Influence of tungsten loading on CO2
/O2
 reforming of methane over Co-W-promoted NiO-Al2
O3
 nanocatalyst designed by sol-gel-plasma

Sajjadi, Seyed Mehdi; Haghighi, Mohammad

doi:10.1002/er.4316

Cited by 14 publications

(3 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…for methane reforming catalysts that differ in particle size, material, e.g. cobalt, nickel or noble metal based catalysts [52,53], catalyst loading [54] and promoter choices [55], along with different catalyst supports [56] that have been employed. These differences make the comparison of reports obtained for diverse plasma assisted catalytic reactors and the interpretation of plasma catalysis data challenging [57].…”

Section: Introductionmentioning

confidence: 99%

From thermal catalysis to plasma catalysis: a review of surface processes and their characterizations

Zhang¹,

Oehrlein²

2021

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

The use of atmospheric pressure plasma to enhance catalytic chemical reactions involves complex surface processes induced by the interactions of plasma-generated fluxes with catalyst surfaces. Industrial implementation of plasma catalysis necessitates optimizing the design and realization of plasma catalytic reactors that enable chemical reactions that are superior to conventional thermal catalysis approaches. This requires the fundamental understanding of essential plasma-surface interaction mechanisms of plasma catalysis from the aspect of experimental investigation and theoretical analysis or computational modeling. In addition, experimental results are essential to validate the relative theoretical models and hypotheses of plasma catalysis that was rarely understood so far, compared to conventional thermal catalysis. This overview focuses on two important application areas, nitrogen fixation and methane reforming, and presents a comparison of important aspects of the state of knowledge of these applications when performed using either plasma-catalysis or conventional thermal catalysis. We discuss the potential advantage of plasma catalysis over thermal catalysis from the aspects of plasma induced synergistic effect and in situ catalyst regeneration. In-situ/operando surface characterization of catalysts in plasma catalytic reactors is a significant challenge since the high pressure of realistic plasma catalysis systems preclude the application of many standard surface characterization techniques that operate in a low-pressure environment. We present a review of the status of experimental approaches to probe gas-surface interaction mechanisms of plasma catalysis, including an appraisal of demonstrated approaches for integrating surface diagnostic tools into plasma catalytic reactors. Surface characterizations of catalysts in plasma catalytic reactors demand thorough instrumentations of choices of plasma sources, catalyst forms, and the relative characterization tools. We conclude this review by presenting open questions on self-organized patterns in plasma catalysis.

show abstract

Section: Introductionmentioning

confidence: 99%

From thermal catalysis to plasma catalysis: a review of surface processes and their characterizations

Zhang¹,

Oehrlein²

2021

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

show abstract

“…The characteristics of the catalytic surface influence both the generation and adsorption of plasma-activated atomic species. Sajjadl et al [65] used glow plasma and the sol-gel method to study a CoW−NiAl2O4 catalyst (Figure 10(a)). After being treated with glow plasma for 45 min, the catalyst obtained a higher specific surface area and smaller particle size.…”

Section: Atmospheric-pressure Plasma Jet (Appj)mentioning

confidence: 99%

A review of cold plasma for catalyst synthesis and modification

Tian,

Bi,

Lin

et al. 2024

Clean Energy Sci. Technol.

View full text Add to dashboard Cite

Cold plasma has been extensively studied and developed in the field of energy storage and conversion, with a focus on its ability to assist in catalyst synthesis, surface modification, the introduction of heteroatoms, the generation of defects and vacancies, the improvement of catalyst dispersion, and the reduction of particle size. In contrast to conventional calcination and chemical methods, the energy from cold plasma can be transferred directly to the catalyst and carrier during the treatment process, which can improve the interaction between the loaded catalyst and carrier by changing the internal structure and surface morphology of the catalyst. Therefore, these properties make cold plasma quite green, safe, and efficient for catalyst synthesis and modification. In this paper, the characteristics and applications of various cold plasma technologies, as well as the synergistic treatment of cold plasma technology with thermodynamic principles on catalysts, are analyzed. Based on current research progress, this paper provides a summary and outlook on the synthesis and modification of catalysts using cold plasma.

show abstract

“…But the pure metal catalyst cannot meet the demand. Doping noble metals, such as Rh 11‐13 , Pt 14,15 , Pd 16 and else 17 , or non‐noble metals, such as Co 18,19 , Cu 20 , Fe 21,22 and Mg 23 , in another metal to form bimetallic catalyst has been studied extensively in experiments 24 and DFT calculations 25,26 . The energy barrier completely dissociated by CH 4 on the surface of M‐doped Cu(111)(M = Pt, Rh, Ni, Pd) was studied.…”

Section: Introductionmentioning

confidence: 99%

Comparative density functional theory study of carbon formation and removal mechanism on Rh modified Ni‐based catalyst in theCH₄/CO₂reforming

et al. 2021

View full text Add to dashboard Cite

Summary Rh catalyst shows promising performance for coke resistance in the CH4/CO2 reforming reaction. In this study, a single atom Rh was added to the surface of Ni(111) by doping and adsorbing ways, and the performance of these surfaces was compared with the pure Ni(111) through density functional theory (DFT) calculation. The reactions related to the carbon formation were studied to obtain the favored adsorption site and dominant reaction paths on three surfaces. A good linear relationship between the charge difference and the reaction barrier was proposed. On the Ni(111) surface, the highest energy barrier of CH* oxidation and decomposition is 1.24 and 1.30 eV, respectively, thus these two reaction paths are dominant. The most favorable pathway for the Rh/Ni(111) is CH* + O* → CHO* → CO* + H*, with the highest energy barrier of 1.34 eV. However, C* is more likely to be converted into C‐C (C2) than oxidized on all three catalyst surfaces. As a result, Rh/Ni(111) surface shows better catalytic activity thermodynamically and more superior carbon deposition resistance. In general, compared with pure Ni catalyst, the modification of Rh could manipulate the reaction path of CH* consumption, which could inhibit the direct decomposition of CH*, and finally suppress the carbon deposition.

show abstract

Influence of tungsten loading on CO₂ /O₂ reforming of methane over Co-W-promoted NiO-Al₂ O₃ nanocatalyst designed by sol-gel-plasma

Cited by 14 publications

References 50 publications

From thermal catalysis to plasma catalysis: a review of surface processes and their characterizations

From thermal catalysis to plasma catalysis: a review of surface processes and their characterizations

A review of cold plasma for catalyst synthesis and modification

Comparative density functional theory study of carbon formation and removal mechanism on Rh modified Ni‐based catalyst in theCH₄/CO₂reforming

Contact Info

Product

Resources

About

Influence of tungsten loading on CO2 /O2 reforming of methane over Co-W-promoted NiO-Al2 O3 nanocatalyst designed by sol-gel-plasma

Cited by 14 publications

References 50 publications

From thermal catalysis to plasma catalysis: a review of surface processes and their characterizations

From thermal catalysis to plasma catalysis: a review of surface processes and their characterizations

A review of cold plasma for catalyst synthesis and modification

Comparative density functional theory study of carbon formation and removal mechanism on Rh modified Ni‐based catalyst in theCH4/CO2reforming

Contact Info

Product

Resources

About

Influence of tungsten loading on CO₂ /O₂ reforming of methane over Co-W-promoted NiO-Al₂ O₃ nanocatalyst designed by sol-gel-plasma

Comparative density functional theory study of carbon formation and removal mechanism on Rh modified Ni‐based catalyst in theCH₄/CO₂reforming