Skip to Main Content
 

Global Search Box

 
 
 
 

Files

File List


Thesis_Zhehao Zhang.pdf (3.29 MB)

ETD Abstract Container

Abstract Header

Palladium Voltammetric Microelectrode as pH Sensor in an Micro Electrochemical Cell

Zhang, Zhehao
http://rave.ohiolink.edu/etdc/view?acc_num=case1496862043661465

Abstract Details

, Master of Sciences (Engineering), Case Western Reserve University, Biomedical Engineering.
pH-stat is a pH control system that is used for studying biochemical reactions such as enzyme assays. Electrochemical micro-pH-stat based on the rotating sample system as well as microfabrication techniques have been developed in our laboratory previously, with an unmet need of reliable micro pH electrode. In this work we evaluate the Pd electrode using a novel voltammetric pH sensing technique. Pd disk microelectrodes were fabricated and the electrodes showed linear pH reseponse and super-Nerstian sensitivity (~160 mV/pH) at pH 6-7.15 in bulk solution. A micro electrochemical cell combining voltammetric pH sensing and coulometric titration was designed and constructed, together with the analog circuits and control software. The Pd electrodes, however, showed elusive pH response upon further testing in the micro electrochemical cell. In the future a different type of material and/or method may need to be considered for pH sensing in the micro-pH-stat.
Miklos Gratzl (Advisor)
Christian Zorman (Committee Member)
Steven Eppell (Committee Member)
Biomedical Engineering
pH-stat; palladium electrode; voltammetry

Recommended Citations

Citations

  • Zhang, Z. (n.d.). Palladium Voltammetric Microelectrode as pH Sensor in an Micro Electrochemical Cell [Master's thesis, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1496862043661465

    APA Style (7th edition)

  • Zhang, Zhehao. Palladium Voltammetric Microelectrode as pH Sensor in an Micro Electrochemical Cell. Case Western Reserve University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1496862043661465.

    MLA Style (8th edition)

  • Zhang, Zhehao. "Palladium Voltammetric Microelectrode as pH Sensor in an Micro Electrochemical Cell." Master's thesis, Case Western Reserve University. Accessed NOVEMBER 24, 2024. http://rave.ohiolink.edu/etdc/view?acc_num=case1496862043661465

    Chicago Manual of Style (17th edition)

case1496862043661465
296
© , all rights reserved.
This open access ETD is published by Case Western Reserve University School of Graduate Studies and OhioLINK.