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Deactivation study of the BICOVOX catalysts used in low temperature steam reforming of ethanol for H2 production

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dc.contributor.author Roy, Banasri
dc.date.accessioned 2024-09-05T06:17:15Z
dc.date.available 2024-09-05T06:17:15Z
dc.date.issued 2021-10
dc.identifier.uri https://www.sciencedirect.com/science/article/pii/S0022369721002043
dc.identifier.uri http://dspace.bits-pilani.ac.in:8080/jspui/xmlui/handle/123456789/15440
dc.description.abstract The γ-BICOVOX, having high O2- mobility at low temperature (≤300 °C), might be a good catalyst for hydrogen production by low temperature steam reforming (LTSR) of ethanol. LTSR (at atmospheric pressure) of ethanol over Bi4(V0.90Co0.10)2O11-δ (BICOVOX) catalysts (synthesized by a solution combustion method and calcined at 400, 600 and 800 °C) has been investigated at the reaction conditions of 400 °C, H2O: EtOH molar ratio 23:1 and 0.35 ml min−1 feed flow rate. Catalysts remain active for the time period of ~30 h and after that start to deactivate. According to the XRD analysis γ- BICOVOX decomposes to BiVO4, Bi2O3, and Bi phases due to a reducing environment present inside the reactor. According to the XPS analysis, decrease in γ- BICOVOX amount diminishes the oxygen vacancy in the lattice. This probably causes significant decline in O2- mobility through the lattice and consequently carbon deposition occurs (derived from XPS, FESEM & DTGA) leading to an almost complete deactivation of the catalysts within 150 h. en_US
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.subject Chemical Engineering en_US
dc.subject Low temperature steam reforming en_US
dc.subject Ethanol en_US
dc.subject BICOVOX catalyst en_US
dc.subject Deactivation en_US
dc.subject Coke deposition en_US
dc.subject Phase decomposition en_US
dc.title Deactivation study of the BICOVOX catalysts used in low temperature steam reforming of ethanol for H2 production en_US
dc.type Article en_US


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