NDLI: Synthesis and Characterization of Hexamethylenediammonium Thiometallates as Precursors of MoS2 and WS2 Catalysts: In situ Activation During HDS of DBT

Content Provider	Springer Nature Link
Author	Alonso Núñez, G. Huirache Acuña, R. Paraguay Delgado, F. Lumbreras, J. A. García Alamilla, R. Castillo Mares, A. Romero, R. Somanathan, R. Chianelli, R. R.
Copyright Year	2009
Abstract	Hexamethylenediammonium thiometallate (HeDaT) of molybdenum and tungsten were synthesized using the aqueous solution method. This method improved significantly the yield of the catalysts. The HeDaT precursors were in situ activated during the hydrodesulfurization (HDS) of dibenzothiophene (DBT) generating MoS2 and WS2 catalysts. To characterize the precursors Fourier Transform Infra Red (FTIR), Ultraviolet (UV–Vis) and Nuclear Magnetic Resonance (1H NMR) spectroscopy techniques were used to determine their chemical structures. In addition, thermal analysis (TGA-DTA) were performed to study the fragmentation and decomposition behavior of their molecular structures. Catalysts were studied by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) which showed the shapes of the particles and the characteristic fringes of the layered MoS2 and WS2 phases, respectively. Specific surface areas were determined by the BET method with values of 5 and 19 m2/g with type I and IV adsorption–desorption nitrogen isotherms for both catalysts. The X-ray diffraction study showed poorly crystalline catalysts with weak (002) intensity for the MoS2 and a better-defined (002) reflection for the WS2.
Starting Page	318
Ending Page	326
Page Count	9
File Format	PDF
ISSN	1011372X
Journal	Catalysis Letters
Volume Number	130
Issue Number	3-4
e-ISSN	1572879X
Language	English
Publisher	Springer US
Publisher Date	2009-03-28
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Aqueous solution Hexamethylenediammonium thiometallates In situ-activated MoS2 WS2 catalysts Pharmacy Industrial Chemistry/Chemical Engineering Physical Chemistry Catalysis
Content Type	Text
Resource Type	Article
Subject	Chemistry Catalysis

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Unsupported Ni/Mo(W)S2 Catalysts from Hexamethylenediammonium Thiometallates Precursors: In Situ Activation During the HDS of DBT

Comparative Study of WS2 and Co(Ni)/WS2 HDS Catalysts Prepared by ex situ/in situ Activation of Ammonium Thiotungstate

HDS of DBT with Molybdenum Disulfide Catalysts Prepared by In Situ Decomposition of Alkyltrimethylammonium Thiomolybdates

Rationalizing the catalytic performance of γ-alumina-supported Co(Ni)–Mo(W) HDS catalysts prepared by urea-matrix combustion synthesis

Deactivation of MoS2 catalysts during the HDS of thiophene

SBA-15 as Support for Ni–MoS2 HDS Catalysts Derived from Sulfur-containing Molybdenum and Nickel Complexes in the Reaction of HDS of DBT: An All Sulfide Route

High activity Ni/MoS2 catalysts obtained from alkylthiometalate mixtures for the hydrodesulfurization of dibenzothiophene

Preparation of MoS2 and WS2 catalysts by in situ decomposition of ammonium thiosalts

SBA-15 as Support for MoS2 and Co-MoS2 Catalysts Derived from Thiomolybdate Complexes in the Reaction of HDS of DBT

Synthesis and Characterization of Hexamethylenediammonium Thiometallates as Precursors of MoS2 and WS2 Catalysts: In situ Activation During HDS of DBT

Similar Documents

Unsupported Ni/Mo(W)S2 Catalysts from Hexamethylenediammonium Thiometallates Precursors: In Situ Activation During the HDS of DBT

Comparative Study of WS2 and Co(Ni)/WS2 HDS Catalysts Prepared by ex situ/in situ Activation of Ammonium Thiotungstate

HDS of DBT with Molybdenum Disulfide Catalysts Prepared by In Situ Decomposition of Alkyltrimethylammonium Thiomolybdates

Rationalizing the catalytic performance of γ-alumina-supported Co(Ni)–Mo(W) HDS catalysts prepared by urea-matrix combustion synthesis

Deactivation of MoS2 catalysts during the HDS of thiophene

SBA-15 as Support for Ni–MoS2 HDS Catalysts Derived from Sulfur-containing Molybdenum and Nickel Complexes in the Reaction of HDS of DBT: An All Sulfide Route

High activity Ni/MoS2 catalysts obtained from alkylthiometalate mixtures for the hydrodesulfurization of dibenzothiophene

Preparation of MoS2 and WS2 catalysts by in situ decomposition of ammonium thiosalts

SBA-15 as Support for MoS2 and Co-MoS2 Catalysts Derived from Thiomolybdate Complexes in the Reaction of HDS of DBT

Synthesis and Characterization of Hexamethylenediammonium Thiometallates as Precursors of MoS2 and WS2 Catalysts: In situ Activation During HDS of DBT