Role of cobalt on γ-Al2O3 based NOx storage catalyst

被引：2
作者：
Joo-Hyoung Park
Hyun Ju Cho
Sang Jun Park
In-Sik Nam
Gwon Koo Yeo
Jeong Ki Kil
Young Kee Youn
机构：
[1] Pohang University of Science and Technology,School of Environmental Science and Engineering/Department of Chemical Engineering
[2] Research & Development Division for Hyundai Motors Company & Kia Motors Corporation,undefined
来源：
Topics in Catalysis | 2007年 / 42-43卷
关键词：
NSR; NO; storage capacity; Co-containing catalyst; FTIR; XAFS;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Co/Pt/Ba/γ-Al2O3, Co/Ba/γ-Al2O3, Pt/Ba/γ-Al2O3, Co/Pt/γ-Al2O3, Ba/γ-Al2O3, Pt/γ-Al2O3, and Co/γ-Al2O3 type catalysts were prepared by a conventional impregnation method, and their NOx storage capacities were evaluated by colorimetric assay. Co-containing catalysts had a higher NOx storage capacity than that of Co-free counterparts. The role of each component, especially Co, for the catalysts prepared was investigated by using in-situ FTIR. The high NOx storage for Co-containing catalysts including Co/Ba/γ-Al2O3 and Co/Pt/Ba/γ-Al2O3 is mainly due to the formation of Co3O4 on the catalyst surface identified by XAFS.
引用
收藏
页码：61 / 64
页数：3
相关论文
共 50 条
  • [21] NOx adsorption and desorption of a Mn-incorporated NSR catalyst Pt/Ba/Ce/xMn/γ-Al2O3
    Pan Wang
    Dan Yu
    Gang Wu
    Farhan Sheikh
    Junheng Liu
    Environmental Science and Pollution Research, 2019, 26 : 27888 - 27896
  • [22] Two-nozzle flame synthesis of Pt/Ba/Al2O3 for NOx storage
    Buechel, R.
    Strobel, R.
    Pratsinis, S. E.
    Baiker, A.
    NSTI NANOTECH 2008, VOL 1, TECHNICAL PROCEEDINGS, 2008, : 669 - 671
  • [23] Effect of Co addition to Pt/Ba/Al2O3 system for NOx storage and reduction
    Wang, Xiaoying
    Yu, Yunbo
    He, Hong
    APPLIED CATALYSIS B-ENVIRONMENTAL, 2010, 100 (1-2) : 19 - 30
  • [24] Two-nozzle flame synthesis of Pt/Ba/Al2O3 for NOx storage
    Buechel, R.
    Strobel, R.
    Pratsinis, S. E.
    Baiker, A.
    CLEAN TECHNOLOGY 2008: BIO ENERGY, RENEWABLES, GREEN BUILDING, SMART GRID, STORAGE, AND WATER, 2008, : 651 - 653
  • [25] High-Temperature NOx Storage and Sulfur-Resistance of the Lithium-Based Lean-Burn NOx Trap Catalyst Pt/Li/TiO2–Al2O3
    Jun-Jun He
    Ming Meng
    Zhi-Qiang Zou
    Xiao-Xia He
    Catalysis Letters, 2010, 136 : 234 - 242
  • [26] NOx reduction on a transition metal-free γ-Al2O3 catalyst using dimethylether (DME)
    Ozensoy, Emrah
    Herling, Darrel
    Szanyi, Janos
    CATALYSIS TODAY, 2008, 136 (1-2) : 46 - 54
  • [27] 'Fast' NOx storage on Pt/BaO/γ-Al2O3 Lean NOx Traps with NO2+O2 and NO + O2: Effects of Pt, Ba loading
    Chaugule, Saurabh S.
    Yezerets, Aleksey
    Currier, Neal W.
    Ribeiro, Fabio H.
    Delgass, W. Nicholas
    CATALYSIS TODAY, 2010, 151 (3-4) : 291 - 303
  • [28] SOx uptake and release properties of TiO2/Al2O3 and BaO/TiO2/Al2O3 mixed oxide systems as NOx storage materials
    Senturk, Goksu S.
    Vovk, Evgeny I.
    Zaikovskii, Vladimir I.
    Say, Zafer
    Soylu, Asli M.
    Bukhtiyarov, Valerii I.
    Ozensoy, Emrah
    CATALYSIS TODAY, 2012, 184 (01) : 54 - 71
  • [29] An exploratory study on simultaneous removal of soot and NOx over Ir/γ-Al2O3 catalyst in the presence of O2
    Zhu, Rongshu
    Guo, Mingxin
    Ci, Xinbo
    Ouyang, Feng
    CATALYSIS COMMUNICATIONS, 2008, 9 (06) : 1184 - 1188
  • [30] Influence of Mn and Fe Addition on the NOx Storage–Reduction Properties and SO2 Poisoning of a Pt/Ba/Al2O3 Model Catalyst
    P. N. Lê
    E. C. Corbos
    X. Courtois
    F. Can
    S. Royer
    P. Marecot
    D. Duprez
    Topics in Catalysis, 2009, 52 : 1771 - 1775
12345