发明名称 |
Platinum-Based Electrocatalysts Synthesized by Depositing Contiguous Adlayers on Carbon Nanostructures |
摘要 |
High-surface-area carbon nanostructures coated with a smooth and conformal submonolayer-to-multilayer thin metal films and their method of manufacture are described. The preferred manufacturing process involves the initial oxidation of the carbon nanostructures followed by immersion in a solution with the desired pH to create negative surface dipoles. The nanostructures are subsequently immersed in an alkaline solution containing non-noble metal ions which adsorb at surface reaction sites. The metal ions are then reduced via chemical or electrical means and the nanostructures are exposed to a solution containing a salt of one or more noble metals which replace adsorbed non-noble surface metal atoms by galvanic displacement. Subsequent film growth may be performed via the initial quasi-underpotential deposition of a non-noble metal followed by immersion in a solution comprising a more noble metal. The resulting coated nanostructures may be used, for example, as high-performance electrodes in supercapacitors, batteries, or other electric storage devices.
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申请公布号 |
US2010177462(A1) |
申请公布日期 |
2010.07.15 |
申请号 |
US20100709836 |
申请日期 |
2010.02.22 |
申请人 |
BROOKHAVEN SCIENCE ASSOCIATES, LLC |
发明人 |
ADZIC RADOSLAV;HARRIS ALEXANDER |
分类号 |
H01G9/058;B01J23/56;B05D3/06;B05D5/12;C23C16/26;C25D5/54 |
主分类号 |
H01G9/058 |
代理机构 |
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