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author:

肖益鸿 (肖益鸿.) [1] (Scholars:肖益鸿) | 夏笑莹 (夏笑莹.) [2] | 阳艳玲 (阳艳玲.) [3] | 蔡国辉 (蔡国辉.) [4] (Scholars:蔡国辉) | 郑勇 (郑勇.) [5] (Scholars:郑勇) | 魏可镁 (魏可镁.) [6]

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CQVIP PKU CSCD

Abstract:

以尿素为沉淀剂,采用均匀沉淀法制备了CexZr1-xO2(0≤x≤1)固溶体,并以其为载体制备了负载型Pd/CexZr1-xO2催化剂。利用XRD、N2物理吸附、CO脉冲化学吸附、CO2-TPD、原位漫反射红外光谱(in situ DRIFTS)等技术考察了载体表面碱性强弱对Pd/CexZr1-xO2催化剂中Pd烧结行为的影响。结果表明,载体的弱碱性位能有效抑制Pd的烧结,其中Pd/Ce0.75Zr0.25O2催化剂其载体具有更多的弱碱性位,活性组分钯的分散度较高,催化剂的热稳定性较好。

Keyword:

CexZr1-xO2固溶体 Pd分散度 烧结 碱性

Community:

  • [ 1 ] 福州大学化肥催化剂国家工程研究中心

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Source :

无机化学学报

ISSN: 1001-4861

CN: 32-1185/O6

Year: 2013

Issue: 06

Volume: 29

Page: 1129-1134

0 . 7 4 2

JCR@2013

0 . 8 0 0

JCR@2023

JCR Journal Grade:4

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

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Chinese Cited Count:

30 Days PV: 0

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