Effects of support materials and Ir loading on catalytic N2O decomposition properties
Effects of support materials and Ir loading on catalytic N2O decomposition properties
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DOI：
10.1016/j.catcom.2020.106208
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发表时间：
2021-01-15
影响因子：
3.7
通讯作者：
Sato, Kazuhiko
中科院分区：
文献类型：
--
作者：
Hinokuma, Satoshi;Iwasa, Takeshi;Sato, Kazuhiko
N2O是一种平流层臭氧消耗温室气体，具有全球变暖的潜力。N2O的催化分解是减少大气中气体排放量的最有前途和最经济的技术之一。本研究综合考察了载体材料和Ir负载量对催化剂催化N2O分解性能的影响。分解活性与Ir的分散度密切相关，用脉冲CO化学吸附估算Ir的分散度。此外，NO-TPD曲线和原位FTIR光谱表明，N2O/NOx的吸附性能与催化分解N2O的活性之间存在相关性。
N2O is a stratospheric ozone-depleting greenhouse gas with a global warming potential. The catalytic decom-position of N2O is one of the most promising and economical techniques to reduce the amount of the gas in the atmosphere. In the present study, the effects of support materials and Ir loading on the catalytic N2O decom-position properties were comprehensively investigated. The decomposition activity is closely associated with the Ir dispersion which is estimated using pulsed CO chemisorption. In addition, NO-TPD profiles and in situ FTIR spectra revealed a correlation between the adsorption properties of N2O/NOx and the catalytic N2O decompo-sition activity.