Methanol as an Oxygenated SOFC Fuel: An In Situ Optical Analysis of the Fuel Utilization Chemical Mechanism

Autor:	Michael B. Pomfret, Daniel A. Steinhurst, Jeffrey C. Owrutsky
Rok vydání:	2013
Předmět:	In situ chemistry.chemical_compound Materials science Methanol reformer chemistry Chemical engineering Methanol Direct-ethanol fuel cell Mechanism (sociology)
Zdroj:	ECS Transactions. 57:2903-2912
ISSN:	1938-6737 1938-5862
Popis:	Methanol utilization in solid oxide fuel cells (SOFCs) is studied with Fourier-transform IR emission spectroscopy and near-IR thermal imaging and the results are compared to the methane case. Adsorbed CO2 is identified on the anode surface of the SOFCs with both fuels. The stronger surface CO2 IR signal with methanol indicates more complete fuel oxidation. Methanol pyrolyzes to CO and H2, resulting in less carbon deposition than methane. The current dependence of surface and gas-phase species show methanol pyrolysis is more efficient at higher temperatures. These results provide clear mechanistic insight into fuel breakdown and oxidation in SOFCs.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::896f6b2a8ceb5514cd4420cd00de023a https://doi.org/10.1149/05701.2903ecst Zobrazit plný text záznamu