The catalytic oxidation of SOF in diesel engine exhaust by Pd/CexZr1-xO2 catalysts(Pd/CexZr1-xO2对柴油机尾气中可溶性有机物的催化氧化性能)

采用共沉淀结合乙醇超临界干燥方法,制备了不同铈锆比的CexZr1-xO2复合氧化物,采用浸渍法制备了负载Pd的催化剂,通过XRD、N2吸脱附、H2-TPR和静态储氧量测试等表征技术,考察了它们的结构性质、还原性能和储放氧性能,并将其应用于柴油机尾气可溶性有机物(SOF)的催化氧化反应中.结果表明,该铈锆复合氧化物具有圆柱形管状介孔结构,孔径分布范围较宽,具有较大的比表面积,因而有利于对SOF的吸附;锆的添加使铈锆复合氧化物体相氧向表面迁移的能力增强,进而提高了载体及其负载Pd催化剂的储氧量、还原性能和对SOF的催化氧化性能....

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Main Authors: HANYuxi(韩玉惜), ZHOURenxian(周仁贤)
Format: Article
Language:zho
Published: Zhejiang University Press 2014-11-01
Series:Zhejiang Daxue xuebao. Lixue ban
Subjects:
Online Access:https://doi.org/10.3785/j.issn.1008-9497.2014.06.012
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author HANYuxi(韩玉惜)
ZHOURenxian(周仁贤)
author_facet HANYuxi(韩玉惜)
ZHOURenxian(周仁贤)
author_sort HANYuxi(韩玉惜)
collection DOAJ
description 采用共沉淀结合乙醇超临界干燥方法,制备了不同铈锆比的CexZr1-xO2复合氧化物,采用浸渍法制备了负载Pd的催化剂,通过XRD、N2吸脱附、H2-TPR和静态储氧量测试等表征技术,考察了它们的结构性质、还原性能和储放氧性能,并将其应用于柴油机尾气可溶性有机物(SOF)的催化氧化反应中.结果表明,该铈锆复合氧化物具有圆柱形管状介孔结构,孔径分布范围较宽,具有较大的比表面积,因而有利于对SOF的吸附;锆的添加使铈锆复合氧化物体相氧向表面迁移的能力增强,进而提高了载体及其负载Pd催化剂的储氧量、还原性能和对SOF的催化氧化性能.
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spelling doaj.art-5406b5c4873148578c6a788959bb5dd12024-03-29T01:58:34ZzhoZhejiang University PressZhejiang Daxue xuebao. Lixue ban1008-94972014-11-0141667668110.3785/j.issn.1008-9497.2014.06.012The catalytic oxidation of SOF in diesel engine exhaust by Pd/CexZr1-xO2 catalysts(Pd/CexZr1-xO2对柴油机尾气中可溶性有机物的催化氧化性能)HANYuxi(韩玉惜)0ZHOURenxian(周仁贤)1Institute of Catalysis, Zhejiang University, Hangzhou 310028, China(浙江大学催化研究所,浙江 杭州 310028)Institute of Catalysis, Zhejiang University, Hangzhou 310028, China(浙江大学催化研究所,浙江 杭州 310028)采用共沉淀结合乙醇超临界干燥方法,制备了不同铈锆比的CexZr1-xO2复合氧化物,采用浸渍法制备了负载Pd的催化剂,通过XRD、N2吸脱附、H2-TPR和静态储氧量测试等表征技术,考察了它们的结构性质、还原性能和储放氧性能,并将其应用于柴油机尾气可溶性有机物(SOF)的催化氧化反应中.结果表明,该铈锆复合氧化物具有圆柱形管状介孔结构,孔径分布范围较宽,具有较大的比表面积,因而有利于对SOF的吸附;锆的添加使铈锆复合氧化物体相氧向表面迁移的能力增强,进而提高了载体及其负载Pd催化剂的储氧量、还原性能和对SOF的催化氧化性能.https://doi.org/10.3785/j.issn.1008-9497.2014.06.012铈锆复合氧化物负载pd催化剂可溶性有机物(sof)
spellingShingle HANYuxi(韩玉惜)
ZHOURenxian(周仁贤)
The catalytic oxidation of SOF in diesel engine exhaust by Pd/CexZr1-xO2 catalysts(Pd/CexZr1-xO2对柴油机尾气中可溶性有机物的催化氧化性能)
Zhejiang Daxue xuebao. Lixue ban
铈锆复合氧化物
负载pd催化剂
可溶性有机物(sof)
title The catalytic oxidation of SOF in diesel engine exhaust by Pd/CexZr1-xO2 catalysts(Pd/CexZr1-xO2对柴油机尾气中可溶性有机物的催化氧化性能)
title_full The catalytic oxidation of SOF in diesel engine exhaust by Pd/CexZr1-xO2 catalysts(Pd/CexZr1-xO2对柴油机尾气中可溶性有机物的催化氧化性能)
title_fullStr The catalytic oxidation of SOF in diesel engine exhaust by Pd/CexZr1-xO2 catalysts(Pd/CexZr1-xO2对柴油机尾气中可溶性有机物的催化氧化性能)
title_full_unstemmed The catalytic oxidation of SOF in diesel engine exhaust by Pd/CexZr1-xO2 catalysts(Pd/CexZr1-xO2对柴油机尾气中可溶性有机物的催化氧化性能)
title_short The catalytic oxidation of SOF in diesel engine exhaust by Pd/CexZr1-xO2 catalysts(Pd/CexZr1-xO2对柴油机尾气中可溶性有机物的催化氧化性能)
title_sort catalytic oxidation of sof in diesel engine exhaust by pd cexzr1 xo2 catalysts pd cexzr1 xo2对柴油机尾气中可溶性有机物的催化氧化性能
topic 铈锆复合氧化物
负载pd催化剂
可溶性有机物(sof)
url https://doi.org/10.3785/j.issn.1008-9497.2014.06.012
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