Article
Chemistry, Inorganic & Nuclear
Biing-Chiau Tzeng, Chi-Chung Liao, Peng-Yuan Jung, Si-Ying Chen, Bing-Jian Sun, Wei-Chung Cheng, Agnes H. H. Chang, Gene-Hsiang Lee
Summary: The Pt(II) complexes with strong stacking tendency in the solid state and rich luminescence are potential candidates for new mechanochromic materials and sensing applications. Six mononuclear complexes and one dinuclear complex were synthesized and their structures were characterized by X-ray diffraction. Different intermolecular Pt(II) contacts and luminescent properties were observed for these complexes.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Biing-Chiau Tzeng, Chung-Lun Wu, Jun-Wei Hung, Su-Ying Chien, Gene-Hsiang Lee
Summary: The reaction of potassium (aza-15-crown-5)dithiocarbamate with Au, Ag, and Cu metals was studied, resulting in different coordination systems, and the size of alkaline metal ions has a significant impact on the structures.
DALTON TRANSACTIONS
(2022)
Article
Multidisciplinary Sciences
Samuel J. Warnock, Rahul Sujanani, Everett S. Zofchak, Shou Zhao, Theodore J. Dilenschneider, Kalin G. Hanson, Sanjoy Mukherjee, Venkat Ganesan, Benny D. Freeman, Mahdi M. Abu-Omar, Christopher M. Bates
Summary: This research successfully enhanced the selectivity of polymer membranes for LiCl over NaCl by incorporating 12-crown-4 ligands into a tunable polymer network. Insights into the mechanism of this selectivity were revealed through molecular dynamics simulations.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Chemistry, Multidisciplinary
Qin Wang, Meng Yao, Aipeng Zhu, Qian Wang, Hao Wu, Yun Zhang
Summary: A simple surface modification method is designed to solve the performance degradation and structural collapse issues of Li-rich layered oxides (LRLOs). The modified material (LRLO@LMO@LNO) exhibits an ultra-high discharge capacity and very small voltage attenuation, even at high current densities.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Inorganic & Nuclear
Liang Su-Zhuo-Cheng, Ji Guo-Xun, Sun Xin-Li, Li Guo-Dong, Zhang Shi-Tong
Summary: This study investigates the effect of silicon doping on the coordination ability of 15-crown-5 with Li+ using density functional theory calculations. It demonstrates that silicon doping can enhance ion-dipole interactions between crown ethers and Li+ by improving the electrostatic and induction interactions. However, introducing Si-O-Si structures may impede the coordination of crown ethers with Li+ by preventing full electron polarization.
CHINESE JOURNAL OF INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Pranay Ninawe, Kriti Gupta, Nirmalya Ballav
Summary: This study integrated Cu-based 2D MOF with rGO and found that chemical interaction can significantly modify physical properties, including a conversion of crystal solid type and an increasing trend in thermoelectric power factor.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Dilawar Singh Sisodiya, Sk. Musharaf Ali, Anjan Chattopadhyay
Summary: Computational studies were conducted on the trans & RARR; cis and cis & RARR; trans isomerizations of photoresponsive azobis(benzo-15-crown-5). The photoexcited & pi; & pi;* state(S-2) of the trans isomer relaxes through the planar S-2 minimum and the planar S-2/S-1 conical intersection, both situated below the vertically excited S-2 state. The n & pi;* state (S-1) of this isomer has both planar and rotated minima, which may lead to a torsional conical intersection (S-0/S-1) geometry.
JOURNAL OF PHYSICAL CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Laiqiang Xu, Xuhuan Xiao, Hanyu Tu, Fangjun Zhu, Jing Wang, Huaxin Liu, Weiyuan Huang, Wentao Deng, Hongshuai Hou, Tongchao Liu, Xiaobo Ji, Khalil Amine, Guoqiang Zou
Summary: Research has found that by regulating functional groups in metal-organic frameworks, it is possible to alter the distribution of surface charges, limit the movement of anions, and enhance ionic conductivity, providing a feasible direction for high-performance solid-state batteries.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Laiqiang Xu, Xuhuan Xiao, Hanyu Tu, Fangjun Zhu, Jing Wang, Huaxin Liu, Weiyuan Huang, Wentao Deng, Hongshuai Hou, Tongchao Liu, Xiaobo Ji, Khalil Amine, Guoqiang Zou
Summary: Solid-state batteries can provide high energy density and safety, while polymer electrolytes face challenges due to slow ion kinetics and low selective transport of Li+. Metal-organic frameworks (MOFs) are proposed as fillers for solid-state electrolytes, but developing functionalized MOFs and understanding their role in ion transfer is difficult. This study demonstrates that functional group regulation in MOFs can effectively control charge distribution and limit anion movement, leading to improved performance in composite electrolytes for high-performance solid-state batteries.
ADVANCED MATERIALS
(2023)
Article
Engineering, Chemical
Lan Li, Mingna Feng, Mingxia Wang, Zhihao Jiao, Jixue Li, Linfang Dong, Feng Yan
Summary: In this study, a crown ether functionalized polysulfone membrane with selective separation performance for Li+ was successfully prepared, showing promising application prospects for the separation of Li+ from brine. The dense membrane can achieve a separation factor of 32.6 for Mg2+ to Li+, indicating high selectivity for Li+ separation.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2021)
Review
Nanoscience & Nanotechnology
Xinhang Cui, Yani Luo, Yin Zhou, Wenhao Dong, Wei Chen
Summary: Graphene, as a catalyst in Li-O-2 batteries, requires various surface functionalization schemes to enhance the kinetics of oxygen reduction and oxygen evolution reactions. Functionalized graphene can also prevent shuttle effect of redox mediators and suppress Li dendrite growth in battery systems.
Article
Electrochemistry
Tomasz Kedzierski, Karolina Wenelska, Damian Beben, Beata Zielinska, Ewa Mijowska
Summary: In this study, thin films based on ultrafast self-expanded reduced graphene oxide (ERGO) and exfoliated molybdenum disulfide (ex-MoS2) were prepared via vacuum-assisted filtration and tested as anodes in Li-ion half-cells. The film with a GO to ex-MoS2 ratio of 1:1 showed the highest specific capacity and stability. The proposed Li-ion half-cells are free of any non-active materials, reducing the cost of the energy storage device.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Multidisciplinary
Guorui Cai, Amanda A. Chen, Sharon Lin, Dong Ju Lee, Kunpeng Yu, John Holoubek, Yijie Yin, Anthony U. Mu, Ying Shirley Meng, Ping Liu, Seth M. Cohen, Tod A. Pascal, Zheng Chen
Summary: In this study, metal-organic frameworks (MOFs) and aprotic electrolytes are investigated as a robust platform to gain molecular-level insights into electrolyte behaviors in confined spaces. By studying solvents and solvation structures confined within functionalized MOFs, phenomena deviating from the bulk electrolyte are demonstrated, including modulated solvent molecular configurations, aggregated solvation structures, and tunable transport mechanisms. The confinement effects can be utilized to address stability concerns of volatile organic electrolytes and enable ultrafast solvate transport, leading to improved battery performance, even at extreme temperatures. The molecular-level insights presented here contribute to our understanding of structure-property relationships of complex fluids at the nanoscale, which can be exploited for the predictive design of more efficient electrochemical systems.
Article
Chemistry, Physical
Shingo Ohta, Hiroshi Nozaki, Liang Wang, Hongfei Jia, Nikhilendra Singh, Timothy Arthur, Daniel Hashemi, Hideo Iizuka
Summary: Inorganic solid ion conductors are important electrolytes for high-performance lithium-ion batteries and fuel cells. Previously developed inorganic ion conductors from natural minerals have low conductivity due to strong bonding between mobile ions and anions. In this study, a two-dimensional van der Waals inorganic proton conductor with higher conductivity by inserting protons into halogen vdW layers is presented. This provides a new pathway for the development of high-performance LIBs and FCs.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Zeyu Li, Feng Liu, Shaoshan Chen, Fei Zhai, Yu Li, Yiyu Feng, Wei Feng
Summary: A novel Li+ conductor based on carbon quantum dots was successfully fabricated in this study, showing high ionic conductivity and excellent stability in Li-metal batteries, as well as the ability to withstand various deformations.
