Article
Environmental Sciences
Adriana Moral-Rodriguez, Roberto Leyva-Ramos, Esmeralda Mendoza-Mendoza, Paola E. Diaz-Flores, Damarys H. Carrales-Alvarado, Maria F. Alexandre-Franco, Carmen Fernandez-Gonzalez
Summary: The textural and physicochemical characteristics of commercial activated carbons have a significant impact on their adsorption capacity for ronidazole and diclofenac. Coconut AC and Wood AC exhibit the highest adsorption capacity for RNZ and DCF at pH=7. The adsorption mechanism is mainly driven by π-π stacking interactions, and the presence of acidic sites enhances the adsorption capacity. The adsorption of RNZ on Coconut AC is irreversible, while the adsorption of DCF on Wood AC is reversible.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
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.
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
Chemistry, Physical
Wilson L. Mahene, Thomas Kivevele, Revocatus Machunda
Summary: The textural properties and surface chemistry of activated carbon support play a significant role in the catalytic performance of catalysts. The impact of these properties in the deoxygenation of triglycerides into diesel-like hydrocarbons has been extensively studied. This review aims to consolidate the literature on the role and relevance of textural properties and surface chemistry of activated carbon support in this process. It is found that different activated carbon materials have distinct effects on the catalytic behaviors of the supported catalyst, and the degree of influence varies depending on the nature of the supported catalyst.
CATALYSIS COMMUNICATIONS
(2023)
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
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)
Article
Chemistry, Physical
Brett Parkinson, Clemens F. Patzschke, Dimitrios Nikolis, Sumathy Raman, David C. Dankworth, Klaus Hellgardt
Summary: Methane pyrolysis in molten salts has the potential to produce low-cost, low-CO2 emission H-2 on an industrial scale, with alkali halides as liquid reaction media resulting in high purity carbon; observed activation energies are lower and purity correlates with salt compound size and salt-carbon wettability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(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, Multidisciplinary
Patrick Lott, Manas B. Mokashi, Heinz Mueller, Dominik J. Heitlinger, Sven Lichtenberg, Akash B. Shirsath, Corina Janzer, Steffen Tischer, Lubow Maier, Olaf Deutschmann
Summary: High-temperature pyrolysis using natural gas and sustainable biogas shows great potential for large-scale hydrogen production and simultaneous carbon capture. This study demonstrates the feasibility of gas-phase methane pyrolysis for high hydrogen yields and carbon capture under industrially relevant conditions.
Article
Engineering, Chemical
Hazzim F. Abbas, U. P. M. Ashik, Salam A. Mohammed, Wan Mohd Ashri Wan Daud
Summary: The study experimentally demonstrated the catalytic effect of the internal surface of reactors made from stainless steel (SS310) on hydrogen production via methane decomposition, and investigated the effects of methane decomposition temperature and volume-hourly-space velocity on hydrogen production. The results showed that the catalytic activity of the SS310 reactor's internal surface increased with higher methane decomposition temperature and lower VHSV.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2021)
Article
Chemistry, Physical
Megumu Inaba, Zhanguo Zhang, Koichi Matsuoka, Yasushi Soneda
Summary: The study investigated the effect of siloxane coexistence on the production of hydrogen and carbon nanofiber by methane decomposition. Siloxane addition enhanced catalytic activity, accelerated deactivation, and resulted in carbon species formation at lower temperatures. Coexistence of CO2 and siloxane prolonged the catalytic lifetime by inhibiting carbon deposition on the catalyst.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Megumu Inaba, Koji Kuramoto, Yasushi Soneda
Summary: The effect of CO2 and H2S coexistence on the production of hydrogen and solid carbon by methane decomposition over iron oxide catalysts was investigated. The catalytic activity for methane decomposition was decreased by the coexistence of H2S. Moreover, the activity decrease was aggravated by the coexistence of CO2 as well as H2S.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Ivaylo Tankov, Hristo Kolev, Georgi Avdeev
Summary: This study investigates the heterogenization of Pyridinium hydrogen sulfate ionic liquid on activated carbon for the first time, exploring its catalytic activity, reusability, and reaction mechanisms. Physicochemical methods were utilized to analyze the samples, revealing mixed micro-mesoporous materials and surface interactions. The catalytic activity was found to be influenced by the surface active phase amount rather than the size of PHS particles.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Energy & Fuels
Alexander Ilyushechkin, Alex Kondratiev, Chong He, Jin Bai, Xiaodong Chen, San Shwe Hla
Article
Energy & Fuels
Xiaoming Li, Xiaodong Chen, Congbin Jiang, Jianping Ding, Jinjun Guo, Lingxue Kong, Jin Bai, Wen Li
Article
Energy & Fuels
Mengjie Liu, Jin Bai, Jianglong Yu, Lingxue Kong, Zongqing Bai, Huaizhu Li, Chong He, Zefeng Ge, Xi Cao, Wen Li
Article
Energy & Fuels
Mengjie Liu, Jin Bai, Lingxue Kong, Zongqing Bai, Chong He, Wen Li
Article
Energy & Fuels
Wenju Shi, Jin Bai, Lingxue Kong, Huiling Zhao, Stefan Guhl, Huaizhu Li, Zongqing Bai, Ping Li, Bernd Meyer, Wen Li
Article
Energy & Fuels
Xi Cao, Lingxue Kong, Jin Bai, Huiling Zhao, Zefeng Ge, Huaizhu Li, Zongqing Bai, Wen Li
Article
Energy & Fuels
Xi Cao, Baozi Peng, Lingxue Kong, Jin Bai, Zefeng Ge, Huaizhu Li, Zhen Liu, Ziyang Feng, Dapeng Bi, Zongqing Bai, Andrzej Szlek, Wen Li
Article
Energy & Fuels
Ranran Hou, Zongqing Bai, Hongyan Zheng, Zhihao Feng, Donghong Ye, Zhenxing Guo, Lingxue Kong, Jin Bai, Wen Li
Article
Energy & Fuels
Xiaoming Li, Lifei Zhi, Wenju Shi, Lingxue Kong, Jin Bai, Jianglong Yu, Markus Reinmoeller, Stefan Guhl, Bernd Meyer, Wen Li
Review
Energy & Fuels
Yixin Chen, Soonho Lee, Arash Tahmasebi, Jin Bai, Merrick Mahoney, Jianglong Yu
Article
Energy & Fuels
Zefeng Ge, Lingxue Kong, Jin Bai, Xi Cao, Huiling Zhao, Huaizhu Li, Zongqing Bai, Bernd Meyer, Stefan Guhl, Wen Li
Article
Energy & Fuels
Zhigang Wang, Lingxue Kong, Jin Bai, Zefeng Ge, Huaizhu Li, Yumei Li, Wei Liu, Wen Li
Article
Energy & Fuels
Wenju Shi, Marcel Laabs, Markus Reinmoeller, Jin Bai, Stefan Guhl, Lingxue Kong, Huaizhu Li, Bernd Meyer, Wen Li
Summary: Slagging-type technologies, particularly entrained-flow gasification, have been rapidly developed and industrialized due to their inherent advantages. The use of binary additives of CaO/Fe2O3 is studied to improve ash fusibility, with different ratios affecting the ash fusion behavior and ultimately slag properties. The application of different additive ratios leads to different regimes of ash fusion, influencing the behavior of sintering, swelling, and fusion in high temperature range.
Article
Energy & Fuels
Ji Wang, Lingxue Kong, Jin Bai, Huiling Zhao, Kang Xue, Xiaolong Zhu, Stefan Guhl, Markus Reinmoeller, Huaizhu Li, Zongqing Bai, Bernd Meyer, Wen Li
Article
Energy & Fuels
Xiaoming Li, Caifeng Yang, Mengjie Liu, Jin Bai, Wen Li
INTERNATIONAL JOURNAL OF COAL SCIENCE & TECHNOLOGY
(2020)