Low-temperature hydrolysis of carbon disulfide using the FeCu/AC catalyst modified by non-thermal plasma

Yi, Honghong; Zhao, Shunzheng; Tang, Xiaolong; Song, Changchun; Gao, Feifei; Zhang, Bowen; Wang, Zhixiang; Zuo, Yanran

doi:10.1016/j.fuel.2014.03.021

Cited by 42 publications

(14 citation statements)

References 26 publications

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“…The simplified reaction mechanisms of ozone have been and ·OH are mainly formed in the liquid phase(Zhang, 2010;Yi, 2014). The radical ·OH is considered to be the most important oxidant to complete mineralization of organic molecules.…”

mentioning

confidence: 99%

Degradation of methylene blue using double-chamber dielectric barrier discharge reactor under different carrier gases

Wang

Dong

Meng

et al. 2017

Chemical Engineering Science

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mentioning

confidence: 99%

Degradation of methylene blue using double-chamber dielectric barrier discharge reactor under different carrier gases

Wang

Dong

Meng

et al. 2017

Chemical Engineering Science

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“…An evident improvement in the catalytic properties after the plasma modification of the asprepared catalysts has recently been reported more and more often. Such catalysts as Pd/ TiO 2 for the selective hydrogenation of acetylene [64,65], Fe-Cu on active carbon for the hydrolysis of carbon disulfide [66], CuO nanowires for oxidation of carbon monoxide [67], or CuO/TiO 2 employed in the reduction of nitrogen oxides [68] have shown higher efficiencies, only when the plasma treatment process was added after the catalyst preparation. Of course, in any case, it is necessary to choose an appropriate type of plasma and select optimized parameters of the treatment process.…”

Section: Plasma Modification Of As-prepared "Conventional" Catalystsmentioning

confidence: 99%

Cold Plasma Produced Catalytic Materials

Tyczkowski¹

2016

Plasma Science and Technology - Progress in Physical States and Chemical Reactions

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The cold plasma techniques are widely applied to create new materials possessing unique properties, which cannot be prepared by any other methods. "mong the many interesting substances produced with the participation of cold plasma, a special place is occupied by materials with catalytic properties. The chapter gives a brief review of various cold plasma methods used for the preparation of catalytic materials from the plasma modification of conventional catalysts via plasma-enhanced classical synthesis of catalysts to the advanced thin catalytic films fabricated by plasma sputtering processes but primarily by plasma deposition from metalorganic precursors PECVD . Recently, the catalytic films have attracted considerable attention due to the possibility of depositing them as very thin coatings on virtually all supports without any change in their geometry. Such coatings open the way for new reactor designs, so-called structured reactors, designated for various chemical processes. They can also be used as catalytic deposit on the surface of electrodes for fuel cells and photoelectrodes for water splitting processes. Recent developments in this field and further prospects for thin catalytic films are discussed, all the more so because it is one of the main areas of research in our department.Keywords: Catalysts, plasma treatment, PECVD, structured reactors, fuel cells, water splitting . IntroductionFor a long time, plasma techniques have been used in the creation of new materials possessing unique properties, which cannot be fabricated by other methods. " particularly important technique, giving plenty of possibilities, is the plasma deposition of entirely new, advanced materials in the form of solid coatings having unusual molecular structure and sophisticated nanomorphology. The plasma processes can also be used to modify conventional materials through treating them during or after "classical" synthesis, which generally leads to new © 2016 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.substances with disparate properties, often more suitable than those of the unmodified materials."mong the many interesting products fabricated by plasma techniques, materials with catalytic properties occupy a special place. There exist a lot of catalytic reactions, for example, combustion of organic volatile compounds, CO methanation, Fischer Tropsch synthesis, water photo-splitting, fuel cell electrode processes, and many others, which challenge chemists all over the world to seek better catalysts or more effective catalyst preparation methods. It seems that the plasma techniques pave the way for novel solutions in this field.In general, plasma techniques used in the preparation of catalysts can be categorized into one of two groups depending on the plasma type thermal equilibrium pl...

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“…In addition, Yi et al, reported that the hydroxyl groups and oxygen free radicals on the catalyst's surface could enhance the catalytic performance for CS 2 . 20 Li et al, also investigated the COS hydrolysis mechanism. The results indicated that the nucleophilic additions of water across the C=O or C=S bonds of COS were competitive.…”

Section: Introductionmentioning

confidence: 99%

Deactivation mechanism of the simultaneous removal of carbonyl sulphide and carbon disulphide over Fe–Cu–Ni/MCSAC catalysts

Song

Wang

et al. 2017

J Chem Sci

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The deactivation mechanism of the simultaneous removal of COS and CS 2 over a Fe-Cu-Ni/MCSAC catalyst was investigated using SEM/EDS, XPS and in situ DRIFTS methods. The results show that the catalytic hydrolysis of COS and CS 2 over the Fe-Cu-Ni/MCSAC catalyst involves two steps: hydrolysis of COS/CS 2 and oxidation of H 2 S. The SEM/EDS and XPS results indicate that that catalytic hydrolysis of CS 2 can be achieved by the actions of alkaline groups and active components. When O 2 was introduced into the system, oxidation of H 2 S occurred viaH 2 S → S → SO 2− 4 /sulphate. In situ DRIFTS experiments indicated that the formation of sulphate may occur as follows: (a) H 2 S + O 2 → S + H 2 O, (b) S+O 2 → SO , (c)-COO+H 2 S →-CH+S-O, (d) C-OH+H 2 S →-CH+S-O. The in situ DRIFTS experiments also indicated that the C-OH groups,-COO groups and O 2 played important roles in the deactivation of the catalyst, which was consistent with the XPS results. Meanwhile, the SO 2− 4 /sulphate content increased during the reaction, which led to its occupancy of the catalyst's surface activity sites. Additionally, the alkaline groups and active components were removed, which could also result in the deactivation of the catalysts. Keywords. Deactivation mechanism; simultaneous catalytic hydrolysis of CS 2 and COS; Fe-Cu-Ni/MCSAC catalyst; closed carbide furnace tail gas.

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Low-temperature hydrolysis of carbon disulfide using the FeCu/AC catalyst modified by non-thermal plasma

Cited by 42 publications

References 26 publications

Degradation of methylene blue using double-chamber dielectric barrier discharge reactor under different carrier gases

Degradation of methylene blue using double-chamber dielectric barrier discharge reactor under different carrier gases

Cold Plasma Produced Catalytic Materials

Deactivation mechanism of the simultaneous removal of carbonyl sulphide and carbon disulphide over Fe–Cu–Ni/MCSAC catalysts

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