Review
Chemistry, Multidisciplinary
Rongchao Shi, Xiao Han, Jialiang Xu, Xian-He Bu
Summary: Crystalline porous materials have been extensively explored for various applications in nonlinear optics, due to their structural diversity and flexibility in organizing dipolar chromophores. Recent advances in the field have focused on second-order NLO in chiral and achiral structures, as well as third-order NLO in pure organic and hybrid organic/inorganic materials. The future challenges and research directions of these materials have also been proposed.
Article
Chemistry, Multidisciplinary
Noemi Contreras-Pereda, David Rodriguez-San-Miguel, Carlos Franco, Semih Sevim, Joao Pedro Vale, Eduardo Solano, Wye-Khay Fong, Alessandra Del Giudice, Luciano Galantini, Raphael Pfattner, Salvador Pane, Tiago Sotto Mayor, Daniel Ruiz-Molina, Josep Puigmarti-Luis
Summary: This study demonstrates a method to simulate space-like experimentation conditions on Earth using custom-made microfluidic devices for the fabrication of 2D porous crystalline molecular frameworks. The research confirms the unprecedented effects of experimentation under simulated microgravity conditions on the orientation, compactness, and crack-free generation of 2D porous crystalline molecular frameworks, as well as their integration and crystal morphogenesis, providing a new research playground for chemists, physicists, and materials scientists.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Kyle J. Korman, Michael R. Dworzak, Glenn P. A. Yap, Eric D. Bloch
Summary: This paper describes the preparation of a new class of reactive porous solids through straightforward salt metathesis reactions. A porous solid is obtained by reacting the dimethylammonium salt of a magnesium-based porous coordination cage with the chloride salt of [(CrCl)-Cl-II(Me(4)cyclam)](+), with simultaneous removal of dimethylammonium chloride. The porous salt exhibits a Brunauer-Emmett-Teller (BET) surface area of 213 m(2) g(-1) and the chromium(II) cations in the structure are still accessible and reactive, as confirmed by UV-vis spectroscopy. The site-isolated reactive centers show enhanced stability and reactivity compared to dissolved ions.
Review
Chemistry, Inorganic & Nuclear
Xiao Feng, Yanwei Ren, Huanfeng Jiang
Summary: The article reviews the recent research progress of M(bpy)/M(phen)-functionalized metal-organic frameworks (MOFs) and covalent organic frameworks (COFs), focusing on the synthetic strategies of these porous materials and their catalytic performances in thermocatalysis, photocatalysis and electrocatalysis.
COORDINATION CHEMISTRY REVIEWS
(2021)
Review
Chemistry, Multidisciplinary
Ziman Chen, Xinle Li, Chongqing Yang, Kaipeng Cheng, Tianwei Tan, Yongqin Lv, Yi Liu
Summary: MOFs and COFs are two frontier crystalline porous framework materials, each with its own advantages and shortcomings for specific applications. However, combining the complementary properties of the two materials allows for the creation of new classes of hybrid porous crystalline materials with superior properties. The rapid evolution of MOF/COF hybrids since their first report in 2016 has led to diverse applications in various fields.
Review
Chemistry, Multidisciplinary
Wen-Gang Cui, Tong-Liang Hu
Summary: The design and development of efficient catalytic materials with synergistic catalytic sites, such as crystalline porous materials (CPMs), have been a focus of recent research due to their essential role in enhancing catalytic activity and selectivity. By incorporating guest species in CPMs, synergistic effects can be achieved between different components, leading to improved performance in catalytic processes.
Review
Chemistry, Multidisciplinary
Rakesh Kumar Rajaboina, Uday Kumar Khanapuram, Venkateswaran Vivekananthan, Gaurav Khandelwal, Supraja Potu, Anjaly Babu, Navaneeth Madathil, Mahesh Velpula, Prakash Kodali
Summary: Nanogenerators (NGs) are a potential technology for self-powered systems and portable electronics in the Internet of Things generation. They convert mechanical motion into electrical signals and have evolved since their discovery in 2006 and 2012. Crystalline porous materials (CPMs) such as metal-organic frameworks (MOFs) and covalent organic frameworks (COFs) have been widely studied as efficient material options for NGs due to their special properties.
Review
Materials Science, Multidisciplinary
Chongxiong Duan, Kuan Liang, Jiahui Lin, Jingjing Li, Libo Li, Le Kang, Yi Yu, Hongxia Xi
Summary: H-MOFs, as a popular class of crystalline porous materials with hierarchical porous structures, have been widely studied in heterogeneous catalysis. They exhibit excellent catalytic activity, selectivity, stability, and recyclability, showing great potential for future research and applications.
SCIENCE CHINA-MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Ke Li, Jian Yang, Jinlou Gu
Summary: The past few decades have seen a rapid development in the research of metal-organic frameworks (MOFs). Although most initially reported MOFs were limited to microporous structures, their intrinsic pore size has been enlarged by extending the building units or organic ligands. However, the synthesis of larger ligands is challenging and most MOFs are not stable enough. The soft-template strategy offers a promising approach to produce hierarchically porous MOFs (HPMOFs), but early attempts failed due to incompatibility. Therefore, developing a rational soft-template strategy for precise control of HPMOFs' morphology and porosity is of great significance.
ACCOUNTS OF CHEMICAL RESEARCH
(2022)
Review
Chemistry, Multidisciplinary
Hao Zhang, Lan-Lan Lou, Kai Yu, Shuangxi Liu
Summary: Asymmetric catalysis is essential due to the increasing demand for optically pure substances. Metal-organic frameworks (MOFs) and covalent organic frameworks (COFs) show great potential for heterogeneous asymmetric catalysis. The unique properties of MOFs and COFs make them highly active and enantioselective for a wide range of asymmetric catalytic organic transformations.
Article
Chemistry, Multidisciplinary
Qianqian Yan, Shanshan Tao, Ruoyang Liu, Yongfeng Zhi, Donglin Jiang
Summary: Helicenes are fascinating chiral helical molecules with rich chemistry. Although research on synthesizing helicenes with increased numbers of aromatic rings and complex heterostructures has been conducted over the past century, the study of inorganic, organic, and polymeric helicene materials is still in its early stages.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Environmental Sciences
Yan Huang, Xiaoqian Hao, Shuanglong Ma, Rui Wang, Yazhou Wang
Summary: This review comprehensively discusses the recent progress of covalent organic frameworks (COFs) in gas purification, especially in the capture, catalysis, and detection of common harmful gases. The design strategies of COF functional materials and the challenges and future research directions in this field are also summarized.
Review
Chemistry, Physical
Huanhuan Zhang, Cheng Gu, Ming-Shui Yao, Susumu Kitagawa
Summary: Metal-organic frameworks (MOFs) and covalent organic frameworks (COFs) are crucial components in crystalline porous materials, offering vast structural diversity and adjustability. By hybridizing MOFs or COFs with other materials, issues like poor conductivity and weak mechanical properties can be effectively addressed. Various hybridization techniques at different scales have been developed for the preparation of MOF and COF hybrids, with representative applications in electrochemical energy storage devices. The basic principles and mechanisms guiding hybridization have also been elucidated.
ADVANCED ENERGY MATERIALS
(2022)
Review
Polymer Science
Jun-Feng Feng, Min Tan, Sheng Zhang, Bang-Jing Li
Summary: Porous materials have been increasingly used in various fields, with cyclodextrins being suitable building units due to their nanoporous structure, ease of modification, and biocompatibility. This review focuses on the recent progress in the fabrication and applications of CD-based porous materials, including CD-MOFs, CD-COFs, and hybrid porous materials.
MACROMOLECULAR RAPID COMMUNICATIONS
(2021)
Article
Nanoscience & Nanotechnology
Yuting Yang, Yuzhuo Zhang, Tienan Wang, Xiaofei Jing, Yunling Liu
Summary: In this study, porous aromatic frameworks (PAFs) with diphosphine units were synthesized as efficient support materials for gold nanoparticles (AuNPs). These PAFs possess high surface areas and stability, allowing for scattered and accessible sites for gold coordination. The resulting Au-PAFs exhibited excellent catalytic activities in the reduction of 4-nitrophenol (4-NP) and other nitroaromatic derivatives. Furthermore, a continuous catalytic device with Au-PAF-160 catalyst was explored, demonstrating the potential applications of these materials in heterogeneous catalysis.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Yanru Wang, Chao Zhang, Xiuyi Wang, Jinqiu Guo, Zhong-Ming Sun, Hongbo Zhang
Article
Nanoscience & Nanotechnology
Wen-Gang Cui, Yan-Ting Li, Lei Yu, Hongbo Zhang, Tong-Liang Hu
Summary: The study reports a core-shell structured catalyst to enhance the efficiency and stability of CO2 selective hydrogenation to methanol.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Jinqiu Guo, Zongjing Feng, Jun Xu, Jie Zhu, Guanghui Zhang, Yaping Du, Hongbo Zhang, Chunhua Yan
Summary: This study demonstrates the high efficiency of a novel Ce(OH)SO4•xH2O catalyst for the selective upgrading of ethanol transformation, especially for high weight molecules. Combining kinetic, thermodynamic, and in situ spectroscopy measurements provided insights into the key reaction intermediates and mechanisms during the catalysis, as well as the active species and their mechanisms of action.
Article
Chemistry, Physical
Yanru Wang, Jiamin Ma, Xiuyi Wang, Zheshan Zhang, Jiahan Zhao, Jie Yan, Yaping Du, Hongbo Zhang, Ding Ma
Summary: Research indicates the possible difference in CO oxidation reaction mechanism, a catalyst with a combination of platinum atoms and nanoparticles was designed, showing that CO oxidation and water-gas shift (WGS) reactions follow different reaction mechanisms.
Article
Chemistry, Multidisciplinary
Jin Yuan, Jinqiu Guo, Zhiwei He, Leisheng Che, Shanshan Chen, Hongbo Zhang
Summary: The interaction between light and thermal energy in photo-thermal catalysis is still unclear. This study investigates the reaction mechanism of HCOOH decomposition under both thermal and photo-thermal energy using pressure dependency studies and H/D exchange experiments. The results show that the reaction follows the same mechanism under both conditions, but the presence of light-induced hot electrons enhances the reaction activity.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Physical
Zhongyao Zhang, Claudia E. Berdugo-Diaz, Daniel T. Bregante, Hongbo Zhang, David W. Flaherty
Summary: This study investigates the mechanisms of aldol condensation and esterification reactions on transition-metal catalysts and the effects of silanol groups. The results indicate that these reactions occur on unoccupied Ti sites and involve multiple kinetically relevant steps. Additionally, the study finds that silanol groups have a significant impact on catalytic activity, with higher silanol densities leading to higher rates of aldol condensation and esterification.
Article
Chemistry, Physical
Jinqiu Guo, Mi Peng, Zhimin Jia, Chengyu Li, Hongyang Liu, Hongbo Zhang, Ding Ma
Summary: C-H bond activation is crucial for the upgrading and conversion of alkanes or aromatics into valuable products. However, due to the low polarization ability and high bond energies of C-H bonds, selective C-H bond activation has been inefficient and requires systematic study. This paper establishes a universal kinetic model to investigate the reaction process of cyclohexane dehydrogenation over Pt-decorated nanodiamond@graphene nanocomposites, and reveals different reaction mechanisms and surface intermediates between Pt-n and Pt-p catalysts.
Article
Chemistry, Multidisciplinary
Jin Yuan, Hongbo Zhang
Summary: This Concept article aims to clarify the mechanism of how heat works in synergy with light radiation in photo-thermo catalysis through summarizing the kinetic studies. The challenges in kinetic studies and an outlook for future research are also discussed.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Xiuyi Wang, Didi Li, Zirui Gao, Yong Guo, Hongbo Zhang, Ding Ma
Summary: In this study, a compact cascade reaction model for the activation of methanol and water over Pt/NiAl2O4 was established by spectroscopic, kinetic, and isotopic investigations. Methanol reforming was found to involve methanol dehydrogenation and water-gas shift reaction. The dehydrogenation occurred via C-H bond rupture within methoxyl adsorbed on the interface, while the water-gas shift reaction occurred via O-H bond rupture within OlH adsorbed on the interface. These findings provide insight into the reaction process and active component during catalysis, guiding the design of new catalytic systems.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Lili Lin, Yuzhen Ge, Hongbo Zhang, Meng Wang, Dequan Xiao, Ding Ma
Summary: Heterogeneous catalytic processes are crucial for producing fuels and chemicals in the chemical industry, and the addition of water in the aqueous phase or adsorbed micro water environment can enhance the performance of heterogeneous catalysts and create novel catalytic conversion routes.
Article
Chemistry, Physical
Jingjing Dai, Kaipeng Li, Zongjing Feng, Jun Xu, Yao Chen, Hongbo Zhang, Zhenjie Zhang
JOURNAL OF PHYSICAL CHEMISTRY C
(2020)
