Hydrogen generation by steam reforming of methanol over copper-based catalysts for fuel cell applications

Lindström, Bård; Pettersson, Lars J.

doi:10.1016/s0360-3199(01)00034-9

Cited by 239 publications

(140 citation statements)

References 6 publications

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“…Cu/ZnO catalysts are originally designed for methanol synthesis, and are also often used for methanol steam reforming because of the high activity at low operating temperature in the range of 250 • C and 300 • C. However, they need pre-treatment in hydrogen to obtain full activity, which is not convenient in small scale onboard systems [13]. Other disadvantages of the Cu/ZnO catalysts include the possibility of pyrophoric behavior occurring when exposed to air and the high sensitivity to a few ppm of sulfur [14].…”

Section: Copper-based Catalystsmentioning

confidence: 99%

Review on Copper and Palladium Based Catalysts for Methanol Steam Reforming to Produce Hydrogen

Shuai

2017

Catalysts

104

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Abstract:Methanol steam reforming is a promising technology for producing hydrogen for onboard fuel cell applications. The methanol conversion rate and the contents of hydrogen, carbon monoxide and carbon dioxide in the reformate, significantly depend on the reforming catalyst. Copper-based catalysts and palladium-based catalysts can effectively convert methanol into hydrogen and carbon dioxide. Copper and palladium-based catalysts with different formulations and compositions have been thoroughly investigated in the literature. This work summarized the development of the two groups of catalysts for methanol steam reforming. Interactions between the activity components and the supports as well as the effects of different promoters were discussed. Compositional and morphological characteristics, along with the methanol steam reforming performances of different Cu/ZnO and Pd/ZnO catalysts promoted by Al 2 O 3 , CeO 2 , ZrO 2 or other metal oxides, were reviewed and compared. Moreover, the reaction mechanism of methanol steam reforming over the copper based and palladium based catalysts were discussed.

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Section: Copper-based Catalystsmentioning

confidence: 99%

Review on Copper and Palladium Based Catalysts for Methanol Steam Reforming to Produce Hydrogen

Shuai

2017

Catalysts

104

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“…In the literature, copper-based catalysts have received considerable attention for production of H 2 by SRM [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. Recent papers have discussed the POM reaction [22][23][24], as well as the combined process for production of H 2 [25][26][27][28][29][30][31][32][33][34][35][36][37][38].…”

Section: Introductionmentioning

confidence: 99%

Production of hydrogen from methanol over Cu/ZnO catalysts promoted by ZrO2 and Al2O3

Agrell

Birgersson

Boutonnet

et al. 2003

Journal of Catalysis

367

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“…Mais importante ainda, a presença de um promotor pode modificar o características de adsorção de superfície do catalisador, alterar a reducibilidade do catalisador ou, em certos casos, alterar o desempenho catalítico (LENARDA et al,2007). Geralmente a queima de metanol (CH 3 OH) ocorre inicialmente em temperatura bastante elevada sendo necessário um catalisador com estabilidade térmica para não haver desativação do mesmo no começo da reação catalítica (LINDSTROM; PETTERSSON, 2001) . Cada elemento Al,Cu e Fe com grau de pureza de 99,99 % que compõe a liga quasicristalina, contendo 10g, este procedimento de medição foi realizado numa balança analítica SHIMADZU.…”

Section: Reações Do Metanol Nos Quasecristaisunclassified

Análise da liga quasicristalina Al62,2Cu25,3Fe12,5 para a reforma a vapor do metanol

Jamshi¹,

Nascimento²,

Barbosa³

et al. 2015

Semina: Tech. Ex.

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Este trabalho mostra o bom desempenho do quasicristal Al 62,2 Cu 25,3 Fe 12,5 como catalisador em reações catalíticas. Este catalisador metálico sem ser lixiviado com ácido ou base, a seco com composição estequiométrica de Al 62,2 Cu 25,3 Fe 12,5 revelou dentre as reações ocorrida haver uma oxidação parcial; cuja formação dos produtos foram metanol, metanal+ácido metanóico, água e éter dimétilico. Para esta pesquisa utilizou de técnicas experimentais como a Difração de Raios-X (DRX) para acompanhar a evolução das fases da liga, a Microscopia Eletrônica de Varredura (MEV) que permite o estudo de microestrutura de superfície, e a Microscopia Eletrônica de Transmissão (MET), estuda a morfologia de fases internas, núcleos quasicristalinos e defeitos; os testes catalíticos para conversão e seletividade de metanol e produtos formados a partir deste material usado como catalisador. A atividade e estabilidade do catalisador de quasicristal para a reformação do vapor de metanol mostrou uma desempenho suficiente em comparação aos demais catalisadores. As espécies Fe e Cu altamente dispersa na camada homogênea do catalisador quasicristal aumentam a atividade catalítica e suprime a agregação de Cu partículas. Neste artigo, se propusemos em analisar o quasicristal, como um bom catalisador para ser usado na reação de reforma a vapor, com elevada atividade catalítica e a excelente estabilidade térmica. ResumoThis study shows a good performance of quasicrystal Al 62,2 Cu 25,3 Fe 12,5 as catalyst in catalytic reactions. This metal catalyst, without being leached with acid or base, with dry stoichiometric composition, Al 62,2 Cu 25,3 Fe 12,5 is revealed among the reactions which occurred to be a partial oxidation; and promoted the formation of products: methanol, methanal + methanoic acid, water and dimethyl ether. For this research were used such experimental techniques as X-ray Diffraction (XRD to follow the evolution of the alloy phase, the Scanning Electron Microscopy (SEM) that provides the study of surface microstructure, and Transmission Electron Microscopy (MET). All these techniques study the morphology of the internal phase, and defect a quasicrystalline nucleus. Catalytic tests of methanol conversion and selectivity intermediate products were obtained using this catalyst quasicrystal. The

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Hydrogen generation by steam reforming of methanol over copper-based catalysts for fuel cell applications

Cited by 239 publications

References 6 publications

Review on Copper and Palladium Based Catalysts for Methanol Steam Reforming to Produce Hydrogen

Review on Copper and Palladium Based Catalysts for Methanol Steam Reforming to Produce Hydrogen

Production of hydrogen from methanol over Cu/ZnO catalysts promoted by ZrO2 and Al2O3

Análise da liga quasicristalina Al62,2Cu25,3Fe12,5 para a reforma a vapor do metanol

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