School of Chemistry and Chemical Engineering, Queens University Belfast, David Keir Building, Belfast, BT9 5AG, UK.
School of Chemical Engineering and Analytical Science, The University of Manchester, The Mill, Manchester, M13 9PL, UK.
Angew Chem Int Ed Engl. 2017 May 8;56(20):5579-5583. doi: 10.1002/anie.201612370. Epub 2017 Apr 12.
Non-thermal plasma activation has been used to enable low-temperature water-gas shift over a Au/CeZrO catalyst. The activity obtained was comparable with that attained by heating the catalyst to 180 °C providing an opportunity for the hydrogen production to be obtained under conditions where the thermodynamic limitations are minimal. Using in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS), structural changes associated with the gold nanoparticles in the catalyst have been observed which are not found under thermal activation indicating a weakening of the Au-CO bond and a change in the mechanism of deactivation.
非热等离子体激活已被用于在 Au/CeZrO 催化剂上实现低温水汽变换。所获得的活性与将催化剂加热至 180°C 时获得的活性相当，为在热力学限制最小的条件下获得氢气生产提供了机会。使用原位漫反射红外傅里叶变换光谱 (DRIFTS)，观察到催化剂中纳米金颗粒的结构变化，而在热激活下未发现这些变化，表明 Au-CO 键的减弱和失活机制的改变。
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