Article
Chemistry, Multidisciplinary
Yi Liu, Mingrun Li, Zhigang Chen, Yi Cui, Jinming Lu, Yi Liu
Summary: Introducing hierarchy enables concurrent thickness reduction and orientation control of zeolite membranes, leading to enhanced performance. Hollow-structured MFI nanoseeds and single-mode microwave heating are crucial for preparing superior butane isomer separation performance of MFI zeolite membranes.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Engineering, Chemical
Wenwen Zhang, Zhigang Xue, Liyun Cui, Haoliang Gao, Di Zhao, Rongfei Zhou, Weihong Xing
Summary: A continuous IMF zeolite membrane was successfully synthesized on tubular substrates using seeded growth method. The IMF zeolite with straight channels of 0.53-0.59 nm in diameter exhibited distinct selectivity for p-xylene over o-xylene molecules. High-quality IMF-phase IM-5 zeolite seeds were fabricated using a sonication-assisted aging process, which were then coated on the support to induce the formation of a continuous membrane. The IM-5 zeolite membrane showed a p-/o-xylene separation factor of 3.7, suggesting its potential as a membrane material for xylene mixture separation.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Physics, Multidisciplinary
S. Guo, B. Ding, X. H. Zhou, Y. B. Wu, J. G. Wang, S. W. Xu, Y. D. Fang, C. M. Petrache, E. A. Lawrie, Y. H. Qiang, Y. Y. Yang, H. J. Ong, J. B. Ma, J. L. Chen, F. Fang, Y. H. Yu, B. F. Lv, F. F. Zeng, Q. B. Zeng, H. Huang, Z. H. Jia, C. X. Jia, W. Liang, Y. Li, N. W. Huang, L. J. Liu, Y. Zheng, W. Q. Zhang, A. Rohilla, Z. Bai, S. L. Jin, K. Wang, F. F. Duan, G. Yang, J. H. Li, J. H. Xu, G. S. Li, M. L. Liu, Z. Liu, Z. G. Gan, M. Wang, Y. H. Zhang
Summary: The research reported on the isomer depletion of Mo-93m, which is the first direct observation of nuclear excitation by electron capture, but the observed results are inconsistent with theoretical expectations. The experimental results raise doubts about the previously reported NEEC phenomenon and highlight the need for further experimental research.
PHYSICAL REVIEW LETTERS
(2022)
Article
Chemistry, Physical
Ruihan Yang, Xiao Chen, Junxiang Ma, Yuan Gao, Yujun Wang, Guangsheng Luo
Summary: This study investigates the adsorption behavior and selective adsorption mechanism of α-olefins using a combination of experimental and simulation methods. The results provide direct evidence of preferential adsorption of C-6 α-olefins at the edges of zeolite cavities. The presence of calcium cations enhances the selectivity of zeolites for α-olefin/paraffin adsorption. This work offers a means to study the behavior of guest molecules in nanoporous materials.
Article
Chemistry, Physical
Tingting Pan, Xinglong Dong, Yu Han
Summary: Hydrophobic zeolites are suitable adsorbents for capturing radioactive iodine species. This study demonstrates that the composition and pore structure of zeolites significantly affect their iodine adsorption performance. A novel all-silica ExxonMobil material-17 (EMM-17) zeolite exhibits high adsorption capacity for iodine and methyl iodide in the presence of water. EMM-17 outperforms previously reported zeolites in terms of adsorption capacity.
Article
Nanoscience & Nanotechnology
Jiyang Wu, Haolin Wu, Bin Wang, Rongfei Zhou, Weihong Xing
Summary: This study presents the scalable fabrication of high-performance zeolite MFI membranes by single-step secondary growth on alumina monoliths. The monolithic membranes show higher packing density and mechanical strength compared to tubular ones. The separation performance of the monolithic membranes in butane isomer mixtures was evaluated and shows great potential.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Multidisciplinary Sciences
Ruobing Bai, Xiaowei Song, Wenfu Yan, Jihong Yu
Summary: Zeolite sorbents are a promising low-energy alternative that can achieve separation of mixtures through adsorptive separation technology, and their performance is directly determined by the zeolite sorbents. This article summarizes the research progress of zeolite sorbents in CO2, light olefins, C-8 aromatics, and hydrogen isotopes adsorptive separations.
NATIONAL SCIENCE REVIEW
(2022)
Article
Engineering, Environmental
Yixuan Yu, Xianhai Li, Xiubo Min, Mingyang Shang, Ping Tao, Tianjun Sun
Summary: This study focuses on the effects of channel morphology and Bronsted acidity on noble gas separation using three different zeolites. ZSM-5 has been found to have better selectivity for separating Xe and Kr, making it an efficient method for capturing Xe from used radioactive gas and cryogenic air.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Yuezhou Liu, Hongliang Wang, Liqing Shangguan, Peiren Liu, Bingbing Shi, Xin Hong, Feihe Huang
Summary: A light-responsive water-soluble azobenzene-based macrocycle was synthesized and successfully employed in separating PHE from anthracene via a solid-liquid extraction method at ambient conditions. After five extraction cycles, the average purity for PHE reached about 91.1% and the macrocycle could be reused at least five times without significant reduction in separation performance. This work not only provides a new and clean way to separate PHE, but also advances the application of host-guest chemistry.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Hae Sol Lee, Nam Sun Kim, Dong-il Kwon, Su-Kyung Lee, Muhammad Numan, Taesung Jung, Kanghee Cho, Michal Mazur, Hae Sung Cho, Changbum Jo
Summary: Organic functionalization of zeolites can adjust their effective pore diameters, allowing for challenging separations. Post-functionalized zeolites demonstrate ideal selectivity in separating light olefins and paraffins.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Manfredi Caruso, Massimo Cametti, Kari Rissanen, Javier Marti-Rujas
Summary: The trapping of volatile unbranched C-6 hydrocarbons (hexane, 1-hexene, and 1-hexyne) in a 1D coordination polymer is reported. The guest inclusion was quantitatively studied by H-1-NMR analysis and thermogravimetric measurements, while synchrotron single-crystal diffraction data allowed a better understanding of their confinement into linear CP channels. Adsorption experiments on microcrystals of CP 1 showed a certain degree of selectivity for 1-hexyne, potentially due to its larger dipole moment.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Andres Sala, Eduardo Perez-Botella, Jose L. Jorda, Angel Cantin, Fernando Rey, Susana Valencia
Summary: The study introduces a newly synthesized zeolite named ITQ-69 and evaluates its application as a selective adsorbent for light olefins/paraffins separations. Results show promising kinetic selectivity for light olefin separations in the C3 fraction.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Hao Zhang, Aleksei Bolshakov, Raghavendra Meena, Gustavo A. Garcia, A. Iulian Dugulan, Alexander Parastaev, Guanna Li, Emiel J. M. Hensen, Nikolay Kosinov
Summary: Non-oxidative coupling of methane enables the direct production of ethylene from natural gas. By using siliceous [Fe]zeolites with MFI and CHA topologies, high selectivity to ethylene and ethane (>90% for MFI and >99% for CHA) was achieved. Deactivated [Fe]zeolites can be regenerated by burning coke in air. In situ X-ray absorption spectroscopy and photoelectron photoion coincidence spectroscopy were employed to investigate the reaction mechanism, revealing the formation of methyl radicals as intermediates and proposing a reaction network leading to polyaromatic species over [Fe]MFI.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Chemistry, Multidisciplinary
Ru-Shuai Liu, Xiao-Dong Shi, Cheng-Tong Wang, Yu-Zhou Gao, Shuang Xu, Guang-Ping Hao, Shaoyun Chen, An-Hui Lu
Summary: With the atmospheric CO2 concentration rapidly increasing to record levels, there is a growing need for advanced CO2 capture technologies. Physical adsorption-based separation technologies offer easy regeneration, high cycle stability, and potentially lower energy penalties and costs. Extensive research has been conducted ranging from novel porous adsorbents to practical separation practices, with a focus on intrinsic properties and industrial relevant variables to enhance CO2 capture.
Article
Chemistry, Applied
Eduardo Perez-Botella, Benjamin Claessens, Susana Valencia, Fernando Rey, Joeri F. M. Denayer
Summary: The adsorptive vapour phase separation of 1-butanol from a synthetic ABE mixture using pure silica zeolites with different pore structure and topology showed that Si-STT zeolite has remarkable selectivity towards 1-butanol, unaffected by the presence of water or CO2, and is an excellent and robust adsorbent for achieving high purity and recovery rates in conditions close to ABE fermenter headspace.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Yi-Ming Gu, You-You Yuan, Cai-Lin Chen, Sheng-Sheng Zhao, Tian-Jun Sun, Yu Han, Xiao-Wei Liu, Zhiping Lai, Shu-Dong Wang
Summary: We report a unique fluorine-bridged Fe-MOF, assembled by mixed-valence (FeFeIII)-Fe-II clusters and renewable organic ligands. The structure provides superior C2H2-favored adsorption sites facilitated by hydrogen bonding, with a lower C2H2 adsorption enthalpy than other reported HBA-MOFs. Importantly, this MOF shows exceptional hydrochemical stability and maintains its intriguing performance for C2H2/CO2 separation even under high humidity conditions.
Article
Chemistry, Multidisciplinary
Huijun Song, Xiaoqiu Xu, Jingjing Chen, Yinling Zhang, Jia Zhao, Chongzhi Zhu, Hong Zhang, Yong Peng, Qiaoli Chen, Guan Sheng, Tulai Sun, Yu Han, Xiaonian Li, Yihan Zhu
Summary: Integrating high-valence metal sites into transition metal-based oxygen evolution reaction (OER) catalysts has been a prevailing solution to replace noble metal-based electrocatalysts. However, stabilizing the thermodynamically unfavorable high-valence metal sites within the electrocatalyst remains a challenge. To address this issue, a general strategy is proposed that involves cooperative geometric and electronic interactions at nanometer coherent interfaces, resulting in stabilized interfacial high-valence metal sites within homogeneously distributed heterostructures and enhanced electrocatalytic activity.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ling Sun, Ziqing Zhang, Ji Bian, Fuquan Bai, Hengwei Su, Zhijun Li, Jijia Xie, Rongping Xu, Jianhui Sun, Linlu Bai, Cailing Chen, Yu Han, Junwang Tang, Liqiang Jing
Summary: This study presents the construction of a BiVO4/g-C3N4 Z-scheme heterojunction for solar-driven CO2 reduction. The dual reaction sites of CoOx clusters and imidazolium ionic liquids enable efficient charge transfer and catalytic performance for CO2 photoreduction. This work provides insights for the rational design of Z-scheme heterojunctions for solar fuel production.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Biao Huang, Yiyao Ge, An Zhang, Shangqian Zhu, Bo Chen, Guanxing Li, Qinbai Yun, Zhiqi Huang, Zhenyu Shi, Xichen Zhou, Lujiang Li, Xixi Wang, Gang Wang, Zhiqiang Guan, Li Zhai, Qinxin Luo, Zijian Li, Shiyao Lu, Ye Chen, Chun-Sing Lee, Yu Han, Minhua Shao, Hua Zhang
Summary: A seeded method is developed to synthesize hollow PdSn intermetallic nanoparticles (NPs) with two different intermetallic phases, orthorhombic Pd2Sn and monoclinic Pd3Sn2. The obtained hollow orthorhombic Pd2Sn NPs exhibit excellent electrocatalytic performance towards glycerol oxidation reaction, surpassing solid orthorhombic Pd2Sn NPs, hollow monoclinic Pd3Sn2 NPs, and commercial Pd/C. The reaction mechanism using the hollow orthorhombic Pd2Sn catalyst is investigated, revealing its higher efficiency in cleaving the C-C bond compared to commercial Pd/C.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Shulin Chen, Jiayi Wang, Simil Thomas, Wasim J. J. Mir, Bingyao Shao, Jianxun Lu, Qingxiao Wang, Peng Gao, Omar F. F. Mohammed, Yu Han, Osman M. M. Bakr
Summary: Inorganic halide perovskite nanocrystals (NCs) are extensively studied as next-generation optoelectronic materials. The atomic structure at the surface of CsPbBr3 NCs is directly observed, revealing a Cs-Br terminated surface with a significantly decreased Cs-Cs bond length, inducing compressive strain and polarization. Density functional theory calculations suggest that this reconstructed surface contributes to the separation of holes and electrons. These findings enhance our understanding of the surface structure and provide insights for designing stable and efficient optoelectronic devices.
Article
Chemistry, Physical
Tingting Pan, Xinglong Dong, Yu Han
Summary: Hydrophobic zeolites are suitable adsorbents for capturing radioactive iodine species. This study demonstrates that the composition and pore structure of zeolites significantly affect their iodine adsorption performance. A novel all-silica ExxonMobil material-17 (EMM-17) zeolite exhibits high adsorption capacity for iodine and methyl iodide in the presence of water. EMM-17 outperforms previously reported zeolites in terms of adsorption capacity.
Article
Chemistry, Physical
Guozhen Liu, Yanan Guo, Cailing Chen, Yong Lu, Guining Chen, Gongping Liu, Yu Han, Wanqin Jin, Nanping Xu
Summary: A high-probability theoretical coordination strategy is proposed and demonstrated to eliminate lattice defects in metal-organic framework (MOF) membranes. This strategy increases the ratio of ligands to metal clusters, enabling the creation of high-connectivity MOF membranes with angstrom-sized lattice apertures. The resulting membranes exhibit high and stable separation performance for gases, water desalination, and an organic solvent azeotrope.
Editorial Material
Chemistry, Multidisciplinary
Wai Li Ling, Yuki Kimura, Yu Han, Yanbin Li
FRONTIERS IN CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Yu Han, Yinlin Chen, Yujie Ma, Jamie Bailey, Zi Wang, Daniel Lee, Alena M. Sheveleva, Floriana Tuna, Eric J. L. McInnes, Mark D. Frogley, Sarah J. Day, Stephen P. Thompson, Ben F. Spencer, Marek Nikiel, Pascal Manuel, Danielle Crawshaw, Martin Schroder, Sihai Yang
Summary: This paper reports the high adsorption of benzene at low pressure and efficient separation of benzene/cyclohexane achieved by controlling the pore chemistry of two families of robust metal-organic frameworks, UiO-66 and MFM-300. UiO-66-CuII exhibits exceptional adsorption of benzene at 3.92 mmol g-1 and MFM-300(Sc) shows a high selectivity of 166 for the separation of benzene/cyclohexane (v/v = 1/1) mixture. The binding mechanisms of benzene and cyclohexane in these materials are revealed through in situ synchrotron X-ray diffraction, neutron powder diffraction, and multiple spectroscopic techniques. Reversible binding of benzene at an open Cu(II) site within metal-organic frameworks is also visualized for the first time.
Article
Engineering, Environmental
Feng Shui, Qiong Lei, Xinglong Dong, Tingting Pan, Zhiyuan Zhang, Jinli Li, Mao Yi, Laiyu Zhang, Xiongli Liu, Zifeng You, Shiqi Yang, Rufeng Yang, Hongbo Zhang, Jixin Li, Zhan Shi, Jun Yin, Baiyan Li, Xian-He Bu
Summary: By manipulating two types of adsorption sites, ionic binding sites and Lewis binding sites, a highly efficient I2 nanotrap was constructed, demonstrating a record-high iodine uptake capacity for COFs. This work opens up new possibilities for the rational design of COF materials for efficient iodine capture and related applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Chemistry, Multidisciplinary
Yikuan Liu, Xiaona Liu, An Su, Chengtao Gong, Shenwei Chen, Liwei Xia, Chengwei Zhang, Xiaohuan Tao, Yue Li, Yonghe Li, Tulai Sun, Mengru Bu, Wei Shao, Jia Zhao, Xiaonian Li, Yongwu Peng, Peng Guo, Yu Han, Yihan Zhu
Summary: Covalent organic frameworks are crystalline porous materials with designable structures and functions, which can acquire multifunctionalities and have versatile applications in gas separation/storage, catalysis, and optoelectronic devices.
CHEMICAL SOCIETY REVIEWS
(2024)
Article
Chemistry, Multidisciplinary
Zhaohui Liu, Guanxing Li, Mohammed R. Alalouni, Ziyin Chen, Xinglong Dong, Jianjian Wang, Cailing Chen
Summary: A Ni-imidazole compound was synthesized by a simple one-step co-precipitation method, which exhibited superb catalytic activity for ethylene dimerization reactions.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Lei Zhou, Liangliang Liang, Jiaye Chen, Xin Zhou, Lingmei Liu, Shibo Xi, Kian Ping Loh, Yu Han, Qian He, Xiaogang Liu
Summary: Precise control of exciton confinement is crucial for the development of high-performance, stable optoelectronic devices in metal halide perovskites. This study demonstrated the modulation of reaction rate and crystal facet-dependent preference for perovskite growth by introducing steric hindrances in the Cs+ sublattice of CsYb2F7. The resulting perovskite nanostructures showed enhanced stability and the simultaneous occurrence of multiple emission bands.
Article
Chemistry, Multidisciplinary
Qingpeng Cheng, Xueli Yao, Lifeng Ou, Zhenpeng Hu, Lirong Zheng, Guanxing Li, Natalia Morlanes, Jose Luis Cerrillo, Pedro Castano, Xingang Li, Jorge Gascon, Yu Han
Summary: Researchers achieved high incorporation of nickel (Ni) catalysts into the framework of ZSM-5 zeolite using a ligand-protected synthesis method. The incorporated Ni species formed metal-oxygen pairs, promoting the dissociation of C-H bonds in methane. The catalyst exhibited higher activity and stability, inhibiting coke formation through the CHx oxidation pathway.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Proceedings Paper
Automation & Control Systems
Liangliang Wei, Dongqing Liu
Summary: This paper proposes a partitioned stator DC-biased hybrid excited permanent magnet machine and establishes a cooperative control strategy based on maximum torque per ampere (MTPA) which is verified through simulation and comparison studies.
2023 IEEE INTERNATIONAL ELECTRIC MACHINES & DRIVES CONFERENCE, IEMDC
(2023)
