Site-dependent reactivity of MoS2 nanoparticles in hydrodesulfurization of thiophene

N Salazar, S Rangarajan… - Nature …, 2020 - nature.com
The catalytically active site for the removal of S from organosulfur compounds in catalytic
hydrodesulfurization has been attributed to a generic site at an S-vacancy on the edge of …

Predictions of thermodynamic properties for hydrogen sulfide

CS Jia, J Li, YS Liu, XL Peng, X Jia, LH Zhang… - Journal of Molecular …, 2020 - Elsevier
Equilibrium conditions of many chemical and physical processes can be determined from
minimization of the Gibbs free energy of the system. Suitable closed-form representations of …

On the Preferred Active Sites of Promoted MoS2 for Hydrodesulfurization with Minimal Organonitrogen Inhibition

S Rangarajan, M Mavrikakis - Acs Catalysis, 2017 - ACS Publications
Hydrodesulfurization is a process to produce ultralow-sulfur diesel fuel. Although promoted
molybdenum sulfide (MoS2) catalysts have been used industrially for several decades, the …

Applications of high-resolution scanning probe microscopy in hydroprocessing catalysis studies

F Besenbacher, JV Lauritsen - Journal of Catalysis, 2021 - Elsevier
Scanning probe microscopy offers real space atomic and nanoscale imaging of surfaces
and supported nanoparticles, and these techniques are used in a planar catalyst model …

DFT insights into the stacking effects on HDS of 4, 6-DMDBT on Ni-Mo-S corner sites

X Liu, Q Wei, W Huang, Y Zhou, P Zhang, Z Xu - Fuel, 2020 - Elsevier
By using density functional theory (DFT) calculation and dispersion corrections of DFT-D
method, the stacking effect of unsupported multilayer NiMoS nanocluster on …

DFT insights into the formation of sulfur vacancies over corner/edge site of Co/Ni-promoted MoS2 and WS2 under the hydrodesulfurization conditions

P Zheng, T Li, K Chi, C Xiao, J Fan, X Wang… - Applied Catalysis B …, 2019 - Elsevier
The formations of sulfur vacancies over different active sites of Mo-based and W-based
active phases are investigated under the traditional hydrodesulfurization (HDS) reaction …

Catalytic characteristics of active corner sites in CoMoS nanostructure hydrodesulfurization–A mechanism study based on DFT calculations

S Ding, S Jiang, Y Zhou, Q Wei, W Zhou - Journal of Catalysis, 2017 - Elsevier
A non-periodic computational Co Mo S model consisting of un-promoted Mo-edge (Mo-E),
Co-mixed Mo-edge (Mo-X), Co-edge (Co-E) and corner (Corner) sites was used to examine …

Influence of sulfur vacancy on thiophene hydrodesulfurization mechanism at different MoS2 edges: A DFT study

P Zheng, A Duan, K Chi, L Zhao, C Zhang, C Xu… - Chemical Engineering …, 2017 - Elsevier
The detailed hydrogenation (HYD) and direct desulfurization (DDS) pathways of thiophene
over the sulfur vacancy of different MoS 2 edge structures were investigated by density …

DFT insights into the competitive adsorption of sulfur-and nitrogen-containing compounds and hydrocarbons on Co-promoted molybdenum sulfide catalysts

S Rangarajan, M Mavrikakis - Acs Catalysis, 2016 - ACS Publications
The adsorption of 20 nitrogen-/sulfur-containing and hydrocarbon compounds on the sulfur
edge of cobalt-promoted molybdenum sulfide (CoMoS) catalyst was studied using density …

Dynamic catalytic adsorptive desulfurization of real diesel over ultra‐stable and low‐cost silica gel‐supported TiO2

X Ren, Z Liu, L Dong, G Miao, N Liao, Z Li… - AIChE Journal, 2018 - Wiley Online Library
To develop dynamic ultra‐deep catalytic adsorptive desulfurization (CADS) of real diesel
using ultra‐stable and low‐cost silica gel‐supported TiO2 is the aim of the work. A two‐stage …