高级搜索

PVP辅助分散对Pd/SBA-15催化剂上甲苯催化燃烧性能的影响

,  ,  ,  ,  ,  ,  , 

downloadPDF

上一篇

下一篇

胡嘉, 刘昕, 苏伟康, 孙梦晗, 王兰英, 唐彤, 张秋林, 宁平. PVP辅助分散对Pd/SBA-15催化剂上甲苯催化燃烧性能的影响[J]. 环境工程学报, 2018, 12(11): 3116-3123. doi: 10.12030/j.cjee.201802093
引用本文: 胡嘉, 刘昕, 苏伟康, 孙梦晗, 王兰英, 唐彤, 张秋林, 宁平. PVP辅助分散对Pd/SBA-15催化剂上甲苯催化燃烧性能的影响[J]. 环境工程学报, 2018, 12(11): 3116-3123. doi: 10.12030/j.cjee.201802093
shu
HU Jia, LIU Xin, SU Weikang, SUN Menghan, WANG Lanying, TANG Tong, ZHANG Qiulin, NING Ping. Effect of PVP-assisted dispersion on catalytic combustion of toluene over Pd/SBA-15 catalyst[J]. Chinese Journal of Environmental Engineering, 2018, 12(11): 3116-3123. doi: 10.12030/j.cjee.201802093
Citation: HU Jia, LIU Xin, SU Weikang, SUN Menghan, WANG Lanying, TANG Tong, ZHANG Qiulin, NING Ping. Effect of PVP-assisted dispersion on catalytic combustion of toluene over Pd/SBA-15 catalyst[J]. Chinese Journal of Environmental Engineering, 2018, 12(11): 3116-3123. doi: 10.12030/j.cjee.201802093
shu

PVP辅助分散对Pd/SBA-15催化剂上甲苯催化燃烧性能的影响

  • 1.

    昆明理工大学环境科学与工程学院，昆明 650500

  • 基金项目:

    国家自然科学基金资助项目（21666014）

    昆明理工大学分析测试基金资助项目（2017M20162107013）

Effect of PVP-assisted dispersion on catalytic combustion of toluene over Pd/SBA-15 catalyst

  • 1.

    Faculty of Environmental Science and Engineering，Kunming University of Science and Technology，Kunming 650500，China

  • Fund Project:

  • 摘要: 采用浸渍法制备了Pd/SBA-15催化剂，并考察了PVP辅助分散对Pd/SBA-15催化剂催化甲苯燃烧性能的影响，利用XRD、Raman、N2吸附-脱附、HRTEM和XPS对催化剂结构及Pd物种的存在状态等进行了研究。结果表明，适量PVP辅助分散剂的加入，促进了Pd物种的分散并形成了稳定的活性物种，Pd物种主要以高度分散的PdO纳米粒子存在。通过PVP辅助分散作用，Pd/SBA-15催化剂表现出极好的甲苯催化燃烧活性。当空速为19 500 mL·（g?h）-1，反应温度为200 °С时，即有97%的甲苯可被催化氧化为CO2和H2O，明显优于传统浸渍法制备的Pd/SBA-15催化剂催化性能。
    Abstract: Pd/SBA-15 catalysts were prepared by impregnation method. The effect of PVP-assisted dispersion on the catalytic combustion of toluene over Pd/SBA-15 catalysts was investigated. There structure and the state of Pd species were researched by XRD, Raman, N2 adsorption-desorption, HRTEM and XPS techniques. It was shown that the addition of proper amount of PVP-assisted dispersant was beneficial to the dispersion of Pd species and the formation of stable active species. Meanwhile, Pd species predominantly existed in the form of highly dispersed PdO nanoparticles. In addition, Pd/SBA-15 catalyst exhibited excellent catalytic combustion performance of toluene through PVP-assisted dispersion. When the space velocity was 19 500 mL?(g·h)-1 and the reaction temperature was 200 °С, 97% toluene could be catalytically oxidized to CO2 and H2O, which was obviously superior to the catalytic performance of Pd/SBA-15 catalyst prepared by traditional impregnation method.
  • 加载中
  • [1] HE C, ZHANG F W, YUE L, et al.Nanometric palladium confined in mesoporous silica as efficient catalysts for toluene oxidation at low temperature[J].Applied Catalysis B: Environmental,2012,111–112:46-57 10.1016/j.apcatb.2011.09.017
    [2] POPOVA M, SZEGEDI á, CHERKEZOVA-ZHELEVA Z, et al.Toluene oxidation on chromium- and copper-modified SiO2 and SBA-15[J].Applied Catalysis A: General,2010,381(1/2):26-35 10.1016/j.apcata.2010.03.040
    [3] DENG J G, ZHANG L, DAI H X, et al.In situ hydrothermally synthesized mesoporous LaCoO3/SBA-15 catalysts: High activity for the complete oxidation of toluene and ethyl acetate[J].Applied Catalysis A: General,2009,352(1/2):43-49 10.1016/j.apcata.2008.09.037
    [4] QIN Y, QU Z P, DONG C, et al.Effect of pretreatment conditions on catalytic activity of Ag/SBA-15 catalyst for toluene oxidation[J].Chinese Journal of Catalysis,2017,38(9):1603-1612 10.1016/S1872-2067(17)62842-0
    [5] WANG F, LI J S, YUAN J F, et al.Short channeled Zr-Ce-SBA-15 supported palladium catalysts for toluene catalytic oxidation[J].Catalysis Communications,2011,12(15):1415-1419 10.1016/j.catcom.2011.05.021
    [6] HE C, LI P, CHENG J, et al.Synthesis and characterization of Pd/ZSM-5/MCM-48 biporous catalysts with superior activity for benzene oxidation[J].Applied Catalysis A: General,2010,382(2):167-175 10.1016/j.apcata.2010.04.033
    [7] LAI Y T, CHEN T C, LAN Y K, et al.Pt/SBA-15 as a highly efficient catalyst for catalytic toluene oxidation[J].ACS Catalysis,2014,4(11):3824-3836 10.1021/cs500733j
    [8] OKUMURA K, KOBAYASHI T, TANAKA H, et al.Toluene combustion over palladium supported on various metal oxide supports[J].Applied Catalysis B: Environmental,2003,44(4):325-331 10.1016/S0926-3373(03)00101-2
    [9] BENDAHOU K, CHERIF L, SIFFERT S, et al.The effect of the use of lanthanum-doped mesoporous SBA-15 on the performance of Pt/SBA-15 and Pd/SBA-15 catalysts for total oxidation of toluene[J].Applied Catalysis A: General,2008,351(1):82-87 10.1016/j.apcata.2008.09.001
    [10] AIKEN III J D A, FINKE R G.A review of modern transition-metal nanoclusters: Their synthesis, characterization, and applications in catalysis[J].Journal of Molecular Catalysis A: Chemical,1999,145(1/2):1-44 10.1016/S1381-1169(99)00098-9
    [11] ROUCOUX A, SCHULZ J, PATIN H.Reduced transition metal colloids: A novel family of reusable catalysts[J].Chemical Reviews,2002,102(10):3757-3778 10.1021/cr010350j
    [12] MéVELLEC V, ROUCOUX A, RAMIREZ E, et al.Surfactant-stabilized aqueous iridium(0) colloidal suspension: An efficient reusable catalyst for hydrogenation of arenes in biphasic media[J].Advanced Synthesis & Catalysis, 2004,346(1):72–76 10.1002/adsc.200303157
    [13] DUPONT J, SCHOLTEN J D.On the structural and surface properties of transition-metal nanoparticles in ionic liquids[J].Chemical Society Reviews, 2010,39(5):1780-1804 10.1039/B822551F
    [14] AIKEN J D, FINKE R G.Polyoxoanion- and tetrabutylammonium-stabilized Rh(0)n nanoclusters: Unprecedented nanocluster catalytic lifetime in solution[J].Journal of the American Chemical Society,1999,121(38):8803-8810 10.1021/ja991034d
    [15] PHOKA S, LAOKUL P, SWATSITANG E, et al.Synthesis, structural and optical properties of CeO2 nanoparticles synthesized by a simple polyvinyl pyrrolidone (PVP) solution route[J].Materials Chemistry & Physics,2009,115(1):423-428 10.1016/j.matchem摰?偹摳伮′搰漰洸愮椱渲献嬰?崱??潲甾爠湛愱氶?漠晋??慇琠慈氬礠獚楈獕???ㄠ????ㄠ??????????ㄠの???橬?橣捡慴瑡??び????び?つ???戠牥??季??嵯???佮丠????????啯买??夠????祣摡爠潦杩敢湥?灳爠潷摩畴捨琠楲潩湢?景牮漠浭?晲潰牨浯楬捯?慹捛楊摝?摊敯桵祲摮牡潬朠敯湦愠瑃楯潬湬?潩癤攠牡?偤搠???捥慲瑦慡汣祥猠瑓獣???晣晥攬挲琰?漰昬″洴攱琨愲氩?愳渰搳?猳由瀰瀠漱爰琮?瀰爱漶瀯敪爮瑪楣敩獳?漲渰‰琹栮攰?挮愰琵愰氼祢瑲椾挠?瀱攷牝映漘狁洬愠源捠攬嬠?崖??瀠灉氮椠攨摐??慬琼慳汵祢猾椲猼?????渭癐楖牐漩港流敬渼瑳慵汢?有??????く?????社监土??ぢ??〖???橤?愁炄探憨瑛扊?金?ㄆ??〖??????戶爨?):32-37
    [16] ?ZHAVA D, KILI?ASLAN N Z, ?ZKAR S.PVP-stabilized nickel(0) nanoparticles as catalyst in hydrogen generation from the methanolysis of hydrazine borane or ammonia borane[J].Applied Catalysis B: Environmental,2015,162:573-582 10.1016/j.apcatb.2014.07.033
    [17] WANG C X, YANG F, YANG W, et al.PdO nanoparticles enhancing the catalytic activity of Pd/carbon nanotubes for 4-nitrophenol reduction[J].RSC Advances,2015,5(35):27526-27532 10.1039/C4RA16792A
    [18] SIANG T J, PHAM T L M, CUONG N V, et al.Combined steam and CO2 reforming of methane for syngas production over carbon-resistant boron-promoted Ni/SBA-15 catalysts[J].Microporous & Mesoporous Materials,2018,262:122-132 10.1016/j.micromeso.2017.11.028
    [19] THIELEMANN J P, RESSLER T, WALTER A, et al.Structure of molybdenum oxide supported on silica SBA-15 studied by Raman, UV-Vis and X-ray absorption spectroscopy[J].Applied Catalysis A: General,2011,399(1/2):28-34 10.1016/j.apcata.2011.03.032
    [20] 朱纪春, 张新安, 白莹, 等. 银表面上PVP分子的表面增强拉曼光谱研究[J]. 河南大学学报(自然科学版),2004,34(2):20-23
    [21] COLUSSI S, TROVARELLI A, GROPPI G, et al.The effect of CeO2 on the dynamics of Pd–PdO transformation over Pd/Al2O3 combustion catalysts[J].Catalysis Communications,2007,8(8):1263-1266 10.1016/j.catcom.2006.11.020
    [22] ZHAO Y, BAEZA J A, RAO N K, et al.Unsupported PVA- and PVP-stabilized Pd nanoparticles as catalyst for nitrite hydrogenation in aqueous phase[J].Journal of Catalysis,2014,318:162-169 10.1016/j.jcat.2014.07.011
    [23] OUYANG L, TIAN P F, DA G J, et al.The origin of active sites for direct synthesis of H2O2 on Pd/TiO2 catalysts: Interfaces of Pd an
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  3350
  • HTML全文浏览数:  3198
  • PDF下载数:  117
  • 施引文献:  0
出版历程
  • 刊出日期:  2018-11-12

PVP辅助分散对Pd/SBA-15催化剂上甲苯催化燃烧性能的影响

  • 1. 昆明理工大学环境科学与工程学院，昆明 650500
基金项目:

国家自然科学基金资助项目（21666014）

昆明理工大学分析测试基金资助项目（2017M20162107013）

摘要: 采用浸渍法制备了Pd/SBA-15催化剂，并考察了PVP辅助分散对Pd/SBA-15催化剂催化甲苯燃烧性能的影响，利用XRD、Raman、N2吸附-脱附、HRTEM和XPS对催化剂结构及Pd物种的存在状态等进行了研究。结果表明，适量PVP辅助分散剂的加入，促进了Pd物种的分散并形成了稳定的活性物种，Pd物种主要以高度分散的PdO纳米粒子存在。通过PVP辅助分散作用，Pd/SBA-15催化剂表现出极好的甲苯催化燃烧活性。当空速为19 500 mL·（g?h）-1，反应温度为200 °С时，即有97%的甲苯可被催化氧化为CO2和H2O，明显优于传统浸渍法制备的Pd/SBA-15催化剂催化性能。

English Abstract

参考文献 (23)

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心