Sulfidation of 2D transition metals (Mo, W, Re, Nb, Ta): thermodynamics, processing, and characterization
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Materials Science"
DOI: 10.1007/s10853-017-1228-x
Abstract: Sulfidation of selected transition metal thin films (Mo, W, Re, Nb, Ta) was combined with thermodynamic calculations to study the synthesis of transition metal dichalcogenides (TMDCs) and understand variations among the metals as well as… read more here.
Keywords: sulfidation; transition; thermodynamics; nbs2 tas2 ... See more keywords
High pressure cell for edge jumping X-ray absorption spectroscopy: Applications to industrial liquid sulfidation of hydrotreatment catalysts
Sign Up to like & getrecommendations! Published in 2019 at "Catalysis Today"
DOI: 10.1016/j.cattod.2019.01.081
Abstract: Abstract An analytical cell to perform liquid sulfidation (30 bar, H2/gas oil/4% DMDS) of HDS catalysts in industrial conditions was developed. It enables the alternate recording of time-resolved Mo and Co K edges X-ray absorption spectra… read more here.
Keywords: liquid sulfidation; industrial liquid; high pressure; spectroscopy ... See more keywords
First in situ temperature quantification of CoMoS species upon gas sulfidation enabled by new insight on cobalt sulfide formation
Sign Up to like & getrecommendations! Published in 2020 at "Catalysis Today"
DOI: 10.1016/j.cattod.2020.06.065
Abstract: Abstract Insights into the cobalt sulfide formation upon sulfidation (10 % H2S/H2) of cobalt-based materials with 4 wt % CoO supported on alumina or silica were obtained by Quick-X-ray absorption spectroscopy monitoring analysed by multivariate… read more here.
Keywords: sulfidation; species upon; cobalt; temperature ... See more keywords
Synthesis and electrochemical performance of core-shell NiCo2S4@nitrogen, sulfur dual-doped carbon composites via confined sulfidation strategy in a polydopamine nanoreactor
Sign Up to like & getrecommendations! Published in 2019 at "Composites Communications"
DOI: 10.1016/j.coco.2019.01.001
Abstract: Abstract Nickel cobalt binary sulfides (NiCo2S4) have attracted huge attention as a promising anode material for lithium-ion batteries (LIBs). Herein, a polydopamine (PDA) shell with a controlled thickness was in-situ polymerized on a nanohorn-shaped Ni-Co… read more here.
Keywords: nitrogen sulfur; sulfidation; shell; carbon ... See more keywords
Electrochemical sulfidation of WS2 nanoarrays: Strong dependence of hydrogen evolution activity on transition metal sulfide surface composition
Sign Up to like & getrecommendations! Published in 2017 at "Electrochemistry Communications"
DOI: 10.1016/j.elecom.2017.06.016
Abstract: Abstract The activity of transition metal sulfides for the hydrogen evolution reaction (HER) can be increased by sulfur-enrichment of active metal-sulfide sites. In this report, we investigate the electrochemical sulfidation of atmospherically aged WS 2… read more here.
Keywords: sulfidation; transition metal; activity transition; metal ... See more keywords
In situ and downstream sulfidation reactivity of PbO and ZnO during pyrolysis and hydrogenation of a high–sulfur lignite
Sign Up to like & getrecommendations! Published in 2019 at "International Journal of Hydrogen Energy"
DOI: 10.1016/j.ijhydene.2018.10.041
Abstract: Abstract Economical valorization of low quality, high sulfur feedstocks is an important challenge. Most of the valorization processes start from pyrolysis, with a significant amount of evolution of sulfur containing compounds. This study addresses in… read more here.
Keywords: high sulfur; pbo zno; sulfidation; sulfur ... See more keywords
Anchoring ultrasmall FeIII-based nanoparticles on silica and titania mesostructures for syngas H2S purification
Sign Up to like & getrecommendations! Published in 2020 at "Microporous and Mesoporous Materials"
DOI: 10.1016/j.micromeso.2020.110062
Abstract: Abstract Mesostructured titania (Anatase) and silica (MCM-41) were proposed as supports to design highly active, selective, and regenerable FeIII-based nanostructured sorbents for mid-temperature H2S removal in a model sour syngas. The resulting sorbents (Fe–SiO2 and… read more here.
Keywords: ultrasmall feiii; active phase; sulfidation; silica titania ... See more keywords
New Insight into a Fenton-like Reaction Mechanism over Sulfidated β-FeOOH: Key Role of Sulfidation in Efficient Iron(III) Reduction and Sulfate Radical Generation.
Sign Up to like & getrecommendations! Published in 2022 at "Environmental science & technology"
DOI: 10.1021/acs.est.2c00132
Abstract: Sulfidation can greatly improve the efficiency of utilization of reducing equivalents for contaminant removal; however, whether this method benefits Fenton-like reactions or not and the possible mechanism are not well understood. In this study, we… read more here.
Keywords: fenton; fenton like; iii; mechanism ... See more keywords
Transformations of Ferrihydrite-Extracellular Polymeric Substance Coprecipitates Driven by Dissolved Sulfide: Interrelated Effects of Carbon and Sulfur Loadings.
Sign Up to like & getrecommendations! Published in 2023 at "Environmental science & technology"
DOI: 10.1021/acs.est.2c06921
Abstract: The association of poorly crystalline iron (hydr)oxides with organic matter (OM), such as extracellular polymeric substances (EPS), exerts a profound effect on Fe and C cycles in soils and sediments, and their behaviors under sulfate-reducing… read more here.
Keywords: ferrihydrite extracellular; transformations ferrihydrite; substance coprecipitates; extracellular polymeric ... See more keywords
Performance Enhancement of Biogenetic Dulfidated Zero-Valent Iron for Trichloroethylene Degradation: Role of Extracellular Polymeric Substances.
Sign Up to like & getrecommendations! Published in 2023 at "Environmental science & technology"
DOI: 10.1021/acs.est.2c07289
Abstract: Chemical sulfidation has been considered as an effective strategy to improve the reactivity of zero-valent iron (S-ZVI). However, sulfidation is a widespread biogeochemical process in nature, which inspired us to explore the biogenetic sulfidation of… read more here.
Keywords: valent iron; sulfidation; extracellular polymeric; zvi ... See more keywords
Intermediate Species Revealed during Sulfidation of Bimetallic Hydrotreating Catalyst: A Multivariate Analysis of Combined Time-Resolved Spectroscopies
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.7b03735
Abstract: For the first time, the sulfidation process of a bimetallic NiMo catalyst supported on alumina has been followed by combining time-resolved laser Raman spectroscopy (LRS) and X-ray absorption spectroscopy (XAS) quasi simultaneously at both Ni… read more here.
Keywords: sulfidation; time resolved; spectroscopy; catalyst ... See more keywords