Highly active and stable lanthanum-doped core-shell-structured Ni@SiO 2 catalysts for the partial oxidation of methane to syngas

Lei Li; Yao Yao; Bo Sun; Zhaoyang Fei; Hao Xia; Jing Zhao; Weijie Ji; Chak Tong Au

doi:10.1002/cctc.201300537

Highly active and stable lanthanum-doped core-shell-structured Ni@SiO ₂ catalysts for the partial oxidation of methane to syngas

Lei Li, Yao Yao, Bo Sun, Zhaoyang Fei, Hao Xia, Jing Zhao, Weijie Ji, Chak Tong Au

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

29 Scopus citations

Abstract

The nanostructures of silica-encapsulated NiO nanoparticles (NPs) doped with La, Ce, Ba, Co, Cu, and Fe were prepared and tested as catalysts for the partial oxidation of methane to syngas. Techniques that include TEM, XRD, Brunauer-Emmett-Teller (BET), X-ray photoelectron spectroscopy (XPS), H ₂ temperature-programmed reduction (TPR), and O₂ temperature-programmed oxidation (TPO) were employed to characterize the fresh and used catalysts to understand the structure-performance relationship. The La-doped Ni@SiO₂ catalyst is superior to those doped with other elements. The effect of the reaction conditions on the catalyst performance over the best catalyst were also studied. The La₂O₃ species that were distributed uniformly throug

Original language	English
Pages (from-to)	3781-3787
Number of pages	7
Journal	ChemCatChem
Volume	5
Issue number	12
DOIs	https://doi.org/10.1002/cctc.201300537
State	Published - Dec 2013
Externally published	Yes

Keywords

core-shell structure
doping
methane
nanoparticles
nickel
partial oxidation
syngas

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10.1002/cctc.201300537

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title = "Highly active and stable lanthanum-doped core-shell-structured Ni@SiO 2 catalysts for the partial oxidation of methane to syngas",

abstract = "The nanostructures of silica-encapsulated NiO nanoparticles (NPs) doped with La, Ce, Ba, Co, Cu, and Fe were prepared and tested as catalysts for the partial oxidation of methane to syngas. Techniques that include TEM, XRD, Brunauer-Emmett-Teller (BET), X-ray photoelectron spectroscopy (XPS), H 2 temperature-programmed reduction (TPR), and O2 temperature-programmed oxidation (TPO) were employed to characterize the fresh and used catalysts to understand the structure-performance relationship. The La-doped Ni@SiO2 catalyst is superior to those doped with other elements. The effect of the reaction conditions on the catalyst performance over the best catalyst were also studied. The La2O3 species that were distributed uniformly throug",

keywords = "core-shell structure, doping, methane, nanoparticles, nickel, partial oxidation, syngas",

author = "Lei Li and Yao Yao and Bo Sun and Zhaoyang Fei and Hao Xia and Jing Zhao and Weijie Ji and Au, {Chak Tong}",

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AU - Li, Lei

AU - Yao, Yao

AU - Sun, Bo

AU - Fei, Zhaoyang

AU - Xia, Hao

AU - Zhao, Jing

AU - Ji, Weijie

AU - Au, Chak Tong

PY - 2013/12

Y1 - 2013/12

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AB - The nanostructures of silica-encapsulated NiO nanoparticles (NPs) doped with La, Ce, Ba, Co, Cu, and Fe were prepared and tested as catalysts for the partial oxidation of methane to syngas. Techniques that include TEM, XRD, Brunauer-Emmett-Teller (BET), X-ray photoelectron spectroscopy (XPS), H 2 temperature-programmed reduction (TPR), and O2 temperature-programmed oxidation (TPO) were employed to characterize the fresh and used catalysts to understand the structure-performance relationship. The La-doped Ni@SiO2 catalyst is superior to those doped with other elements. The effect of the reaction conditions on the catalyst performance over the best catalyst were also studied. The La2O3 species that were distributed uniformly throug

KW - core-shell structure

KW - doping

KW - methane

KW - nanoparticles

KW - nickel

KW - partial oxidation

KW - syngas

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Highly active and stable lanthanum-doped core-shell-structured Ni@SiO ₂ catalysts for the partial oxidation of methane to syngas

Abstract

Keywords

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