Competitive Transient Electrostatic Adsorption for In Situ Regeneration of Poisoned Catalyst
Competitive Transient Electrostatic Adsorption for In Situ Regeneration of Poisoned Catalyst
复制标题
竞争性瞬态静电吸附用于中毒催化剂的原位再生
DOI:
10.1002/cctc.201802055
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发表时间:
2019
期刊:
影响因子:
4.5
通讯作者:
Peng, Zhenmeng
中科院分区:
文献类型:
--
作者:
Pan, Yanbo;Shen, Xiaochen;Yao, Libo;Bentalib, Abdulaziz;Yang, Jinlong;Zeng, Jie;Peng, Zhenmeng
Catalyst deactivation by poisoning species is one important concern in catalysis processes and causes significant catalyst material and operation costs due to process shutdown and catalyst replacement. We report one new in situ catalyst regeneration method, which utilizes competitive electrostatic adsorption of charged ions which are generated with moderate DC voltage supply following the Townsend discharge mechanism to desorb poisoning species and the transient characteristic of electrostatically adsorbed ions to recover the active sites for catalysis. We demonstrate effectiveness of this new concept using HCOOH decomposition on Pt catalyst as model reaction and find the deactivated Pt regains the activity in presence of Ar+generation. DFT simulations and classical electrical discharge calculations show Ar+ions have significantly higher electrostatic adsorption energy than desorption energy of CO poisoning species that helps to desorb CO from Pt and generate more available active sites. This new in situ catalyst regeneration method, with convenient, noninvasive and low operation cost features, provides a promising strategy to overcome the challenges associated with current technologies that handle catalyst deactivation.
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影响因子:
4.7
作者:
D. Acharya;R. Hughes;M. Kennard;Y. P. Liu
通讯作者:
Y. P. Liu
影响因子:
5.3
作者:
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影响因子:
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作者:
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通讯作者:
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DOI:
10.1016/0022-1902(81)80486-1
发表时间:
1981
期刊:
Journal of Inorganic and Nuclear Chemistry
影响因子:
--
作者:
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通讯作者:
D. Sowerby
DOI:
10.1109/tdei.2004.1324355
发表时间:
2004
影响因子:
3.1
作者:
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通讯作者:
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