2013-2014 Academic Year NSF REU Program College of Engineering and Applied Science University of Cincinnati Cincinnati, Ohio Project #8 (Fall) and Project #8.5 (Spring): Synthesis and Surface Modification of Carbon Nanotubes and Graphene for Advanced Applications Faculty Mentor: Dr. Vesselin Shanov Application Deadline: April 17, 2013 Outline for a 2-Phase Project Description for AY-REU 2013-2014 Lab Name: Nanoworld Lab. Nanoworld is a large interdisciplinary teaching and research laboratory at the College of Engineering. In this establishment focus is on 2 thrust areas: (a) synthesis, processing, and characterization of Carbon Nanotubes (CNT) and other nanomaterials; and (b) design and fabrication of nanodevices and sensors for structural health monitoring and biomedical applications. Nanoworld is part of the Institute for Nanoscale Science and Technology and provides an outstanding mechanism for faculty members and students of the Colleges of Engineering, Medicine, and Arts and Sciences to share knowledge and experiences. The long term goals of Nanoworld Lab is to integrate nanotechnology into the teaching curricula at University of Cincinnati, retain undergraduate students, develop interest in students to pursue graduate education in engineering, contribute to the Nano-Bio research at UC, foster development of research programs that use nanotechnology, create new versatile materials, sensors, and devices and implement the same into applications. Nanoworld is the site for much of the experimental work carried out in the course Experimental Nanoscale Science and Technology. The Lab has gained national and international reputation in the development of nanoscale materials and devices, and in the integration of nanotechnology into research and teaching. Nanoworld participates in several educational programs, such as Men in Engineering, Women in Engineering (high school student tours); Emerging Ethnic Engineers (undergraduate minority students tours); Ohio Space Grants, Graduate Summer Scholarships, CO-OP and Internships, Women in Science and Engineering WISE (undergraduate and graduate research). Students in the labs work and conduct research on synthesis, processing and application in devices of CNT arrays for space and medicine. Overall Project Goals and Description: This REU project will explore plasma functionalization of Carbon Nanotube (CNT) materials and their doping and coating with polymer films. The proposed research will help to improve the properties of CNT thread, sheet, yarns, and to synthesize a new carbon material-graphene. These materials will find important applications in aerospace and defense industries as light weight and strong materials replacing metals. Further, CNTs and grephene are successfully used for reinforcing of advanced polymer composites and for new electronic devices. It is anticipated that 1 the electrical, thermal, and mechanical properties of these composites may be improved substantially by surface modification and coating. The REU student will explore “dry functionalization” using cold plasma state. Plasma functionalization is clean, efficient, lowtemperature approach using a glow discharge. They will also synthesize and characterize graphene as advanced material for energy storage. Phase 1 (Fall Semester): The objective of the proposed research for the Fall Semester is to investigate the plasma treatment of CNT at atmospheric pressure using the state-of-the-art facility shown in Fig. 1. The effect of the process parameters such as gas composition, plasma power and the nature of the CNT will be studied. Figure 1. RF Atmospheric pressure plasma source Atmoflow 400D from Surfx: with a robotic arm, power supply and plasma torch. Phase 2 (Spring Semester): The objective of the REU research for the Spring Semester is to study growing of graphene for energy storage application. The Chemical Vapor Deposition (CVD) reactor is available for this research, and encouraging preliminary results are obtained by graduate students in NanoworldFig. 2. (a) (b) (c) Figure 2. CVD reactor at UC-(a); SEM image-(b) and TEM image-(c) of graphene synthesized by CVD at Nanoworld-(b). The REU students will work with graduate students and a post doc and their results will be published with their participation as co-authors. This will enrich their academic experience. Faculty Mentor: Co-Mentor: Dr. Vesselin Shanov, Associate Professor Dr. Noe Alvarez, Post-Doctoral Fellow School of EEBME, 580 ERC, UC School of EEBME, UC Tel: (513) 556-461, Email: vesselin.shanov@uc.edu Email: alvarene@UCMAIL.UC.EDU 2