Article
Chemistry, Physical
Nicole S. Willeit, Wilhelm Klein, Peter Coburger, Elke Fritz-Langhals, Thomas F. Faessler
Summary: Single-site catalysis is an important strategy for optimizing heterogeneous catalytic reactions. A synthetic protocol for synthesizing four cluster compounds with transition metals embedded in a polyhedral cluster has been presented. The catalytic potential of the compounds has been investigated for various olefin isomerisation reactions. The results show that these single-site homogeneous catalysts can significantly increase the efficiency of catalysts and allow for sustainable use of expensive and less abundant transition metals.
Article
Chemistry, Multidisciplinary
Hui Shen, Zhen Xu, Maryam Sabooni Asre Hazer, Qingyuan Wu, Jian Peng, Ruixuan Qin, Sami Malola, Boon K. Teo, Hannu Hakkinen, Nanfeng Zheng
Summary: Deciphering the atomic arrangement of hybrid surface ligands on metal nanoparticles is a key step towards understanding their complex geometrical and electronic structures, which can have potential bio-applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Bernardo Raimundo, Daisuke Kino, Nijika Kitgawa, Yasuaki Tokudome, Carla D. Nunes
Summary: In this study, low-cost CoAl LDH materials were demonstrated to be highly effective catalysts for the hydrogenation of aromatic nitro compounds to amino compounds under mild conditions, thanks to their high activity and unique physical and chemical properties. The as-synthesized CoAl LDH catalysts exhibited high conversion rates and selectivity for 7 different aromatic nitro compounds with competing functional groups, using sodium borohydride at room temperature and 1 atm. The reaction was completed in a short time, ranging from 5 to 150 min, and the catalyst showed excellent stability with over 8 cycles of reuse without significant loss of activity.
APPLIED CLAY SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Zhenzhong Zhang, Takuya Ikeda, Haruno Murayama, Tetsuo Honma, Makoto Tokunaga, Yukihiro Motoyama
Summary: Carbon-nitrogen bond formation is crucial for the production of valuable chemicals. This study presents a novel palladium catalyst that selectively hydrogenates imines while leaving other carbonyl groups intact. This catalyst allows for efficient synthesis of functionalized secondary amines under mild conditions.
CHEMISTRY-AN ASIAN JOURNAL
(2022)
Review
Chemistry, Multidisciplinary
Marilina Douloudi, Eleni Nikoli, Theodora Katsika, Michalis Vardavoulias, Michael Arkas
Summary: With the rapid evolution of nanoscience, there is a growing interest in novel nanomaterials with combinatory features. Hybrid composites offer simple, budget-conscious solutions that can cater to multiple needs while being applicable in a wide range of nanotechnology-related studies.
Article
Chemistry, Multidisciplinary
Hoeun Seong, Vladimir Efremov, Gibeom Park, Hyunwoo Kim, Jong Suk Yoo, Dongil Lee
Summary: This study successfully identified active sites using gold nanoclusters as model catalysts in the electrochemical CO2 reduction reaction. The research showed that dethiolated Au sites are the active sites, and the CO2RR activity is determined by the number of active sites on the cluster surface.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Inorganic & Nuclear
Rupam Sen, Sudipta De, Antonio M. dos Santos, Livia B. L. Escobar, Paula Cristina Brandao, Filipe A. Almeida A. Paz, Mario S. Reis, Zhi Lin
Summary: A novel triazole bridged cobalt fluorophosphate coordination polymer has been synthesized and characterized. The compound consists of Co-5 clusters that build the whole framework, with all cobalt centers in octahedral geometry. The compound shows antiferromagnetic interactions among the Co(II) ions and exhibits high catalytic activity in the conversion of olefins to their corresponding epoxides, with a selectivity of up to 65% and high TON numbers.
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
(2023)
Review
Food Science & Technology
Shuangshuang Zhang, Muhammad Bilal, Jakub Zdarta, Jiandong Cui, Ashok Kumar, Marcelo Franco, Luiz Fernando Romanholo Ferreira, Hafiz M. N. Iqbal
Summary: Pectinases are emerging enzymes in the biotechnology industry, with diverse industrial applications. Enzyme immobilization has become a promising approach to address challenges such as low operational stability and recyclability, leading to improved enzyme performance and commercial feasibility. Immobilization of pectinases using polymers and nanostructured materials has shown to enhance their thermal stability and catalytic characteristics for industrial exploitability.
FOOD RESEARCH INTERNATIONAL
(2021)
Article
Chemistry, Multidisciplinary
Noah U. Naef, Stefan Seeger
Summary: Chemical vapor phase deposition was used to create hydrophobic nanostructured surfaces on glass slides, with subsequent creation of hydrophilic channels by sputtering a metal catalyst on them. The resulting open-channel system showed superior catalytic performance compared to nanostructure-free reference systems, with the created nanostructures proving stable under reaction conditions and exhibiting improved catalysis compared to flat reference systems.
Review
Chemistry, Physical
Jonathan Quinson
Summary: Precious metal nanomaterials, including iridium-based nanomaterials, are widely used in various fields such as optics, catalysis, pollution management, sensing, and medicine. Despite the relatively small size and easy synthesis of iridium nanoparticles and clusters, there is still limited understanding of their formation mechanisms. This review provides an overview of synthetic strategies for iridium nanoparticles and discusses their applications. Supplementary material is also provided, including synthesis protocols, the historical role of iridium nanoparticles in nanoscience, and their applications in catalysis.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Yang Li, Zhaojian Zeng, Yong Chen, Yuanming Zhang, Wenjing Wang, Xiaoming Xu, Mengyang Du, Zhaosheng Li, Zhigang Zou
Summary: In this study, a bimetallic oxide catalyst FeVO4 with durable photocatalytic CO2 reduction activity was reported. FeVO4 is an indirect band gap semiconductor with a larger specific surface area and more oxygen vacancies. By tuning the morphology and exposing basic active sites, the catalytic performance of FeVO4 nanowires for CO2 reduction can be greatly improved.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Inorganic & Nuclear
Chong Wang, Qing-Wen Zhu, Jian-Gang Yu, Xin Li, Hao Li, Li-Ying Sun, Ying-Feng Han
Summary: Here, we demonstrate that a naphthalenediimide skeleton can promote the hierarchical assembly of a metal N-heterocyclic carbene macrocycle into various supramolecular structures. The macrocycle displays solvent-dependent supramolecular isomerization, and two different polymorphs are obtained from DMF and MeCN solvents. Co-precipitation with cuprous bromide anion leads to the formation of a tertiary structure. By utilizing donor-acceptor interactions, two cocrystal complexes with different supramolecular systems are successfully created. Additionally, the solid-state structure of the corresponding radical macrocycle confirms the presence of an ordered linear array formed through noncovalent interactions with the NHC-Au(i) macrocycle.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Biochemistry & Molecular Biology
James M. Thode, Daniel P. Harris, Cheng Wan, Brian M. Leonard
Summary: Research on platinum group transition metal carbides has been limited due to a lack of reliable synthetic approaches. The simple co-precipitation of Pd and W or Mo precursors followed by annealing can lead to the formation of ternary carbide powders, with increased solubility of Pd in the systems. These new materials show enhanced activity for the methanol oxidation reaction compared to industrial Pd/C.
Article
Polymer Science
Md Faizul Islam, Emely Adame-Ramirez, Eric R. Williams, Preecha Kittikhunnatham, Andrew Wijesekera, Siteng Zhang, Ting Ge, Morgan Stefik, Mark D. Smith, Perry J. Pellechia, Andrew B. Greytak, Linda S. Shimizu
Summary: In this study, pyrrole and ethylenedioxythiophene monomers are loaded into a self-assembled bis-urea host and polymerized within its nanochannels, dramatically altering the properties of the crystalline complexes. The findings suggest that supramolecular polymerization strategies have the potential to easily modulate the properties of nanostructured materials.
Review
Chemistry, Multidisciplinary
Nabanita Pal, Debabrata Chakraborty, Eun-Bum Cho, Jeong Gil Seo
Summary: Nanoscopic materials play a versatile role in various emerging research fields. Due to their controllable particle size, diverse forms and morphologies, high surface area, and involvement of transition and non-transition metals, nanomaterials have become one of the most important areas of advanced research. By introducing porosity, nanomaterials have shown more promise than their bulk counterparts in catalysis, biomedicine, drug delivery, and other areas. This review aims to compile a set of papers on new synthesis methods and versatile applications of porous nanomaterials to provide an overview of current state-of-the-art research, particularly in catalysis and sensor area.
Article
Chemistry, Multidisciplinary
Tomohiro Yasukawa, Yuuki Saito, Hiroyuki Miyamura, Shu Kobayashi
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2016)
Review
Chemistry, Organic
Hiroyuki Miyamura, Shu Kobayashi
JOURNAL OF SYNTHETIC ORGANIC CHEMISTRY JAPAN
(2017)
Article
Chemistry, Multidisciplinary
Hong-Gang Cheng, Javier Miguelez, Hiroyuki Miyamura, Woo-Jin Yoo, Shu Kobayashi
Article
Chemistry, Multidisciplinary
Hiroyuki Miyamura, Kohei Nishino, Tomohiro Yasukawa, Shu Kobayashi
Article
Chemistry, Physical
Jack O. Weston, Hiroyuki Miyamura, Tomohiro Yasukawa, Dedi Sutarma, Chloe A. Baker, Preabjot K. Singh, Mariela Bravo-Sanchez, Naoko Sano, Peter J. Cumpson, Yulia Ryabenkova, Shu Kobayashi, Marco Conte
CATALYSIS SCIENCE & TECHNOLOGY
(2017)
Article
Chemistry, Multidisciplinary
Hiroyuki Miyamura, Aya Suzuki, Tomohiro Yasukawa, Shu Kobayashi
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2018)
Article
Chemistry, Organic
Aya Suzuki, Hiroyuki Miyamura, Shu Kobayashi
Article
Chemistry, Multidisciplinary
Hiroyuki Miyamura, Fumiya Tobita, Aya Suzuki, Shu Kobayashi
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2019)
Article
Chemistry, Applied
Hiroyuki Miyamura, Tomohiro Yasukawa, Zhiyuan Zhu, Shu Kobayashi
ADVANCED SYNTHESIS & CATALYSIS
(2020)
Review
Chemistry, Multidisciplinary
Tomohiro Yasukawa, Hiroyuki Miyamura, Shu Kobayashi
ACCOUNTS OF CHEMICAL RESEARCH
(2020)
Article
Chemistry, Multidisciplinary
Hiroyuki Miyamura, Shu Kobayashi
Summary: This paper describes the development of cooperative and synergistic catalyst systems of heterogeneous Rh-Pt bimetallic nanoparticle catalysts, Rh-Pt/DMPSi-Al2O3, and Sc(OTf)(3) in the liquid phase for the hydrogenation of arenes under very mild conditions. The cooperative activation achieved significant rate acceleration and successful hydrogenation of challenging substrates with strong electron-donating groups and sterically hindered substituents was demonstrated.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Hiroyuki Miyamura, Robert G. Bergman, Kenneth N. Raymond, F. Dean Toste
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2020)
Review
Chemistry, Organic
Hiroyuki Miyamura, Fumiya Tobita, Aya Suzuki, Shu Kobayashi
JOURNAL OF SYNTHETIC ORGANIC CHEMISTRY JAPAN
(2020)
Article
Chemistry, Multidisciplinary
Hyemin Min, Hiroyuki Miyamura, Tomohiro Yasukawa, Shu Kobayashi
Article
Chemistry, Applied
Javier Miguelez, Hiroyuki Miyamura, Shu Kobayashi
ADVANCED SYNTHESIS & CATALYSIS
(2017)
