Porous cobalt–manganese oxide nanocubes derived from metal organic frameworks as a cathode catalyst for rechargeable Li–O2 batteries

Nanoscale ◽  
2015 ◽  
Vol 7 (2) ◽  
pp. 720-726 ◽  
Author(s):  
Jian Zhang ◽  
Liangjun Wang ◽  
Leilei Xu ◽  
Xiaoming Ge ◽  
Xiao Zhao ◽  
...  
Keyword(s):  
Specific Surface ◽  
Manganese Oxide ◽  
Surface Area ◽  
Metal Organic Frameworks ◽  
Cathode Catalyst ◽  
Large Specific Surface Area ◽  
Rate Performance ◽  
Cycle Stability ◽  
Porous Cathode ◽  
Metal Organic

Porous cathode catalyst: the porous cobalt–manganese oxide nanocubes catalyst with large specific surface area and good electrochemical activity endows Li–O2 battery with good ORR/OER activity (reduced voltage gap), improved rate performance and excellent cycle stability.

3D hollow cage copper cobalt sulfide derived from metal–organic frameworks for high-performance asymmetric supercapacitors

CrystEngComm ◽  
2021 ◽  
Author(s):  
Jiaqi Wang ◽  
Yiling Quan ◽  
Guoxiang Wang ◽  
Dazhi Wang ◽  
Jie Xiao ◽  
...  
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
High Performance ◽  
Solvothermal Method ◽  
Metal Organic Frameworks ◽  
Cobalt Sulfide ◽  
Large Specific Surface Area ◽  
Asymmetric Supercapacitors ◽  
Metal Organic ◽  
One Step

Metal–organic frameworks (MOFs) attracted considerable attention through their large specific surface area and excellent adjustable voids. A one-step solvothermal method is proposed herein to fabricate the 3D hollow cage copper-cobalt...

The photo-, electro- and photoelectro-catalytic properties and application prospects of porous coordinate polymers

2018 ◽  
Vol 6 (15) ◽  
pp. 6130-6154 ◽  
Author(s):  
Haolin Zhu ◽  
Dingxin Liu ◽  
Dianting Zou ◽  
Jianyong Zhang
Keyword(s):  
Catalytic Activity ◽  
Specific Surface ◽  
Surface Area ◽  
Gas Adsorption ◽  
Catalytic Properties ◽  
Metal Organic Frameworks ◽  
High Catalytic Activity ◽  
Large Specific Surface Area ◽  
Metal Organic ◽  
Application Prospects

Since the discovery of metal–organic frameworks (MOFs), covalent–organic frameworks (COFs) and zeolite–imidazole frameworks (ZIFs), many of their outstanding properties have been explored such as their large specific surface area, significant gas adsorption, and high catalytic activity.

Design of metal-organic frameworks composites in anti-cancer therapies

Nanoscale ◽  
2021 ◽  
Author(s):  
Yadan Zheng ◽  
Xiaoyuan Zhang ◽  
Zhiqiang Su
Keyword(s):  
Physical Properties ◽  
Specific Surface ◽  
Pore Size ◽  
Surface Area ◽  
Metal Organic Frameworks ◽  
Cancer Therapies ◽  
Large Specific Surface Area ◽  
Anti Cancer ◽  
Metal Organic ◽  
Excellent Chemical

Metal-organic frameworks are a class of new and promising anti-cancer materials. MOFs with adjustable pore size, large specific surface area, diverse structure, and excellent chemical and physical properties make them...

Property of Nanoporous Metal-Organic Frameworks at Different Synthesis Temperature

2012 ◽  
Vol 427 ◽  
pp. 123-127
Author(s):  
Yuan Hui Ma ◽  
Lei Zhang ◽  
Cheng Chun Tang
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Reaction Temperature ◽  
Metal Organic Frameworks ◽  
Synthesis Temperature ◽  
Structure Stability ◽  
Nanoporous Metal ◽  
Metal Organic ◽  
Ft Ir

The nanoporous metal-organic frameworks were synthesized under solvothermal conditions using organic solvent dimethylformamide. The samples were characterized by XRD, SEM, TGA, FT-IR and specific surface area for their properties difference. When the reaction temperature rises, the particle size becomes larger. All TGA curves are the basically same, the framework structure begins to be destroyed from 500°C up to around 600°C. The metal-organic frameworks accepted at reaction temperature 190°C have larger specific surface area and better structure stability.

scholarly journals Application of CoMn/CoFe layered double hydroxide based on metal-organic frameworks template to activate peroxymonosulfate for 2, 4-dichlorophenol degradation

2021 ◽  
Author(s):  
Chenyu Liu ◽  
Haitong Wei ◽  
Yanhui Gao ◽  
Ning Wang ◽  
Xiaoying Yuan ◽  
...  
Keyword(s):  
Specific Surface ◽  
Pore Structure ◽  
Surface Area ◽  
Specific Surface Area ◽  
Active Sites ◽  
Metal Organic Frameworks ◽  
High Specific Surface Area ◽  
State Transformation ◽  
Alkaline Conditions ◽  
Metal Organic

Abstract Metal-Organic Frameworks (MOFs) have unique properties and stable structure, which have been widely used as templates/precursors to prepare well-developed pore structure and high specific surface area materials. In this article, an innovative and facile method of crystal reorganization was designed by using MOFs as sacrificial templates to prepare LDH nano-layer sheet structure through a pseudomorphic conversion process under alkaline conditions. The obtained CoMn-LDH and CoFe-LDH catalysts broke the ligand of MOFs and reorganized the structure on the basis of retaining a high specific surface area and a large number of pores, which have higher specific surface area and well-developed pore structure than LDH catalysts prepared by traditional methods, and thus provide more active sites to activate PMS. Due to the unique framework structure of MOFs, the MOF derived CoMn-LDH and CoFe-LDH catalysts could provide more active sites to activate PMS, and achieve a 2, 4-dichlorophenol (2, 4-DCP) degradation of 99.3% and 99.2% within 20 min, respectively. Besides, the two LDH catalysts displayed excellent degradation performance for bisphenol A (BPA), ciprofloxacin (CIP) and 2, 4-dichlorophenoxyacetic acid (2, 4-D). XPS indicated that the valence state transformation of metal elements participated in PMS activation. EPR manifested sulfate radical () and singlet oxygen (1O2) were the main species for degrading pollutants. In addition, after the three-cycle experiment, the CoMn-LDH and CoFe-LDH catalysts also showed long-term stability with a slight activity decrease in the third cycle. The phytotoxicity assessment determined by the germination of mung beans proved that PMS activation by MOFs-derived LDH catalyst can basically eliminate the phytotoxicity of 2, 4-D solution. This research not only developed high-activity LDH catalysts for PMS activation, but also expanded the environmental applications of MOFs derivants.

Fluoride sensing performance of fluorescent NH2-MIL-53(Al): 2D Nanosheets vs. 3D Bulk

2021 ◽  
Author(s):  
Zixuan Li ◽  
Deyi Zhan ◽  
Abdul Saeed ◽  
Nanjing Zhao ◽  
Junfeng Wang ◽  
...  
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Active Sites ◽  
Metal Organic Frameworks ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Metal Organic ◽  
2D Nanosheets ◽  
Fluoride Sensing ◽  
Sensing Performance

Due to the ultra-thin morphology, larger specific surface area and more exposed active sites, two-dimensional (2D) metal-organic frameworks (MOFs) nanosheets can break the limitations of three-dimensional (3D) MOFs in sensitivity,...

A review on metal-organic framework-derived anode materials for potassium-ion batteries

2021 ◽  
Author(s):  
Qiongyi Xie ◽  
Hong Ou ◽  
Qingyun Yang ◽  
Xiaoming Lin ◽  
Akif Zeb ◽  
...  
Keyword(s):  
Energy Storage ◽  
Specific Surface ◽  
Surface Area ◽  
Anode Materials ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
High Specific Surface Area ◽  
Electrochemical Energy Storage ◽  
Energy Storage And Conversion ◽  
Metal Organic

In recent years, metal-organic frameworks (MOFs) have been widely used in various fields, including electrochemical energy storage and conversion because of their excellent properties, such as high specific surface area,...

Construction of hierarchical layered hydroxide grown in situ on carbon tubes derived from a metal–organic framework for asymmetric supercapacitors

2021 ◽  
Author(s):  
Chunyan Li ◽  
Gaomin Zhang ◽  
Xin Li ◽  
Huiqin Wang ◽  
Pengwei Huo ◽  
...  
Keyword(s):  
Specific Surface ◽  
Specific Capacitance ◽  
Metal Organic Framework ◽  
Carbon Cloth ◽  
Large Specific Surface Area ◽  
Carbon Nanomaterial ◽  
Cycle Stability ◽  
Asymmetric Supercapacitors ◽  
Metal Organic

The NiGa-LDH@CNT-500@CC electrode prepared on carbon cloth has good specific capacitance and cycle stability. This is mainly due to the high conductivity and large specific surface area of carbon nanomaterial prepared by MOF.

scholarly journals Adsorption of carbon dioxide on MIL53(Al), CuBTC and K- NaX zeolite

2020 ◽  
Vol 4 (3) ◽  
pp. 30-42
Author(s):  
Fehime Cakicioglu-Ozkan
Keyword(s):  
Carbon Dioxide ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Co2 Adsorption ◽  
Ultrasonic Method ◽  
Metal Organic Frameworks ◽  
Isosteric Heat ◽  
Metal Organic ◽  
Increasing Temperature

CO2 adsorption on K exchanged NaX zeolites, and metal organic frameworks (MOFs), namely Cu-BTC and MIL53 (Al) was studied at 5 °C and 25 °C.  Exchange via ultrasonic and traditional methods, was conducted at 50 °C and 70 °C. The maximum replacement of Na+ ion with K+ ion in the extra framework of zeolite was increased from 76% to 83% with increasing temperature from 50 °C to 70 °C in the ultrasonic method which is more effective than traditional one. Compared with the zeolites, the MOF adsorbents used in this work have higher Langmuir specific surface area values namely 1278, 1473 and about 1000 m2/g for MIL 53, Cu-BTC and zeolite adsorbents respectively. The resulting CO2 isotherms can be well represented by the Toth equation. Comparison of the isosteric heat of adsorption at zero loading shows that CO2 was adsorbed more weakly on MOFs than zeolites.

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