探测化学合成金纳米球和纳米棒的表面氧化

IF 2.2 4区工程技术 Q2 Chemistry

Gold Bulletin Pub Date : 2014-05-03 DOI:10.1007/s13404-014-0141-1

Blake J. Plowman, Nathan Thompson, Anthony P. O’Mullane

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引用次数: 7

摘要

在这项研究中，研究了市售金球和金棒的电化学行为，分别由羧酸和十六烷基三甲基溴化铵(CTAB)稳定。酸性电解液中的循环伏安行为与纳米棒由于电溶解过程而表现出异常的氧化行为明显不同。纳米球表现出典型的高缺陷表面反应，显著影响电催化活性。我们还研究了一种重复的电位循环清洗程序，该程序并没有提高纳米棒的活性，而是由于降低了表面缺陷的水平而导致金球失活。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Probing the surface oxidation of chemically synthesised gold nanospheres and nanorods

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Probing the surface oxidation of chemically synthesised gold nanospheres and nanorods

In this study, the electrochemical behaviour of commercially available gold spheres and rods stabilised by carboxylic acid and cetyl trimethyl ammonium bromide (CTAB) moieties, respectively, are investigated. The cyclic voltammetric behaviour in acidic electrolyte is distinctly different with the nanorods exhibiting unusual oxidative behaviour due to an electrodissolution process. The nanospheres exhibited responses typical of a highly defective surface which significantly impacted on electrocatalytic activity. A repetitive potential cycling cleaning procedure was also investigated which did not improve the activity of the nanorods and resulted in deactivating the gold spheres due to decreasing the level of surface defects.

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来源期刊

Gold Bulletin 工程技术-材料科学：综合

CiteScore

3.30

自引率

4.50%

发文量

审稿时长

3 months

期刊介绍： Gold Bulletin is the premier international peer reviewed journal on the latest science, technology and applications of gold. It includes papers on the latest research advances, state-of-the-art reviews, conference reports, book reviews and highlights of patents and scientific literature. Gold Bulletin does not publish manuscripts covering the snthesis of Gold nanoparticles in the presence of plant extracts or other nature-derived extracts. Gold Bulletin has been published over 40 years as a multidisciplinary journal read by chemists, physicists, engineers, metallurgists, materials scientists, biotechnologists, surface scientists, and nanotechnologists amongst others, both within industry and academia. Gold Bulletin is published in Association with the World Gold Council.