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Title page for etd-0828114-144929


URN etd-0828114-144929 Statistics This thesis had been viewed 767 times. Download 0 times.
Author Kai- Wen Cheng
Author's Email Address No Public.
Department Materials Engineering
Year 2013 Semester 2
Degree Master Type of Document Master's Thesis
Language English Page Count 70
Title The Study of Pd and Au Coating on the Surface Polyethyleneimine (PEI)Modified Multi-Walled Carbon Nanotubes
Keyword
  • MWCNTs
  • Direct formic acid fuel cells
  • Polyethyleneimine
  • Polyethyleneimine
  • Direct formic acid fuel cells
  • MWCNTs
  • Abstract In recent years, studies indicate the Pd-based catalysts have shown higher catalytic activity for the electrooxidation of formic acid. A Pd based electrocatalyst was synthesized on Polyethyleneimine modified MWCNTs support in direct formic acid fuel cells.
    The results of FTIR indicate polyethyleneimine can modify the surface of MWCNTs. XRD analysis shows the contents of polyethyleneimine (PEI) can affect the nanoparticle size on the surface of MWCNTs in the Au and Pd system. According to FE-SEM results, Au, and AuPd nanoparticles have the best dispersion in the sample of 0.5wt% PEI modification of MWCNTs. Using the CV measurement in the AuPd catalyst system, the best result is 1.0P-MWCNTs. There is no perfect solid solution of Au and Pd in AuPd/1.0P-MWCNTs. While after 20th cycle of CV, the oxidation current is still retained about 256.3mA/mgPd.
    Advisor Committee
  • Hong-Ming Lin - advisor
  • Chung-Kwei, Lin - co-chair
  • Hwu,Yeu-Kuang  - co-chair
  • Wen-Chang Chen - co-chair
  • Yuh-jing Chiou - co-chair
  • Files indicate not accessible
    Date of Defense 2014-07-09 Date of Submission 2014-09-03


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