Journal article
MOF-derived Cu embedded into N-doped mesoporous carbon as a robust support of PdAu nanocatalysts for ethanol electrooxidation
RARE METALS
06 Dec 2023
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Metal-organic frameworks (MOFs) have attracted widespread attention due to their large surface area and porous structure. Rationally designing the nanostructures of MOFs to promote their application in ethanol electrooxidation is still a challenge. Here, a novel Cu-NCNs (Cu-nitrogen-doped carbon nanotubes) support was synthesized by pyrolysis of melamine (MEL) and Cu-ZIF-8 together, and then, Pd-Au nanoalloys were loaded by sodium borohydride reduction method to prepare PdAu@Cu-NCNs catalysts. The generating mesoporous carbon with high specific surface area and favorable electron and mass transport can be used as a potential excellent carrier for PdAu nanoparticles. In addition, the balance of catalyst composition and surface structure was tuned by controlling the content of Pd and Au. Thus, the best-performed Pd2Au2@Cu-NCN-1000-2 (where 1000 means the carrier calcination temperature, and 2 means the calcination constant temperature time) catalyst exhibits better long-term stability and electrochemical activity for ethanol oxidation in alkaline media (4.80 A center dot mg(-1)), which is 5.05 times higher than that of commercial Pd/C (0.95 A center dot mg(-1)). Therefore, this work is beneficial to further promoting the application of MOFs in direct ethanol fuel cells (DEFCs) and can be used as inspiration for the design of more efficient catalyst support structures.
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Details
- Title
- MOF-derived Cu embedded into N-doped mesoporous carbon as a robust support of PdAu nanocatalysts for ethanol electrooxidation
- Publication Details
- RARE METALS
- Publisher
- NONFERROUS METALS SOC CHINA; BEIJING
- Grant note
- This work is financially supported by the Program for Professor of Special Appointment (Eastern Scholar) at SIHL, Project of Shanghai Municipal Science and Technology Commission (No. 22DZ2291100), Open Fund of Anhui International Joint Research Center for Nano Carbon-based Materials and Environmental Health (No. NCMEH2022Y02), Gaoyuan Discipline of Shanghai-Materials Science and Engineering, and Shanghai Polytechnic University-Drexel University Joint Research Center for Optoelectronics and Sensing. This work is also supported by the Science Fund for Distinguished Young Scholars of Fujian Province (No. 2019J06027), the Open Project of Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices (Soochow University) (No. KS2022), Collaborative Innovation Center of Suzhou Nano Science & Technology, the 111 Project, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices.
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Drexel University
- Web of Science ID
- WOS:001116899100001
- Scopus ID
- 2-s2.0-85178949669
- Other Identifier
- 991021861288304721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Materials Science, Multidisciplinary
- Metallurgy & Metallurgical Engineering