Article
Chemistry, Applied
Denis P. Pishchur, Nikolay B. Kompankov, Svetlana G. Kozlova
Summary: This paper analyzes the temperature behavior of the heat capacity of isostructural compounds M-2(bdc)(2)(dabco) (M = Co, Ni, Cu, Zn). It is found that all the samples undergo phase transitions at 12K and 60K. The phase transition observed in the Zn complex at-130K is not manifested in M-2(bdc)(2)(dabco) (M = Co, Ni, Cu) due to the spin-phonon interaction between paramagnetic M2+ ions and the mobility of frameworks of these compounds.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Chih-Chieh Wang, Geng-Min Lin, Cheng-Han Lin, Tsai-Wen Chang, Szu-Yu Ke, Chuan-Yien Liu, Gene-Hsiang Lee, Bo-Hao Chen, Yu-Chun Chuang
Summary: Two ligand ratio-dependent supramolecular networks have been synthesized and characterized. The structures of these compounds reveal their layered and chain-like structures, which are further constructed into 3D supramolecular networks through strong intermolecular interactions. The water vapor hysteresis and solid-state structural transformations of the compounds have been demonstrated.
Article
Chemistry, Multidisciplinary
Abhishek Nayak, Shanon Viegas, Harshini Dasari, Nethaji Sundarabal
Summary: In this study, Cu-BDC and Cu-BDC derived metal oxide were used for the removal and oxidation of asphaltenes. The results showed that Cu-BDC had a higher adsorption capacity than Cu2O, while Cu2O was more successful at catalyzing the oxidation reaction.
Article
Energy & Fuels
Bo Xiong, Yingju Yang, Jing Liu, Junyan Ding, Yuchen Yang
Summary: A density functional theory study was conducted on Cu-M (M = Cd, Zn, Ni, Ag, and Pd) bimetal catalysts for CO2RR and HER, revealing that the Cu-Pd catalyst exhibited outstanding catalytic activity for both HER and CO2RR. The Cu-Cd catalyst at a low Cu/Cd ratio was found to be more favorable for CO2RR than HER. This study provides guidance for designing effective electrocatalysts for CO2RR and HER using Cu-based bimetal materials.
Article
Chemistry, Analytical
Xiaoli Qin, Birui Wang, Xiangyu Li, Yanbin Ding, Xiaolan Yang, Yuqing Zhou, Wenjing Xu, Mingyang Xu, Chaoyue Gu
Summary: In this paper, a simple one-step synthesis strategy for fabricating toluidine blue (TB)-functionalized metal organic frameworks (TB@MOFs) via a self-assembly approach was reported. The TB@MOFs exhibited exceptional electrochemical activity due to the abundant TB molecules encapsulated in the MOFs. The TB@MOFs were successfully used to develop label-free electrochemical immunosensors for the detection of pig immunoglobulin G (IgG), mycobacterium bovis (MB) and foot and mouth disease virus (FMDV) with wide linear ranges and low detection limits.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Huaming Yu, Dongping Chen, Xuyan Ni, Piao Qing, Chunshuang Yan, Weifeng Wei, Jianmin Ma, Xiaobo Ji, Yuejiao Chen, Libao Chen
Summary: In this study, l-carnitine (l-CN) is proposed as an efficient additive to stabilize both electrodes and extend the lifespan of aqueous Zn-ion batteries. The simultaneous presence of quaternary ammonium cations, COO- anions, and hydroxyl groups in a trace amount of added l-CN has a significant impact on the behavior of Zn2+ deposition/insertion and water molecule activity. The addition of l-CN leads to ultralong life in the symmetric cell with an 87-fold improvement in cycle life (over 6000 h, 1 mA cm(-2)/1 mA h cm(-2)) for dendrite-free Zn plating/stripping and enables the Zn//V2O5 full cell to achieve 3500 cycles with a high capacity retention.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Engineering, Chemical
Chen Tan, Zhang-Min Li, Ming-Shuai Sun, Hua Guan, Yan Zhou, Duan-Jian Tao
Summary: Three novel sulfonated phenol-formaldehyde resins were prepared and showed excellent reversibility, stability, and selectivity for NH3 adsorption. These nonporous resins are perceived as promising solid adsorbents for effectively capturing NH3 in the ammonia industry.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Inorganic & Nuclear
Geoffrey Letheux, Parameshwari Ganesan, Fabien Veillon, Julien Varignon, Olivier Perez, Julien Cardin, Christophe Labbe, Guillaume Rogez, Mathilde Ligeour, Paul-Alain Jaffres, Jean-Michel Rueff
Summary: In this study, four new metallophosphonates were synthesized and their structures, magnetic properties, and optical properties were investigated experimentally and theoretically. These compounds have complex molecular structures and layered structures, exhibit dominant antiferromagnetic interactions, and show optical properties influenced by both the ligand and transition metals.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Multidisciplinary
Sofia Zazouli, Nathalie Gruber, Veronique Bulach, Sylvie Ferlay, Abdelaziz Jouaiti
Summary: Five new supramolecular coordination polymers (L-Cu(acac)(2), L-Cu(hfac)(2), L-ZnCl2, L-CdI2 and L-CoCl2) based on the flexible organic ligand L combined with Cu(acac)(2), Cu(hfac)(2), ZnCl2, CdI2 or CoCl2 metallaligands, were synthesized and characterized. They represent the first reported coordination polymers based on this ligand presenting ester junctions, with their structure and packing in the crystal depending on the conformation of the ligand L and the nature of the metallic salts used.
Article
Chemistry, Physical
Yun Guo, Mianying Huang, Hua Zhong, Zhaohui Xu, Quanyi Ye, Jiating Huang, Guozheng Ma, Zhiguang Xu, Akif Zeb, Xiaoming Lin
Summary: Transition metal oxides (TMOs) have been of great interest due to their high theoretical capacity, low cost, and low toxicity. Cobalt-based materials show promise as negative electrode materials for batteries, but they suffer from poor electrical conductivity and large volume changes during operation. Sacrificial templating techniques at the nanoscale have been explored as a potential solution to improve the electrochemical stability and rate performance of these materials. Metal organic frameworks (MOFs) derived MCo2O4-MOF (M = Zn, Ni, Cu) were developed to study the impact of multiple metal ions on the electrochemical capacity. Among these, ZnCo2O4 exhibited the best electrochemical performance and had the lowest Li+ adsorption energy.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Biswajit Mohanty, Gopal Avashthi
Summary: In this study, a high throughput computational approach was used to investigate the adsorption and separation properties of C8-C12 hydrocarbons on a tube-shaped metallo-cavitand, pillarplex (PPX). The results showed that Cu-PPX exhibited a higher binding affinity with the hydrocarbons compared to Ag-PPX. The thermodynamic properties and simulations demonstrated that Cu-PPX and Au-PPX were the ideal hosts for storing hydrocarbons at ambient conditions.
RESULTS IN PHYSICS
(2023)
Article
Chemistry, Physical
Gerson J. Leonel, Cameron B. Lennox, Joseph M. Marrett, Tomislav Friscic, Alexandra Navrotsky
Summary: This study investigates the effect of changes to the divalent metal node on the thermodynamic stability of zeolitic imidazolate frameworks. The use of nodes with larger ionic radius metals stabilizes the porous sodalite topology. Contrary to popular belief, the 2D frameworks are energetically stable, shedding light on the energetic landscape of these materials.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Maria Alaide de Oliveira, Elibe Silva Souza, Jildimara de Jesus Santana, Natalia Lukasik, Barbara Stefany Lima da Silva, Braulio Silva Barros, Joanna Kulesza
Summary: Mono- (Co-BDC, Fe-BDC) and bimetallic FeCo-BDC Metal-Organic Frameworks were synthesized via solvothermal method and utilized as catalysts for sodium borohydride hydrolysis. Among them, Co-BDC exhibited the most promising performance with a hydrogen generation rate of 1886.8 mL min(-1) g(cat)(-1) and high efficiency of 77.7% at 319 K under basic conditions. It also had a lower activation energy of 25.4 kJ mol(-1) compared to most cobalt-bearing catalysts reported in literature. The catalyst showed good reusability for at least ten cycles, making it a potential candidate for portable hydrogen fuel systems.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Jie Wu, Zhenjiang Yu, Yuanyuan Zhang, Siqi Niu, Jianying Zhao, Siwei Li, Ping Xu
Summary: This study investigates the OER performance of Co-based bimetallic MOFs on carbon cloth, comparing different metal combinations. The results show that CoZn MOFs exhibit the best OER performance, attributed to the higher oxidation state of Co and the choice of second metal. Theoretical calculations suggest that tuning the electronic structure of the metal site can be an effective strategy for enhancing OER activity in MOFs.
Article
Chemistry, Physical
Bo Xiong, Yingju Yang, Jing Liu, Junyan Ding, Yuchen Yang
Summary: This study conducted a comparative study of Cu-M bimetal catalysts for CO2RR-to-syngas using DFT calculations, indicating significant effects of crystal orientation on catalyst activity and providing guidance for the design of highly efficient catalysts for CO2RR-to-syngas.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Yong Wang, Tong Li, Libo Li, Rui-Biao Lin, Xiaoxia Jia, Zeyu Chang, Hui-Min Wen, Xiao-Ming Chen, Jinping Li
Summary: A new fluorinated metal-organic framework (FDMOF-2) featuring precise incorporation of fluorinated functional groups into the confined pore space is successfully constructed for the separation of propane/propene. FDMOF-2 shows excellent capture capacity and selectivity, setting new benchmarks for porous materials. The breakthrough experiments demonstrate outstanding propane production with high purity.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Yongheng Ren, Yang Chen, Jiangfeng Yang, Jinping Li, Libo Li
Summary: Silver-loaded silicalite-1 sorbent was synthesized using an in-situ silver modification method, which effectively removes trace C2H4 in high humidity environments. The sorbent exhibits excellent ethylene adsorption capability under low pressures and superior resistance to interference from water vapor and carbon dioxide, thereby extending the shelf life of fruits.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Environmental
Hong An, Yang Chen, Yong Wang, Xiaohua Liu, Yongheng Ren, Ziliang Kang, Jinping Li, Libo Li
Summary: Atmospheric water harvesting using solar-driven desorption systems is an effective solution to water shortage in arid regions. A hygroscopic salt-modified metal-organic framework (CaCl2@MOF-808-11.8) is developed, which exhibits excellent water uptake and improved structural stability and cyclic performance. An outdoor water harvesting experiment using a solar-driven device shows that CaCl2@MOF-808-11.8 can collect 1.8 kg of water per each kilogram of material daily, surpassing most reported water harvesting MOFs.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Shan-Qing Yang, Rajamani Krishna, Hongwei Chen, Libo Li, Lei Zhou, Yi-Feng An, Fei-Yang Zhang, Qiang Zhang, Ying-Hui Zhang, Wei Li, Tong-Liang Hu, Xian-He Bu
Summary: By adjusting the pore environment and embedding polar groups into an ultramicroporous metal-organic framework (MOF), the one-step manufacture of high-purity acetylene from a CO2/acetylene mixture has been achieved.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Applied
Youlie Cai, Hongwei Chen, Puxu Liu, Jiazhen Chen, Hui Xu, Thamraa Alshahrani, Libo Li, Banglin Chen, Junkuo Gao
Summary: Energy-efficient separation technology is crucial for the economic and safety aspects of natural gas refining. This study demonstrates the potential of HOF-16 for highly efficient separation of C2H2/CH4 and CO2/CH4 mixtures. The findings show that HOF-16 exhibits a high C2H2/CH4 separation selectivity and can effectively remove C2H2 from the adsorption bed with low energy consumption.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Engineering, Chemical
Tianhao Lan, Qi Wang, Chunyu Lu, Jianhui Li, Jinlong Li, Yang Chen, Libo Li, Jiangfeng Yang, Jinping Li
Summary: Increasing mass diffusion efficiency is a challenging task in the field of metal-organic frameworks (MOFs). Creating hierarchically porous MOF materials is crucial for improving both mass transfer and molecular accessibility. This paper proposes a facile and versatile strategy, called the MOF-Template strategy, for fabricating hierarchical pores in MOF particles. By utilizing unstable Cu-MOFs as sacrificial agents, tunable mesopores and macropores can be easily introduced in shaped ZIF-8 spheres. This strategy effectively enhances the adsorption kinetics and separation productivity of MOF materials while maintaining high mechanical stability, showing promising prospects for industrial applications.
Article
Chemistry, Multidisciplinary
Yutao Liu, Hui Chen, Tong Li, Yongheng Ren, Hui Wang, Zhengxuan Song, Jianhui Li, Qiang Zhao, Jinping Li, Libo Li
Summary: In this study, a facile in situ modulation strategy was used to achieve a balance between crystallinity and film formation in polycrystalline metal-organic framework (MOF) membranes. By adjusting the ratio of modulator acid/linker acid, a MOF membrane with moderate crystallinity and coherent morphology was obtained, exhibiting excellent molecular sieving properties for H2/CO2 separation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Jianhui Li, Puxu Liu, Yang Chen, Jinfei Zhou, Jingwei Li, Jiangfeng Yang, Daliang Zhang, Jinping Li, Libo Li
Summary: This article presents a method to enhance the moisture resistance of fragile metal-organic frameworks (MOFs) by constructing a customized hydrophobic porous shell, NTU-COF, on MOF-5 using the Plug-Socket Anchoring strategy. It was found that the pore structure of MOF-5 was well preserved and could achieve complete CO2/N-2 separation even under humid conditions. Atomic resolution inspection of the interface between MOF-5 and NTU-COF revealed insights into the assembly mechanism of the core-shell structure.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Applied
Kaiming Chen, Puxu Liu, Yong Wang, Yongheng Ren, Jianhui Li, Yang Chen, Jinping Li, Libo Li
Summary: In this study, CAU-1 was utilized to construct a functionalized pore environment with high stability for selective p-xylene (PX) adsorption and separation. The functionalized CAU-1-OH exhibited ultra-high PX adsorption capacity and improved PX/m-xylene (MX) selectivity, making it an excellent candidate for industrial PX purification from xylene isomers mixture.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Hongwei Chen, Binyu Wang, Bin Zhang, Jiuhong Chen, Jiabao Gui, Xiufeng Shi, Wenfu Yan, Jinping Li, Libo Li
Summary: Adsorptive separation using porous materials is a promising approach for separating alkynes/olefins due to its energy efficiency. However, the deep removal of trace amounts of C2H2 and CO2 from C2H4 using commercial adsorbents is still challenging. In this study, a low-cost inorganic metal cation-mediated mordenite (MOR) zeolite with specific K+ cations acting as a goalkeeper for accurately controlling diffusion channels was developed. The approach achieved exceptional results in purifying C2H4 from ternary CO2/C2H2/C2H4 mixtures.
Article
Chemistry, Multidisciplinary
Xin Lian, Pu-Xu Liu, Yue-Chao Yuan, Jing-Jing Pang, Lin Li, Shan-Shan Liu, Bin Yue, Ying-Hui Zhang, Libo Li, Jian Xu, Xian-He Bu
Summary: A stable metal-organic framework with a customized pore surface is reported to selectively adsorb paraffin and alkyne over olefin. This material exhibits excellent discrimination ability for C-3 hydrocarbon molecules and high selectivity for C3H8/C3H6 and C3H4/C3H6. Experimental results confirm its potential for simultaneous purification of ethylene and propylene.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Chemical
Xiufeng Shi, Bin Zhang, Hongwei Chen, Jinping Li, Libo Li
Summary: Organic amine-modified mordenite shows great potential in the ternary separation of CO2/C2H2/C2H4, improving separation performance and structural stability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
