資料下載
Data download
熱門(mén)搜索:
多通道Gamry多通道多功能電化學(xué)工作站
eQCM 10MGamry 電化學(xué)石英晶體微天平
Reference3000Gamry電化學(xué)工作站
Reference3000多功能電化學(xué)工作站
Gamry電化學(xué)工作站
Reference 600+Gamry電化學(xué)工作站
Gamry旋轉(zhuǎn)圓盤(pán)電極
Reference600+電化學(xué)工作站
Interface 1000Gamry電化學(xué)工作站
Interface 1000美國(guó)進(jìn)口電化學(xué)工作站品牌
QCM-I高精度耗散型石英晶體微天平
IMPS/IMVSGamry太陽(yáng)能電池測(cè)試用電化學(xué)工作站
Interface 1010Interface 1010電化學(xué)工作站
Interface 5000Gamry 電化學(xué)工作站
RDE710Gamry旋轉(zhuǎn)圓盤(pán)/旋轉(zhuǎn)環(huán)盤(pán)電極電化學(xué)測(cè)試系統(tǒng)
Gamry氧還原
發(fā)布時(shí)間:2017/4/16
點(diǎn)擊次數(shù):3374
Introduction
This Application Note is the second in a series relating to the eQCM 10M™ and assumes that
you have read and understand the material covered in the Application Note, Basics of a
Quartz Crystal Microbalance.
The purpose of this Application Note is to show the reader a simple experiment where we
reduce Cu2+onto an Au electrode and then oxidize Cu back off. We will then use the result to
calculate a calibration factor for the crystal. Conversely, we will show you how to calculate the
molar mass of the species deposited using a calibration factor.
Each crystal has a theoretical calibration factor, however, under typical experimental
conditions, these calibration factors will vary slightly. We will use Cu2+ to calculate a
calibration factor which could then be used in subsequent experiments on the same crystal.
Cu2+ is reduced in a two electron reaction as shown below:
CuSO4(aq) + 2 e- →Cu(s) + SO42-(aq)
Our goal is to reduce Cu2+ onto an Au electrode, then use the frequency decrease and the
charge passed to calculate a calibration factor.