IR investigations on the surface sites of MoP/SiO2 and their evolution under hydrodesulfurization conditions

Zili Wu; Weicheng Wu; Zhaochi Feng; Qin Xin; Can Li

IR investigations on the surface sites of MoP/SiO₂ and their evolution under hydrodesulfurization conditions

Zili Wu, Weicheng Wu, Zhaochi Feng, Qin Xin, Can Li

Research output: Contribution to journal › Conference article › peer-review

Abstract

The surface sites of MoP/SiO₂ and their evolution in the presence of sulfur species were studied by IR spectroscopy using CO as the probe molecule to get insight into the nature of working surface of molybdenum phosphides under HDS reaction conditions. The surface of the fresh MoP/SiO₂ catalyst was partially sulfided when treated with the thiophene/H₂ mixture above room temperature. With the presence of P atoms in the bulk of MoP, the composition of the sulfided MoP catalyst was somewhat similar to that of conventional Mo sulfides that adopted P as an additive. This could be the reason why MoP catalysts showed good activities in HDS reactions.

Original language	English
Pages (from-to)	189-190
Number of pages	2
Journal	ACS Division of Fuel Chemistry, Preprints
Volume	48
Issue number	1
State	Published - Mar 2003
Externally published	Yes
Event	Proceedings of the 2003 SPE/EPA/DOE Exploration Production Environmental Conference - San Antonio, TX, United States Duration: Mar 10 2003 → Mar 12 2003

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title = "IR investigations on the surface sites of MoP/SiO2 and their evolution under hydrodesulfurization conditions",

abstract = "The surface sites of MoP/SiO2 and their evolution in the presence of sulfur species were studied by IR spectroscopy using CO as the probe molecule to get insight into the nature of working surface of molybdenum phosphides under HDS reaction conditions. The surface of the fresh MoP/SiO2 catalyst was partially sulfided when treated with the thiophene/H2 mixture above room temperature. With the presence of P atoms in the bulk of MoP, the composition of the sulfided MoP catalyst was somewhat similar to that of conventional Mo sulfides that adopted P as an additive. This could be the reason why MoP catalysts showed good activities in HDS reactions.",

author = "Zili Wu and Weicheng Wu and Zhaochi Feng and Qin Xin and Can Li",

year = "2003",

month = mar,

language = "English",

volume = "48",

pages = "189--190",

journal = "ACS Division of Fuel Chemistry, Preprints",

issn = "0569-3772",

number = "1",

note = "Proceedings of the 2003 SPE/EPA/DOE Exploration Production Environmental Conference ; Conference date: 10-03-2003 Through 12-03-2003",

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TY - JOUR

T1 - IR investigations on the surface sites of MoP/SiO2 and their evolution under hydrodesulfurization conditions

AU - Wu, Zili

AU - Wu, Weicheng

AU - Feng, Zhaochi

AU - Xin, Qin

AU - Li, Can

PY - 2003/3

Y1 - 2003/3

N2 - The surface sites of MoP/SiO2 and their evolution in the presence of sulfur species were studied by IR spectroscopy using CO as the probe molecule to get insight into the nature of working surface of molybdenum phosphides under HDS reaction conditions. The surface of the fresh MoP/SiO2 catalyst was partially sulfided when treated with the thiophene/H2 mixture above room temperature. With the presence of P atoms in the bulk of MoP, the composition of the sulfided MoP catalyst was somewhat similar to that of conventional Mo sulfides that adopted P as an additive. This could be the reason why MoP catalysts showed good activities in HDS reactions.

AB - The surface sites of MoP/SiO2 and their evolution in the presence of sulfur species were studied by IR spectroscopy using CO as the probe molecule to get insight into the nature of working surface of molybdenum phosphides under HDS reaction conditions. The surface of the fresh MoP/SiO2 catalyst was partially sulfided when treated with the thiophene/H2 mixture above room temperature. With the presence of P atoms in the bulk of MoP, the composition of the sulfided MoP catalyst was somewhat similar to that of conventional Mo sulfides that adopted P as an additive. This could be the reason why MoP catalysts showed good activities in HDS reactions.

UR - http://www.scopus.com/inward/record.url?scp=0344121892&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0344121892

SN - 0569-3772

VL - 48

SP - 189

EP - 190

JO - ACS Division of Fuel Chemistry, Preprints

JF - ACS Division of Fuel Chemistry, Preprints

IS - 1

T2 - Proceedings of the 2003 SPE/EPA/DOE Exploration Production Environmental Conference

Y2 - 10 March 2003 through 12 March 2003

ER -

IR investigations on the surface sites of MoP/SiO₂ and their evolution under hydrodesulfurization conditions

Abstract

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