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@article{Ruiz-Trejo:2015:10.1016/j.ces.2015.01.047,
author = {Ruiz-Trejo, E and Boldrin, P and Medley-Hallam, JL and Darr, J and Atkinson, A and Brandon, NP},
doi = {10.1016/j.ces.2015.01.047},
journal = {Chemical Engineering Science},
pages = {269--275},
title = {Partial oxidation of methane using silver/gadolinia-doped ceria composite membranes},
url = {http://dx.doi.org/10.1016/j.ces.2015.01.047},
volume = {127},
year = {2015}
}
TY - JOUR
AB - Methane was partially oxidised to CO using oxygen permeated through a 1 mm thick silver/Ce0.9Gd0.1O2−x (Ag/CGO) composite membrane operating at 500–700 °C with air at 1 bar pressure. The membranes were fabricated by sintering ultrafine nanoparticles of gadolinia-doped ceria (<5 nm) coated with silver using Tollens reaction. This unique combination led to dense composites with low content of silver (7 vol%), no reaction between the components and predominant metallic conductivity. When feeding 4% methane at 700 °C to a 1-mm thick Ag/CGO using Ni as reforming catalyst, the conversion reached 21% and the CO selectivity 92% with an estimated oxygen flux of 0.18 mL min−1 cm−2 (NTP). The samples were stable in carbon-containing atmospheres and under a large pO2 transmembrane pressure difference at temperatures below 700 °C for 48 h.
AU - Ruiz-Trejo,E
AU - Boldrin,P
AU - Medley-Hallam,JL
AU - Darr,J
AU - Atkinson,A
AU - Brandon,NP
DO - 10.1016/j.ces.2015.01.047
EP - 275
PY - 2015///
SN - 1873-4405
SP - 269
TI - Partial oxidation of methane using silver/gadolinia-doped ceria composite membranes
T2 - Chemical Engineering Science
UR - http://dx.doi.org/10.1016/j.ces.2015.01.047
UR - http://hdl.handle.net/10044/1/32859
VL - 127
ER -
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