Observation and Analysis of Staircase Response of Single Palladium Nanoparticle Collision on Gold Ultramicroelectrodes

被引：4
|
作者：
Rudakemwa, Hubert [1 ]
Kim, Ki Jun [1 ]
Park, Tae Eun [1 ]
Son, Hyeryeon [1 ]
Na, Jaedo [1 ]
Kwon, Seong Jung [1 ]
机构：
[1] Konkuk Univ, Dept Chem, 120 Neungdong Ro, Seoul 05029, South Korea
来源：
NANOMATERIALS | 2022年 / 12卷 / 18期
关键词：
palladium; single nanoparticle; collision; electrocatalytic amplification; staircase response; ELECTROCHEMICAL DETECTION; ELECTROCATALYTIC AMPLIFICATION; SURFACES; COPPER; BLIP;
D O I：
10.3390/nano12183095
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Collision (or impact) of single palladium nanoparticles (Pd NPs) on gold (Au), copper (Cu), nickel (Ni), and platinum (Pt) ultramicroelectrodes (UMEs) were investigated via electrocatalytic amplification method. Unlike the blip responses of previous Pd NP collision studies, the staircase current response was obtained with the Au UME. The current response, including collision frequency and peak magnitude, was analyzed depending on the material of the UME and the applied potential. Adsorption factors implying the interaction between the Pd NP and the UMEs are suggested based on the experimental results.
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页数：9
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