eprintid: 10021 rev_number: 4 userid: 6 dir: disk0/00/01/00/21 datestamp: 2011-11-10 20:08:00 lastmod: 2016-11-15 13:53:05 status_changed: 2011-11-10 20:08:00 type: thesis_degree metadata_visibility: show contact_email: hux4@pitt.edu item_issues_count: 0 eprint_status: archive creators_name: Xiong, Hui creators_email: hux4@pitt.edu creators_id: HUX4 title: Development and Applications of Nanofabricated Electrodes for Scanning Electrochemical Microscopy ispublished: unpub divisions: sch_as_chemistry full_text_status: public keywords: nanofabricated electrode; SECM abstract: Over the last decade, dramatic progresses in fabrication and synthesis of nanomaterials have enabled reproducible and controlled production of nanometer-sized structures with desired size, shape, physical and chemical properties. Nanostructures created in this fashion are essential building blocks of complex nanosystems for various applications. In particular, electronically conductive nanostructures are attractive candidates as electrode materials for both fundamental studies and electrochemical applications in fields such as sensors, energy storage, functional molecular electronic devices, and electrocatalysis.In my Ph.D. work, I explored frontiers in nanoscale electrochemistry utilizing novel electrode systems based on conductive nanostructures with shape and size controlled by advanced nanofabrication/synthesis methods. Specifically, I developed a new methodology based on scanning electrochemical microscopy (SECM) to discover that an individual one-dimensional nanostructure such as a metal nanoband and a single-walled carbon nanotube serves as a highly reactive electrode. This discovery is of great importance for future applications of the novel nanomaterials. Moreover, by integrating modern nanofabrication methods, I created nanometer-sized electrodes with controlled size and geometry. The significance of this achievement is that better spatial resolution will be obtainable by utilizing these nanofabricated electrodes as probes of SECM. date: 2008-01-29 date_type: completed institution: University of Pittsburgh refereed: TRUE etdcommittee_type: committee_chair etdcommittee_type: committee_member etdcommittee_type: committee_member etdcommittee_type: committee_member etdcommittee_name: Amemiya, Shigeru etdcommittee_name: Michael, Adrian etdcommittee_name: Yun, Minhee etdcommittee_name: Weber, Stephen etdcommittee_email: amemiya@pitt.edu etdcommittee_email: amichael@pitt.edu etdcommittee_email: yunmh@engr.pitt.edu etdcommittee_email: sweber@imap.pitt.edu etdcommittee_id: AMEMIYA etdcommittee_id: AMICHAEL etdcommittee_id: MIY16 etdcommittee_id: SWEBER etd_defense_date: 2007-12-05 etd_approval_date: 2008-01-29 etd_submission_date: 2007-12-04 etd_access_restriction: immediate etd_patent_pending: FALSE assigned_doi: doi:10.5195/pitt.etd.2011.10021 thesis_type: dissertation degree: PhD committee: Shigeru Amemiya (amemiya@pitt.edu) - Committee Chair committee: Adrian Michael (amichael@pitt.edu) - Committee Member committee: Minhee Yun (yunmh@engr.pitt.edu) - Committee Member committee: Stephen Weber (sweber@imap.pitt.edu) - Committee Member etdurn: etd-12042007-153227 other_id: http://etd.library.pitt.edu/ETD/available/etd-12042007-153227/ other_id: etd-12042007-153227 citation: Xiong, Hui (2008) Development and Applications of Nanofabricated Electrodes for Scanning Electrochemical Microscopy. Doctoral Dissertation, University of Pittsburgh. (Unpublished) document_url: http://d-scholarship-dev.library.pitt.edu/10021/1/hxiong-122007%27%3A%3A.pdf