Article
Chemistry, Physical
Magdalena Greluk, Wojciech Gac, Marek Rotko, Grzegorz Slowik, Sylwia Turczyniak-Surdacka
Summary: The addition of citric acid improved the dispersion and reduced particle size of metal particles, while catalysts prepared from ammonia solution showed the largest metal particle size. In steam reforming of ethanol, dehydrogenation of ethanol takes place preferentially on terrace sites, while cleavage of C-C bond is favored by edge/steps sites.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Physical
Anita Horvath, Miklos Nemeth, Andrea Beck, Gyorgy Safran, Valeria La Parola, Leonarda Francesca Liotta, Gregor Zerjav, Matevz Roskaric, Albin Pintar
Summary: This study investigates the catalytic and structural changes caused by the addition of 0.25 wt% indium in a 3% Ni/CeO2-Al2O3 catalyst prepared by impregnation method. The results show that the addition of indium can decrease the activity of the catalyst, but it improves its stability and reduces coking.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Multidisciplinary
Renata O. da Fonseca, Antonella R. Ponseggi, Raimundo C. Rabelo-Neto, Rita C. C. Simoes, Lisiane Mattos, Fabio B. Noronha
Summary: The study found that an increase in Ni crystallite size promotes the formation of carbon, but carbon deposition is negligible when the crystallite size is either small or large. Oxygen vacancies do not contribute to carbon removal from the Ni surface.
JOURNAL OF CO2 UTILIZATION
(2022)
Article
Chemistry, Multidisciplinary
KeFa Sheng, Kai Cui
Summary: The influence of different calcination temperatures on the catalytic performance of Ni-Al2O3 catalyst was comprehensively studied. A rod-like Ni-Al2O3-700 catalyst with excellent resistance to carbon deposition and sintering was successfully created, providing a new strategy for constructing structured and high-performance Ni-based catalysts.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Andre L. A. Marinho, Fabio S. Toniolo, Fabio B. Noronha, Florence Epron, Daniel Duprez, Nicolas Bion
Summary: Ni-based mesoporous mixed CeO2-Al2O3 oxide catalysts prepared by one pot EISA method show high activity and stability in dry reforming of methane, attributed to the confinement of Ni particles and the inhibition of carbon deposition.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Zhoufeng Bian, Wenqi Zhong, Yang Yu, Zhigang Wang, Bo Jiang, Sibudjing Kawi
Summary: Catalysts of Ni supported on home-made mesoporous alumina exhibited high activity and stability in DRM, with NiAl2O4 spinel structure contributing to improved performance. Control of calcination temperature is crucial for catalyst properties.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Hui Wang, Hao Zhu, Yuelan Zhang, Jianglong Pu
Summary: In this study, a series of Ni/Ce catalysts were synthesized with the assistance of CTAB, and their performance was evaluated. The results showed that CTAB improved the pore structure and reducibility of the catalysts, leading to higher activity and lower methane yield. Among them, Ni/Ce-C6 catalyst exhibited the best performance with high surface area and hydrogen yield, along with strong Ni-ceria interaction. Additionally, the CTAB assistance inhibited the formation of amorphous carbon.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Amir Mosayebi, Mohammad Hosein Eghbal Ahmadi, Mohammad Hamidizirasefi
Summary: This study evaluated the influences of different transition metals (Fe, Cu, and Zn) addition to Ni/Ce-Al2O3 catalyst on the combined steam and dry reforming of methanol (CSDRM) reaction. The results showed that the addition of transition metals improved the thermal stability, coke deposition, reducibility, and catalytic activity of the catalyst.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Anita Horvath, Miklos Nemeth, Andrea Beck, Boglarka Maroti, Gyorgy Safran, Giuseppe Pantaleo, Leonarda Francesca Liotta, Anna Maria Venezia, Valeria La Parola
Summary: The promotion effect of 0.3 wt% indium on different catalysts was studied and compared to the effects of ceria additive. NiIn/Al2O3 maintained activity in DRM, while NiIn/CeO2-Al2O3 reduced coke formation but also decreased catalytic activity.
APPLIED CATALYSIS A-GENERAL
(2021)
Article
Chemistry, Physical
Mamoona Waris, Howon Ra, Sungmin Yoon, Min-Jae Kim, Kyubock Lee
Summary: This study investigates the effect of citric acid concentration on the preparation of highly dispersed Ni catalysts on mesoporous silica for the dry reforming of methane. The addition of citric acid during catalyst synthesis results in highly dispersed Ni particles and improves catalytic performance. However, too high of a citric acid concentration leads to the formation of larger Ni particles.
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
Chemistry, Physical
Robert Franz, Frans D. Tichelaar, Evgeny A. Uslamin, Evgeny A. Pidko
Summary: The study investigated the impact of passivation on the catalytic performance of Ni/Al2O3 catalysts in dry reforming of methane, showing that changes in conversion and coke content can track sintering of Ni particles. The study also revealed adverse effects of catalyst passivation in excess O2, leading to rapid local overheating and Ni sintering, even at small catalyst scales.
APPLIED CATALYSIS A-GENERAL
(2021)
Review
Chemistry, Physical
Sebete S. Mabaleha, Farshad Gholizadeh, Pranjal Kalita
Summary: This paper reports advances in the preparation of stable Ni-based catalysts for DRM reaction through improvement of Ni dispersion and strength of metal-support interactions using various supports, promoters, synthesis methods, and pre-treatment temperatures. Stable catalysts with high Ni dispersion and strong metal-support interactions were prepared using plasma treatment, evaporation-induced self-assembly, ammonia evaporation, and homogeneous precipitation synthesis. The use of different supports, synthesis methods, promoters, and pre-treatment temperatures has significantly improved the Ni dispersion, metal-support interactions, and ultimate stability of the catalysts.
MOLECULAR CATALYSIS
(2023)
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
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, Ceramics
Leonardo Duranti, Isabella Natali Sora, Francesca Zurlo, Igor Luisetto, Silvia Licoccia, Elisabetta Di Bartolomeo
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2020)
Article
Chemistry, Multidisciplinary
Mariarita Santoro, Igor Luisetto, Simonetta Tuti, Silvia Licoccia, Claudia Romano, Andrea Notargiacomo, Elisabetta Di Bartolomeo
APPLIED SCIENCES-BASEL
(2020)
Article
Materials Science, Multidisciplinary
Igor Luisetto, Maria Rita Mancini, Livia Della Seta, Rosa Chierchia, Giuseppina Vanga, Maria Luisa Grilli, Stefano Stendardo
Article
Chemistry, Physical
Daniela Pietrogiacomi, Maria Cristina Campa, Ida Pettiti, Simonetta Tuti, Giulia Luccisano, Leandro Ardemani, Igor Luisetto, Delia Gazzoli
Summary: Ni/ZrO2 catalysts prepared by different methods showed high activity and selectivity for the catalytic partial oxidation of methane to syngas. The interaction between Ni-ZrO2 helped to limit Ni aggregation during catalytic runs, and the catalytic activity depended on the activation procedures.
Article
Electrochemistry
L. Duranti, I Luisetto, S. Licoccia, C. D'Ottavi, E. Di Bartolomeo
Summary: RSOC technology allows efficient conversion of power to chemicals and vice versa, with fuel flexibility being a key aspect for integration into existing infrastructure. A composite fuel electrode showed remarkable activity for CO2 reduction, highlighting the potential for reversible solid oxide cells in different operating conditions.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Seyed Sepehr Moeini, Umberto Pasqual Laverdura, Eleonora Marconi, Nicola Lisi, Emanuele Serra, Rosa Chierchia, Igor Luisetto, Simonetta Tuti, Daniela Tofani
Summary: In this study, a novel catalyst Pd-P alloy supported on aminopropyl-functionalized mesoporous silica was prepared and showed higher activity and selectivity in the oxidation of benzyl alcohol to benzaldehyde, indicating the promoting effect of phosphorus on metal dispersion and Pd electron density.
Article
Engineering, Chemical
Igor Luisetto, Stefano Stendardo, Sakkarapalayam Murugesan Senthil Kumar, Karuppiah Selvakumar, Jagadesh Kopula Kesavan, Giovanna Iucci, Umberto Pasqual Laverdura, Simonetta Tuti
Summary: Nickel-cerium oxide catalysts with nanorod morphology showed excellent performance in methanation reaction, achieving a CO2 conversion of 40% with a high CH4 selectivity of 93%.
Article
Chemistry, Multidisciplinary
A. Privitera, L. Ruggiero, I. Venditti, U. Pasqual Laverdura, S. Tuti, D. De Felicis, S. Lo Mastro, L. Duranti, E. Di Bartolomeo, T. Gasperi, M. A. Ricci, A. Sodo
Summary: This study encapsulates copper corrosion inhibitors in silica nanocontainers for future application in smart coatings, aiming to reduce chemical usage, environmental dispersion, and direct exposure for operators.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Green & Sustainable Science & Technology
Clarissa Settimi, Daniela Zingaretti, Simone Sanna, Iason Verginelli, Igor Luisetto, Antonello Tebano, Renato Baciocchi
Summary: This study prepared Fe-Cu and Fe-Ni bimetals by disc milling for the dehalogenation of trichloroethylene vapors. The results showed that Fe-Ni bimetals performed better in terms of TCE removal. The findings of this study suggest that ZVI-based bimetals produced by disc milling are effective in the dehalogenation of TCE vapors under partially saturated conditions.
Article
Chemistry, Physical
Seyed Sepehr Moeini, Simonetta Tuti, Chiara Battocchio, Igor Luisetto, Daniela Tofani
Summary: Benzyl alcohol oxidation to benzaldehyde is successfully achieved using PdOx/CeO2-NR catalyst under solvent-free conditions. The catalyst exhibited high conversion and selectivity, with electron donating groups on the benzylic ring promoting the reactivity, while electron withdrawing groups were detrimental. The partial reduction of the metal during the reaction resulted in a Pd(0)/PdOx/CeO2-NR redox couple, which enhanced the catalytic activity and recyclability. Some mechanistic hypotheses are proposed.
Article
Chemistry, Physical
Anna Prioriello, Leonardo Duranti, Igor Luisetto, Frederick Sanna, Claudio Larosa, Maria Luisa Grilli, Elisabetta Di Bartolomeo
Summary: The aim of this research is to develop a structured catalyst for the dry reforming of biogas in solid oxide fuel cells. The catalyst consists of NiCrAl foams coated with ruthenium supported on a CaZr0.85Sm0.15O3-δ perovskite oxide. Tests are conducted at different temperatures and gas hourly space velocities to evaluate the performance of the catalyst. Results will be used to validate the feasibility of using biogas as a fuel source for solid oxide fuel cells.
Article
Chemistry, Physical
Ming-Yi Chen, Ngoc Thanh Thuy Tran, Ahmed Abubakar Alao, Wen-Dung Hsu
Summary: This study demonstrates the significance of surface Pt atom arrangement for the efficiency of ORR in PEMFCs and reveals the correlation between Pt-Pt average distance and O2 dissociation barrier. Furthermore, the study discovers a robust correlation between the level of the catalyst's d-band center and O2 adsorption energy. High-entropy alloy substrates provide potential for controlling Pt arrangement and O2 dissociation barrier.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Eduardo C. Atayde Jr, Babasaheb M. Matsagar, Yu-Cheng Wang, Kevin C. -W. Wu
Summary: This study presents the first application of an acidic MOF, Sulfated MOF-808, in catalyzing the HAA reactions of furan oligomers for the production of biofuel precursors. The catalyst showed high yield, selectivity, and recyclability, making it versatile for different starting materials.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Maria do Carmo Rangel, Francieli Martins Mayer, Soraia Jesus de Oliveira, Sergio Gustavo Marchetti, Fabricio Luiz Faita, Doris Ruiz, Giovanni Saboia, Mariana Kieling Dagostini, Jonder Morais, Maria do Carmo Martins Alves
Summary: This study developed a new catalyst by investigating the effect of magnesium on the catalytic properties of hematite in ethylbenzene dehydrogenation. The catalyst showed important differences in activity, selectivity, and stability, making it a promising candidate for commercial applications.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Yanjun Li, Qian Wang, Hui Tian, Mingyuan Zhu, Yuanyuan Liu
Summary: A novel strategy using microwave-assisted precipitation was proposed to prepare defective CsH3PMo11VO40 catalyst for the oxidation of methacrolein to methacrylic acid. Microwave treatment accelerates crystallization, increases vanadyl species content, and forms defective Keggin structures, thereby enhancing the oxidation capacity of the catalyst.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Rajeshwari Athavale, Sailee Gardi, Fatima Choudhary, Dayanand Patil, Nandkishor Chandan, Paresh More
Summary: In this study, a novel acidic ionic liquid catalyst was prepared and used for the synthesis of bis-indolyl methane derivatives. The catalyst exhibited short reaction times, easy purification, and reusability.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Masatomo Hattori, Takato Hattori, Masakuni Ozawa
Summary: Cu-added gamma-Al2O3 catalysts were prepared with varying Cu loadings and the effects of copper oxidation states on catalytic activity were investigated. The results showed that the addition of copper increased the catalyst activity, but excessive copper loading decreased catalytic activity. XRD and TEM analysis indicated the formation of a solid solution of copper oxide species on the surface of gamma-Al2O3. XAS and TPR data demonstrated variations in copper oxidation states among the catalysts.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Liwei Fang, Shiyang Niu, Shengsen Wang, Yiqing Lu, Yuanhui Cheng
Summary: In this study, PtNi alloy on nitrogen-doped carbon and SnO2 dual-support was designed to modulate the metal-support interaction, resulting in improved catalytic activity and stability for oxygen reduction reaction. The SnO2/PtNi/NC catalyst exhibited a strongly coupled interface, enhanced electron transfer, and higher half-wave potential compared to PtNi/NC and commercial Pt/C.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Shohei Harada, Duanxing Li, Kenta Iyoki, Masaru Ogura
Summary: This study investigates the catalytic performance of a composite catalyst composed of ZnZrOX and H-zeolite for the hydrogenation of CO2. The deactivation of the composite catalyst is influenced by ion exchange of Zn2+ and/or coke, with their effects differing based on the zeolite structure. Separating the grains of the composite catalyst can prevent deactivation.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Laura Proano, Christopher W. Jones
Summary: In this study, NiGa alloy particles supported on CeO2, ZrO2, and ZrO2-CeO2 solid solutions were prepared and characterized. The nature of the support was found to have a significant influence on the catalyst's activity and selectivity, with the crystalline structure of ZrO2 having the greatest impact. Pure ZrO2 showed the highest methanol selectivity and CO2 conversion at high Zr:Ce ratios. In equimolar and Ce-rich conditions, basic sites and oxygen vacancies were found to be the key parameters affecting methanol production.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Liyan Zhang, Yinze Yang, Leilei Zhou, Fengyu Zhao, Haiyang Cheng
Summary: 1,6-Hexamethylenediamine was successfully synthesized via the reductive amination of 1,6-hexanediol using a Ru/PRL(x)-Al2O3 catalyst. The highly dispersed and anchored Ru species, formed by 1,10-phenanthroline (PRL), played a crucial role in the catalytic reaction. The formation of new acid-base pairs, electron deficient Ru species, and smaller nanoparticles contributed to the improved catalytic performances of the Ru/PRL-Al2O3 catalyst.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Anita Horvath, Miklos Nemeth, Andrea Beck, Gyorgy Safran, Valeria La Parola, Leonarda Francesca Liotta, Gregor Zerjav, Matevz Roskaric, Albin Pintar
Summary: This study investigates the catalytic and structural changes caused by the addition of 0.25 wt% indium in a 3% Ni/CeO2-Al2O3 catalyst prepared by impregnation method. The results show that the addition of indium can decrease the activity of the catalyst, but it improves its stability and reduces coking.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Ankush Kularkar, Vaibhav Vilas Khedekar, Sachin D. Chaudhari, Mudavath Ravi, Sadhana S. Rayalu, Penumaka Nagababu
Summary: Efficiently addressing the challenges of photocatalytic CO2 reduction to CH3OH is crucial. This study developed Zn-BTC MOF and its composites with CaIn2S4, achieving highly efficient and robust photocatalytic CO2 reduction to CH3OH under ambient conditions, using H2O2 as the hydrogen source. Among the composites, ZMCIS4 demonstrated excellent performance with a CH3OH evolution of 49100 μmol/g.cat and a quantum efficiency of approximately 78.41%. The enhanced performance was attributed to the production of nascent hydrogen atoms (H center dot) through the photo-splitting of H2O2 on the ZMCIS surface.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Dan Liu, Yudong Li, Chengyu Wang, Haiyue Yang, Rong Wang, Shujun Li, Xiaohui Yang
Summary: In this study, a self-supporting three-dimensional porous Co3O4 nanobelt array decorated on nickel foam (P-Co3O4 -NBA@NF) electrode with numerous active sites was successfully constructed for the oxidation of 5-Hydroxymethylfurfural (HMF) to 2,5-furan dicarboxylic acid (FDCA). The P-Co3O4 -NBA@NF electrode demonstrated high conversion efficiency, selectivity, and Faraday efficiency, as well as remarkable long-term stability. This research provides a promising electrocatalyst for biomass conversion.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Yimin Li, Enggah Kurniawan, Fumiya Sato, Takayoshi Hara, Yasuhiro Yamada, Satoshi Sato
Summary: In this study, several silica-alumina catalysts modified with Ag were examined for the dehydration of 1,3-butanediol to 1,3-butadiene. Among them, an amorphous silica-alumina catalyst (SAL-3) modified with Ag showed the highest improvement in catalytic activity and stability when operated in H2 flow. The generation of reversible acid sites was found to be the reason behind the enhanced activity and stability of this Ag/SAL-3 catalyst. The effects of various parameters on the catalytic activity of Ag/SAL-3, such as reaction temperature, contact time, Ag content, and carrier gas, were investigated.
APPLIED CATALYSIS A-GENERAL
(2024)