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[1]仇思敏,陶亚秋,严维涛,等.气氛条件对Pt-Mo2C催化剂脱硝性能的影响[J].南京工业大学学报(自然科学版),2018,40(03):12-17.[doi:10.3969/j.issn.1671-7627.2018.03.003]
 QIU Simin,TAO Yaqiu,YAN Weitao,et al.Effects of atmosphere conditions on catalytic de-NOx performance of Pt-Mo2C catalysts[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2018,40(03):12-17.[doi:10.3969/j.issn.1671-7627.2018.03.003]
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气氛条件对Pt-Mo2C催化剂脱硝性能的影响()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
40
期数:
2018年03期
页码:
12-17
栏目:
出版日期:
2018-05-20

文章信息/Info

Title:
Effects of atmosphere conditions on catalytic de-NOx performance of Pt-Mo2C catalysts
文章编号:
1671-7627(2018)03-0012-06
作者:
仇思敏陶亚秋严维涛夏忠怀潘志刚
南京工业大学 材料科学与工程学院,江苏 南京 210009
Author(s):
QIU SiminTAO YaqiuYAN WeitaoXIA ZhonghuaiPAN Zhigang
College of Materials Science and Engineering,Nanjing Tech University,Nanjing 210009,China
关键词:
Pt-Mo2C催化剂 脱硝 H2 Pt Mo2C
Keywords:
Pt-Mo2C catalyst denitrification hydrogen Pt Mo2C
分类号:
TQ426
DOI:
10.3969/j.issn.1671-7627.2018.03.003
文献标志码:
A
摘要:
采用程序升温碳化、等体积浸渍等方法制备不同的Pt-Mo2C催化剂,考察催化剂的催化脱硝性能。采用X线衍射仪(XRD)、比表面积测试仪、扫描电子显微镜(SEM)、X线光电子能谱仪(XPS)等手段表征催化剂的物理化学性能。以H2作为催化反应还原剂,在不同n(H2)/n(NO)及无氧或富氧条件下测试Pt-Mo2C的催化脱硝性能。结果表明:相比于掺杂Pt元素的Mo2C催化剂,直接负载氯铂酸钾的Mo2C催化剂效果最好,在无氧条件下n(H2)/n(NO)=1和5时,NO的转化率最高分别可达到60.3%和100%,富氧条件下NO的转化率最高分别可达到40.1%和92.1%。富氧条件降低了催化剂的催化性能,而较高的n(H2)/n(NO)有利于提升NO的转化率并拓宽反应温度区间。
Abstract:
The de-NOx performance over Pt-Mo2C catalysts prepared by temperature programmed carbonization and equal volume impregnation was investigated.The physicochemical properties of catalysts were characterized by X-ray diffraction(XRD),specific surface area measurement,scanning electron microscopy(SEM)and X-ray photoelectron spectroscopy(XPS).H2 was used as the reducing agent for the catalyzed denitrification reaction.The factors such as n(H2)/n(NO),the presence or absence of oxygen were studied.Results indicated that the Pt loaded Mo2C catalyst had the better catalytic performance than Pt doped Mo2C catalyst.The NO conversion with n(H2)/n(NO)=1 and 5 were respectively 60.3% and 100% without oxygen,while 40.1% and 92.1% on the condition of excess oxygen.The aerobic conditions could reduce the performance of the catalyst,while the higher n(H2)/n(NO)could increase the NO conversion and broaden the active temperature range.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2016-12-30
基金项目:江苏高校优势学科建设工程
作者简介:仇思敏(1992—),男,江苏南京人,硕士,主要研究方向为脱硝催化剂; 潘志刚(联系人),副研究员,E-mail:zg_pan@163.com.
引用本文:仇思敏,陶亚秋,严维涛,等.气氛条件对Pt-Mo2C催化剂脱硝性能的影响[J].南京工业大学学报(自然科学版),2018,40(3):12-17..
更新日期/Last Update: 2018-05-31