Tag: Chemistry

Carbon Foam: The Key Ingredient of a Better Battery?

A lighter, greener, cheaper, longer-lasting battery. Who wouldn’t want that?

Tech researchers are working on it. Actually, their design is a twist on what’s called an asymmetric capacitor, a new type of electrical storage device that’s half capacitor, half battery. It may be a marriage made in heaven.

Capacitors store an electrical charge physically and have important advantages: they are lightweight and can be recharged (and discharged) rapidly and almost indefinitely. Plus, they generate very little heat, an important issue for electronic devices. However, they can only make use of about half of their stored charge.

Batteries, on the other hand, store electrical energy chemically and can release it over longer periods at a steady voltage. And they can usually store more energy than a capacitor. But batteries are heavy and take time to charge, and even the best can’t be recharged forever.

Enter asymmetric capacitors, which bring together the best of both worlds. On the capacitor side, energy is stored by electrolyte ions that are physically attracted to the charged surface of a carbon anode. Combined with a battery-style cathode, this design delivers nearly double the energy of a standard capacitor.

Now, Tech researchers have incorporated a novel material on the battery side to make an even better asymmetric capacitor.

Their cathode relies on nickel oxyhydroxide, the same material used in rechargeable nickel-cadmium or nickel-metal hydride batteries. “In most batteries that contain nickel oxyhydroxide, metallic nickel serves as a mechanical support and a current collector,” said chemistry professor Bahne Cornilsen, who has studied nickel electrodes for a number of years, initially with NASA support. A few years ago, the team had a chance to experiment with something different: Cornilsen suggested replacing the nickel with carbon foam.

Carbon foam has advantages over nickel. “It’s lighter and cheaper, so we thought maybe we could use it as a scaffold, filling its holes with nickel oxyhydroxide,” said Tony Rogers, associate professor of chemical engineering.

Carbon foam has a lot of holes to fill. “The carbon foam we are using has 72 percent porosity,” Rogers said. “That means 72 percent of its volume is empty space, so there’s plenty of room for the nickel oxyhydroxide. The carbon foam could also be made of renewable biomass, and that’s attractive.”

But how many times can you recharge their novel asymmetric capacitor? Nobody knows; so far, they haven’t been able to wear it out. “We’ve achieved over 127,000 cycles,” Rogers said.

Other asymmetric capacitors have similar numbers, but none have the carbon-foam edge that could make them even more desirable to consumers.

“Being lighter would give it a real advantage in handheld power tools and consumer electronics,” said Rogers. Hybrid electric vehicles are another potential market, since an asymmetric capacitor can charge and discharge more rapidly than a normal battery, making it useful for regenerative braking.

The group has applied for a patent on its new technology. Chemical engineering professor Michael Mullins is also a member of the research team. Graduate students contributing to the project are PhD graduate Matthew Chye and PhD student Wen Nee Yeo of the chemical engineering department and MS student Padmanaban Sasthan Kuttipillai and PhD student Jinjin Wang of the chemistry department.

The research is funded by the US Department of Energy, the Michigan Universities Commercialization Initiative, the Michigan Tech Research Excellence Fund and the Michigan Space Grant Consortium.

by Marcia Goodrich, senior writer
Published in Tech Today

New theses and dissertations available in the Library

The Graduate School is pleased to announce new theses and dissertations are now available in the J.R. van Pelt and Opie Library from the following programs:

  • Chemical Engineering
  • Chemistry
  • Civil Engineering
  • Electrical Engineering
  • Environmental Engineering
  • Forest Ecology and Management
  • Geological Engineering
  • Geology
  • Geophysics
  • Industrial Archaeology
  • Mathematical Sciences
  • Mechanical Engineering
  • Mechanical Engineering-Engineering Mechanics

Department of Defense SMART

The Science, Mathematics And Research for Transformation (SMART) Scholarship for Service Program has been established by the Department of Defense (DoD) to support undergraduate and graduate students pursuing degrees in Science, Technology, Engineering and Mathematics (STEM) disciplines.

Eligibility:

  • a U.S. citizen at time of application,
  • 18 years of age or older as of August 1, 2012,
  • able to participate in summer internships at DoD laboratories,
  • willing to accept post-graduate employment with the DoD,
  • a student in good standing with a minimum cumulative GPA of 3.0 on a 4.0 scale (as calculated by the SMART application) and,
  • pursuing an undergraduate or graduate degree in one of the disciplines listed on the About SMART page.

Benefits:

  • Full tuition and education related fees (does not include items such as meal plans, housing, or parking)
  • Cash award paid at a rate of $25,000 – $41,000 depending on prior educational experience (may be prorated depending on award length)
  • Paid summer internships
  • Health Insurance reimbursement allowance up to $1,200 per calendar year
  • Book allowance of $1,000 per academic year
  • Mentoring
  • Employment placement after graduation

Travel Grants Awarded

The Biotechnology Research Center has announced the recipients of its spring travel grants:

  • Graduate student Adam Abraham (Mechanical Engineering): $500 toward a poster presentation at the American Society of Mechanical Engineers–Summer Bioengineering Conference to be held in Farmington, Pa., in June.
  • Undergraduate student Emily Brown (Biomedical Engineering): $500 toward a poster presentation at the Society for Biomaterials Annual Conference held in Orlando, Fla., in April.
  • Graduate student Ning Chen (Chemistry): $500 toward a poster presentation at the 241st ACS National Meeting and Exposition held in Anaheim, Calif., in March.
  • Graduate student Stephanie Hamilton (Biomedical Engineering): $500 toward a poster presentation at the American College of Sport’s Medicine Annual Meeting to be held in Denver, Colo., in June.
  • Graduate student Weilue He (Biological Sciences): $500 toward a poster presentation at the 2011 Association for Research in Vision & Ophthalmology held in Fort Lauderdale, Fla., in May.
  • Graduate student Connor McCarthy (Materials Science and Engineering): $500 toward a poster presentation at the Society for Biomaterials Annual Conference held in Orlando, Fla., in April.
  • Graduate student Kasra Momeni (Mechanical Engineering-Engineering Mechanics): $500 toward a podium presentation at the MRS Spring 2011 Conference held in San Francisco, Calif., in April.
  • Graduate student John Moyer (Mechanical Engineering): $500 toward a poster presentation at the American Society of Mechanical Engineers–Summer Bioengineering Conference to be held in Farmington, Pa. in June.
  • Graduate student Anahita Pakzad (Mechanical Engineering-Engineering Mechanics): $500 toward a podium presentation at the 241st ACS National Meeting and Exposition held in Anaheim, Calif., in March.
  • Graduate student Srinivasa Rao Sripathi (Biological Sciences): $500 toward a poster presentation at the 2011 Association for Research in Vision & Ophthalmology held in Fort Lauderdale, Fla., in May.

Published in Tech Today.

New theses and dissertations available in the Library

The Graduate School is pleased to announce new theses and dissertations are now available in the J.R. van Pelt and Opie Library from the following programs:

  • Chemistry
  • Electrical Engineering
  • Engineering Mechanics
  • Forest Science
  • Rhetoric and Technical Communication

Colina Dutta
Master of Science in Chemistry
Co-advisors: Dario J Stacchiola and Gerard T Caneba
Thesis title: Ultrasonic Dispersion of Single Walled Carbon Nanotubes and Cellulose

Yinfei Fu
Doctor of Philosophy in Electrical Engineering
Advisor: Zhi Tian
Dissertation title: Multi-Target Tracking and Localization in Distributed Wireless Sensor Networks

Nicholas Mastricola
Master of Science in Engineering Mechanics
Advisor: Ossama Omar Abdelkhalik
Thesis title: Quantification of Relativistic Perturbation Forces on Spacecraft Trajectories

Sara Robinson
Doctor of Philosophy in Forest Science
Advisor: Peter E Laks
Dissertation title: The Scientific, Artistic, and Practical Implications of Sub-lethal Fungicide Levels in Wood Exposed to Fungi

Cynthia Weber
Doctor of Philosophy in Rhetoric and Technical Communication
Advisor: Jennifer Daryl Slack
Dissertation title: In Defense of a Liberal Education: The Language and Politics of Academic Freedom

National Institutes of Health (NIH) Ruth Kirschstein National Research Service Award (NRSA) F31 Predoctoral Fellowships

Deadline: 2011 deadlines: 4/8, 8/8, and 12/8

The objective of National Institutes of Health (NIH) Ruth L. Kirschstein National Research Service Awards programs is to help ensure that a diverse pool of highly trained scientists are available in adequate numbers and in appropriate research areas to address the Nation’s biomedical, behavioral, and clinical research needs.

The purpose of the predoctoral fellowship (F31) award is to provide support for promising doctoral candidates who will be performing dissertation research and training in scientific health-related fields relevant to the missions of the participating NIH Institutes during the tenure of the award. The Kirschstein-NRSA for Individual Predoctoral Fellows will provide up to five years of support for research training which leads to the PhD or equivalent research degree, the combined MD/PhD degree, or another formally combined professional degree and research doctoral degree in the biomedical, behavioral, or clinical sciences.

Applicants for the Kirschstein-NRSA F31 award must propose a dissertation research project and training program that fall in a research area within the scientific mission of the participating Institutes. The proposed predoctoral research training must offer an opportunity to enhance the fellow’s understanding of the health-related sciences and extend his/her potential for a productive, independent research career. The training should provide the applicant with the opportunity to interact with members of the scientific community at appropriate scientific meetings and workshops (including NIH-sponsored meetings, where available). The application should document the need for the proposed research training and the expected value of the proposed fellowship experience as it relates to the individual’s goals for a career as an independent researcher.

Each NIH Institute and Center (IC) has a unique scientific purview and different program goals and initiatives that evolve over time. Prospective Fellowship Applicants are encouraged to contact the relevant NIH staff for IC-specific programmatic information: Table of Institute and Center Contacts.

Citizenship: By the time of award, the individual applicant must be a citizen or a non-citizen national of the United States or have been lawfully admitted for permanent residence.

Degree Requirements: A Fellowship Applicant must have a baccalaureate degree and be currently enrolled in a PhD or equivalent research degree program (e.g., EngD, DNSc, Dr PH, DSW, PharmD, PsyD, ScD), a formally combined MD/PhD program, or other combined professional/clinical and research doctoral (e.g., DDS/PhD) in the biomedical, behavioral, or clinical sciences at an accredited domestic or foreign institution. With the exception of the combined degree programs described above, the Kirschstein-NRSA F31 may not be used to support studies leading to the MD, DDS, or other clinical, health-professional training (e.g., DC, DMD, DNP, DO, DPM, DVM, ND, OD, AuD). Neither may these awards be used to support the clinical years of residency training.

Students seeking support for pursuit of a combined degree program (e.g. MD/PhD, or DO/PhD, or DDS/PhD) may be eligible to apply for the Ruth L. Kirschstein National Research Service Awards for Individual Predoctoral MD/PhD Fellows (F30) (PA-09-207).

Duration of Support: Individuals may typically receive up to 5 years of aggregate Kirschstein-NRSA support at the predoctoral level.

Participating Institutes & Centers:

National Institute on Aging (NIA), http://www.nia.nih.gov/
National Institute on Alcohol Abuse and Alcoholism (NIAAA), http://www.niaaa.nih.gov
National Institute on Deafness and Other Communication Disorders (NIDCD), http://www.nidcd.nih.gov/
National Institute of Dental and Craniofacial Research (NIDCR) http://www.nidcr.nih.gov/
National Institute on Drug Abuse (NIDA), http://www.nida.nih.gov/
National Institute of Mental Health (NIMH), http://www.nimh.nih.gov
National Institute of Neurological Disorders and Stroke (NINDS), http://www.ninds.nih.gov
National Center for Complementary and Alternative Medicine (NCCAM), http://www.nccam.nih.gov
Office of Dietary Supplements (ODS), http://ods.od.nih.gov/

Estimated Stipend: $21,180.  (Note: The sponsoring institution is allowed to provide funds to the fellow in addition to the stipends paid by the NIH in accordance with its own formally established policies governing stipend support.)

Application Procedure: To submit an application, applicants should access the FOA via http://www.grants.gov/applicants/apply_for_grants.jsp and follow Steps 1-4.  Applications must be submitted electronically.

Application Guidelines: SF424 (R&R) Individual Fellowship Application Guide

Contact Information: Applicants should refer to the Table of Institute and Center Contacts to obtain participating NIH Institute scientific/research contact information.

Url: http://grants1.nih.gov/grants/guide/pa-files/PA-09-208.html


Spring 2011 Finishing Fellowship Recipients Announced

The Graduate School is pleased to announce the following students have earned Finishing Fellowships to help complete their doctoral studies:

  • Amalia L. Anderson, Physics
  • Ning Chen, Chemistry
  • Linsheng Feng, Chemistry
  • Heather L. Jordan, Rhetoric and Technical Communication
  • Partha P. Pal, Physics
  • Radheshyam Tewari, Mechanical Engineering-Engineering Mechanics
  • Helen E. Thomas, Geology
  • Wenjie Xu, Electrical Engineering

The fellowships are made possible by the support of the Graduate School.

Details on the summer 2011 competition may be found online, as well as photographs of our recipients.

Divising of Analytical Chemistry Fellowship Program

The American Chemical Society Division of Analytical Chemistry Graduate Fellowship Program is designed to encourage basic research in the field of analytical chemistry, to promote the growth of analytical chemistry in academic institutions and industry, and to provide recognition of future leaders in the field of analytical chemistry.  The program has endeavored to be a model of the benefits of cooperation between the academic and industrial communities, with chemical companies employing Ph.D. analytical chemists sponsoring the fellowships for outstanding analytical graduate students.

The Graduate Fellowship Committee of the ACS Division of Analytical Chemistry, which is comprised of representatives from the sponsoring companies, analytical faculty from undergraduate institutions, and scientists from national laboratories, evaluate the applications and make the fellowship awards.  Both nine-month ($21,000) and summer ($7,000) fellowships are available.

Eligibility criteria

The applicant must be a full-time student working toward a Ph.D. in analytical chemistry and must have completed the second year of graduate study by the time the fellowship period begins.  The applicant’s research supervisor must be a member of the American Chemical Society Division of Analytical Chemistry. Only one nomination per research supervisor will be accepted. Summer Fellowships must begin on June 1, 2011, therefore applicants for summer 2011 fellowships must not have completed their thesis research before September 1, 2011. Nine-month fellowships may begin on June 1, July 1, August 1 or September 1, 2011, therefore applicants for 2011-2012 nine-month fellowships must not have completed their thesis research before March 1, 2012. Applicants for awards in previous years are encouraged to reapply. Previous nine-month fellowship recipients, however, are not eligible for a second award.

Applicants must demonstrate outstanding research ability and accomplishment, as evidenced by peer-reviewed publications in analytical chemistry. Consequently, fellowships are normally awarded to students in their third or fourth years of graduate study when they have established a publication record.

Application process

Students must submit an application package consisting of a nomination form from the research advisor, an application describing previous accomplishments and the proposed research during the fellowship period, and all undergraduate and graduate transcripts.  In addition, students must arrange to have three letters of recommendation submitted on their behalf.

Application package (due December 10, 2010):

  1. 1)the completed nomination form from the research supervisor (1 page, available for download here)
  2. 2)the completed application form (5 pages, available for download here)
  3. 3)complete undergraduate and graduate transcripts

Please contact Jodi Lehman (jglehman@mtu.edu) or (487-2875) if interested in applying.

DOD SMART Visit Canceled

Due to a family emergency, Dr. Knox Millsaps needed to cancel his visit to Michigan Tech next week.  He apologizes for any inconvenience and encourages anyone interested in the DOD SMART program to contact him directly (millsaps@nps.edu) with any questions or concerns. 

On Tuesday, October 19th there will still be a general presentation about the SMART scholarship by Jodi Lehman, which faculty, staff, and students are invited to attend.  The luncheon for Wednesday, October 20th has been canceled.  The presentation will be from 12:00-1:00 in the Memorial Union Ballroom B1. 

Jodi is also available to work with students to identify a national lab that fits with SMART applicants’ field of interest and to mentor students in developing a competitive proposal.  She is also available to present and answers questions about the SMART program to classes, departments, and student organizations.   

Again, we apologize for any inconvenience this may have caused and thank you for your interest and support in helping Michigan Tech students understand more about the DOD SMART program.  We also thank those individuals and departments who went above and beyond to provide Dr. Millsaps with a campus visit that highlights Michigan Tech’s unique attributes related to DOD SMART fields. 

The DOD SMART visit will be rescheduled for spring.  Please contact Jodi Lehman (jglehman@mtu.edu) with any questions.