Hydrogen production from organics wastes using electrochemical method전기화학적 기법을 이용하여 유기성 폐자원들로부터 수소의 생산

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 452
  • Download : 0
An alternative method for producing hydrogen from available organic wastes is proposed. Hydrogen production from methanol electrolysis has been well-known and the same principle was applied to glycerol, formic acid, glucose, ammonia solution respectively. The performance and effectiveness investigation of electrocatalyst was carried out by linear sweep voltammetry(LSV) test and The stability of catalyst was studied by repetitive cyclic voltammetry test. Pt/$MnO_2$ with ratio of half and half not only showed the best performance for electrolysis of all feedstock except methanol electrolysis but also showed higher stability compared to Pt black. Electrolysis efficiency for hydrogen production was estimated and electrolysis of formic acid showed the best efficiency. Pt/$MnO_2$(5:5) also had an effect on electrolysis glucose and ammonia, their efficiency were relatively low. Total $H_2$ production costs were calculated by adding estimated electricity and feedstock costs. At the result, we concluded that glycerol is the best feedstock for electrochemical hydrogen production. Its estimated cost was competitive 2$/GEE considering hydrogen production cost from natural gas reforming is 2.5$/GEE. This result showed that by-product from biomass such as glycerol and formic acid could be promising feedstock for hydrogen production. Unfortunately, I could not explain why a synthesis catalyst shows outstanding performance even better than pure novel metal. I just expected it causes more adsorption of feedstock near anode in electrolyzer causing more electrochemical reactions occur. In order to find an answer, more professional experimental such a s X-ray diffraction should be carried out.
Advisors
Han, Jong-Inresearcher한종인researcher
Description
한국과학기술원 : 건설및환경공학과,
Publisher
한국과학기술원
Issue Date
2010
Identifier
455086/325007  / 020084007
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 건설및환경공학과, 2010.08, [ ⅵ. 69 p. ]

Keywords

electrochemical oxidation; electrocatalyst; Hydrogen; Electrolysis; organic wastes; 유기성 폐자원; 전기화학적 산화; 촉매; 수소; 전기분해

URI
http://hdl.handle.net/10203/30700
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=455086&flag=dissertation
Appears in Collection
CE-Theses_Master(석사논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0