Carbon nitride modified nanocarbon materials as efficient non-metallic catalysts for alkane dehydrogenation

Lei Shi; Wei Qi; Wei Liu; Pengqiang Yan; Fan Li; Jianmin Sun; Dangsheng Su

doi:10.1016/j.cattod.2017.03.047

Carbon nitride modified nanocarbon materials as efficient non-metallic catalysts for alkane dehydrogenation

Lei Shi
, Wei Qi^*
, Wei Liu
, Pengqiang Yan
, Fan Li
, Jianmin Sun
, Dangsheng Su

^*Corresponding author for this work

School of Chemistry and Chemical Engineering

Liaoning University of Petroleum and Chemical Technology
CAS - Institute of Metal Research

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

23 Scopus citations

Abstract

Carbon nitride modified carbon nanotubes (CN-OCNT) was prepared through simple electrostatic-dispersion and carbonization process using melamine and oxidized CNTs (oCNTs) as precursors. The stable electrostatic interactions between melamine and oCNTs enable a homogeneous dispersion of the precursor melamine on oCNTs surface. Carbon nitride (CN_x) layers formed in-situ and dispersed evenly on oCNTs surface after thermal treatment. The modification with CN_x layers increased the surface area and basicity of nanocarbon materials. And the electron rich CN_x layers effectively increased the nucleophilicity, and thus promoted the C–H bond activation ability of nanocarbon catalysts. CN_x modified nanocarbon exhibited an obviously higher intrinsic activity than unmodified ones.

Original language	English
Pages (from-to)	48-54
Number of pages	7
Journal	Catalysis Today
Volume	301
DOIs	https://doi.org/10.1016/j.cattod.2017.03.047
State	Published - 1 Mar 2018

Keywords

Alkane dehydrogenation
Carbon catalysis
Carbon nitride modification
C–H bond activation
Heterogeneous catalysis

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10.1016/j.cattod.2017.03.047

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title = "Carbon nitride modified nanocarbon materials as efficient non-metallic catalysts for alkane dehydrogenation",

abstract = "Carbon nitride modified carbon nanotubes (CN-OCNT) was prepared through simple electrostatic-dispersion and carbonization process using melamine and oxidized CNTs (oCNTs) as precursors. The stable electrostatic interactions between melamine and oCNTs enable a homogeneous dispersion of the precursor melamine on oCNTs surface. Carbon nitride (CNx) layers formed in-situ and dispersed evenly on oCNTs surface after thermal treatment. The modification with CNx layers increased the surface area and basicity of nanocarbon materials. And the electron rich CNx layers effectively increased the nucleophilicity, and thus promoted the C–H bond activation ability of nanocarbon catalysts. CNx modified nanocarbon exhibited an obviously higher intrinsic activity than unmodified ones.",

keywords = "Alkane dehydrogenation, Carbon catalysis, Carbon nitride modification, C–H bond activation, Heterogeneous catalysis",

author = "Lei Shi and Wei Qi and Wei Liu and Pengqiang Yan and Fan Li and Jianmin Sun and Dangsheng Su",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2018",

month = mar,

day = "1",

doi = "10.1016/j.cattod.2017.03.047",

language = "英语",

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journal = "Catalysis Today",

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TY - JOUR

T1 - Carbon nitride modified nanocarbon materials as efficient non-metallic catalysts for alkane dehydrogenation

AU - Shi, Lei

AU - Qi, Wei

AU - Liu, Wei

AU - Yan, Pengqiang

AU - Li, Fan

AU - Sun, Jianmin

AU - Su, Dangsheng

PY - 2018/3/1

Y1 - 2018/3/1

N2 - Carbon nitride modified carbon nanotubes (CN-OCNT) was prepared through simple electrostatic-dispersion and carbonization process using melamine and oxidized CNTs (oCNTs) as precursors. The stable electrostatic interactions between melamine and oCNTs enable a homogeneous dispersion of the precursor melamine on oCNTs surface. Carbon nitride (CNx) layers formed in-situ and dispersed evenly on oCNTs surface after thermal treatment. The modification with CNx layers increased the surface area and basicity of nanocarbon materials. And the electron rich CNx layers effectively increased the nucleophilicity, and thus promoted the C–H bond activation ability of nanocarbon catalysts. CNx modified nanocarbon exhibited an obviously higher intrinsic activity than unmodified ones.

AB - Carbon nitride modified carbon nanotubes (CN-OCNT) was prepared through simple electrostatic-dispersion and carbonization process using melamine and oxidized CNTs (oCNTs) as precursors. The stable electrostatic interactions between melamine and oCNTs enable a homogeneous dispersion of the precursor melamine on oCNTs surface. Carbon nitride (CNx) layers formed in-situ and dispersed evenly on oCNTs surface after thermal treatment. The modification with CNx layers increased the surface area and basicity of nanocarbon materials. And the electron rich CNx layers effectively increased the nucleophilicity, and thus promoted the C–H bond activation ability of nanocarbon catalysts. CNx modified nanocarbon exhibited an obviously higher intrinsic activity than unmodified ones.

KW - Alkane dehydrogenation

KW - Carbon catalysis

KW - Carbon nitride modification

KW - C–H bond activation

KW - Heterogeneous catalysis

UR - https://www.scopus.com/pages/publications/85017474717

U2 - 10.1016/j.cattod.2017.03.047

DO - 10.1016/j.cattod.2017.03.047

M3 - 文章

AN - SCOPUS:85017474717

SN - 0920-5861

VL - 301

SP - 48

EP - 54

JO - Catalysis Today

JF - Catalysis Today

ER -

Carbon nitride modified nanocarbon materials as efficient non-metallic catalysts for alkane dehydrogenation

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Keywords

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