Hydration, CO2 stability and wireless electrochemical promotion studies on yttria-doped Ba (Ce, Zr) O3 perovskites
Hydration, CO2 stability and wireless electrochemical promotion studies on yttria-doped Ba (Ce, Zr) O3 perovskites
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氧化钇掺杂Ba(Ce,Zr)O3钙钛矿的水化、CO2稳定性及无线电化学促进研究
DOI：
10.1007/s11581-019-02836-6
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发表时间：
2019
期刊：
影响因子：
2.8
通讯作者：
Stavrakakis E
中科院分区：
文献类型：
--
作者：
Stavrakakis E
采用水溶胶-凝胶法制备了BaCe1−xYxO3−δ(BCY)和BaCe0.8−yZryY0.2O3−δ(BCZY)钙钛矿混合金属氧化物，考察了它们在电化学促进催化等中温催化中的适用性。用热重法研究了样品在co2环境下的水化能力和稳定性。基于这些性能的评价，选择bace0.6 zr0.2 y0.3 2o3−δ(BCZ20Y20)作为无线电化学促进Pt上CO氧化的膜载体。在双室反应器中，利用扫侧H2/H2O流动诱导促进物质供给反应器反应侧催化剂。在650°C的温度下，催化率可适度提高至10%，且这种促进效果是可逆的和可重复的。初步催化实验结果令人鼓舞，同时该膜在应用条件下的稳定性增强了BCZY膜在催化膜反应器中应用的候选性。
BaCe1 −xYxO3 −δ(BCY) and BaCe0.8 −yZryY0.2O3 −δ(BCZY) perovskite mixed metal oxides were synthesised by an aqueous sol-gel technique to be investigated for their suitability in intermediate-temperature catalytic applications such as Electrochemical Promotion of Catalysis. The hydration capacity and the stability under CO2environments of the samples were studied using thermogravimetric analysis. Based on the evaluation of these properties, BaCe0.6Zr0.2Y0.2O3 −δ(BCZ20Y20) was selected as the membrane support for wireless Electrochemical Promotion for CO oxidation on Pt. In a dual-chamber reactor, the use of H2/H2O flow in the sweep side induced promoting species supply to the catalyst in the reaction side of the reactor. Moderate promotion of the catalytic rate up to 10% was observed for temperatures up to 650 °C, while this promotional effect was reversible and repeatable. The encouraging preliminary catalytic experiments together with the membrane’s stability under the applied conditions reinforce the candidacy of BCZY membranes for intermediate-temperature applications in catalytic membrane reactors.
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影响因子：
3.9
作者：
S. V. Bhide;A. Virkar
通讯作者：
S. V. Bhide;A. Virkar
影响因子：
3.2
作者：
Masatsugu Oishi;Satoshi Akoshima;K. Yashiro;Kazuhisa Sato;J. Mizusaki;T. Kawada
通讯作者：
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影响因子：
4.5
作者：
M. Della Negra;Wei Zhang;N. Bonanos;S. Ricote
通讯作者：
S. Ricote
影响因子：
1.2
作者：
D. Tsiplakides;S. Balomenou
通讯作者：
S. Balomenou
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DOI：
--
发表时间：
2009
期刊：
Solid State Ionics 180
影响因子：
--
作者：
M. Oishi;et.al.
通讯作者：
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