Article
Materials Science, Multidisciplinary
Viktoria Hajdu, Gabor Muranszky, Adam Prekob, Ferenc Kristaly, Bela Fiser, Janos Lakatos, Bela Viskolcz, Laszlo Vanyorek
Summary: This study investigates the application of transition metal-containing ferrites decorated with palladium catalysts in the hydrogenation of nitrobenzene. Three magnetic catalysts were prepared using sonochemical and combustion steps, and the Pd/ZnFe2O4 and Pd/NiZnFeO4 catalysts exhibited the highest activity, achieving high yields in a short reaction time.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Applied
Xiaorui Wang, Rongrong Jin, Wangwei Yan, Haomiao Li, Zhou-Jun Wang
Summary: This study successfully developed an efficient Ni7Fe1/Al2O3 bimetallic catalyst with outstanding low-temperature activity and stability, clarifying the effect of bimetallic synergism in CO2 methanation.
Article
Chemistry, Multidisciplinary
Chaofan Ma, Yebin Zhou, Wei Yan, Wei He, Qiangqiang Liu, Zhen Li, Hongzheng Wang, Guowei Li, Yuanyuan Yang, Wenfeng Han, Chunshan Lu, Xiaonian Li
Summary: A novel porous carbon-metal composite was fabricated using nitrogen-doped carbon quantum dots and nickel. The resulting carbon nanosheet embedded with metal nanoparticles showed excellent catalytic activity and selectivity, suggesting its potential as a replacement for industrial catalysts.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Energy & Fuels
Jiashi Wang, Ce Du, Qinhong Wei, Wenzhong Shen
Summary: Two-dimensional metallic Pd nanosheets were synthesized via an ion-exchange method and exhibited higher catalytic activity compared to Pd nanoparticles in catalytic reactions.
Article
Chemistry, Multidisciplinary
Yanru Zhang, Ying Wang, Qingli Qian, Yang Li, Bernard Baffour Asare Bediako, Jingjing Zhang, Junjuan Yang, Zhiyan Li, Buxing Han
Summary: This paper presents a method for synthesizing higher carboxylic acids from CO2 and H2 through the reaction of alcohols. The reaction is effectively accelerated by a catalytic system consisting of iridium(iii) acetate and LiI. The method is applicable to various alcohols and the reaction mechanism is proposed based on systematic control experiments.
Article
Chemistry, Physical
Xinru Yang, Min Huang, Hongyang Huang, Dalin Li, Yingying Zhan, Lilong Jiang
Summary: A series of supported Ni catalysts were prepared and investigated for CO2 methanation. The catalysts exhibited different structural properties and catalytic activities depending on the Ni:Mg molar ratio. Among the catalysts, Ni2Mg1Al-HT showed the highest activity and stability, with well-dispersed Ni particles and a large amount of surface Ni-0 species. The reaction was found to proceed via the formate formation route.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Review
Chemistry, Multidisciplinary
Jiawen Guo, Huimin Liu, Yuqiao Li, Dezheng Li, Dehua He
Summary: Selective hydrogenation of nitrobenzene (SHN) is an important method to synthesize aniline with high research significance. Photocatalysis provides a sustainable and efficient approach for SHN at room temperature and low hydrogen pressure. Designing efficient photocatalysts is crucial for the success of this reaction.
FRONTIERS IN CHEMISTRY
(2023)
Article
Chemistry, Physical
Victor Hugo Grisales Diaz, Mark J. Willis
Summary: This study presents a numerical investigation into the production of aniline through the hydrogenation of nitrobenzene and hydrogen production through steam methane reforming in a directly coupled membrane reactor. By optimizing the operating conditions and taking advantage of the membrane reactor, the recovery of aniline and hydrogen yield could be significantly improved while reducing energy consumption.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Review
Chemistry, Physical
Nur Diyan Mohd Ridzuan, Maizatul Shima Shaharun, Mohd Azrizan Anawar, Israf Ud-Din
Summary: This review critically discusses recent developments in the application of nickel-based catalysts for CO2 methanation, focusing on the effects of supporting material, promoters, and catalyst composition. Additionally, the thermodynamics, kinetics, and mechanism of CO2 methanation are briefly addressed.
Article
Chemistry, Inorganic & Nuclear
Jiarui Chang, Jia-Xue Mao, Man Ding, Jie Zhang, Xuenian Chen
Summary: The catalytic reactivities of group 10 metal hydride complexes supported by a PNCNP pincer ligand towards CO2 reduction with NH3 center dot BH3 and NaBH4 have been investigated. The reactions proceed through the insertion of the C=O bond in CO2 into the metal-hydrogen bond in the complexes, forming formato species and regenerating the metal complexes. This work represents a rare example of catalytic transfer hydrogenation of CO2 to formic acid under mild conditions and the first example of 4 equiv of CO2 uptake by NaBH4.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Carena L. Daniels, Da-Jiang Liu, Marquix A. S. Adamson, Megan Knobeloch, Javier Vela
Summary: This study investigates the selectivity of intermetallic nanoparticles in catalytic reduction of nitroarenes, revealing that certain intermetallic nanoparticles exhibit high selectivity for azo(xy) products. By combining machine learning and molecular dynamics, a deeper understanding of the unique selectivity of these materials is achieved, showcasing the potential for intermetallic nanoparticles to be both active and selective in various important chemical transformations and applications.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Energy & Fuels
Mohammad Hasan Khademi, Mohammad Lotfi-Varnoosfaderani
Summary: This research focuses on a mass- and heat-integrated multi-tubular membrane reactor for co-production of aniline and syngas through nitrobenzene hydrogenation and glycerol steam reforming. By adjusting operating conditions, high conversion rates of glycerol and nitrobenzene can be achieved, along with a suitable H2/CO ratio for Fischer-Tropsch and methanol synthesis processes in the syngas.
Article
Chemistry, Physical
Nienke L. Visser, Oscar Daoura, Philipp N. Plessow, Luc C. J. Smulders, Jan Willem de Rijk, Joseph A. Stewart, Bart D. Vandegehuchte, Felix Studt, Jessi E. S. van der Hoeven, Petra E. de Jongh
Summary: In this study, the effects of nickel particle size on catalytic stability, activity, and selectivity in CO2 methanation were investigated. Increasing the nanoparticle size led to higher catalytic activity, while the apparent activation energy remained the same. Testing at industrially relevant pressures revealed that the highest selectivity was achieved at high CO2 conversions and pressures, and the selectivity was dependent on particle size, with larger particles being more active and selective towards methane.
Article
Chemistry, Physical
Darya L. Gurina, Yury A. Budkov, Mikhail G. Kiselev
Summary: The study used molecular dynamics to investigate the impregnation of PMMA matrix with MFA in supercritical carbon dioxide, revealing that MFA is distributed in molecular form inside the polymer matrix.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Haibin Yu, Jianglong Liu, Qiaoqiao Wan, Guangzhen Zhao, Enyuan Gao, Jingjing Wang, Bu Xu, Guoming Zhao, Xing Fan
Summary: Catalysts with 1 wt% gold doped on various morphologies of ceria were prepared and used for the hydrogenation of nitrobenzene. The catalyst supported by nano-cube CeO2 showed the highest nitrobenzene conversion and aniline selectivity. The acid-base properties, morphology and valance of Au and Ce were found to be key factors in the adsorption of nitrobenzene and the formation of aniline on the catalyst.
MOLECULAR CATALYSIS
(2023)
Article
Chemistry, Physical
Yifan Sun, Ye Lv, Wei Li, Jinli Zhang, Yan Fu
Summary: In this study, PtRu electrocatalysts were fabricated on carbon paper via cyclic electrodeposition for the electrocatalytic hydrogenation (ECH) of phenol. The Pt3Ru3 catalyst exhibited excellent activity and stability for the conversion of phenol to cyclohexanol at ambient temperature and various current densities. The in situ Raman spectroscopy and kinetic study revealed the hydrogenation mechanism of phenol over Pt3Ru3 in acidic electrolyte, providing an effective electrochemical strategy for the facile construction of durable electrode materials and efficient phenol hydrogenation.
JOURNAL OF CATALYSIS
(2024)
Article
Chemistry, Physical
Amir Shahzad, Khezina Rafiq, Muhammad Zeeshan Abid, Naseem Ahmad Khan, Syed Shoaib Ahmad Shah, Raed H. Althomali, Abdul Rauf, Ejaz Hussain
Summary: Photocatalytic hydrogen production through water splitting is an effective method for meeting future energy demands. In this study, researchers synthesized a 1 % Ag2S/Cu2S co-doped CdZnS catalyst and found that it can produce hydrogen at a higher rate. The co-doping of Ag2S and Cu2S in the CdZnS catalyst showed a synergistic effect, with Ag2S promoting oxidation reactions and Cu2S promoting reduction reactions.
JOURNAL OF CATALYSIS
(2024)
