贵金属负载型核壳结构催化剂的制备及其催化性能

Darui Wang; Zhendong Wang; Bin Zhang; Hongmin Sun; Peng Wu; Zi Gao; Weimin Yang

doi:10.11730/j.issn.1001-7631.2017.04.0289.09

贵金属负载型核壳结构催化剂的制备及其催化性能

Translated title of the contribution: Preparation and Catalytic Performance of Noble Metal Loaded Core-Shell Structured Catalyst

Darui Wang
, Zhendong Wang
, Bin Zhang
, Hongmin Sun
, Peng Wu
, Zi Gao
, Weimin Yang^*

^*Corresponding author for this work

School of Chemistry and Molecular Engineering

SINOPEC
East China Normal University
Fudan University

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Core-shell structured zeolites with ZSM-5 as core and dendritic SiO ₂ as shell were successfully prepared using cetyltrimetylammonium bromide (CTAB) as surfactant, urea as alkaline source and tetraethyl orthosilicate (TEOS) as silicate source in the microemulsion system composed of cyclohexane and n-pentanol. The effects of the preparation conditions such as temperature, time, addition of urea and TEOS on the preparation of the catalyst were investigated. The zeolites were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and N ₂ adsorption-desorption. The results indicated that the obtained core-shell structured zeolites exhibited excellent monodispersity, integrity and hydrothermal stability when the preparation temperature was between 100-120, reaction time was 4 h, the molar ratio of urea ℃ to TEOS was 1 and the molar ratio of TEOS to ZSM-5 was 0.9-1.2. Finally, the noble metal Pt was loaded on the dendritic mesoporous SiO ₂ shell and the obtained bifunctional catalysts of Pt/ZSM-5@MS exhibited high catalytic activity and reusability in the one-pot preparation of methyl isobutyl ketone (MIBK) from acetone.

Translated title of the contribution	Preparation and Catalytic Performance of Noble Metal Loaded Core-Shell Structured Catalyst
Original language	Chinese (Traditional)
Pages (from-to)	289-297
Number of pages	9
Journal	Huaxue Fanying Gongcheng Yu Gongyi/Chemical Reaction Engineering and Technology
Volume	33
Issue number	4
DOIs	https://doi.org/10.11730/j.issn.1001-7631.2017.04.0289.09
State	Published - 25 Aug 2017

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@article{1a0bfc6ab29246bc8ee4f03751db8534,

title = "贵金属负载型核壳结构催化剂的制备及其催化性能",

abstract = " Core-shell structured zeolites with ZSM-5 as core and dendritic SiO 2 as shell were successfully prepared using cetyltrimetylammonium bromide (CTAB) as surfactant, urea as alkaline source and tetraethyl orthosilicate (TEOS) as silicate source in the microemulsion system composed of cyclohexane and n-pentanol. The effects of the preparation conditions such as temperature, time, addition of urea and TEOS on the preparation of the catalyst were investigated. The zeolites were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and N 2 adsorption-desorption. The results indicated that the obtained core-shell structured zeolites exhibited excellent monodispersity, integrity and hydrothermal stability when the preparation temperature was between 100-120, reaction time was 4 h, the molar ratio of urea ℃ to TEOS was 1 and the molar ratio of TEOS to ZSM-5 was 0.9-1.2. Finally, the noble metal Pt was loaded on the dendritic mesoporous SiO 2 shell and the obtained bifunctional catalysts of Pt/ZSM-5@MS exhibited high catalytic activity and reusability in the one-pot preparation of methyl isobutyl ketone (MIBK) from acetone.",

keywords = "Bifunction, Core-shell structure, Hierarchical pore, Methyl isobutyl ketone, Noble metal",

author = "Darui Wang and Zhendong Wang and Bin Zhang and Hongmin Sun and Peng Wu and Zi Gao and Weimin Yang",

year = "2017",

month = aug,

day = "25",

doi = "10.11730/j.issn.1001-7631.2017.04.0289.09",

language = "繁体中文",

volume = "33",

pages = "289--297",

journal = "Huaxue Fanying Gongcheng Yu Gongyi/Chemical Reaction Engineering and Technology",

issn = "1001-7631",

publisher = "Zhejiang Publishing Industry Trading Corp.",

number = "4",

}

TY - JOUR

T1 - 贵金属负载型核壳结构催化剂的制备及其催化性能

AU - Wang, Darui

AU - Wang, Zhendong

AU - Zhang, Bin

AU - Sun, Hongmin

AU - Wu, Peng

AU - Gao, Zi

AU - Yang, Weimin

PY - 2017/8/25

Y1 - 2017/8/25

N2 - Core-shell structured zeolites with ZSM-5 as core and dendritic SiO 2 as shell were successfully prepared using cetyltrimetylammonium bromide (CTAB) as surfactant, urea as alkaline source and tetraethyl orthosilicate (TEOS) as silicate source in the microemulsion system composed of cyclohexane and n-pentanol. The effects of the preparation conditions such as temperature, time, addition of urea and TEOS on the preparation of the catalyst were investigated. The zeolites were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and N 2 adsorption-desorption. The results indicated that the obtained core-shell structured zeolites exhibited excellent monodispersity, integrity and hydrothermal stability when the preparation temperature was between 100-120, reaction time was 4 h, the molar ratio of urea ℃ to TEOS was 1 and the molar ratio of TEOS to ZSM-5 was 0.9-1.2. Finally, the noble metal Pt was loaded on the dendritic mesoporous SiO 2 shell and the obtained bifunctional catalysts of Pt/ZSM-5@MS exhibited high catalytic activity and reusability in the one-pot preparation of methyl isobutyl ketone (MIBK) from acetone.

AB - Core-shell structured zeolites with ZSM-5 as core and dendritic SiO 2 as shell were successfully prepared using cetyltrimetylammonium bromide (CTAB) as surfactant, urea as alkaline source and tetraethyl orthosilicate (TEOS) as silicate source in the microemulsion system composed of cyclohexane and n-pentanol. The effects of the preparation conditions such as temperature, time, addition of urea and TEOS on the preparation of the catalyst were investigated. The zeolites were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and N 2 adsorption-desorption. The results indicated that the obtained core-shell structured zeolites exhibited excellent monodispersity, integrity and hydrothermal stability when the preparation temperature was between 100-120, reaction time was 4 h, the molar ratio of urea ℃ to TEOS was 1 and the molar ratio of TEOS to ZSM-5 was 0.9-1.2. Finally, the noble metal Pt was loaded on the dendritic mesoporous SiO 2 shell and the obtained bifunctional catalysts of Pt/ZSM-5@MS exhibited high catalytic activity and reusability in the one-pot preparation of methyl isobutyl ketone (MIBK) from acetone.

KW - Bifunction

KW - Core-shell structure

KW - Hierarchical pore

KW - Methyl isobutyl ketone

KW - Noble metal

UR - https://www.scopus.com/pages/publications/85062392019

U2 - 10.11730/j.issn.1001-7631.2017.04.0289.09

DO - 10.11730/j.issn.1001-7631.2017.04.0289.09

M3 - 文章

AN - SCOPUS:85062392019

SN - 1001-7631

VL - 33

SP - 289

EP - 297

JO - Huaxue Fanying Gongcheng Yu Gongyi/Chemical Reaction Engineering and Technology

JF - Huaxue Fanying Gongcheng Yu Gongyi/Chemical Reaction Engineering and Technology

IS - 4

ER -

贵金属负载型核壳结构催化剂的制备及其催化性能

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