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大孔SmMnO莫来石负载的高度分散钯用于CO和CH的低温氧化

Highly dispersed Pd on macroporous SmMnO mullite for low temperature oxidation of CO and CH.

作者信息

Zhu Yuning, Du Chun, Feng Zijian, Chen Yongjie, Li Hang, Chen Rong, Shen Meiqing, Shan Bin

机构信息

State Key Laboratory of Material Processing and Die and Mould Technology, School of Materials Science and Technology, Huazhong University of Science and Technology Wuhan 430074 China

School of Chemical Engineering and Technology, Tianjin University 92 Weijin Road, Nankai District Tianjin 300072 China.

出版信息

RSC Adv. 2018 Jan 31;8(10):5459-5467. doi: 10.1039/c7ra11551b. eCollection 2018 Jan 29.

DOI:10.1039/c7ra11551b
PMID:35542414
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9078158/
Abstract

The catalytic behavior of a palladium catalyst supported on macroporous SmMnO mullite (Pd/SMO-EG&M) for CO and CH oxidation was measured under lean-burn conditions. Different analytical techniques including XRD, Raman, BET, CO chemisorption, SEM, FTEM, XPS, TPD, TPR and CO + O pulse were undertaken to evaluate its physical and chemical properties. It was concluded that the crystal structure, morphology and specific surface area (SSA) of SmMnO remained unchanged after Pd addition. The Pd/SMO-EG&M exhibited a low complete transformation temperature for CO (105 °C) and CH (350 °C) oxidation. Such remarkable oxidation activity was attributed to high Pd dispersion (38.4%), which improved the reducibility and mobility of oxygen species, as revealed by TPR and TPD measurements. The high activity of oxygen species for Pd/SMO-EG&M above 250 °C accelerated the oxidation capacity as well. In a word, our study indicates that the macroporous Pd-mullite catalyst has potential applications in exhaust purification for gasoline vehicle.

摘要

在贫燃条件下测量了负载在大孔SmMnO莫来石上的钯催化剂（Pd/SMO-EG&M）对CO和CH氧化的催化行为。采用了包括XRD、拉曼、BET、CO化学吸附、SEM、FTEM、XPS、TPD、TPR和CO+O脉冲在内的不同分析技术来评估其物理和化学性质。得出的结论是，添加Pd后SmMnO的晶体结构、形态和比表面积（SSA）保持不变。Pd/SMO-EG&M对CO（105°C）和CH（350°C）氧化表现出较低的完全转化温度。这种显著的氧化活性归因于高Pd分散度（38.4%），TPR和TPD测量表明，这提高了氧物种的还原性和迁移率。250°C以上的Pd/SMO-EG&M的高活性氧物种也加速了氧化能力。总之，我们的研究表明，大孔钯-莫来石催化剂在汽油车尾气净化中具有潜在应用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/69b6/9078158/11973b8035a7/c7ra11551b-s1.jpg
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本文引用的文献

1
Dissociative Adsorption of Hydrogen and Oxygen on Palladium Clusters:  A Comparison with the (111) Infinite Surface.氢和氧在钯团簇上的解离吸附：与（111）无限表面的比较。
J Chem Theory Comput. 2007 May;3(3):878-84. doi: 10.1021/ct600370g.
2
NO reduction by CO over CuO supported on CeO2-doped TiO2: the effect of the amount of a few CeO2.在掺杂CeO₂的TiO₂负载的CuO上CO无还原现象：少量CeO₂含量的影响
Phys Chem Chem Phys. 2015 Jun 28;17(24):16092-109. doi: 10.1039/c5cp00745c. Epub 2015 Jun 1.
3
Three dimensionally ordered macroporous Pd-LaMnO3 self-regeneration catalysts for methane combustion.
用于甲烷燃烧的三维有序大孔Pd-LaMnO₃自再生催化剂。
Chem Commun (Camb). 2014 Nov 14;50(88):13575-7. doi: 10.1039/c4cc05966b.
4
NO oxidation catalysis on copper doped hexagonal phase LaCoO3: a combined experimental and theoretical study.铜掺杂六方相 LaCoO3 上无氧化催化作用：实验与理论研究的结合。
Phys Chem Chem Phys. 2014 Mar 21;16(11):5106-12. doi: 10.1039/c3cp54963a.
5
Mixed-phase oxide catalyst based on Mn-mullite (Sm, Gd)Mn2O5 for NO oxidation in diesel exhaust.基于锰莫来石（Sm，Gd）Mn2O5 的混合相氧化物催化剂用于柴油机尾气中 NO 的氧化。
Science. 2012 Aug 17;337(6096):832-5. doi: 10.1126/science.1225091.
6
High-pressure behaviours of HoMn(2)O(5) and BiMn(2)O(5).HoMn(2)O(5) 和 BiMn(2)O(5) 的高压行为。
J Phys Condens Matter. 2010 Jul 14;22(27):275401. doi: 10.1088/0953-8984/22/27/275401. Epub 2010 Jun 14.
7
Highly active catalysts of gold nanoparticles supported on three-dimensionally ordered macroporous LaFeO3 for soot oxidation.用于碳烟氧化的负载在三维有序大孔LaFeO₃上的金纳米颗粒的高活性催化剂。
Angew Chem Int Ed Engl. 2011 Mar 1;50(10):2326-9. doi: 10.1002/anie.201006014. Epub 2011 Feb 3.
8
Cu3(BTC)2: CO oxidation over MOF based catalysts.Cu3(BTC)2: 基于金属有机骨架催化剂的 CO 氧化。
Chem Commun (Camb). 2011 Feb 21;47(7):2167-9. doi: 10.1039/c0cc04944a. Epub 2011 Jan 7.
9
Strontium-doped perovskites rival platinum catalysts for treating NOx in simulated diesel exhaust.锶掺杂钙钛矿在模拟柴油尾气中处理氮氧化物方面可与铂催化剂相媲美。
Science. 2010 Mar 26;327(5973):1624-7. doi: 10.1126/science.1184087.
10
Three dimensionally ordered macroporous Ce(1-x)Zr(x)O(2) solid solutions for diesel soot combustion.用于柴油机碳烟燃烧的三维有序大孔 Ce(1-x)Zr(x)O(2)固溶体。
Chem Commun (Camb). 2010 Jan 21;46(3):457-9. doi: 10.1039/b915027g. Epub 2009 Nov 26.