Highly Conductive Two-Dimensional Metal–Organic Frameworks for Resilient Lithium Storage with Superb Rate Capability

ACS Nano ◽  
2020 ◽  
Vol 14 (9) ◽  
pp. 12016-12026 ◽  
Author(s):  
Zhenzhen Wu ◽  
David Adekoya ◽  
Xing Huang ◽  
Milton J. Kiefel ◽  
Jian Xie ◽  
...  
Keyword(s):  
Metal Organic Frameworks ◽  
Rate Capability ◽  
Two Dimensional ◽  
Lithium Storage ◽  
Metal Organic

scholarly journals Nanosized Monometallic Selenides Heterostructures Implanted into Metal Organic Frameworks-Derived Carbon for Efficient Lithium Storage

2021 ◽  
Author(s):  
Zhichao Liu ◽  
Dong Wang ◽  
Hongliang Mu ◽  
Chunjie Zhang ◽  
Liqing Wu ◽  
...  
Keyword(s):  
Active Sites ◽  
Electrode Materials ◽  
Metal Organic Frameworks ◽  
Rate Capability ◽  
Ex Situ ◽  
Lithium Storage ◽  
Two Phase ◽  
Related Field ◽  
Transfer Resistance ◽  
Metal Organic

Abstract Two-phase heterostructure with rich phase boundaries holds great potential in engineering advanced electrode materials. However, current heterostructures are largely generated by introducing exotic cations or anions, complicating synthetic procedures and disturbing real insights into the intrinsic effect of heterostructure. Herein, nanosized monometallic selenides heterostructures are developed by precisely controlled selenylation of metal organic frameworks, which are implanted into in-situ formed carbon (NiSe/NiSe2@C, CoSe/CoSe2@C). The disordered atoms arrangement at two-phase boundary leads to the redistribution of interfacial charge and generation of lattice distortions, promoting easy adsorption and swift transfer of Li+, and providing extra active sites. As a proof of concept, the NiSe/NiSe2@C exhibits far surpassing lithium storage properties to single-phase counterparts (NiSe@C and NiSe2@C), including higher reversible capacity of 1015.5 mAh g− 1, better rate capability (500.8 mAh g− 1 at 4 A g− 1), and superior cyclic performance. As expected, the NiSe/NiSe2@C manifests lower charge transfer resistance, higher Li+ diffusion coefficient, and accelerated capacitive kinetics. Ex-situ X-ray diffraction, high-resolution transmission electron microscopy, and selected area electron diffraction combined with differential capacity versus voltage plots reveal multi-step redox mechanism of NiSe/NiSe2@C and the reason of conspicuous capacity enhancement. This work demonstrates the enormous potential of monometallic monoanionic heterostructure in energy-related field.

Construction of NiCo2O4@graphene nanorods by tuning the compositional chemistry of metal–organic frameworks with enhanced lithium storage properties

2018 ◽  
Vol 6 (40) ◽  
pp. 19604-19610 ◽  
Author(s):  
Zhiqing Jia ◽  
Yingbin Tan ◽  
Zhonghui Cui ◽  
Linlin Zhang ◽  
Xiangxin Guo
Keyword(s):  
Storage Capacity ◽  
Metal Organic Frameworks ◽  
Rate Capability ◽  
Cycling Stability ◽  
Lithium Storage ◽  
Metal Organic ◽  
Storage Properties ◽  
Li Storage

NiCo2O4@graphene nanorods synthesized by tuning the compositional chemistry of metal–organic frameworks exhibit high Li-storage capacity, excellent rate capability and extraordinary cycling stability.

Encapsulating ionic liquids into POM-based MOFs to improve their conductivity for superior lithium storage

2018 ◽  
Vol 6 (18) ◽  
pp. 8735-8741 ◽  
Author(s):  
Mi Zhang ◽  
A-Man Zhang ◽  
Xiao-Xiao Wang ◽  
Qing Huang ◽  
Xiaoshu Zhu ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Anode Materials ◽  
Metal Organic Frameworks ◽  
Rate Capability ◽  
Reversible Capacity ◽  
Cycling Stability ◽  
Lithium Storage ◽  
High Reversible Capacity ◽  
Metal Organic ◽  
Superior Cycling Stability

We encapsulate ionic liquids (ILs) into polyoxometalate-based metal–organic frameworks (POMOFs) to fabricate a series of ILs-functionalized POMOFs crystals (POMs-ILs@MOFs) and PMo10V2-ILs@MIL-100 crystals used as anode materials show high reversible capacity, superior cycling stability and rate capability.

A small molecular, a big scissoring effect: sodium dodecyl sulfate working on two-dimensional metal organic frameworks

CrystEngComm ◽  
2021 ◽  
Author(s):  
Qing Luo ◽  
Zhen Ding ◽  
Huamin Sun ◽  
Zhen Cheng ◽  
Naien SHI ◽  
...  
Keyword(s):  
Sodium Dodecyl Sulfate ◽  
Active Sites ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
Sodium Dodecyl ◽  
Advanced Materials ◽  
Controlled Synthesis ◽  
Two Dimensional ◽  
Dodecyl Sulfate ◽  
Metal Organic

Ultrathin two-dimensional (2D) metal-organic framework (MOF) nanosheets are prosperous advanced materials due to their particularly thin thickness and exposed active sites. The difficulty in the controlled synthesis of 2D MOF...

Metal-Organic Framework Transistors for Dopamine Sensing

2021 ◽  
Author(s):  
Jiajun Song ◽  
Jianzhong Zheng ◽  
Anneng Yang ◽  
Hong Liu ◽  
Zeyu Zhao ◽  
...  
Keyword(s):  
Charge Transport ◽  
Transport Properties ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
High Porosity ◽  
Two Dimensional ◽  
Metal Organic ◽  
Organic Framework

Two-dimensional (2D) conductive metal-organic frameworks (MOFs) can not only inherit the high porosity and tailorability of traditional MOFs but also exhibit unique charge transport properties, offering promising opportunities for applications...

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