Article
Energy & Fuels
Guohui Xuan, Fang Liu, Fan Zhang, Yiling Hu, Jinhan Miao, Li Yang
Summary: This study improves catalyst stability by adding a trace amount of H2S in direct methane decomposition, leading to increased methane conversion and delayed deactivation time. H2S changes the carbon deposition morphology of the catalyst, promoting methane molecule adsorption on the catalyst surface.
Article
Chemistry, Multidisciplinary
Ji Su Yun, Ji Hong Kim, Seok Chang Kang, Ji Sun Im
Summary: The thermocatalytic decomposition of methane is a promising method for hydrogen production. In this study, the behavior of methane decomposition and deactivated catalysts were analyzed, and it was found that the activity of the activated carbon catalyst is mainly affected by the specific surface area and defect sites.
Article
Energy & Fuels
Uneeb Masood Khan, Qassam Sarmad, Mustafa Anwar, Asif Hussain Khoja, S. A. Muhammed Ali, Zuhair S. Khan, Muhammad Hassan, Sehar Shakir
Summary: In this study, cobalt loaded STF double perovskite was synthesized using a modified nitrate combustion method for methane decomposition. 5% Co/STF exhibited high CH4 conversion and H2 yield, showing excellent catalytic activity and stability.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Energy & Fuels
G. Gomez-Pozuelo, P. Pizarro, J. A. Botas, D. P. Serrano
Summary: This study reports the use of silica materials produced from rice husk as DeCH(4) catalysts, with silica samples showing large surface area and amorphous nature exhibiting the highest catalytic activity and remarkable resistance against deactivation.
Review
Chemistry, Multidisciplinary
Cham Q. Pham, Tan Ji Siang, Ponnusamy Senthil Kumar, Zainal Ahmad, Leilei Xiao, Mahadi B. Bahari, Anh Ngoc T. Cao, Natarajan Rajamohan, Amjad Saleh Qazaq, Amit Kumar, Pau Loke Show, Dai-Viet N. Vo
Summary: Dihydrogen (H-2), commonly known as hydrogen, has attracted research interest due to its potential applications in fuel cells, vehicles, pharmaceuticals, and gas processing. The catalytic decomposition of methane is a promising technology to generate COx-free hydrogen and carbon nanomaterials, which have various applications in electronics, fuel cells, clothing, as well as biological and environmental treatments. This paper reviews the decomposition of methane on Ni-based catalysts and investigates the factors influencing the reaction.
ENVIRONMENTAL CHEMISTRY LETTERS
(2022)
Article
Engineering, Environmental
Raminda Rattanaamonkulchai, Thunyathon Kludpantanapan, Atthapon Srifa, Wanida Koo-Amornpattana, Weerawut Chaiwat, Chularat Sakdaronnarong, Tawatchai Charinpanitkul, Suttichai Assabumrungrat, Suwimol Wongsakulphasatch, Pau-Loke Show, Ryo Watanabe, Choji Fukuhara, Sakhon Ratchahat
Summary: In this study, the simultaneous production of hydrogen and carbon nanotubes from direct conversion of biogas was investigated. It was found that Co/MgO catalyst showed the highest performance, while Fe/MgO catalyst showed the lowest catalytic activity. In addition, the addition of Mo in bimetallic catalysts improved the production yields of H2 and CNTs.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Energy & Fuels
Shun Zhao, Yun Zhang, Yunfei Wu, Lijun Zhang, Haoquan Hu, Lijun Jin
Summary: Catalytic methane decomposition (CMD) is a promising route for H2 production. In this study, MOF-derived hierarchical carbon catalysts were prepared and their catalytic performances were investigated. The results showed that by adjusting the carbonization temperature and carbon source, the morphology and pore structure of the derived carbon materials can be improved, leading to enhanced catalytic performance. Increasing the reaction temperature also significantly enhanced the catalytic performance.
JOURNAL OF THE ENERGY INSTITUTE
(2022)
Article
Green & Sustainable Science & Technology
Ashton Swartbooi, Kutemba K. Kapanji-Kakoma, Nicholas M. Musyoka
Summary: Biogas, a renewable feedstock for hydrogen production, has been studied using a techno-economic approach. The scale and diversification of biogas plants are crucial for the feasibility of biogas-to-hydrogen projects. It has been shown that producing hydrogen at a target price of USD 3/kg or lower is not feasible with current plant sizes. Retrofitting modular units for hydrogen production in self-funded anaerobic digestor plants would only make financial sense at higher biogas production capacities. The cost competitiveness is dependent on the type of carbon formed, with low-grade carbon black negatively impacting economic feasibility. Hydrogen produced from biogas competes with green hydrogen production costs rather than grey hydrogen production.
Review
Energy & Fuels
Tamas Koranyi, Miklos Nemeth, Andrea Beck, Anita Horvath
Summary: Methane pyrolysis is an alternative method for hydrogen production, which can produce carbon-oxide free hydrogen and tailor the by-product into carbon with advanced morphology.
Article
Chemistry, Multidisciplinary
Dong Hyun Ko, Seok Chang Kang, Chul Wee Lee, Ji Sun Im
Summary: By investigating the effects of porous properties of supports on Co-Mo/MgO catalysts, it was found that improving the pore structure of MgO enhances the dispersibility of Co active metal, thereby improving methane conversion and multi-walled carbon nanotube (MWCNT) production.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Chemistry, Applied
Fang Liu, Guohui Xuan, Lun Ai, Qing Liu, Li Yang
Summary: This study investigates the effects of acid treatment on activated carbon (AC) for methane decomposition, finding that while increases in functional groups may enhance active surface sites, changes in surface areas and pore volumes are representative of methane conversions. Decreased specific surface area and altered pore structure are detrimental to the initial steps of methane adsorption and decomposition.
FUEL PROCESSING TECHNOLOGY
(2021)
Review
Chemistry, Multidisciplinary
Gowhar A. Naikoo, Fareeha Arshad, Israr U. Hassan, Musallam A. Tabook, Mona Z. Pedram, Mujahid Mustaqeem, Hassina Tabassum, Waqar Ahmed, Mashallah Rezakazemi
Summary: This article focuses on hydrogen production through thermocatalytic methane decomposition (TMD) and discusses the thermodynamics of this approach, various methods of hydrogen production from fossil fuels and renewable resources, and different types of catalysts available along with their deactivation reasons and regeneration methods. The review concludes that nickel, ruthenium, and platinum-based catalysts exhibit the highest activity and catalytic efficiency during the TMD process, but their rapid deactivation at high temperatures remains a challenge to be addressed by the scientific community.
FRONTIERS IN CHEMISTRY
(2021)
Article
Thermodynamics
Zong Chen, Rongjun Zhang, Guofu Xia, Yu Wu, Hongwei Li, Zhao Sun, Zhiqiang Sun
Summary: VPMDCS is a novel method for catalytic methane decomposition, which can efficiently produce high-purity hydrogen and CO. Through optimization, it shows certain competitiveness in terms of economy.
Article
Chemistry, Physical
Malgorzata Wisniewska, Natalia Pawlak, Dariusz Sternik, Robert Pietrzak, Piotr Nowicki
Summary: This research investigates the adsorption of organic and inorganic pollutants on carbonaceous adsorbents prepared from expired or broken food products. The activation process was conducted using potassium carbonate and orthophosphoric acid as activating agents. The activated carbons were characterized and their suitability as adsorbents for methylene blue and iodine removal from aqueous solutions was evaluated. The materials activated with H3PO4 showed higher effectiveness in both pollutant adsorptions. The Langmuir isotherm model provided a better fit for the experimental adsorption data for all carbonaceous materials compared to the Freundlich model.
Article
Chemistry, Applied
Saba Kazemi, Seyed Mehdi Alavi, Mehran Rezaei
Summary: A new type of spinel powder was used as a support for nickel-based catalysts in the thermal decomposition of methane to produce COx-free hydrogen. Various techniques were used to analyze the physicochemical characteristics of the samples. The results showed that the FeAl2O4-supported nickel catalyst had the highest stability and efficiency.
FUEL PROCESSING TECHNOLOGY
(2023)
