Synthesis and characterization of WS 2 nanotube supported cobalt catalyst for hydrodesulfurization

Yulia Tsverin; Ronit Popovitz-Biro; Yishay Feldman; Reshef Tenne; Mallikharjuna Rao Komarneni; Zhongqing Yu; Ashish Chakradhar; Andrew Sand; Uwe Burghaus

doi:10.1016/j.materresbull.2012.03.053

Synthesis and characterization of WS ₂ nanotube supported cobalt catalyst for hydrodesulfurization

Yulia Tsverin, Ronit Popovitz-Biro, Yishay Feldman, Reshef Tenne, Mallikharjuna Rao Komarneni, Zhongqing Yu, Ashish Chakradhar, Andrew Sand, Uwe Burghaus

Chemistry (Twin Cities)

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

34 Scopus citations

Abstract

WS ₂ nanostructures hold structural characteristics which suggest they will be suitable for heterogeneous catalysis in the hydrodesulfurization (HDS) process. In this work, WS ₂ nanotubes (INT-WS ₂) were coated with cobalt nanoparticles using electroless plating method. Prior to cobalt deposition, the nanotubes surface was activated using palladium seeding process. The deposited cobalt nanoparticles had hcp crystal structure and formed non-uniform layer on the nanotubes surface. The catalytic reactivity of the produced cobalt coated nanotubes toward thiophene decomposition was characterized by an atmospheric flow reactor. The coated nanotubes revealed good catalytic reactivity toward thiophene mineralization. Further, the adsorption kinetics of thiophene on coated INT-WS ₂ was studied by thermal desorption spectroscopy (TDS). The cobalt coated system was found to be more catalytically active than the pristine INT-WS ₂ system. This result is promising since further optimization of the nanofabrication process of the catalyst should increase the conversion rates even further.

Original language	English (US)
Pages (from-to)	1653-1660
Number of pages	8
Journal	Materials Research Bulletin
Volume	47
Issue number	7
DOIs	https://doi.org/10.1016/j.materresbull.2012.03.053
State	Published - Jul 2012

Bibliographical note

Funding Information:
We thank Dr. Alla Zak of “NanoMaterials” for the synthesis of the nanotubes and for fruitful discussions. NDSU gratefully acknowledges samples obtained from Haldor-Topsoe. We thank also L. Ming at Brookhaven National labs for SEM characterization of drop-and-dry samples. Financial support from the Chemical Sciences, Geosciences, and Biosciences Division, Office of Basic Energy Sciences, Office of Science, U.S. Department of Energy is acknowledged (Project DE-FG02-08ER15987) by NDSU as well as NSF CAREER. RT gratefully acknowledges (a) the support of ERC project INTIF 226639, (b) the Israel Science Foundation , (c) the Harold Perlman Foundation , and (d) the Irving and Cherna Moskowitz Center for Nano and Bio-Nano Imaging . RT is the Drake Family Chair in Nanotechnology and director of the Helen and Martin Kimmel Center for Nanoscale Science. Appendix A

Keywords

A. Inorganic compounds
A. Nanostructures
B. Chemical synthesis
C. Electron microscopy
D. Catalytic properties

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10.1016/j.materresbull.2012.03.053

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title = "Synthesis and characterization of WS 2 nanotube supported cobalt catalyst for hydrodesulfurization",

abstract = "WS 2 nanostructures hold structural characteristics which suggest they will be suitable for heterogeneous catalysis in the hydrodesulfurization (HDS) process. In this work, WS 2 nanotubes (INT-WS 2) were coated with cobalt nanoparticles using electroless plating method. Prior to cobalt deposition, the nanotubes surface was activated using palladium seeding process. The deposited cobalt nanoparticles had hcp crystal structure and formed non-uniform layer on the nanotubes surface. The catalytic reactivity of the produced cobalt coated nanotubes toward thiophene decomposition was characterized by an atmospheric flow reactor. The coated nanotubes revealed good catalytic reactivity toward thiophene mineralization. Further, the adsorption kinetics of thiophene on coated INT-WS 2 was studied by thermal desorption spectroscopy (TDS). The cobalt coated system was found to be more catalytically active than the pristine INT-WS 2 system. This result is promising since further optimization of the nanofabrication process of the catalyst should increase the conversion rates even further.",

keywords = "A. Inorganic compounds, A. Nanostructures, B. Chemical synthesis, C. Electron microscopy, D. Catalytic properties",

author = "Yulia Tsverin and Ronit Popovitz-Biro and Yishay Feldman and Reshef Tenne and Komarneni, {Mallikharjuna Rao} and Zhongqing Yu and Ashish Chakradhar and Andrew Sand and Uwe Burghaus",

note = "Funding Information: We thank Dr. Alla Zak of “NanoMaterials” for the synthesis of the nanotubes and for fruitful discussions. NDSU gratefully acknowledges samples obtained from Haldor-Topsoe. We thank also L. Ming at Brookhaven National labs for SEM characterization of drop-and-dry samples. Financial support from the Chemical Sciences, Geosciences, and Biosciences Division, Office of Basic Energy Sciences, Office of Science, U.S. Department of Energy is acknowledged (Project DE-FG02-08ER15987) by NDSU as well as NSF CAREER. RT gratefully acknowledges (a) the support of ERC project INTIF 226639, (b) the Israel Science Foundation , (c) the Harold Perlman Foundation , and (d) the Irving and Cherna Moskowitz Center for Nano and Bio-Nano Imaging . RT is the Drake Family Chair in Nanotechnology and director of the Helen and Martin Kimmel Center for Nanoscale Science. Appendix A ",

year = "2012",

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language = "English (US)",

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T1 - Synthesis and characterization of WS 2 nanotube supported cobalt catalyst for hydrodesulfurization

AU - Tsverin, Yulia

AU - Popovitz-Biro, Ronit

AU - Feldman, Yishay

AU - Tenne, Reshef

AU - Komarneni, Mallikharjuna Rao

AU - Yu, Zhongqing

AU - Chakradhar, Ashish

AU - Sand, Andrew

AU - Burghaus, Uwe

N1 - Funding Information: We thank Dr. Alla Zak of “NanoMaterials” for the synthesis of the nanotubes and for fruitful discussions. NDSU gratefully acknowledges samples obtained from Haldor-Topsoe. We thank also L. Ming at Brookhaven National labs for SEM characterization of drop-and-dry samples. Financial support from the Chemical Sciences, Geosciences, and Biosciences Division, Office of Basic Energy Sciences, Office of Science, U.S. Department of Energy is acknowledged (Project DE-FG02-08ER15987) by NDSU as well as NSF CAREER. RT gratefully acknowledges (a) the support of ERC project INTIF 226639, (b) the Israel Science Foundation , (c) the Harold Perlman Foundation , and (d) the Irving and Cherna Moskowitz Center for Nano and Bio-Nano Imaging . RT is the Drake Family Chair in Nanotechnology and director of the Helen and Martin Kimmel Center for Nanoscale Science. Appendix A

PY - 2012/7

Y1 - 2012/7

N2 - WS 2 nanostructures hold structural characteristics which suggest they will be suitable for heterogeneous catalysis in the hydrodesulfurization (HDS) process. In this work, WS 2 nanotubes (INT-WS 2) were coated with cobalt nanoparticles using electroless plating method. Prior to cobalt deposition, the nanotubes surface was activated using palladium seeding process. The deposited cobalt nanoparticles had hcp crystal structure and formed non-uniform layer on the nanotubes surface. The catalytic reactivity of the produced cobalt coated nanotubes toward thiophene decomposition was characterized by an atmospheric flow reactor. The coated nanotubes revealed good catalytic reactivity toward thiophene mineralization. Further, the adsorption kinetics of thiophene on coated INT-WS 2 was studied by thermal desorption spectroscopy (TDS). The cobalt coated system was found to be more catalytically active than the pristine INT-WS 2 system. This result is promising since further optimization of the nanofabrication process of the catalyst should increase the conversion rates even further.

AB - WS 2 nanostructures hold structural characteristics which suggest they will be suitable for heterogeneous catalysis in the hydrodesulfurization (HDS) process. In this work, WS 2 nanotubes (INT-WS 2) were coated with cobalt nanoparticles using electroless plating method. Prior to cobalt deposition, the nanotubes surface was activated using palladium seeding process. The deposited cobalt nanoparticles had hcp crystal structure and formed non-uniform layer on the nanotubes surface. The catalytic reactivity of the produced cobalt coated nanotubes toward thiophene decomposition was characterized by an atmospheric flow reactor. The coated nanotubes revealed good catalytic reactivity toward thiophene mineralization. Further, the adsorption kinetics of thiophene on coated INT-WS 2 was studied by thermal desorption spectroscopy (TDS). The cobalt coated system was found to be more catalytically active than the pristine INT-WS 2 system. This result is promising since further optimization of the nanofabrication process of the catalyst should increase the conversion rates even further.

KW - A. Inorganic compounds

KW - A. Nanostructures

KW - B. Chemical synthesis

KW - C. Electron microscopy

KW - D. Catalytic properties

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