Copolymer assisted self-assembly of nanoporous mixed oxides for reactive adsorption desulfurization

Peng Bai; Rooh Ullah; Pengyun Liu; Bowen Liu; U. J. Etim; Pingping Wu; Wei Xing; Youhe Wang; Zhen Liu; Jun Li; Zifeng Yan

doi:10.1166/nnl.2016.2177

Copolymer assisted self-assembly of nanoporous mixed oxides for reactive adsorption desulfurization

Peng Bai^*, Rooh Ullah, Pengyun Liu, Bowen Liu, U. J. Etim, Pingping Wu, Wei Xing, Youhe Wang, Zhen Liu, Jun Li, Zifeng Yan

^*Corresponding author for this work

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

2 Scopus citations

Abstract

In this study, nanoporous ZnO-Al₂O₃ mixed oxides (MO) were synthesized via a copolymer assisted self-assembly method and used as the catalyst support for the reactive adsorption desulfurization of model fuel. The as-synthesized Ni/ZnO-Al₂O₃ adsorbents were characterized by X-ray diffraction (XRD), N₂ adsorption-desorption, scanning electron microscopy (SEM), and H₂-temperature programed reduction (TPR). Results revealed that with the increase in Ni loading, the Ni-Al₂O₃ interaction increases significantly compared with Zn-Al₂O₃, resulting in the ion exchange between Ni²⁺ and Zn²⁺ on alumina framework. This phenomenon affords free ZnO with high Ni concentration for higher sulfur capture capacity. Among tested adsorbents, 12%Ni/ZnO-Al₂O₃ showed the best desulfurization performance by achieving a breakthrough volume of up to 63 mL of a high sulfur concentration feed, corresponding to 108.8 mg S/g sulfur adsorption capacity, which is 76% higher than that of 7%Ni/ZnO-Al₂O₃ sample. Moreover, the RADS mechanism on Ni/ZnO-Al₂O₃ adsorbent is also proposed and discussed.

Original language	English
Pages (from-to)	931-937
Number of pages	7
Journal	Nanoscience and Nanotechnology Letters
Volume	8
Issue number	11
DOIs	https://doi.org/10.1166/nnl.2016.2177
State	Published - Nov 2016
Externally published	Yes

Keywords

Adsorbent
Mesoporous
Mixed oxide
Reactive adsorptive desulfurization
Thiophene

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@article{49481592ddf34fac8c7ecf1214ff40b8,

title = "Copolymer assisted self-assembly of nanoporous mixed oxides for reactive adsorption desulfurization",

abstract = "In this study, nanoporous ZnO-Al2O3 mixed oxides (MO) were synthesized via a copolymer assisted self-assembly method and used as the catalyst support for the reactive adsorption desulfurization of model fuel. The as-synthesized Ni/ZnO-Al2O3 adsorbents were characterized by X-ray diffraction (XRD), N2 adsorption-desorption, scanning electron microscopy (SEM), and H2-temperature programed reduction (TPR). Results revealed that with the increase in Ni loading, the Ni-Al2O3 interaction increases significantly compared with Zn-Al2O3, resulting in the ion exchange between Ni2+ and Zn2+ on alumina framework. This phenomenon affords free ZnO with high Ni concentration for higher sulfur capture capacity. Among tested adsorbents, 12%Ni/ZnO-Al2O3 showed the best desulfurization performance by achieving a breakthrough volume of up to 63 mL of a high sulfur concentration feed, corresponding to 108.8 mg S/g sulfur adsorption capacity, which is 76% higher than that of 7%Ni/ZnO-Al2O3 sample. Moreover, the RADS mechanism on Ni/ZnO-Al2O3 adsorbent is also proposed and discussed.",

keywords = "Adsorbent, Mesoporous, Mixed oxide, Reactive adsorptive desulfurization, Thiophene",

author = "Peng Bai and Rooh Ullah and Pengyun Liu and Bowen Liu and Etim, {U. J.} and Pingping Wu and Wei Xing and Youhe Wang and Zhen Liu and Jun Li and Zifeng Yan",

year = "2016",

month = nov,

doi = "10.1166/nnl.2016.2177",

language = "英语",

volume = "8",

pages = "931--937",

journal = "Nanoscience and Nanotechnology Letters",

issn = "1941-4900",

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TY - JOUR

T1 - Copolymer assisted self-assembly of nanoporous mixed oxides for reactive adsorption desulfurization

AU - Bai, Peng

AU - Ullah, Rooh

AU - Liu, Pengyun

AU - Liu, Bowen

AU - Etim, U. J.

AU - Wu, Pingping

AU - Xing, Wei

AU - Wang, Youhe

AU - Liu, Zhen

AU - Li, Jun

AU - Yan, Zifeng

PY - 2016/11

Y1 - 2016/11

N2 - In this study, nanoporous ZnO-Al2O3 mixed oxides (MO) were synthesized via a copolymer assisted self-assembly method and used as the catalyst support for the reactive adsorption desulfurization of model fuel. The as-synthesized Ni/ZnO-Al2O3 adsorbents were characterized by X-ray diffraction (XRD), N2 adsorption-desorption, scanning electron microscopy (SEM), and H2-temperature programed reduction (TPR). Results revealed that with the increase in Ni loading, the Ni-Al2O3 interaction increases significantly compared with Zn-Al2O3, resulting in the ion exchange between Ni2+ and Zn2+ on alumina framework. This phenomenon affords free ZnO with high Ni concentration for higher sulfur capture capacity. Among tested adsorbents, 12%Ni/ZnO-Al2O3 showed the best desulfurization performance by achieving a breakthrough volume of up to 63 mL of a high sulfur concentration feed, corresponding to 108.8 mg S/g sulfur adsorption capacity, which is 76% higher than that of 7%Ni/ZnO-Al2O3 sample. Moreover, the RADS mechanism on Ni/ZnO-Al2O3 adsorbent is also proposed and discussed.

AB - In this study, nanoporous ZnO-Al2O3 mixed oxides (MO) were synthesized via a copolymer assisted self-assembly method and used as the catalyst support for the reactive adsorption desulfurization of model fuel. The as-synthesized Ni/ZnO-Al2O3 adsorbents were characterized by X-ray diffraction (XRD), N2 adsorption-desorption, scanning electron microscopy (SEM), and H2-temperature programed reduction (TPR). Results revealed that with the increase in Ni loading, the Ni-Al2O3 interaction increases significantly compared with Zn-Al2O3, resulting in the ion exchange between Ni2+ and Zn2+ on alumina framework. This phenomenon affords free ZnO with high Ni concentration for higher sulfur capture capacity. Among tested adsorbents, 12%Ni/ZnO-Al2O3 showed the best desulfurization performance by achieving a breakthrough volume of up to 63 mL of a high sulfur concentration feed, corresponding to 108.8 mg S/g sulfur adsorption capacity, which is 76% higher than that of 7%Ni/ZnO-Al2O3 sample. Moreover, the RADS mechanism on Ni/ZnO-Al2O3 adsorbent is also proposed and discussed.

KW - Adsorbent

KW - Mesoporous

KW - Mixed oxide

KW - Reactive adsorptive desulfurization

KW - Thiophene

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U2 - 10.1166/nnl.2016.2177

DO - 10.1166/nnl.2016.2177

M3 - 文章

AN - SCOPUS:84994558895

SN - 1941-4900

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SP - 931

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JO - Nanoscience and Nanotechnology Letters

JF - Nanoscience and Nanotechnology Letters

IS - 11

ER -

Copolymer assisted self-assembly of nanoporous mixed oxides for reactive adsorption desulfurization

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Keywords

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