scholarly journals Reversible formation of coordination bonds in Sn-based metal-organic frameworks for high-performance lithium storage

2020 ◽  
Author(s):  
Jingwei Liu ◽  
Daixi Xie ◽  
Xiufang Xu ◽  
Luozhen Jiang ◽  
Rui Si ◽  
...  
Keyword(s):  
Active Sites ◽  
High Performance ◽  
Metal Organic Framework ◽  
Structure Characterization ◽  
Lithium Storage ◽  
Active Matrix ◽  
Storage Mechanism ◽  
Metal Organic ◽  
Coordination Bonds ◽  
Reversible Formation

Abstract Sn-based compounds with buffer matrixes possessing high theoretical capacity, low working voltage, and alleviation of the volume expansion of Sn are ideal materials for lithium storage. However, it is highly challenging to confine well-dispersed Sn within a lithium active matrix because low-melting-point Sn tends to agglomerate. Here, for the first time, we apply a metal-organic framework (MOF) chemistry between Sn-nodes and lithium active ligands to create two Sn-based MOFs comprising Sn2(dobdc) and Sn2(dobpdc) with extended ligands from H4dobdc (2,5-dioxido-1,4-benzenedicarboxylate acid) to H4dobpdc (4,4’-dioxidobiphenyl-3,3’-dicarboxylate acid) with molecule-level homodispersion of Sn in organic matrixes for lithium storage. The enhanced utilization of active sites and reaction kinetics are achieved by the isoreticular expansion of the organic linkers. The reversible formation of coordination bonds during lithium storage processes is first revealed by X-ray absorption fine structure characterization, providing an in-depth understanding of the lithium storage mechanism in coordination compounds.

scholarly journals Reversible formation of coordination bonds in Sn-based metal-organic frameworks for high-performance lithium storage

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jingwei Liu ◽  
Daixi Xie ◽  
Xiufang Xu ◽  
Luozhen Jiang ◽  
Rui Si ◽  
...  
Keyword(s):  
Active Sites ◽  
High Performance ◽  
Metal Organic Framework ◽  
Structure Characterization ◽  
Lithium Storage ◽  
Active Matrix ◽  
Storage Mechanism ◽  
Metal Organic ◽  
Coordination Bonds ◽  
Reversible Formation

AbstractSn-based compounds with buffer matrixes possessing high theoretical capacity, low working voltage, and alleviation of the volume expansion of Sn are ideal materials for lithium storage. However, it is challenging to confine well-dispersed Sn within a lithium active matrix because low-melting-point Sn tends to agglomerate. Here, we apply a metal-organic framework (MOF) chemistry between Sn-nodes and lithium active ligands to create two Sn-based MOFs comprising Sn2(dobdc) and Sn2(dobpdc) with extended ligands from H4dobdc (2,5-dioxido-1,4-benzenedicarboxylate acid) to H4dobpdc (4,4’-dioxidobiphenyl-3,3’-dicarboxylate acid) with molecule-level homodispersion of Sn in organic matrixes for lithium storage. The enhanced utilization of active sites and reaction kinetics are achieved by the isoreticular expansion of the organic linkers. The reversible formation of coordination bonds during lithium storage processes is revealed by X-ray absorption fine structure characterization, providing an in-depth understanding of the lithium storage mechanism in coordination compounds.

Bimetallic metal-organic framework derived Sn-based nanocomposites for high-performance lithium storage

2019 ◽  
Vol 323 ◽  
pp. 134855 ◽  
Author(s):  
Keqiang Xu ◽  
Lianbo Ma ◽  
Xiaoping Shen ◽  
Zhenyuan Ji ◽  
Aihua Yuan ◽  
...  
Keyword(s):  
High Performance ◽  
Metal Organic Framework ◽  
Lithium Storage ◽  
Metal Organic ◽  
Organic Framework

Morella-rubra-like metal–organic-framework-derived multilayered Co3O4/NiO/C hybrids as high-performance anodes for lithium storage

2017 ◽  
Vol 5 (46) ◽  
pp. 24269-24274 ◽  
Author(s):  
Yongzhe Wang ◽  
Mingguang Kong ◽  
Ziwei Liu ◽  
Chucheng Lin ◽  
Yi Zeng
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Metal Organic Framework ◽  
High Capacity ◽  
Lithium Ion ◽  
Lithium Storage ◽  
Metal Organic ◽  
Rate Capacity ◽  
Organic Framework

Multilayered Co3O4/NiO/C electrodes with a ball-in-ball hollow morphology are employed in lithium-ion batteries and deliver an excellent rate capacity of 421 mA h g−1 at 4 A g−1 and a high capacity of 776 mA h g−1 over 1000 cycles at 1 A g−1.

Graphite-like polyoxometalate-based metal–organic framework as an efficient anode for lithium ion batteries

CrystEngComm ◽  
2020 ◽  
Vol 22 (8) ◽  
pp. 1340-1345 ◽  
Author(s):  
Xiya Yang ◽  
Peipei Zhu ◽  
Xiaoliang Ma ◽  
Wenjing Li ◽  
Zenglong Tan ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
Metal Organic Framework ◽  
Lithium Ion ◽  
Impedance Spectra ◽  
Lithium Storage ◽  
Storage Mechanism ◽  
Metal Organic ◽  
Organic Framework

A new porous POM supported graphite-like MOF (Cu-POM) as a LIB anode material was designed and synthesized, and its lithium storage mechanism was explored using impedance spectra.

scholarly journals High Performance of UiO-66 Metal-Organic Framework Modified with Melamine for Uptaking of Lead and Cadmium from Aqueous Solutions

2021 ◽  
Author(s):  
alaaS Abdelmoaty ◽  
Shaimaa El-Wakeel ◽  
Nady Fathy ◽  
AdlyA Hanna
Keyword(s):  
Metal Ion ◽  
Active Sites ◽  
High Performance ◽  
Metal Organic Framework ◽  
Ion Concentration ◽  
Great Promise ◽  
Order Kinetic ◽  
Lead And Cadmium ◽  
Metal Organic ◽  
Organic Framework

Abstract In this paper, UiO-66 metal-organic framework (MOF) was prepared by a hydrothermal method and modified consequently with melamine (MUiO-66), as so as enhance the adsorption properties of these materials in liquid-phase adsorption. With respect to this, the adsorption of lead and cadmium divalent ions was performed under varying conditions of pH, metal ion concentration, contact time, adsorbent dose and temperature. Morphology, texture properties, functional groups, crystallinity and thermal properties of both MOFs were examined. UiO-66 composed of sphere-like particles and covered by layers of melamine with enhancing in crystallinity and active sites as well as the total surface area increased from 1080 to 1160 m2/g. The modified UiO-66 with melamine (MUiO-66) showed a notable adsorption capacity of 177.5 and 146.6 mg/g for Pb and Cd (II) ions, respectively. Adsorption of both metals fitted well with the pseudo-second-order kinetic and Langmuir models and controlled by a physisorption mechanism at pH of 5. Also, adsorption process is an endothermic in nature and desorption is achieved well for three cycles by MUiO-66. Therefore, UiO-66 and MUiO-66 obtained in this work have a great promise in adsorption of heavy metals such as Pb and Cd(II) ions from wastewater.

Mesoporous spindle-like hollow CuO/C fabricated from a Cu-based metal-organic framework as anodes for high-performance lithium storage

2017 ◽  
Vol 727 ◽  
pp. 1020-1026 ◽  
Author(s):  
Hai-Jun Peng ◽  
Gui-Xia Hao ◽  
Zhao-Hua Chu ◽  
Cai-Lian He ◽  
Xiao-Ming Lin ◽  
...  
Keyword(s):  
High Performance ◽  
Metal Organic Framework ◽  
Lithium Storage ◽  
Metal Organic ◽  
Organic Framework

One-step synthesis of MnS/MoS2/C through the calcination and sulfurization of a bi-metal–organic framework for a high-performance supercapacitor and its photocurrent investigation

2018 ◽  
Vol 47 (15) ◽  
pp. 5390-5405 ◽  
Author(s):  
Zhi Shuo Yan ◽  
Ji Ying Long ◽  
Qing Feng Zhou ◽  
Yun Gong ◽  
Jian Hua Lin
Keyword(s):  
Specific Capacitance ◽  
Hybrid Material ◽  
Active Sites ◽  
High Performance ◽  
Metal Organic Framework ◽  
High Specific Capacitance ◽  
Synergetic Effects ◽  
Metal Organic ◽  
One Step ◽  
The Individual

Using a bi-metallic Mn/Mo-MOF as a precursor, a MnS/MoS2/C hybrid material was synthesized with a high specific capacitance of 1162 F g−1 at 0.5 A g−1 in 2 M KOH solution due to the synergetic effects of the individual components and their exposed active sites.

Tuning ZnSe/CoSe in MOF-derived N-doped porous carbon/CNTs for high-performance lithium storage

2018 ◽  
Vol 6 (32) ◽  
pp. 15710-15717 ◽  
Author(s):  
Jun Jin ◽  
Yun Zheng ◽  
Ling Bing Kong ◽  
Narasimalu Srikanth ◽  
Qingyu Yan ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Porous Carbon ◽  
High Performance ◽  
Solution Method ◽  
Metal Organic Framework ◽  
Simple Solution ◽  
Lithium Storage ◽  
Metal Organic ◽  
Metal Selenides

Binary metal selenides (ZnSe/CoSe) encapsulated in N-doped carbon polyhedra interconnected with carbon nanotubes (ZCS@NC/CNTs) are prepared through a simple solution method, involving subsequent in situ pyrolysis and selenization of the metal–organic framework (MOF) precursor.

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