Bimetallic Metal-Organic Framework-Derived Carbon Nanotube-Based Frameworks for Enhanced Capacitive Deionization and Zn-Air Battery

Shi, Wenhui; Xu, Xilian; Ye, Chenzeng; Sha, Dongyong; Yin, Ruilian; Shen, Xuhai; Liu, Xiaoyue; Liu, Wenxian; Shen, Jiangnan; Cao, Xiehong; Gao, Congjie

doi:10.3389/fchem.2019.00449

Cited by 30 publications

(10 citation statements)

References 52 publications

(52 reference statements)

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“…Metal-organic frameworks (MOFs) are a series of adjustable organic-inorganic hybrid materials with adjustable structures [37,38]. In short, metal ions are uniformly dispersed at the atomic level in the MOFs precursor, and the presence of organic ligands in the MOFs enables them to be calcined into various carbon materials without introducing an external carbon source [39].…”

Section: Introductionmentioning

confidence: 99%

Co/CoP Nanoparticles Encapsulated Within N, P-Doped Carbon Nanotubes on Nanoporous Metal-Organic Framework Nanosheets for Oxygen Reduction and Oxygen Evolution Reactions

Yang

Ren

et al. 2020

Nanoscale Res Lett

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Herein, Co/CoP nanoparticles encapsulated with N, P-doped carbon nanotubes derived from the atomic layer deposited hexagonal metal-organic frameworks (MOFs) are obtained by calcinations and subsequent phosphating and are employed as electrocatalyst. The electrocatalytic performance evaluations show that the as-prepared electrocatalyst exhibits an overpotential of 342 mV at current density of 10 mA cm −2 and the Tafel slope of 74 mV dec −1 for oxygen evolution reaction (OER), which is superior to the most advanced ruthenium oxide electrocatalyst. The electrocatalyst also shows better stability than the benchmark RuO 2. After 9 h, the current density is only decreased by 10%, which is far less than the loss of RuO 2. Moreover, its onset potential for oxygen reduction reaction (ORR) is 0.93 V and follows the ideal 4-electron approach. After the stability test, the current density of the electrocatalyst retains 94% of the initial value, which is better than Pt/C. The above results indicate that the electrocatalyst has bifunctional activity and excellent stability both for OER and ORR. It is believed that this strategy provides guidance for the synthesis of cobalt phosphide/carbon-based electrocatalysts.

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Section: Introductionmentioning

confidence: 99%

Co/CoP Nanoparticles Encapsulated Within N, P-Doped Carbon Nanotubes on Nanoporous Metal-Organic Framework Nanosheets for Oxygen Reduction and Oxygen Evolution Reactions

Yang

Ren

et al. 2020

Nanoscale Res Lett

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“…In the past decade, various types of solid sorbents have been attempted for CCS. Examples include zeolites (Megías-Sayago et al, 2019), modified porous silicas (Dassanayake et al, 2017), metal organic frameworks (MOFs) (Shi et al, 2019), calcium looping sorbents (Zhu et al, 2017), polymer membranes (Ahmad et al, 2016;Zhang et al, 2019), and nanoporous carbons (NCs) . In particular, MOFs and NCs have received much attention due to their excellent capture performance.…”

Section: Introductionmentioning

confidence: 99%

Constructing Hierarchical Porous Carbons With Interconnected Micro-mesopores for Enhanced CO2 Adsorption

et al. 2020

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A high cost-performance carbon dioxide sorbent based on hierarchical porous carbons (HPCs) was easily prepared by carbonization of raw sugar using commercially available nano-CaCO 3 as a double-acting template. The effects of the initial composition and carbonization temperature on the micro-mesoporous structure and adsorption performance were examined. Also, the importance of post-activation behavior in the development of micropores and synthesis route for the formation of the interconnected micro-mesoporous structure were investigated. The results revealed excellent carbon dioxide uptake reaching up 2.84 mmol/g (25 o C, 1 bar), with micropore surface area of 786 m 2 /g, micropore volume of 0.320 cm 3 /g and mesopore volume of 0.233 cm 3 /g. We found that high carbon dioxide uptake was ascribed to the developed micropores and interconnected micro-mesoporous structure. As an expectation, the optimized HPCs offers a promising new support for the high selective capture of carbon dioxide in the future.

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“…For example, Shi et al reported a CoFe-MOF-derived carbon as CDI electrodes showing 37 mg g −1 of SAC. [200] Also, Huo et al studied CoZn-MOF-derived carbon for CDI application. [201] They revealed that the carbon was atomically well-dispersed with Co-N active sites.…”

Section: Mof-derived Carbonsmentioning

confidence: 99%

Electrocapacitive Deionization: Mechanisms, Electrodes, and Cell Designs

Sun

Tebyetekerwa

Wang

et al. 2023

Adv Funct Materials

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freshwater storage. [6,7] Figure 1 shows the annual average monthly blue water (fresh surface water and groundwater) scarcity.Regions like Australia, central America, North China, and North Africa face the highest freshwater scarcity. Two-thirds of the global population suffers from severe freshwater scarcity at least 1 month of the year, and half a billion people worldwide face severe freshwater scarcity all year around. [8] This issue will intensify in the future due to climate change and evergrowing water consumption.The earth's climate and the terrestrial water cycle have a close and complex relationship. [9] Climate change is causing parts of the water cycle to speed up as warming temperatures increase the water evaporation rate. Scientific evidence shows that global warming is now unequivocal. [10] Greenhouse gas emissions have steeply increased, directly affecting terrestrial water budgets. For example, water decreases have already been observed in western Africa, southwestern Australia, the Yellow River basin in China, and the Pacific Northwest of the United States of America. Such decreases affect freshwater availability directly. [8,11] In addition to the negative effects of climate change on freshwater access, the higher water consumption of our world population and economic activities are causing great additional freshwater stress. For example, agriculture consumes 50-60%, industries use 5-10%, and 10-20% is used for urban purposes. [12] Further, many of these activities may lead to polluted water, decreasing the available clean and freshwater. For these reasons, the United Nations declared freshwater as one of the many global challenges that need immediate action for sustainable development. [13] Depending on the total mass of dissolved solids in water, natural water is classified into brine water (>50 g L −1 ), saline water (30-50 g L −1 ), brackish water (0.5-30 g L −1 ), and freshwater (0-0.5 g L −1 ). [14] According to the World Health Organization, drinkable water should contain <0.25 g L −1 of salt, and the limitation on agriculture irrigation is 2 g L −1 . [15,16] There is a need to obtain freshwater by leveraging the tremendous amount of non-fresh water that can be made useable. This can be done by extracting undesirable ions from existing water in a desalination process. This process needs to be energy-efficient and cheap for sustainability and affordability. Water desalination is a promising and practical approach to maintaining an adequate potable water supply. [17,18] Capacitive deionization (CDI) is burgeoning as a cost-effective and energy-efficient

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Bimetallic Metal-Organic Framework-Derived Carbon Nanotube-Based Frameworks for Enhanced Capacitive Deionization and Zn-Air Battery

Cited by 30 publications

References 52 publications

Co/CoP Nanoparticles Encapsulated Within N, P-Doped Carbon Nanotubes on Nanoporous Metal-Organic Framework Nanosheets for Oxygen Reduction and Oxygen Evolution Reactions

Co/CoP Nanoparticles Encapsulated Within N, P-Doped Carbon Nanotubes on Nanoporous Metal-Organic Framework Nanosheets for Oxygen Reduction and Oxygen Evolution Reactions

Constructing Hierarchical Porous Carbons With Interconnected Micro-mesopores for Enhanced CO2 Adsorption

Electrocapacitive Deionization: Mechanisms, Electrodes, and Cell Designs

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