Electrochemically Activated CNT Sheet as a Cathode for ZN-CO2 Batteries

Details

• Personal Author:
  Chen DR ; Chitranshi M ; Schulz M ; Shanov V
• Description:
  High demand for electrochemical storage devices is increasing the need for high-performance batteries. A Zn-CO2 battery offers a promising solution for CO2 reduction as well as energy storage applications. For this study, a Zn-CO2 battery was fabricated using a Carbon Nanotube (CNT) sheet as a cathode and a Zn plate as an anode. The electrochemical activation technique was used to increase the surface area of the CNT electrode by roughly 4.5 times. Copper (Cu) as a catalyst was then deposited onto the activated CNT electrode using electrodeposition method and different Cu loadings were investigated to optimize CO2 reduction. The final assembled Zn-CO2 battery has a 1.6 V output voltage at a current density of 0.063 mA/cm2, which is higher than most devices reported in the literature. This study demonstrates the importance of activation process which enabled more catalyst loading on the cathode resulted in additional active sites for electroreduction process. This paper presents the activated CNT sheet as a promising cathode material for Zn-CO2 batteries. [Description provided by NIOSH]
• Subjects:
  Carbon Dioxide Copper Occupational Health Safety
• Keywords:
  Author Keywords: CNT/Cu Composite Batteries Carbon Dioxide Carbon Nanotubes Catalysts CNT CO2 Reduction Electrochemical Properties Electrochemistry Zinc Zn-CO2 Battery

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• ISSN:
  1422-0067
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Ohio ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  23
• Issue:
  20
• NIOSHTIC Number:
  nn:20066287
• Citation:
  Int J Mol Sci 2022 Oct; 23(20):12602
• Contact Point Address:
  Mark Schulz, Department of Electrical Engineering and Computer Science, University of Cincinnati, Cincinnati, OH 45221, USA
• Email:
  schulzmk@ucmail.uc.edu
• CAS Registry Number:
  Carbon dioxide (CAS RN 124-38-9) ; Carbon nanotubes (CAS RN 308068-56-6) ; Copper (CAS RN 7440-50-8) ; Zinc (CAS RN 7440-66-6)
• Federal Fiscal Year:
  2023
• Performing Organization:
  University of Cincinnati
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  International Journal of Molecular Sciences
• End Date:
  20260630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:906ac66d4307ed143b9c56960d08e6b517f2e0941c6b5d75fa11c1bb5460a4c749e57497e3cd7addd4206020294e0e01ffb6f5b32eb165dd2a55a992cfc25ffd
• Download URL:
  https://stacks.cdc.gov/view/cdc/212764/cdc_212764_DS1.pdf
• File Type:
  [PDF - 3.32 MB ]