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 ◽  
...  

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,...

Author(s):  
Chenyu Liu ◽  
Haitong Wei ◽  
Yanhui Gao ◽  
Ning Wang ◽  
Xiaoying Yuan ◽  
...  

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.


CrystEngComm ◽  
2021 ◽  
Author(s):  
Hong Ou ◽  
Qiongyi Xie ◽  
Qingyun Yang ◽  
Jianen Zhou ◽  
Akif Zeb ◽  
...  

In recent years, metal-organic frameworks (MOFs) have been widely used in various fields, especially electrochemical energy storage and conversion area, because of their excellent properties. It is reported that the...


2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Xiaofang Liu ◽  
Zhigang Liu ◽  
Rui Wang

Currently, pristine and functionalized metal-organic frameworks (MOFs) are introduced in heterogeneous catalysis for biomass upgrading owing to the specific texture properties including regular higher-order structure, high specific surface area, and the precisely tailored diversity. The purpose of this review is to afford a comprehensive discussion of the most applications in biomass refinery. We highlight recently developed four types of MOFs like pristine MOFs and their composites, MOF-supported metal NPs, acid-functionalized MOFs, and biofunctionalized MOFs for production of green, sustainable, and industrially acceptable biomass-derived platform molecules: (1) upgrading of saccharides, (2) upgrading of furan derivatives, and (3) upgrading of other biobased compounds.


2019 ◽  
Vol 43 (17) ◽  
pp. 6452-6456 ◽  
Author(s):  
Jiangfeng Yang ◽  
Bingjie Du ◽  
Ning Yuan ◽  
Xiaoxia Jia ◽  
Jinping Li

A Cu-based metal–organic framework (PCN-6′) with octahedral crystal morphology was synthesized using a strong acid (HCl) and characterized by SEM, TGA and BET, which showed a larger specific surface area and pore volume than the corresponding counterpart that was prepared using a weak acid (oxalate).


2015 ◽  
Vol 8 (7) ◽  
pp. 1837-1866 ◽  
Author(s):  
Wei Xia ◽  
Asif Mahmood ◽  
Ruqiang Zou ◽  
Qiang Xu

This review presents a summary of recent progress and strategies in fabricating MOF-based nanostructures for electrochemical applications.


Author(s):  
Zhendong Hao ◽  
Yue Wu ◽  
Yating Hu ◽  
Chengjie Wang ◽  
Qianqian Zhang ◽  
...  

The selective transport of charge carriers has a great impact on the efficiency for electrochemical energy storage and conversion. However, pursuing membranes with high-performance ion selectivity is one of the...


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