Journal article
Strategic Fabrication of Au4Cu2 NC/ZIF-8 Composite Via In Situ Integration Technique for Enhanced Energy Storage Applications
Advanced functional materials, v 34(44), 2407059
29 Oct 2024
Abstract
Metal-organic frameworks (MOFs), known for their extensive porosity and versatile crystallinity, play a crucial role in the development of advanced energy storage materials. However, their application is limited by stability and conductivity issues. This study addresses these challenges by integrating ultrasmall metal nanoclusters, specifically Au4Cu2 NC, synthesized using a mixed ligand strategy combining 2, 4-Dimethyl benzene thiol (2,4-DMBTH) and 1,2-bis(diphenylphosphino)ethane (dppe). The bimetallic Au4Cu2 NC, characterized by Single Crystal X-Ray Diffraction (SCXRD), is applied to zeolitic imidazolate framework-8 (ZIF-8) using both in situ and ex situ methods to explore their electrochemical and physicochemical properties in energy storage. The in situ Au4Cu2 NC/ZIF-8 composite demonstrated a specific capacitance that is almost two times higher than its ex situ counterpart, attributed to homogeneous dispersion and hence enhanced conductivity. This in situ integration of atomically precise bimetallic nanoclusters on MOFs significantly boosts supercapacitor performance, offering a more effective and reliable solution for energy storage. Further, in practical applications, this device demonstrated an energy density of 87.2 Wh kg(-1) at a power density of 1474 W kg(-1), highlighting its robustness and potential for high-performance energy storage applications. This approach effectively combats the issue of nanocluster aggregation on substrates, marking a significant progression in supercapacitor technology.
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Details
- Title
- Strategic Fabrication of Au4Cu2 NC/ZIF-8 Composite Via In Situ Integration Technique for Enhanced Energy Storage Applications
- Creators
- Muhammad Ahmad - Drexel UniversityTehseen Nawaz - Chinese University of Hong KongYassine Eddahani - Drexel UniversityIftikhar Hussain (Corresponding Author) - City University of Hong KongXi Chen - City University of Hong KongKam Hung Low - University of Hong KongJian He - Chinese University of Hong KongKaili Zhang - City University of Hong Kong
- Publication Details
- Advanced functional materials, v 34(44), 2407059
- Publisher
- Wiley
- Number of pages
- 10
- Grant note
- Innovation and Technology Commission (HKSAR, China) 22201236 / National Natural Science Foundation of China; National Natural Science Foundation of China (NSFC) 9229006 / Donations for Research Projects_RMGS RGC: 27301820; 17313922 / University of Hong Kong, the Research Grants Council of the Hong Kong Special Administrative Region, People's Republic of China CityU 11218420 / Hong Kong Research Grants Council Croucher Foundation
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering; A.J. Drexel Nanomaterials Institute
- Web of Science ID
- WOS:001273669300001
- Scopus ID
- 2-s2.0-85199040366
- Other Identifier
- 991022202493804721