氯铂酸存在下方波电势脉冲处理铂电极制备枝晶铂
首发时间:2011-03-14
摘要:光滑铂电极在0.1 M 硫酸 + 10 mM 氯铂酸中经方波电势脉冲处理,可在电极表面制备出均匀的铂枝晶,并探究了时间、方波频率、电势范围和电解液组成和浓度等因素对铂枝晶生长的影响。所制备出的枝晶铂具有多种功能:对乙醇的电催化氧化表现出较高的活性;在修饰单层硫醇后具有超疏水性;可作为表面增强拉曼散射的基底。
关键词: 方波电势脉冲 枝晶铂 电催化 超疏水 表面增强拉曼散射。
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Synthesis of dendritic platinum by square wave potential pulses in the presence of hexachloroplatinic acid
Abstract:Multifunctional dendritic platinum has been facilely fabricated by treating the smooth platinum electrode with square wave potential pulses (SWPPs) in 0.1 M sulfuric acid + 10 mM hexachloroplatinic acid. The influence of time, potential range, square wave frequency and the electrolyte on the dendrite formation has been discussed. The as-prepared dendritic platinum has strong surface-enhanced Raman scattering effect (SERS), high electrocatalytic activity toward the oxidation of ethanol, and superhydrophobicity after decorating a monolayer of n-dodecanethiol.
Keywords: square wave potential pulse dendritic platinum electrocatalysis superhydrophobicity SERS
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