure electrocatalytic activity surfactant platinum nanocatalyst oxygen reduction methanol oxidation |
| 英文摘要 | a new pt nanocatalyst was synthesized by chemical reduction of k2ptcl4 by ascorbic acid in the presence of a non-ionic surfactant brij-35 (ch3(ch2)(10)ch2(och2ch2)(23)oh) in aqueous solution at room temperature. the obtained pt nanocatalyst was characterized by transmission electron microscopy, energy-dispersive x-ray spectroscopy (edx), x-ray powder diffraction, thermogravimetry (tg), and cyclic voltammetry (cv). the uniform pt nanocatalyst possesses a globular dendritic morphology with a mean diameter of 36.9 nm. the branches of the globular dendrites are 2-4 nm in diameter and 4-6 nm in length. a simple purification method with multiple water washing was developed to remove brij-35 and other by-products from the surface of pt nanocatalyst. tg, edx, and cv results show that the surface of pt nanocatalyst after purification is as clean as that of commercial pt black (fuel cell grade, 99.9%). compared with commercial pt black, pt nanocatalyst demonstrates a higher electrochemical active surface area and significantly improved electrocatalytic activity to oxygen reduction and methanol oxidation. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, applied ; chemistry, physical ; engineering, chemical |
| 研究领域[WOS] | chemistry ; engineering |
| 关键词[WOS] | methanol fuel-cells ; bimetallic nanodendrites ; facile synthesis ; nanoparticles ; reduction ; template ; anode |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000308972700024 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/143150]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian Natl Lab Clean Energy, Dalian 116023, Liaoning, Peoples R China 2.Liaoning Normal Univ, Coll Chem & Chem Engn, Dalian 116029, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Si Weifeng,Li Huanqiao,Yin Jie,et al. Synthesis, Purification, and Electrocatalytic Activity of Platinum Nanocatalyst with Globular Dendritic Structure[J]. chinese journal of catalysis,2012,33(9):1601-1607. |
| APA | Si Weifeng.,Li Huanqiao.,Yin Jie.,Li Shushuang.,Xie Yan.,...&Song Yujiang.(2012).Synthesis, Purification, and Electrocatalytic Activity of Platinum Nanocatalyst with Globular Dendritic Structure.chinese journal of catalysis,33(9),1601-1607. |
| MLA | Si Weifeng,et al."Synthesis, Purification, and Electrocatalytic Activity of Platinum Nanocatalyst with Globular Dendritic Structure".chinese journal of catalysis 33.9(2012):1601-1607. |
入库方式： OAI收割
来源：大连化学物理研究所
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