Review
Chemistry, Physical
Shuxian Qiu, Yingxin Wu, Yongxian Tan, Qiuping Dai, Xingyuan Gao, Sibudjing Kawi
Summary: To optimize the surface property of Al2O3-based nano-catalysts, various modifications focusing on the surface acidity and basicity have been applied and proven effective in promoting the CO2 adsorption and activation, thus enhancing the catalytic performances.
Article
Chemistry, Physical
Tharun Jose, Jamal Ftouni, Pieter C. A. Bruijnincx
Summary: The study demonstrates the efficient and recyclable nature of structured hydroxyapatite composite (SHC) as solid base catalysts for various condensation reactions. Characterization of SHC catalysts and recycling experiments show their stability and high performance, indicating potential industrial applications.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Physical
Dan Yang, Gui-Qiu Huang, Han-Qing Ge, Chang Liu, Feng-Wei Zhao, Zhao-Tie Liu, Jian Lu, Zhong-Wen Liu
Summary: The effect of acidity/basicity on monoethanolamine dehydration has been investigated using acid-activated montmorillonite (Acid-MMT) as catalyst. It was found that a lower amount of acidic/basic sites leads to a higher selectivity of ethylenimine (EI) via intramolecular dehydration of monoethanolamine (MEA), while intermolecular dehydration of MEA is inhibited. Additionally, a more balanced amount of acidic and basic sites favors the intramolecular dehydration reaction.
APPLIED CATALYSIS A-GENERAL
(2023)
Article
Chemistry, Physical
Dong-Chang Kang, Eun-Jeong Kim, Dong-Pyo Kim, Chae-Ho Shin
Summary: Zn-Al mixed oxides with different acidic and basic nature were synthesized and applied to the amination of methanol. The conversion of methanol and selectivity to acetonitrile increased at pH 9.5. The catalyst activity correlated with desorption temperatures, while selectivity was influenced by the proportion of weak base sites on the catalyst surface.
APPLIED CATALYSIS A-GENERAL
(2022)
Article
Chemistry, Physical
Lea Hombach, Nick Hausen, Alba Garzon Manjon, Christina Scheu, Hanna Kraffczyk, Marcus Rose, Jakob Albert, Anna Katharina Beine
Summary: A solid acid catalyst with good activity and recyclability was developed by immobilizing phosphotungstic acid on activated carbon. It selectively produced xylose in the hydrolysis of lignocellulosic biomass model reaction, and could be easily separated and reused.
APPLIED CATALYSIS A-GENERAL
(2023)
Article
Chemistry, Physical
Jian Wang, Jiarui Zhao, Junhong Fu, Cuilan Miao, Songyan Jia, Peifang Yan, Jiahui Huang
Summary: This study investigates the selectivity of metal oxide supported Pt catalysts in the hydrogenation of 5-hydroxymethylfurfural (HMF) to 2,5-bis(hydroxymethyl)furan (BHMF). It is found that Pt catalyst supported on basic metal oxide MgO shows higher selectivity for BHMF, while Pt catalyst supported on acidic metal oxide TiO2 exhibits lower selectivity. The chemisorption of HMF on these catalysts indicates that the basic sites of metal oxides promote BHMF selectivity, while the acidic sites favor the adsorption of C-C group of HMF, reducing the BHMF selectivity. The cooperation between basic sites and Pt atoms is proposed to enhance the selectivity for BHMF. Comprehensive studies on reactivity, recyclability, stability, and solvent effect of the Pt/MgO catalyst are also conducted.
APPLIED CATALYSIS A-GENERAL
(2022)
Article
Chemistry, Multidisciplinary
Hen Ohayon Dahan, Miron V. Landau, Moti Herskowitz
Summary: The basicity/acidity ratio of the catalysts has a significant impact on the yield of organic liquid C5-C11 and light olefins C2-C4, with an increase in residence time resulting in a significant increase in the content of iso-olefins and aromatics in the organic liquid.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Chemistry, Physical
Jia Lin, Xiaohua Chen, Yong Zheng, Yihong Xiao, Ying Zheng, Lilong Jiang
Summary: Improving the sulfur resistance of palladium-based catalysts is essential for the sustainable and efficient combustion of methane. In this study, the surface properties of the catalysts were adjusted to regulate the behavior of sulfur species on the active sites and supports. The results showed that the accumulation of sulfur species in the catalysts increased linearly with the surface basicity and was restrained in catalysts with high surface acidity. The zirconium-doped alumina supported palladium catalyst exhibited moderate surface acidity/basicity and showed excellent catalytic activity in the presence of SO2 and after regeneration. The enhanced sulfur resistance was attributed to the interaction between supports and sulfur species, the decomposition of zirconium sulfates, the suppression of surface/bulk aluminum sulfates formation, and the effective regeneration of PdO phase. The establishment of a quantitative correlation between the accumulated sulfur species, surface acidity/basicity, and catalytic performance provides a pathway for the development of sulfur-resistant palladium-based catalysts for oxidation reactions.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Zichao Yan, Qiang Tian, Yaru Liang, Lingyan Jing, Zhe Hu, Weibo Hua, Akhil Tayal, Weihong Lai, Wanlin Wang, Jian Peng, Yun-Xiao Wang, Jian Liu, Shu-Lei Chou, Gao-Qing (max) Lu, Huakun Liu, Shi-Xue Dou
Summary: A novel strategy of electrochemically releasing nano-silver catalytic sites to accelerate Na2S nucleation in room-temperature Na/S batteries has been proposed, leading to excellent reversible capacity and ultra-stable cycling performance of the sulfur cathode. Further understanding of the electrochemically self-releasing mechanism and catalysis via in situ transmission electron microscopy (TEM) would help optimize the working mechanism and develop more stable high-power room-temperature Na/S batteries.
CELL REPORTS PHYSICAL SCIENCE
(2021)
Article
Chemistry, Physical
Anyang Peng, Andrew S. Rosen, Randall Q. Snurr, Harold H. Kung
Summary: This study calculates the CO2 adsorption energies on different surfaces of nickel oxide doped with Mg, magnesium oxide doped with Ni, and their solid solution. The results show that the adsorption energy is mainly influenced by electronic interactions, and a single substitution in magnesium oxide doped with nickel can create stronger CO2 binding sites. This research provides guidance for tailoring the Lewis basicity of metal oxides.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Wenliang Wu, Hongshuai Gao, Bin Hai, Binqi Wang, Min Yu, Yi Nie
Summary: The study found that [PSmim][HSO4] is the most effective catalyst among the four SFILs tested, significantly reducing reaction time and decreasing the ratio of n-octanol to glucose. Additionally, [PSmim][HSO4] can be easily regenerated and reused multiple times.
Article
Chemistry, Physical
Shunlong Ju, Chongyang Yuan, Jiening Zheng, Long Yao, Tengfei Zhang, Guanglin Xia, Xuebin Yu
Summary: This study evaluates the catalytic activities of single-atom catalysts in aluminum-sulfur batteries, and finds that stable single-atom catalysts can promote the conversion reactions and improve the specific capacity of the batteries. The unique aluminum-binding interaction between SACo@NC and AlPSs is critical for its superior catalytic activity.
ENERGY STORAGE MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Juanjuan Huo, Ziyan Shen, Xianjun Cao, Lu Li, Yufei Zhao, Hao Liu, Guoxiu Wang
Summary: This review provides a comprehensive summary of the macro/micro-environment regulation strategies for carbon-supported single-atom catalysts (SACs) in highly efficient hydrogen/oxygen conversion reactions. The macro-environment engineering strategies focus on altering the properties and structures of carbon substrates, while the micro-environment engineering strategies target the atomic and electronic structures of metal centers. The co-boosted effect from the macro/micro-environments plays a crucial role in the catalytic activity.
Article
Chemistry, Physical
Hao Zhou, Fucan Zhang, Keming Ji, Junhua Gao, Ping Liu, Kan Zhang, Se Wu
Summary: This study systematically investigated the comparative performances of different metal-impregnated HZSM-5 catalysts for propane conversion, revealing that the acidity of the catalysts is significantly influenced by the loading metal. The different metal modifications lead to varied product selectivity during propane conversion, and the mechanism of propane conversion was discussed based on the different acidities of the metal-modified catalysts.
Article
Chemistry, Physical
Kushanava Bhaduri, Anindya Ghosh, Aline Auroux, Sauvik Chatterjee, Asim Bhaumik, Biswajit Chowdhury
Summary: The craftsmanship in catalyst synthesis is fascinating when catalytic activity of the material can be enhanced by tuning the synthesis conditions. By tailoring the structural and chemical behavior of tantalum phosphates (TaP) using different structure directing agents, it is possible to create efficient TaP catalysts for glycerol transformation reactions. The study provides a pathway for analytical architecture and construction of highly efficient TaP catalysts.
MOLECULAR CATALYSIS
(2022)
Article
Chemistry, Inorganic & Nuclear
F. Carniato, C. Bisio, C. Evangelisti, R. Psaro, V. Dal Santo, D. Costenaro, L. Marchese, M. Guidotti
DALTON TRANSACTIONS
(2018)
Article
Chemistry, Inorganic & Nuclear
Claudio Evangelisti, Matteo Guidotti, Cristina Tiozzo, Rinaldo Psaro, Nataliya Maksimchuk, Irina Ivanchikova, Alexandr N. Shmakov, Oxana Kholdeeva
INORGANICA CHIMICA ACTA
(2018)
Article
Chemistry, Physical
Chiara Bisio, Alessandro Gallo, Rinaldo Psaro, Cristina Tiozzo, Matteo Guidotti, Fabio Carniato
APPLIED CATALYSIS A-GENERAL
(2019)
Article
Chemistry, Physical
Nicola Scotti, Nicoletta Ravasio, Claudio Evangelisti, Rinaldo Psaro, Michele Penso, Prashant S. Niphadkar, Vijay V. Bokade, Matteo Guidotti
Article
Biochemistry & Molecular Biology
Fabio Carniato, Giorgio Gatti, Chiara Vittoni, Andrey M. Katsev, Matteo Guidotti, Claudio Evangelisti, Chiara Bisio
Article
Chemistry, Multidisciplinary
Stefano Marchesi, Matteo Guidotti, Leonardo Marchese, Claudio Evangelisti, Fabio Carniato, Chiara Bisio
Summary: This study utilizes the co-presence of luminescent Eu-III and catalytic Nb-V metal sites in the saponite structure for simultaneous detection and catalytic abatement of sulfur-containing blister chemical warfare agents. Functionalized saponites can quickly detect sulfur mustard simulants and effectively catalyze the decomposition of substrates in the presence of aqueous hydrogen peroxide.
CHEMISTRY-A EUROPEAN JOURNAL
(2021)
Article
Chemistry, Inorganic & Nuclear
Stefano Marchesi, Simone Nascimbene, Matteo Guidotti, Chiara Bisio, Fabio Carniato
Summary: Paramagnetic metal ions with different charges and ionic radii were effectively removed from aqueous solutions using a synthetic saponite clay. The saponite demonstrated good sorption capacity and could be regenerated after metal ion uptake.
DALTON TRANSACTIONS
(2022)
Review
Chemistry, Multidisciplinary
Chiara Bisio, Fabio Carniato, Matteo Guidotti
Summary: This review provides an overview of the use and role of coordination complexes as precursors for the generation of hybrid catalysts in oxidation reactions for fine chemical synthesis. The understanding of active site formation in hybrid catalysts is emphasized, and different families of coordination precursors are considered. Each example includes a brief analysis of synthesis, characterization, and catalytic performance. Special attention is given to the chemical environment of the active metal center's first coordination sphere. By integrating advantages of both homogeneous and heterogeneous systems, catalysts obtained through heterogenization, grafting, or anchoring of homogeneous catalysts exhibit enhanced catalytic performance. Deposition of coordination complexes onto preformed supports offers a versatile strategy for designing novel catalysts with tailored and controlled properties.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Irina D. Ivanchikova, Olga Zalomaeva, Nataliya Maksimchuk, Olga A. Stonkus, Tatiana S. Glazneva, Yurii A. Chesalov, Alexander N. Shmakov, Matteo Guidotti, Oxana A. Kholdeeva
Summary: Mesoporous zirconium-silicates were prepared using two different methodologies. The catalytic performance of the Zr-Si catalysts in various reactions was evaluated, and it was found that catalysts with higher contents of oligomeric ZrO2 species exhibited higher activity. The nature of the alkene and its molecular hindrance were found to be crucial factors affecting catalyst deactivation.
Article
Chemistry, Applied
Matteo Formenti, Delia Blasi, Elena Cariati, Lucia Carlucci, Alessandra Forni, Clelia Giannini, Matteo Guidotti, Stefano Econdi, Daniele Malpicci, Daniele Marinotto, Elena Lucenti
Summary: In this study, two derivatives were used as sensor species for the quantitative detection of explosives. The fluorescence of (CHO)2TTPyr at 565 nm showed a sensitive response towards picric acid, making it a potential alternative to TTPyr for analytes absorbing in the blue region.
Article
Chemistry, Inorganic & Nuclear
Stefano Marchesi, Geo Paul, Matteo Guidotti, Stefano Econdi, Chiara Bisio, Fabio Carniato
Summary: Linear saturated or unsaturated aldehydes were impregnated into synthetic saponite clay using an incipient-wetness deposition method. Cetyltrimethylammonium (CTA(+)) species were added to increase aldehyde loading and enhance the hydrophobic character of the clay. The aldehydes were mainly adsorbed on the surface of the clay particles, with a small fraction inside the interlayer space. In CTA(+)-modified saponites, the concentration of saturated aldehydes was higher compared to pure clay. These findings are promising for the development of novel layered solids containing bioactive molecules for eco-friendly and sustainable crop protection.
Article
Public, Environmental & Occupational Health
Davide Mileto, Alessandro Mancon, Federica Staurenghi, Alberto Rizzo, Stefano Econdi, Maria Rita Gismondo, Matteo Guidotti
Summary: In experiments, it was found that adjusting the pH of hydrogen peroxide by adding citric acid can enhance its effectiveness in inactivating the novel coronavirus, while aqueous solutions of sodium percarbonate were also proven to effectively deactivate the virus.
ACS CHEMICAL HEALTH & SAFETY
(2021)
Article
Chemistry, Multidisciplinary
Stefano Marchesi, Fabio Carniato, Matteo Guidotti, Mauro Botta, Leonardo Marchese, Chiara Bisio
NEW JOURNAL OF CHEMISTRY
(2020)
Article
Agriculture, Multidisciplinary
M. V. Savchuk, M. F. Starodub, C. Bisio, M. Guidotti, M. M. Lisovyy
AGRICULTURAL SCIENCE AND PRACTICE
(2018)
Article
Zoology
Elisabetta Gargani, Sauro Simoni, Claudia Benvenuti, Riccardo Frosinini, Gian Paolo Barzanti, Pio Federico Roversi, Alessandro Caselli, Matteo Guidotti
REDIA-GIORNALE DI ZOOLOGIA
(2018)
