Preparation, characterization, and electrochemical sensing performance of a novel pristine Cd-MOF and its composite with carbon nanotubes

Chen, Yang; Wang, Qi; Zhang, Kou-Lin

doi:10.1039/d3dt00353a

Dalton Trans.

2023

DOI: 10.1039/d3dt00353a

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Preparation, characterization, and electrochemical sensing performance of a novel pristine Cd-MOF and its composite with carbon nanotubes

Yang Chen

Qi Wang

Kou-Lin Zhang

Abstract: A novel Cd(II)-organic framework (Cd-MOF), {[Cd(isba)(bbtz)2(H2O)]H2O}n (1) and its composite with CNTs (Cd-MOF@CNTs), [H2isba = 2-iodo-4-sulfobenzoicacid; bbtz = 1, 4-bis(1,2,4-triazolyl-1-methyl)benzene], were synthesized successfully under ambient condition. Cd-MOF is a 2D...

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Cited by 14 publications

References 103 publications

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Regulating Polysulfide Transformation and Stabilizing Lithium Anode Using [PMo₁₂O₄₀]³⁻ Cluster@Carbon Nanotube‐Modified Separator for Lithium‐Sulfur Batteries

Zhou,

Ma,

Yang

et al. 2024

Batteries & Supercaps

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Lithium‐sulfur (Li−S) batteries emerge as compelling contenders for next‐generation energy‐storage devices, boasting a noteworthy mass‐specific energy of 2600 Wh kg−1. However, the cycle stability and commercialization of Li−S batteries encounter challenges because of polysulfide shuttle and uncontrolled lithium dendrite growth. In this study, we present a polyoxometalates‐based dual‐function [PMo12O40]3− cluster@carbon nanotube modified polypropylene (PP) separator (PMo12@CNT/PP) to regulate polysulfide transformation and safeguard the lithium anode in Li−S batteries. Leveraging its multi‐electron redox properties and stable cluster structure, the PMo12 cluster acts as a polysulfide mediator, effectively capturing and promoting electrochemical polysulfide transformation. The incorporation of CNT fosters consistent Li‐ion nucleation, stabilizes the lithium anode, and impedes dendrite formation throughout cycling. Hence, Li−S cells equipped with the PMo12@CNT/PP separator display higher capacity and better stability (675 mAh g−1 at 3.0 C and 0.02 % capacity decay per cycle over 700 cycles). The pouch cells with a sulfur loading 4.5 mg cm−2 exhibit an initial discharge specific capacity of 925 mAh g−1 at 0.1 C, and remain 849 mAh g−1 after 40 cycles, underscoring the significant potential for practical applications of Li−S batteries.

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Regulating Polysulfide Transformation and Stabilizing Lithium Anode Using [PMo₁₂O₄₀]³⁻ Cluster@Carbon Nanotube‐Modified Separator for Lithium‐Sulfur Batteries

Zhou,

Ma,

Yang

et al. 2024

Batteries & Supercaps

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Fabrication of a Multi‐Functional Separator Incorporating Crown ether‐ Polyoxometalate Supramolecular Compound for Lithium‐Sulfur Batteries

Jiang,

Wu,

et al. 2024

Chemistry A European J

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Recently, research on polyoxometalates (POMs) has gained significant momentum. Owing to their properties as electronic sponges, POMs catalyst harbor substantial potential in lithium‐sulfur battery research. However, POMs undergo a transformation into reduced heteropoly blue (HPB) during electrochemical reactions, which then dissolve into the electrolyte, resulting in catalyst loss. In this research, we amalgamated 18‐crown‐6 (CR6) with K3PW12O40, (KPW), synthesized a novel POM‐based supramolecular compound, and integrated it with graphene oxide (GO) to fabricate a multi‐functional composite polypropylene (PP) separator KPW‐CR6/GO/PP. The crown ether array was employed to immobilize POM and construct ion transport channels, thereby enhancing the Li+ migration rate and capturing polysulfides. Subsequently, leveraging the stable structure and redox properties of POM, the polysulfide is catalyzed to transform and inhibit the shuttle effect, thereby protecting the Li anode. The lithium‐sulfur batteries with the Crown ether‐POM supramolecular compound separators, exhibit enhanced capacity and stability (1073.3 mAh g‐1 at 1.0 C, and 81.5% retention rate after 250 cycles). The battery (S loading: 3.2 mg cm−2) presents an initial specific discharge capacity of 543.4 mAh g−1 at 0.5 C, with 89.8% of the capacity retained after 160 cycles. This underlines the practical application potential of Crown ether‐POM supramolecular materials in Li−S batteries.

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Engineered Conductive Metal–organic Frameworks for Electrochemical Detection of Urinary Biomarkers

Mohan,

Asif,

Pombeiro

2024

Small

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The increasing prevalence of health concerns has sparked a demand for advanced health monitoring tools, which is a significant challenge for researchers. Analysis of biofluid samples and biomarker monitoring is vital for comprehensive health assessment. In this context, metal–organic frameworks (MOFs) have emerged as one of the leading materials for developing cutting‐edge artificial sensors. These unique MOFs have been developed from metallic and organic linkers and consist of tunable pores and dynamic surface areas, attracting various guest molecules to participate in developing advanced electrochemical devices. This study is a gateway to a world where MOF designs transcend mere inventions, morphing into electric marvels that revolutionize urine sample monitoring. From the inception and design to the fabrication of MOF sensors tailored for electrochemical applications, this study prides itself on elucidating the factors affecting MOF‐based electrical devices and sensors. Moreover, the focus is placed on conductivity, electrode properties, and recent state‐of‐the‐art urine sample analysis, highlighting the pivotal role biomarkers play in honing the resilience and performance of the sensors. Finally, this study is specific to electrochemical sensors used for urine analysis. It will attract researchers to develop new portable tools for health monitoring by analyzing urine samples.

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Preparation, characterization, and electrochemical sensing performance of a novel pristine Cd-MOF and its composite with carbon nanotubes

Abstract: A novel Cd(II)-organic framework (Cd-MOF), {[Cd(isba)(bbtz)2(H2O)]H2O}n (1) and its composite with CNTs (Cd-MOF@CNTs), [H2isba = 2-iodo-4-sulfobenzoicacid; bbtz = 1, 4-bis(1,2,4-triazolyl-1-methyl)benzene], were synthesized successfully under ambient condition. Cd-MOF is a 2D...

Cited by 14 publications

References 103 publications

Regulating Polysulfide Transformation and Stabilizing Lithium Anode Using [PMo₁₂O₄₀]³⁻ Cluster@Carbon Nanotube‐Modified Separator for Lithium‐Sulfur Batteries

Regulating Polysulfide Transformation and Stabilizing Lithium Anode Using [PMo₁₂O₄₀]³⁻ Cluster@Carbon Nanotube‐Modified Separator for Lithium‐Sulfur Batteries

Fabrication of a Multi‐Functional Separator Incorporating Crown ether‐ Polyoxometalate Supramolecular Compound for Lithium‐Sulfur Batteries

Engineered Conductive Metal–organic Frameworks for Electrochemical Detection of Urinary Biomarkers

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Preparation, characterization, and electrochemical sensing performance of a novel pristine Cd-MOF and its composite with carbon nanotubes

Abstract: A novel Cd(II)-organic framework (Cd-MOF), {[Cd(isba)(bbtz)2(H2O)]H2O}n (1) and its composite with CNTs (Cd-MOF@CNTs), [H2isba = 2-iodo-4-sulfobenzoicacid; bbtz = 1, 4-bis(1,2,4-triazolyl-1-methyl)benzene], were synthesized successfully under ambient condition. Cd-MOF is a 2D...

Cited by 14 publications

References 103 publications

Regulating Polysulfide Transformation and Stabilizing Lithium Anode Using [PMo12O40]3− Cluster@Carbon Nanotube‐Modified Separator for Lithium‐Sulfur Batteries

Regulating Polysulfide Transformation and Stabilizing Lithium Anode Using [PMo12O40]3− Cluster@Carbon Nanotube‐Modified Separator for Lithium‐Sulfur Batteries

Fabrication of a Multi‐Functional Separator Incorporating Crown ether‐ Polyoxometalate Supramolecular Compound for Lithium‐Sulfur Batteries

Engineered Conductive Metal–organic Frameworks for Electrochemical Detection of Urinary Biomarkers

Contact Info

Product

Resources

About

Regulating Polysulfide Transformation and Stabilizing Lithium Anode Using [PMo₁₂O₄₀]³⁻ Cluster@Carbon Nanotube‐Modified Separator for Lithium‐Sulfur Batteries

Regulating Polysulfide Transformation and Stabilizing Lithium Anode Using [PMo₁₂O₄₀]³⁻ Cluster@Carbon Nanotube‐Modified Separator for Lithium‐Sulfur Batteries