Article
Chemistry, Physical
Ramakrishna Chava, Anil Kumar Seriyala, D. Bhaskar Anurag Varma, Karthiek Yeluvu, Banasri Roy, Srinivas Appari
Summary: The A-site deficient La0.9_xBaxAl0.85Ni0.15O3 (x = 0, 0.02, 0.04, and 0.06) perovskite oxide catalyst was developed and used for dry reforming of model biogas. The catalysts were prepared using a citrate sol-gel method and analyzed using various techniques. The partial doping of Ba improved the catalytic activity and stability, resulting in the highest performance observed for La0.84Ba0.06Al0.85Ni0.15O3 (LB6AN-15).
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Nanoscience & Nanotechnology
Ok Sung Jeon, Hyesung Lee, Kug-Seung Lee, Vinod K. Paidi, Yunseong Ji, Oh Chan Kwon, Jeong Pil Kim, Jae-Ha Myung, Sang Yoon Park, Young Joon Yoo, Jin Goo Lee, Sang-Yup Lee, Yong Gun Shul
Summary: The strong bonding between the metal and support known as strong metal-support interaction (SMSI) can inhibit the aggregation of metal nanoparticles and carbon deposition during hydrocarbon reforming. This interaction is significantly affected by the heat treatment and reducing conditions during catalyst preparation. A mild reduction process using dry methane gas is proposed to increase the exposed interface between the metal and support and enhance the catalytic activity of the nanocatalyst. The effects of this process on the chemical state of Ni-cerium oxide nanocatalysts were investigated, leading to the formation of a significant amount of the Ni3+ phase and improved SMSI.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Alexandra Victoria Tavasoli, Mikaela Preston, Geoffrey Ozin
Summary: A techno-economic model is used to simulate fifteen case studies of a solar dry reforming process, aiming to explore technical challenges associated with its commercial application. The study found that the minimum catalyst activities required for most applications have been demonstrated in the scientific literature over the past two decades, but improvements in photoreactor engineering are needed for practical realization.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
Article
Chemistry, Physical
Amvrosios G. Georgiadis, Georgios I. Siakavelas, Anastasios I. Tsiotsias, Nikolaos D. Charisiou, Benedikt Ehrhardt, Wen Wang, Victor Sebastian, Steven J. Hinder, Mark A. Baker, Simone Mascotto, Maria A. Goula
Summary: Ni/LnO(x)-type catalysts were prepared and characterized for the dry reforming of biogas. LNO showed higher catalytic activity compared to other materials. However, it suffered from significant activity loss and reactor blockage. The deactivation was attributed to extensive coke deposition, including disordered carbon and multi-walled carbon nanotubes.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Multidisciplinary
Tao Zhang, Zhi-Cheng Liu, Ying-Chun Ye, Yu Wang, He-Qin Yang, Huan-Xin Gao, Wei -Min Yang
Summary: This study reveals the strong metal-support interaction (SMSI) effect on FeNi/Al-Ce-O catalysts, where the introduction of Al significantly improves the catalytic performance for dry reforming of ethane (DRE). The optimal DRE performance is achieved with a 50% Al content in the catalyst.
Article
Chemistry, Physical
Yuchen Gao, Ayub Golmakani, Seyed Ali Nabavi, Jianguo Jiang, Vasilije Manovic
Summary: This study synthesized a Ni/MgO catalyst for biogas reforming using the wet impregnation method and optimized parameters through experimental rig and simulations. The optimal configuration was found to be a 2-zone setup with a catalyst ratio of 1:4, showing significant effects on catalytic behavior. The findings provide new insights into biogas reforming and heterogeneous catalysis reactions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Energy & Fuels
Shuqing Li, Yu Fu, Wenbo Kong, Jiyang Wang, Changkun Yuan, Bingrong Pan, He Zhu, Xia Chen, Yidan Zhang, Jun Zhang, Yuhan Sun
Summary: Tunable strong metal-support interactions (SMSI) between nickel nanoparticles (NPs) and oxygen-free hexagonal aluminum nitride (h-AlN) have been achieved through hydrothermal-assisted degradation method. A thin Al2O3 layer is constructed on the AlN surface, which combines with NiOx species to redisperse Ni NPs in the reductive atmosphere. The strong interactions (Al2O3-Ni-AlN) build a dynamic balance between Ni0 and Ni2+ to prevent Ni oxidation toward the supporting interior. This strategy shows promising and controllable approach for industrial application of dry reforming of methane (DRM) catalysts.
Article
Energy & Fuels
Meng Zhang, Xiaotian Zhou, Chao Li, Wenjing Yi, Qiliang Gao, Junfeng Zhang, Qingde Zhang, Yizhuo Han
Summary: This research focuses on the effects of the Y/Zr molar ratio in the Y2O3-ZrO2 supports on metal-support interaction and surface oxygen species. The results show that increasing Y content can enhance Ni dispersion and enrich surface oxygen species. In catalysts with high Y content, Ni/Y2O3 exhibits the highest CH4 and CO2 conversion and can maintain activity for at least 3600 minutes at 750 degrees C.
Review
Chemistry, Physical
M. A. Salaev, L. F. Liotta, O. V. Vodyankina
Summary: This review focuses on recent advances in lanthanoid-containing Ni-based DRM catalysts, including the performance of catalysts supported on different oxides, modification with noble or transition metals, and the organization of interfaces. The features of high-performance DRM catalysts are analyzed, and the challenges and opportunities in the rational design of lanthanoid-containing Ni-based catalysts for dry reforming of methane and other hydrocarbons are discussed.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Chemical
Fagen Wang, Kaihang Han, Leilei Xu, Hao Yu, Weidong Shi
Summary: The study found that the supported Ni/SiO2-E catalyst synthesized by strong electrostatic adsorption exhibited higher performance in low-temperature MDR, attributed to the smaller Ni size and stronger Ni-SiO2 interaction, which contributed to reduced carbon deposition and minimized sintering of Ni nanoparticles.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Luming Li, Song Wu, Hongmei Li, Jie Deng, Junshan Li
Summary: A nanocomposite catalyst was developed for the dry reforming of methane, which showed enhanced catalytic activity due to the high specific surface area of the mesoporous support and the introduction of Pt. This study demonstrates the potential application of high specific surface area mesoporous perovskite in various catalytic processes.
Article
Chemistry, Physical
Muriel Chaghouri, Sara Hany, Fabrice Cazier, Haingomalala Lucette Tidahy, Cedric Gennequin, Edmond Abi-Aad
Summary: This study analyzed the composition of biogas produced in a landfill using gas chromatography. The results showed that methane and carbon dioxide were the main components, and dry reforming of methane (DRM) could be a promising valorization method. The presence of water and VOCs could affect the catalytic efficiency, but DRM was still feasible under certain conditions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Lei Wang, Ziliang Pu, Yu Shi, Mengmeng Wu, Weidong Shi, Fagen Wang
Summary: In this study, a multifunctional (Ni-Cu/CeO2)@SiO2 catalyst was investigated for photothermal methane dry reforming, demonstrating its superior performance compared to Ni@SiO2. The encapsulation of SiO2 and the metal-support interaction ensured the trace aggregation of Ni and lessened carbon deposition on the used catalyst. This work showcases the potential of photothermal approach for enhancing performance in photosensitive reactions.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Fangyuan Cheng, Xiuyun Duan, Kui Xie
Summary: This study successfully stabilized Ni nanoparticles on a unique catalyst structure, achieving efficient conversion of dry reforming of CH4/CO2 to syngas and demonstrating good durability. The design of Ni-MgO interfaces facilitated the reaction process and enhanced coking resistance.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Tiantian Lin, Cun Liu, Yuvaraj Gangarajula, Qinghe Li, Yang Su, Shaomin Zhu, Botao Qiao
Summary: Sintering and carbon deposition are major challenges in high-temperature dry reforming of methane. In this study, a strong metal-support interaction (SMSI) was induced between Ni nanoparticles and vanadate substituted hydroxyapatite (VAP) to inhibit sintering. The Ni/VAP catalyst showed high CH4 conversion and stability due to the intact VAP overlayer and electron-transfer.
APPLIED CATALYSIS A-GENERAL
(2023)
Article
Environmental Sciences
Arun Karthick, Banasri Roy, Pradipta Chattopadhyay
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2019)
Review
Environmental Sciences
Arun Karthick, Banasri Roy, Pradipta Chattopadhyay
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2019)
Article
Chemistry, Multidisciplinary
Vijay Singh, Ankit Rao, Anamika Tiwari, Padarthi Yashwanth, Manohar Lal, Uma Dubey, Shampa Aich, Banasri Roy
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2019)
Article
Chemistry, Physical
U. P. M. Ashik, Shusaku Asano, Shinji Kudo, Doan Pham Minh, Srinivas Appari, Einaga Hisahiro, Jun-ichiro Hayashi
Article
Agronomy
G. Athira, A. Bahurudeen, Srinivas Appari
Summary: This study investigates the thermal decomposition behavior of sugarcane bagasse under pyrolysis conditions, as well as the properties of the biochar produced. The results showed a complex multi-step thermal degradation behavior for bagasse and predominantly siliceous biochar obtained. X-ray diffraction studies indicated the absence of crystalline phases in the biochar even at a pyrolysis temperature of 700 degrees Celsius.
Article
Chemistry, Multidisciplinary
Shweta Sharma, Shampa Aich, Banasri Roy
Summary: The study found that the BICOVOX-600 catalyst exhibited the highest ethanol conversion and maximum H-2 selectivity under reaction conditions of 400 degrees C, 23:1H(2)O: EtOH molar ratio and 0.35 cc min(-1) feed flow rate. The presence of the maximum number of O2- vacancies in the lattice and lowest coke deposition can explain the superior performance of the BICOVOX-600 catalyst.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Engineering, Chemical
Vivek Pawar, Prakash V. Ponugoti, Vinod M. Janardhanan, Srinivas Appari
Summary: This study investigates CO2 reforming of CH4 over a Ni-coated monolith catalyst, considering the combined deactivation effect of sulphur poisoning and fouling due to carbon deposition. Results show that the catalyst can operate stably for 6 hours without H2S, and the sulfur poisoning effect is reversible.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2022)
Review
Chemistry, Physical
S. Nirmal Kumar, Srinivas Appari, Bhanu Vardhan Reddy Kuncharam
Summary: This paper reviews literature on developments in sulfur-resistant systems and discusses the basics of sulfur poisoning mechanisms and a framework of sulfur tolerance methodologies in syngas production.
CATALYSIS SURVEYS FROM ASIA
(2021)
Article
Chemistry, Multidisciplinary
S. Sharma, P. K. Yashwanth, B. Roy
Summary: The study examined the performance of gamma-BICOVOX as a catalyst at low temperatures, finding that as the activity time of the catalyst increased, a decrease in oxygen vacancies led to reduced oxygen mobility, eventually causing almost complete deactivation of the catalyst within 150 hours.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Review
Chemistry, Physical
S. Anil, S. Indraja, R. Singh, S. Appari, B. Roy
Summary: This article examines the impact of modifying nickel with various noble and non-noble metals and altering supports with different metal oxides on ethanol steam reforming (ESR) reaction. It explores the reaction mechanisms and thermodynamics, emphasizing the importance of catalyst morphology, active metal promoter, and support modifier in hydrogen production and carbon deposition prevention.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Anil Kumar Seriyala, Ankit Rao, Corey Leclerc, Srinivas Appari, Banasri Roy
Summary: This article explores the effect of metal loading and support modification with MgO on low-temperature steam reforming of ethanol (LTSRE) over Ni-Sn/CeO2 catalysts. The study showed that the addition of MgO in CeO2 and an optimal amount of Sn reduced both Ni and support particle sizes, while increasing the oxygen storage capacity (OSC) of the support. The alkaline characteristics of MgO reduced the acidity of the support and improved the active metal-support interaction.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Ramakrishna Chava, Anil Kumar Seriyala, D. Bhaskar Anurag Varma, Karthiek Yeluvu, Banasri Roy, Srinivas Appari
Summary: The A-site deficient La0.9_xBaxAl0.85Ni0.15O3 (x = 0, 0.02, 0.04, and 0.06) perovskite oxide catalyst was developed and used for dry reforming of model biogas. The catalysts were prepared using a citrate sol-gel method and analyzed using various techniques. The partial doping of Ba improved the catalytic activity and stability, resulting in the highest performance observed for La0.84Ba0.06Al0.85Ni0.15O3 (LB6AN-15).
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)