Journal of the Ceramic Society of Japan
Online ISSN : 1348-6535
Print ISSN : 1882-0743
Feature: The 55th Symposium on Basic Science of Ceramics: Notes
Operando XAFS studies of supported copper oxides for catalytic ammonia combustion
Satoshi HINOKUMAYusuke KAWABATASaaya KIRITOSHIShun MATSUKIMasato MACHIDA
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Volume 125 (2017) Issue 10 Pages 770-772

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Abstract

Local structures around copper oxides (CuOx) supported on aluminum oxide borates (10A2B) during the NH3 combustion reaction were studied by operando XAFS. Although CuOx in as-prepared CuOx/10A2B at room temperature can be assigned to CuO, the CuO was partly reduced to Cu2O during NH3 combustion at 400°C. In contrast, CuAl2O4 was formed after thermal aging of CuOx/10A2B at 900°C for 100 h in air, local structures of which were preserved during NH3 combustion at 600°C.

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© 2017 The Ceramic Society of Japan
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