Size-Dependent Intercalation of Ions into Highly Oriented Pyrolytic Graphite in Ionic Liquids: An Electrochemical Atomic Force Microscopy Study

Details

• Personal Author:
  Singh PR ; Zeng X
• Description:
  Morphological changes of the highly oriented pyrolytic graphite (HOPG) surface during electrochemical intercalation-deintercalation process in pure ionic liquids (ILs) have been studied using electrochemical atomic force microscopy (EC-AFM). The results show that electrochemical intercalation of ions into HOPG is strongly dependent on anionic size of the ILs used. Up to 0.8 V versus the Ag quasi reference, drastic reversible morphological changes of HOPG surface during anion intercalation-deintercalation were observed in [BMIM][HSO4], whereas these changes were absent in [BMIM][N(Tf)2]. However, at and above 1.2 V, the HOPG surface degrades in both the ILs to form carbon nanoparticles. [Description provided by NIOSH]
• Subjects:
  Microbiology Occupational Health Safety
• Keywords:
  Electrochemical Analysis Electrochemical Reactions Electrochemistry Graphite Ion Transport Microscopic Analysis Nanoparticles
• ISSN:
  1932-7447
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Michigan ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  115
• Issue:
  35
• NIOSHTIC Number:
  nn:20059166
• Citation:
  J Phys Chem C 2011 Sep; 115(35):17429-17439
• Contact Point Address:
  Xiangqun Zeng, Department of Chemistry, Oakland University, Rochester, Michigan 48309, United States
• Email:
  zeng@oakland.edu
• CAS Registry Number:
  Graphite (CAS RN 7782-42-5)
• Federal Fiscal Year:
  2011
• NORA Priority Area:
  Mining
• Performing Organization:
  Oakland University, Rochester, Michigan
• Peer Reviewed:
  True
• Start Date:
  20090801
• Source Full Name:
  Journal of Physical Chemistry C
• End Date:
  20120731
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:dd6ed4692cab2c8244cc6fa8225b2bdfd94698e82f003274ff30caa6da41536c125edc822ac948b91ca1b26396593a881842fffa860fced53ad356f065e61119
• Download URL:
  https://stacks.cdc.gov/view/cdc/223466/cdc_223466_DS1.pdf
• File Type:
  [PDF - 7.02 MB ]