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
Energy & Fuels
Ahmed Sadeq Al-Fatesh, Ahmed Aidid Ibrahim, Ahmed I. Osman, Fahad Albaqi, Rasheed Arasheed, Frusteri Francesco, Todaro Serena, Khalid Anojaid, Mahmud Sofiu Lanre, Ahmed Elhag Abasaeed, Anis Hamza Fakeeha, Abdulaziz Bentalib, Abdulaziz Bagabas
Summary: The effect of barium doping on the activity and stability of nickel-based catalysts (Ni-YZr) in dry reforming of methane was investigated. The catalysts were characterized by various techniques and tested in a fixed-bed reactor. The results showed that barium played a crucial role in enhancing catalyst reducibility and CO2 adsorption at high temperatures. The addition of 4.0 wt% of barium was found to be the optimal loading, resulting in stable CH4 conversion of 82%.
ENERGY SCIENCE & ENGINEERING
(2023)
Article
Chemistry, Physical
Anis Hamza Fakeeha, Rutu Patel, Nissrine El Hassan, Salma A. Al-Zahrani, Abdulrhman S. Al-Awadi, Leone Frusteri, Hossein Bayahia, Abdulrahman I. Alharth, Ahmed Sadeq Al-Fatesh, Rawesh Kumar
Summary: In this study, a series of 5NixHo/YZr materials were tested and characterized. The results showed that the addition of yttria modified the pore sizes and stabilized cubic zirconia phases, while the addition of holmium brought stable cubic zirconia and a wide range of reducible species. The catalyst with 4 wt% holmium loading exhibited the best performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Multidisciplinary
Salma A. Al-Zahrani, Ahmed S. Al-Fatesh, Marie-Nour Kaydouh, Ahmed Al Otaibi, Frusteri Francesco, Anis H. Fakeeha, Nissrine El Hassan
Summary: The promotional effect of cesium on yttria-zirconia-supported nickel catalysts in dry reforming of methane is studied for the first time. It is found that an appropriate amount of cesium can improve the carbon resistance of the catalysts, but excessive cesium reduces the catalytic performance. The optimum loading of cesium is determined to be 0.5-1.0 wt%.
ALEXANDRIA ENGINEERING JOURNAL
(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
Mayankkumar L. Chaudhary, Ahmed S. Al-Fatesh, Rawesh Kumar, Mahmud S. Lanre, Francesco Frusteri, Salwa B. AlReshaidan, Ahmed A. Ibrahim, Ahmed E. Abasaeed, Anis H. Fakeeha
Summary: The idea of hydrogen production through dry reforming of methane (DRM) is excellent for decreasing greenhouse gas concentration. The addition of ceria to the yttria-zirconia supported nickel catalyst enhances its catalytic activity. The addition of 2 wt% ceria reduces the crystallinity of metallic nickel, increases the CH4 decomposition sites and oxygen mobility, resulting in a 79% H2 yield.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
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, 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)
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
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.
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)
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
Chemistry, Physical
Ruifan Tan, Ping Wang, Luyao Guo, Zupeng Chen, Ronghe Lin, Xiaoling Mou, Yunjie Ding
Summary: The shape of the carriers plays a significant role in the catalytic performance of metal-supported catalysts. This study investigates the impact of different shapes of ZrO2 (nanorods-like, spherical, and irregular nanoparticles) on the catalytic performance in methane dry reforming by dispersing Ni species. Various characterization techniques are used to analyze the fresh and spent catalysts. The reducibility of NiO species is found to follow the order of Ni/RZ.
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.
Article
Materials Science, Multidisciplinary
Arman Molaei, MardAli Yousefpour
Summary: Composite coatings of chitosan-bioglass-hydroxyapatite-halloysite nanotube were successfully produced by electrophoretic deposition, demonstrating good corrosion resistance and apatite-inducing ability in corrected simulated body fluid.
Article
Materials Science, Ceramics
A. Molaei, M. Lashgaroo, M. Yousefpour
JOURNAL OF THE AUSTRALIAN CERAMIC SOCIETY
(2020)
Article
Engineering, Mechanical
Mohammad Mahdi Taherian, Mardali Yousefpour, Ehsan Borhani
ENGINEERING FAILURE ANALYSIS
(2020)
Article
Materials Science, Multidisciplinary
Amir Zareidoost, Mardali Yousefpour
Article
Materials Science, Ceramics
Nayereh Askari, Mardali Yousefpour, Masoud Rajabi
JOURNAL OF THE AUSTRALIAN CERAMIC SOCIETY
(2020)
Article
Materials Science, Ceramics
Armin Vahdat, Behrooz Ghasemi, Mardali Yousefpour
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2020)
Article
Chemistry, Physical
Zahra Taherian, Vahid Shahed Gharahshiran, Fatemeh Fazlikhani, Mardali Yousefpour
Summary: In this study, the addition of samarium to Ni catalyst through impregnation method successfully decreased the average Ni crystallite size and specific surface area, resulting in improved catalytic activity, enhancing the methane dry reforming process.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Dermatology
Samar A. M. Salem, Sharief M. Abdel Hameed, Azza E. Mostafa
Summary: The study found that cryotherapy is more effective than IPL in treating hypertrophic scars both clinically and histopathologically, although it did come with more complications.
JOURNAL OF COSMETIC DERMATOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Rahman Moridi Asl, Mardali Yousefpour, Ali Shanaghi
Summary: The study focused on enhancing the corrosion resistance of materials by using sol-gel thin films doped with corrosion inhibitors. Different analytical techniques were employed to evaluate the thin films, and results indicated that composite thin films without microcracks showed improved corrosion resistance compared to single-component coatings. The best thin film conditions were identified through AHP and TOPSIS methods, with good agreement with experimental results.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Ceramics
Armin Vahdat, Behrooz Ghasemi, Mardali Yousefpour
Summary: The study aimed to recover and separate cobalt ions from multielement solution using hydroxyapatite (HAp) and HAp/Fe3O4 magnetic nanocomposite as adsorbents. The adsorption efficiency of cobalt ions was higher with the magnetic nanocomposite of HAp. Various isotherm models confirmed the feasibility of the adsorption process.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2022)
Article
Engineering, Biomedical
Amir Zareidoost, Mardali Yousefpour
Summary: This study investigated the impact of severe cold deformation on the crystallographic texture, nanostructuring, and cytocompatibility of (Ti55Zr25Nb10Ta10)(98.5)-Ag-1.5 alloy. Results showed that severe cold deformation resulted in grain refinement, formation of -fiber texture, and increased dislocation density, ultimately affecting the surface biocompatibility of the alloy.
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
(2022)
Article
Biochemistry & Molecular Biology
Sahar Salehi, Mohammad Sadegh Nourbakhsh, Mardali Yousefpour, Ghadir Rajabzadeh, Sajad Sahab-Negah
Summary: The study aimed to improve the stability and brain permeability of curcumin by optimizing the formulation of bare niosome and chitosan-coated niosome. Experimental results in rats showed that chitosan-coated niosome significantly increased the concentration of curcumin in different organs and the central nervous system.
JOURNAL OF LIPOSOME RESEARCH
(2022)
Article
Chemistry, Applied
Hossein Heydari, Mardali Yousefpour, Esmaeil Emadoddin, Maryam Hosseini Zori, Mohsen Khajeh Aminian
Summary: In this study, vanadium-containing nanopigments of ZrSiO4 were synthesized using a microwave-assisted polyol technique, and the effects of microwave power and irradiation time on the properties of the synthesized nanoparticles were investigated. The results showed that fully crystalline nano-ZrSiO4 could be obtained under appropriate conditions, which can be used as blue ceramic pigments.
JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH
(2022)
Article
Chemistry, Applied
Sahar Salehi, Mohammad Sadegh Nourbakhsh, Mardali Yousefpour, Ghadir Rajabzadeh, Sajad Sahab-Negah
Summary: In this study, chitosan-coated niosome was used to enhance the bioavailability of curcumin and boswellic acids. The chitosan layer improved the physical stability of the niosome and increased the bioavailability of the drugs.
JOURNAL OF MICROENCAPSULATION
(2022)
Article
Materials Science, Multidisciplinary
Seyedeh Zahra Mousavi-Semnani, Mardali Yousefpour, Amir Zareidoost
Summary: The surface characteristics of biomaterials play a crucial role in cell behavior. This study investigates the anodizing treatment of Zr-2.5Nb alloy and its effects on cell interactions and corrosion resistance. The results demonstrate that anodizing treatment improves cell attachment, proliferation, and viability, and enhances the corrosion resistance of the alloy.
