QQ客服 官方微博 反馈留言

	Molecular-level insight into selective catalytic reduction of nox with nh3 to n-2 over a highly efficient bifunctional v-alpha-mnox catalyst at low temperature
	Xin, Ying1; Li, Hao1; Zhang, Nana1; Li, Qian1; Zhang, Zhaoliang1; Cao, Xiaoming2,3; Hu, P.2,3; Zheng, Lirong4; Anderson, James A.5
刊名	Acs catalysis
	2018-06-01
卷号	8期号:6页码:4937-4949
关键词	Nitrogen oxides Selective catalytic reduction Bifunctional catalyst Density functional theory Mechanism
ISSN号	2155-5435
DOI	10.1021/acscatal.8b00196
通讯作者	Zhang, zhaoliang(chm_zhangzl@ujn.edu.cn) ; Cao, xiaoming(xmcao@ecust.edu.cn) ; Anderson, james a.(j.anderson@abdn.ac.uk)
英文摘要	Selective catalytic reduction of nox with ammonia (scr) is not only an important model catalytic reaction but is also significant in terms of improving environmental air quality and human health. however, scr catalysts suffer from low activity and selectivity to n-2 at low temperature, which in part may be attributed to our limited understanding of the reaction mechanism. here, an unambiguous molecular-level mechanism is presented for an improved low-temperature scr activity using bifunctional catalysts composed of highly active oxides (mn2o3) for nh3 activation and highly selective vanadates (mn2v2o7) that promote n-2 formation. nh3 is initially activated by mn2o3 to form an nh2 intermediate. transfer of nh2 to mn2v2p7 then takes place, which facilitates the capture of gaseous no leading to the formation of nh2no over mn2v2o7, whereafter nh2no is efficiently converted to the preferred n-2 rather than the undesired byproduct, n2o. the proximity of the two components achieved via sol gel preparation plays a crucial role in the transfer of active intermediates.
WOS关键词	MANGANESE OXIDE CATALYSTS ; TOTAL-ENERGY CALCULATIONS ; TI AMORPHOUS OXIDES ; WAVE BASIS-SET ; ACTIVE-SITES ; HYBRID CATALYSTS ; NITRIC-OXIDE ; MNOX-CEO2 CATALYST ; REACTION-MECHANISM ; SUPERIOR CATALYST
WOS研究方向	Chemistry
WOS类目	Chemistry, Physical
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000434369600020
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2177518
专题	高能物理研究所
通讯作者	Zhang, Zhaoliang; Cao, Xiaoming; Anderson, James A.
作者单位	1.Univ Jinan, Shandong Prov Key Lab Fluorine Chem & Chem Mat, Sch Chem & Chem Engn, Jinan 250022, Shandong, Peoples R China 2.East China Univ Sci & Technol, Sch Chem & Mol Engn, Ctr Computat Chem, Shanghai 200237, Peoples R China 3.East China Univ Sci & Technol, Res Inst Ind Catalysis, Sch Chem & Mol Engn, Shanghai 200237, Peoples R China 4.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 5.Univ Aberdeen, Surface Chem & Catalysis Grp, Mat & Chem Engn, Aberdeen AB24 3UE, Scotland
推荐引用方式 GB/T 7714	Xin, Ying,Li, Hao,Zhang, Nana,et al. Molecular-level insight into selective catalytic reduction of nox with nh3 to n-2 over a highly efficient bifunctional v-alpha-mnox catalyst at low temperature[J]. Acs catalysis,2018,8(6):4937-4949.
APA	Xin, Ying.,Li, Hao.,Zhang, Nana.,Li, Qian.,Zhang, Zhaoliang.,...&Anderson, James A..(2018).Molecular-level insight into selective catalytic reduction of nox with nh3 to n-2 over a highly efficient bifunctional v-alpha-mnox catalyst at low temperature.Acs catalysis,8(6),4937-4949.
MLA	Xin, Ying,et al."Molecular-level insight into selective catalytic reduction of nox with nh3 to n-2 over a highly efficient bifunctional v-alpha-mnox catalyst at low temperature".Acs catalysis 8.6(2018):4937-4949.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。