Applied Catalysis2022，Vol.30715.DOI:10.1016/j.apcatb.2022.121195

Investigating the role of metals loaded on nitrogen-doped carbon-nanotube electrodes in electroenzymatic alcohol dehydrogenation

Kondaveeti, Sanath Park, Gi Dae Shanmugam, Ramasamy Pagolu, Raviteja Patel, Sanjay K. S. Bisht, Aarti Kim, Dong Rip Kang, Yun Chan Lee, Jung-Kul
Applied Catalysis2022，Vol.30715.DOI:10.1016/j.apcatb.2022.121195
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  • NSTL
  • Elsevier

Investigating the role of metals loaded on nitrogen-doped carbon-nanotube electrodes in electroenzymatic alcohol dehydrogenation

Kondaveeti, Sanath 1Park, Gi Dae 2Shanmugam, Ramasamy 1Pagolu, Raviteja 1Patel, Sanjay K. S. 1Bisht, Aarti 1Kim, Dong Rip 3Kang, Yun Chan 4Lee, Jung-Kul1
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作者信息

  • 1. Konkuk Univ
  • 2. Chungbuk Natl Univ
  • 3. Hanyang Univ
  • 4. Korea Univ
  • 折叠

Abstract

A new enzymatic biofuel cell (EBFC) is developed using conductive metal alloy nanoparticles with carbon cloth (CC) as an immobilization support for ethanol dehydrogenase (EtDH) and formolase (FLS). Ethanol (EtOH) dehydrogenation to acetaldehyde via direct electron transfer (DET) is pursued as the first step, followed by the condensation of acetaldehyde to acetoin. Metals are deposited onto novel three-dimensional jellyfish (JF)-shaped nanoparticles (SiO2-NCNT-CoFe2), where NCNT denotes "N-doped carbon nanotube ". The fabricated JF-me-tal-CC-EtDH bioelectrodes exhibit a variation in power generation with varying metals, with a value 37.6-fold higher than that of previously reported EBFC operations with DET for EtOH oxidation. The highest acetoin content is also found in JF-Os-CC-EtDH-FLS, attributable to faster electron uptake by the bioelectrode. First-principles calculations suggest that the d-state delocalization of metal-loaded JF particles is the cause of the enhanced catalytic activity, and it can be utilized in designing electrocatalysts.

Key words

Metal alloy nanoparticle/Carboligation/Acetoin/Enzyme fuel cell/First-principle analysis/FUEL-CELLS/GLUCOSE-OXIDASE/BIOFUEL CELL/PERFORMANCE/CATALYST/ETHANOL/NANOPARTICLES/ENTRAPMENT/XPS/NI

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出版年

2022
Applied Catalysis

Applied Catalysis

ISSN：0926-3373
被引量8
参考文献量51
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