Recent advances in process and catalyst for CO2 reforming of methane

Li, Ziwei; Lin, Qian; Li, Min; Cao, Jian; Liu, Fei; Wang, Zhigang; Kawi, Sibudjing

doi:10.1016/j.rser.2020.110312

Cited by 147 publications

(69 citation statements)

References 187 publications

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“…The CH 4 and CO 2 conversions monotonically increase as a function of reaction temperature for all the catalysts, these are agreed well with the endothermic nature of the dry reforming of methane reaction (Equation ( 1)). The CH 4 conversion is lower compared to the CO 2 conversion, which is due to the simultaneous occurrence of a reverse water gas shift reaction (Equation ( 2)) [10,11,20]…”

Section: H2-tpr and H2-tpd Analysismentioning

confidence: 99%

“…As an abundant alternative to petroleum and coal, natural gas and biogas that are rich in CH 4 have become the main energy resources [5][6][7][8]. Therefore, the dry reforming of methane (Equation (1)), which can simultaneously utilize methane and carbon dioxide, is significant to alleviate the energy crisis and to reduce greenhouse gas emissions [9][10][11]. Compared with the partial oxidation and steam reforming of methane, dry reforming of methane is industrially advantageous due to the syngas with a low H 2 /CO molar ratio of nearly 1, which is more appropriate for the synthesis of hydrocarbons with long-chain through the Fischer-Tropsch reaction [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

“…As an economic substitute, Ni-based catalysts have been studied extensively due to the low cost and comparable catalytic activity to noble metals [11,26]. A big drawback of Ni-based catalysts is that they are always suffering from rapid deactivation because of coking deposition and sintering of Ni nanoparticles [20,27,28].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Tuning Metal–Support Interactions on Ni/Al2O3 Catalysts to Improve Catalytic Activity and Stability for Dry Reforming of Methane

Ren

Yue

et al. 2021

Processes

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Ni-based catalysts supported on alumina derived from the pseudo-boehmite prepared by the impregnation method were employed for catalytic dry reforming of methane reaction at the temperature of 550–750 °C. The effect of calcination temperature on physicochemical properties such as the Ni dispersion, reduction degree, nickel crystallite sizes, and metal–support interaction of the catalysts was investigated. The characterization results show that increasing the catalyst calcination temperature leads to the formation of nickel-alumina spinel, which enhances the metal–support interaction and increases the reduction temperature. The nickel nanoparticle size decreases and the effective dispersion increases with the increasing calcination temperature from 450 °C to 750 °C due to the formation of nickel aluminate. The catalyst calcined at 750 °C exhibits the highest CH4 and CO2 conversion owing to the small Ni0 active sites and high Ni dispersion. In a 200 h stability test in dry reforming of methane at 700 °C, the Ni/Al2O3-750 catalyst exhibits excellent catalytic stability and anti-coking ability.

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Section: H2-tpr and H2-tpd Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Tuning Metal–Support Interactions on Ni/Al2O3 Catalysts to Improve Catalytic Activity and Stability for Dry Reforming of Methane

Ren

Yue

et al. 2021

Processes

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“…Carbon coking may not only cause the catalyst deactivation by blocking active sites, but also fracture catalyst granules or cause a high‐pressure drop in the reactor [8] . The agglomeration and sintering of the metal nanoparticles at the surface of support remains another challenge leading to catalytic performance degradation during the DRM reaction [7] . In this case, the growth of nanoparticles on supports due to the weak metal–oxide interactions would lead to the reducing of active sites and hence the performance degradation.…”

Section: Introductionmentioning

confidence: 99%

Active Exsolved Metal–Oxide Interfaces in Porous Single‐Crystalline Ceria Monoliths for Efficient and Durable CH₄/CO₂Reforming

Xiao

Xie

2021

Angew Chem Int Ed

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Dry reforming of CH4/CO2 provides an attractive route to convert greenhouse gas into syngas; however, the resistance to sintering and coking of catalyst remains a fundamental challenge at high operation temperatures. Here we create active and durable metal–oxide interfaces in porous single‐crystalline (PSC) CeO2 monoliths with in situ exsolved single‐crystalline (SC) Ni particles and show efficient dry reforming of CH4/CO2 at temperatures as low as 450 °C. We show the excellent and durable performance with ≈20 % of CH4 conversion and ≈30 % of CO2 conversion even in a continuous operation of 240 hours. The well‐defined active metal–oxide interfaces, created by exsolving SC Ni nanoparticles from PSC NixCe1−xO2 to anchor them on PSC CeO2 scaffolds, prevent nanoparticle sintering and enhance the coking resistance due to the stronger metal–support interactions. Our work would enable an industrially and economically viable path for carbon reclamation, and the technique of creating active and durable metal–oxide interfaces in PSC monoliths could lead to stable catalyst designs for many challenging reactions.

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“…[8] The agglomeration and sintering of the metal nanoparticles at the surface of support remains another challenge leading to catalytic performance degradation during the DRM reaction. [7] In this case,t he growth of nanoparticles on supports due to the weak metal-oxide interactions would lead to the reducing of active sites and hence the performance degradation. Therefore,itisakey challenge to develop highly active and stable catalysts with high resistance to thermal sintering and coking for dry reforming of CH 4 /CO 2 .…”

Section: Introductionmentioning

confidence: 99%

Active Exsolved Metal–Oxide Interfaces in Porous Single‐Crystalline Ceria Monoliths for Efficient and Durable CH₄/CO₂Reforming

Xie

Xiao

2021

Angewandte Chemie

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Dry reforming of CH 4 /CO 2 provides an attractive route to convert greenhouse gas into syngas;h owever,t he resistance to sintering and coking of catalyst remains afundamental challenge at high operation temperatures.H ere we create active and durable metal-oxide interfaces in porous single-crystalline (PSC) CeO 2 monoliths with in situ exsolved single-crystalline (SC) Ni particles and show efficient dry reforming of CH 4 /CO 2 at temperatures as lowa s4 50 8 8C. We show the excellent and durable performance with % 20 %o f CH 4 conversion and % 30 %o fC O 2 conversion even in ac ontinuous operation of 240 hours.T he well-defined active metal-oxide interfaces,c reated by exsolving SC Ni nanoparticles from PSC Ni x Ce 1Àx O 2 to anchor them on PSC CeO 2 scaffolds,p revent nanoparticle sintering and enhance the coking resistance due to the stronger metal-support interactions.Our work would enable an industrially and economically viable path for carbon reclamation, and the technique of creating active and durable metal-oxide interfaces in PSC monoliths could lead to stable catalyst designs for many challenging reactions.

show abstract

Recent advances in process and catalyst for CO2 reforming of methane

Cited by 147 publications

References 187 publications

Tuning Metal–Support Interactions on Ni/Al2O3 Catalysts to Improve Catalytic Activity and Stability for Dry Reforming of Methane

Tuning Metal–Support Interactions on Ni/Al2O3 Catalysts to Improve Catalytic Activity and Stability for Dry Reforming of Methane

Active Exsolved Metal–Oxide Interfaces in Porous Single‐Crystalline Ceria Monoliths for Efficient and Durable CH₄/CO₂Reforming

Active Exsolved Metal–Oxide Interfaces in Porous Single‐Crystalline Ceria Monoliths for Efficient and Durable CH₄/CO₂Reforming

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Recent advances in process and catalyst for CO2 reforming of methane

Cited by 147 publications

References 187 publications

Tuning Metal–Support Interactions on Ni/Al2O3 Catalysts to Improve Catalytic Activity and Stability for Dry Reforming of Methane

Tuning Metal–Support Interactions on Ni/Al2O3 Catalysts to Improve Catalytic Activity and Stability for Dry Reforming of Methane

Active Exsolved Metal–Oxide Interfaces in Porous Single‐Crystalline Ceria Monoliths for Efficient and Durable CH4/CO2Reforming

Active Exsolved Metal–Oxide Interfaces in Porous Single‐Crystalline Ceria Monoliths for Efficient and Durable CH4/CO2Reforming

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Active Exsolved Metal–Oxide Interfaces in Porous Single‐Crystalline Ceria Monoliths for Efficient and Durable CH₄/CO₂Reforming

Active Exsolved Metal–Oxide Interfaces in Porous Single‐Crystalline Ceria Monoliths for Efficient and Durable CH₄/CO₂Reforming