Review
Chemistry, Physical
Fariborz Sharifianjazi, Amirhossein Esmaeilkhanian, Leila Bazli, Sara Eskandarinezhad, Samad Khaksar, Parisa Shafiee, Mohammad Yusuf, Bawadi Abdullah, Peyman Salahshour, Farnaz Sadeghi
Summary: This paper reviews the recent advances in Ni- and Co-based nanocatalysts for dry reforming of CH4, including the use of different supports, promoters, and new structures.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Review
Energy & Fuels
Shuowen Guo, Yinghui Sun, Yanbin Zhang, Chenghu Zhang, Ying Li, Jie Bai
Summary: This article provides an overview of dry reforming of methane (DRM) reaction and its application in catalysts, with a focus on the development and limitations of NiCo bimetallic catalysts. The correlation between component properties and catalytic performances, the effect of preparation methods, and the reaction mechanisms of the catalysts are discussed. The deactivation issues caused by carbon deposition and bimetallic sintering are highlighted, and the role of promoters in overcoming these issues is emphasized.
Article
Energy & Fuels
Anh Ngoc T. Cao, Cham Q. Pham, Tung M. Nguyen, Thuan Van Tran, Pham T. T. Phuong, Dai-Viet N. Vo
Summary: Dysprosium (Dy) promoted Co/Al2O3 catalysts with different Dy loadings were synthesized and found to enhance the basicity and activity of the catalysts for methane dry reforming. The addition of Dy reduced the crystallite size of Co3O4, resulting in better metal dispersion and higher catalytic performance. The optimal Dy loading was found to be 0.3 wt%, achieving the highest CH4 conversion and H-2 and CO yields.
Article
Energy & Fuels
Linghui Lyu, Makpal Shengene, Qingxiang Ma, Jian Sun, Xinhua Gao, Hui Fan, Jianli Zhang, Tian-Sheng Zhao
Summary: In this study, a bimodal pore structure Ni-Co catalyst was prepared and applied for dry reforming of methane (DRM). The NC0.5-M100-MA catalyst exhibited the best catalytic performance at 700 degrees Celsius, with improved stability due to the synergistic effect of Ni-Co alloy and macro-meso bimodal pore structure.
Article
Chemistry, Physical
Daichi Takami, Junya Tsubakimoto, Wirya Sarwana, Akira Yamamoto, Hisao Yoshida
Summary: The design of optimized photothermal catalysts is essential for the efficient conversion of CO2 into syngas using solar energy. This study demonstrated that silica-supported nickel catalysts prepared via Ni phyllosilicate exhibited superior catalytic performance and resistance to sintering and carbon deposition under visible and near-infrared light. The loading of nickel had positive and negative effects on the surface temperature and light absorption capacity, which influenced the photothermal catalytic activity for methane dry reforming.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Thanh Son Phan, Doan Pham Minh
Summary: Dry reforming of methane (DRM) is a promising process for producing synthetic gas, and the design of an effective catalyst is crucial. In this study, nickel catalysts supported by calcium hydroxyapatite (HAP) and HAP-doped magnesium (Mg_HAP) were synthesized and evaluated in the DRM reaction. The Ni/HAP and Ni/Mg_HAP catalysts showed outstanding performance due to the tunable acidity-basicity of the supports, strong metal-support interaction, and good thermal stability of nickel nanoparticles. The main products were H2 and CO, with stable selectivity around 85%, while H2O and solid carbon were byproducts with 5-10% selectivity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Jehad Saleh, Ahmed Sadeq Al-Fatesh, Ahmed Aidid Ibrahim, Francesco Frusteri, Ahmed Elhag Abasaeed, Anis Hamza Fakeeha, Fahad Albaqi, Khalid Anojaidi, Salwa B. B. Alreshaidan, Ibrahim Albinali, Abdulrahman A. A. Al-Rabiah, Abdulaziz Bagabas
Summary: The impact of rhodium oxide (Rh2O3) doping on the activity and stability of nickel catalysts supported over yttria-stabilized zirconia in dry reforming of methane (DRM) was studied at 800 degrees C using various characterization techniques. The addition of 4.0 wt.% Rh2O3 enhanced the activation of the catalysts and reduced the surface basicity, leading to optimal conversions of CH4 and CO2 of around 89% and 92%, respectively. The incorporation of Rh2O3 in the range of 0.0-4.0 wt.% loading improved DRM and reduced the reverse water gas shift effect, resulting in increased stability by decreasing carbon formation on the catalysts.
Article
Chemistry, Physical
Robert Cherbanski, Tomasz Kotkowski, Eugeniusz Molga
Summary: Nickel-based catalysts used in the dry reforming of methane (DRM) face issues of coking and sintering, which limit their industrial application. The addition of an anti-coking additive (CaO) to a commercial nickel catalyst was investigated using thermogravimetric analysis. It was observed that the catalyst sintered at temperatures between 850 and 900 degrees C, leading to permanent deactivation. The coking and carbon gasification rates were found to be equal at temperatures of 796-860 degrees C for the tested Ni/CaO-Al2O3 catalyst, depending on the heating rate.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
K. S. Nisa, V. Suendo, I. C. Sophiana, H. Susanto, A. Kusumaatmaja, N. Nishiyama, Y. W. Budhi
Summary: This study investigated the activity and stability of MCM-41-based catalysts for dry reforming of methane (DRM). The results showed that catalysts with Mg and Ca promoters exhibited the highest conversion rates, and the addition of a base promoter reduced carbon deposition.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Xiaodi Zhang, Jiming Wang, Guojie Zhang, Jun Liu, Ying Wang, Yuqing Zhao, Guoqiang Li
Summary: To enhance the DRM reaction performance of catalysts, Co-Ni/WC-AC catalysts are prepared by impregnation with WC-AC as the support. BET, XRD, H2-TPR, XPS, and TG are used to characterize the structural features of the catalysts. The introduction of Ni in the 20Co/WC-AC catalyst promotes the conversion of W species to WC, improving the activity and sintering resistance of the catalysts. Different ratios of Ni also have a significant effect on the chemical environment on the catalyst surface.10Co-10Ni/WC-AC catalysts exhibit high surface Oa and Ob contents, and demonstrate excellent catalytic performance with stable conversion rates of CH4 and CO2 at 800 degrees C.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Applied
Marco Pizzolato, Giulia Da Pian, Elena Ghedini, Alessandro Di Michele, Federica Menegazzo, Giuseppe Cruciani, Michela Signoretto
Summary: The effects of vanadium promotion on gamma-alumina supported nickel catalysts for methane dry reforming were investigated. The introduction of vanadium was crucial to hinder catalyst deactivation by coke deposition. The formation of nanotubes was reduced and hydrogen yield increased. When coupled with calcium, selectivity toward hydrogen/syngas production was improved. Under concentrated gases, vanadium was fundamental for a higher activity, with an increase of 30% and 15% in CH4 and CO2 conversions compared with the non-doped catalyst.
Article
Energy & Fuels
Cham Q. Pham, Anh Ngoc T. Cao, Pham T. T. Phuong, Le Kim Hoang Pham, Thi Tuong Vi Tran, Thanh H. Trinh, Dai-Viet N. Vo, Thi Phuong Thuy Bui, Tung M. Nguyen
Summary: Dry reforming of methane is a promising solution for reducing greenhouse gas emissions. This study found that the introduction of rare-earth metals improved the dispersion and reducibility of the catalyst, leading to enhanced carbon dioxide adsorption and activation. The modified catalyst showed superior performance and reduced the formation of amorphous carbon.
JOURNAL OF THE ENERGY INSTITUTE
(2022)
Article
Chemistry, Physical
Xiaoxuan Duan, Jinhua Pan, Xinru Yang, Chunsheng Wan, Xingyi Lin, Dalin Li, Lilong Jiang
Summary: NieCo/Mg(Al)O alloy catalysts with different Co/Ni molar ratios were prepared from Ni-and Co-substituted Mg-Al hydrotalcite-like compounds as precursors. These catalysts showed high activity and stability in dry reforming of methane, effectively inhibiting methane decomposition and coke deposition. Alloying Ni with Co promoted CO2 adsorption/activation and the elimination of carbon species, resulting in improved coke resistance. Hydrotalcite-derived Ni-Co/Mg(Al)O catalysts exhibited better catalytic performance compared to other Ni-Co catalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Anh Ngoc T. Cao, Cham Q. Pham, Le Kim Hoang Pham, Dang Le Tri Nguyen, Pham T. T. Phuong, Thi Tuong Vi Tran, Van-Phuoc Nguyen, Thanh Binh Nguyen, Quyet Van Le, Ngoc Anh Nguyen, Tung M. Nguyen
Summary: The metal-support interface plays a crucial role in the dispersion and catalytic activity of catalysts. This study investigated the effect of cerium on cobalt catalyst supported on gamma-alumina and found that cerium promoted the dispersion and reducibility of cobalt, leading to improved conversion of methane and carbon dioxide.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Robert Franz, Donato Pinto, Evgeny A. Uslamin, Atsushi Urakawa, Evgeny A. Pidko
Summary: This study investigates the use of Ni/Al2O3 catalysts for dry reforming of methane, with a focus on the effects of different promoters on catalyst stability. Higher iron loading on the catalyst leads to lower coke formation during dry reforming. Additionally, promoters with high CO2 affinity can accelerate catalyst oxidation during regeneration, ultimately leading to sintering and increased coke formation. Promoters with significant CO2 interaction are more effective on sintered catalyst samples compared to unpromoted Ni/Al2O3.
