Construction of fluffy MnFe nanoparticles and their synergistic catalysis for selective catalytic reduction reaction at low temperature

催化作用 煅烧 吸附 纳米颗粒 大气温度范围 选择性催化还原 材料科学 比表面积 氧化还原 化学工程 无机化学 化学 纳米技术 物理化学 有机化学 工程类 物理 气象学
作者
Fei Zhao,Guodong Zhang,Zhicheng Tang,Fei Zha
出处
期刊:Fuel [Elsevier]
卷期号:322: 124185-124185 被引量:16
标识
DOI:10.1016/j.fuel.2022.124185
摘要

Mn-based catalysts had favorable low temperature SCR performance but it was restricted its practical application due to easy deactivation. Different proportions of Fe species were doped into Mn-MOFs as a precursor by a simple one-pot solvothermal method. A series of MnOx, Mn4FeOx, MnFeOx and MnFe4Ox catalysts with different structures were obtained by calcining under air. MnFeOx showed better catalytic activity and water resistance at low temperature. The NO conversion was 96% at 200 °C and kept above 85% in the range of 120–280 °C. Through a series of characterizations, it was found that manganese and iron species were highly dispersed in the MnFeOx catalyst, which was a vital factor for SCR reaction. Moreover, the MnFeOx catalyst not only possessed a large specific surface area and pore volume but also had a better reduction ability and abundant oxygen vacancies to adsorb and activate the reaction gases. Therefore, the catalyst possessed a satisfactory catalytic performance. More importantly, charging transfer between active manganese species and iron species in MnFeOx catalyst could effectively inhibit H2O poisoning and improve the stability of the catalyst. The results of in situ DRIFTs experiments showed that the low temperature NH3-SCR reaction of MnFeOx catalyst followed L-H mechanism. The effects of Fe doping content on the crystal structure of active species and SCR performance of manganese-based catalysts were revealed.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
三个哈卡完成签到,获得积分10
刚刚
ding应助浮生采纳,获得100
刚刚
luoye完成签到,获得积分10
刚刚
勤恳风华完成签到,获得积分10
刚刚
能干的cen完成签到 ,获得积分10
刚刚
DukeAn809完成签到,获得积分10
刚刚
杜青完成签到,获得积分10
刚刚
hino完成签到 ,获得积分10
1秒前
1秒前
wlnhyF完成签到,获得积分10
1秒前
不想洗碗完成签到,获得积分10
1秒前
子叶叶子完成签到,获得积分10
2秒前
卑微学术人完成签到 ,获得积分10
2秒前
英俊的铭应助zzhhcc采纳,获得10
2秒前
番豆完成签到,获得积分10
3秒前
3秒前
xingmeng发布了新的文献求助10
3秒前
cmd完成签到,获得积分10
3秒前
suibianba完成签到,获得积分10
4秒前
江南烟雨如笙完成签到 ,获得积分10
4秒前
青鱼完成签到,获得积分10
4秒前
xx发布了新的文献求助10
5秒前
小马甲应助小夏采纳,获得10
5秒前
Active完成签到,获得积分10
6秒前
Jun完成签到 ,获得积分10
6秒前
黄义军发布了新的文献求助10
7秒前
lumcy发布了新的文献求助10
7秒前
8秒前
Xinxxx完成签到,获得积分10
8秒前
饺子完成签到,获得积分10
9秒前
逍遥小书生完成签到 ,获得积分10
9秒前
DKL完成签到,获得积分10
9秒前
CipherSage应助tesla采纳,获得10
10秒前
ssss发布了新的文献求助10
10秒前
Agernon应助科研通管家采纳,获得10
11秒前
11秒前
研友_VZG7GZ应助科研通管家采纳,获得10
11秒前
Zn应助科研通管家采纳,获得10
11秒前
Zn应助科研通管家采纳,获得10
11秒前
sj完成签到,获得积分10
11秒前
高分求助中
Continuum Thermodynamics and Material Modelling 3000
Production Logging: Theoretical and Interpretive Elements 2700
Mechanistic Modeling of Gas-Liquid Two-Phase Flow in Pipes 2500
Structural Load Modelling and Combination for Performance and Safety Evaluation 800
Conference Record, IAS Annual Meeting 1977 610
Virulence Mechanisms of Plant-Pathogenic Bacteria 500
白土三平研究 500
热门求助领域 (近24小时)
化学 材料科学 生物 医学 工程类 有机化学 生物化学 物理 纳米技术 计算机科学 内科学 化学工程 复合材料 基因 遗传学 物理化学 催化作用 量子力学 光电子学 冶金
热门帖子
关注 科研通微信公众号,转发送积分 3556082
求助须知:如何正确求助?哪些是违规求助? 3131635
关于积分的说明 9392313
捐赠科研通 2831483
什么是DOI,文献DOI怎么找? 1556442
邀请新用户注册赠送积分活动 726605
科研通“疑难数据库(出版商)”最低求助积分说明 715912