One-pot synthesis of hierarchical FeZSM-5 zeolites from natural aluminosilicates for selective catalytic reduction of NO by NH3.

One-pot synthesis of hierarchical FeZSM-5 zeolites from natural aluminosilicates for selective catalytic reduction of NO by NH3.
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天然硅铝酸盐一锅法合成分级 FeZSM-5 沸石用于 NH3 选择性催化还原 NO

DOI:
10.1038/srep09270
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发表时间:
2015-03-20
期刊:
影响因子:
4.6
通讯作者:
Bao X
Bao X
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Yue Y;Liu H;Yuan P;Yu C;Bao X

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铁改性ZSM-5沸石(FeZSM-5s)被认为是一种有前途的催化剂系统,可以减少氮氧化物排放,这是最重要的全球环境问题之一,但其合成面临着巨大的经济和环境挑战。在此,我们报告了一种廉价且绿色的策略,通过纳米级解聚重组方法从天然铝硅酸盐矿物中制造分级 FeZSM-5 沸石。我们的策略的特点是既不使用任何含铝、硅或铁的无机化学品,也不涉及任何介观模板和任何合成后修饰。与由具有相似Fe含量的无机化学品合成的传统FeZSM-5相比,所得具有高度分散的铁物种的分级FeZSM-5在NH3选择性催化还原NO中表现出优异的催化活性。
Iron-modified ZSM-5 zeolites (FeZSM-5s) have been considered to be a promising catalyst system to reduce nitrogen oxide emissions, one of the most important global environmental issues, but their synthesis faces enormous economic and environmental challenges. Herein we report a cheap and green strategy to fabricate hierarchical FeZSM-5 zeolites from natural aluminosilicate minerals via a nanoscale depolymerization-reorganization method. Our strategy is featured by neither using any aluminum-, silicon-, or iron-containing inorganic chemical nor involving any mesoscale template and any post-synthetic modification. Compared with the conventional FeZSM-5 synthesized from inorganic chemicals with the similar Fe content, the resulting hierarchical FeZSM-5 with highly-dispersed iron species showed superior catalytic activity in the selective catalytic reduction of NO by NH3.
DOI: 10.1021/cs3007999
发表时间: 2013-04-01
期刊: ACS CATALYSIS
影响因子: 12.9
作者:
Hammond, Ceri;Dimitratos, Nikolaos;Hutchings, Graham J.
通讯作者: Hutchings, Graham J.
DOI: 10.1006/jcat.1999.2674
发表时间: 1999-12-10
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期刊: GREEN CHEMISTRY
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DOI: 10.1021/ja9842262
发表时间: 1999-06-16
影响因子: 15
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