We report a new method to promote the conductivities of metal-organic frameworks (MOFs) by 5 to 7 magnitudes, thus their potential in electrochemical applications can be fully revealed. This method combines the polarity and porosity advantages of MOFs with the conductive feature of conductive polymers, in this case, polypyrrole (ppy), to construct ppy-MOF compartments for the confinement of sulfur in Li-S batteries. The performances of these ppy-S-in-MOF electrodes exceed those of their MOF and ppy counterparts, especially at high charge-discharge rates. For the first time, the critical role of ion diffusion to the high rate performance was elucidated by comparing ppy-MOF compartments with different pore geometries. The ppy-S-in-PCN-224 electrode with cross-linked pores and tunnels stood out, with a high capacity of 670 and 440 mAh g at 10.0 C after 200 and 1000 cycles, respectively, representing a new benchmark for long-cycle performance at high rate in Li-S batteries.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/anie.201712872 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Hyaluronic acid modified metal-organic frameworks loading cisplatin achieve combined chemodynamic therapy and chemotherapy for lung cancer.
Int J Biol Macromol
January 2025
Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, PR China; Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou, Sichuan 646000, PR China. Electronic address:
As one of the most commonly used chemotherapeutic agents in clinical practice, cisplatin is unable to selectively accumulate in tumor tissue due to its lack of targeting ability, leading to increased systemic toxicities. Additionally, the effectiveness of monotherapy is greatly limited. Therefore, the development of new cisplatin-based drug delivery systems is essential to improve the effectiveness of tumor treatment.
View Article and Find Full Text PDFModulation of interface structure on titanium-based metal-organic frameworks heterojunctions for boosting photocatalytic carbon dioxide reduction.
J Colloid Interface Sci
January 2025
College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China. Electronic address:
Rational regulation of interface structure in photocatalysts is a promising strategy to improve the photocatalytic performance of carbon dioxide (CO) reduction. However, it remains a challenge to modulate the interface structure of multi-component heterojunctions. Herein, a strategy integrating heterojunction with facet engineering is developed to modulate the interface structure of metal-organic frameworks (MOF)-based heterojunctions.
View Article and Find Full Text PDFEngineering conductive covalent-organic frameworks enable highly sensitive and anti-interference molecularly imprinted electrochemical biosensor.
Biosens Bioelectron
January 2025
Key Laboratory of Molecular Medicine and Biotherapy, the Ministry of Industry and Information Technology, School of Life Science, Beijing Institute of Technology, Beijing, 100081, China. Electronic address:
Covalent organic frameworks (COFs) have drawn great interest in electrochemical sensing. However, most are integrated as enrichment units or reaction carriers and are co-modified with metal nanomaterials. Few studies use the single pristine COFs as an electrochemical signal amplifier.
View Article and Find Full Text PDFPortable pH meter-based competitive immunoassay of E-selectin using urease-encapsulated metal-organic frameworks.
Talanta
January 2025
Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, 410081, PR China. Electronic address:
E-selectin (CD62E) is an adhesion molecule expressed on the surface of endothelial cells (ECs) and its level increases significantly upon the stimulation of ECs by inflammatory factors. Quantitative analysis of CD62E is of great importance to early diagnosis and treatment of vascular diseases and hypertension. A new method for the determination of CD62E was developed using a portable pH meter in this work.
View Article and Find Full Text PDFCombining Brillouin Light Scattering Spectroscopy and Machine-Learned Interatomic Potentials to Probe Mechanical Properties of Metal-Organic Frameworks.
J Phys Chem Lett
January 2025
Institute of Bioproducts and Paper Technology, Graz University of Technologyy, Inffeldgasse 23, 8010 Graz, Austria.
The mechanical properties of metal-organic frameworks (MOFs) are of high fundamental and practical relevance. A particularly intriguing technique for determining anisotropic elastic tensors is Brillouin scattering, which so far has rarely been used for highly complex materials like MOFs. In the present contribution, we apply this technique to study a newly synthesized MOF-type material, referred to as GUT2.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!