Nanowire-Paper Offers Strength, Flexibility
FAYETTEVILLE, Ark. — University of Arkansas researchers have created assemblies of nanowires that show potential in applications such as armor, flame-retardant fabric, bacteria filters, oil cracking, controlled drug release, decomposition of pollutants and chemical warfare agents.
This two-dimensional “paper” can be shaped into three-dimensional devices. It can be folded, bent and cut, or used as a filter, yet it is chemically inert, remains robust and can be heated up to 700 degrees Celsius.
“Humans have used paper made from natural fibers for thousands of years,” said Z. Ryan Tian, assistant professor of chemistry and biochemistry in the J. William Fulbright College of Arts and Sciences. “With this technology, we are entering a new era.” The researchers published their findings in the Journal of Physical Chemistry B.
Tian and his team used a hydrothermal heating process to create long nanowires out of titanium dioxide and from there created free-standing membranes. The resulting material is white in color and resembles regular paper. Further, the material can be cast into different three-dimensional shapes, with different functions. The researchers have created tubes, bowls and cups using this process. These three-dimensional hollow objects can be manipulated by hand and trimmed with scissors, the researchers report.
The university has applied for patent protection on the process used to create the free-standing membranes for filtration and catalysis, and is looking for industrial partners to license and commercialize various applications of the nanopaper technology.
Nanoparticles composed of nickel and iron increase the efficiency and cost-effectiveness of water electrolysis in hydrogen fuel production.
Pryor Center Presents 'The Long Southern Strategy: How Chasing Voters in the White South Changed American Politics'
Angie Maxwell, director of the Diane Blair Center of Southern Politics and Society will discuss the 50-year political strategy that turned the South from blue to red.
The Office of Equal Opportunity and Compliance invites the campus community to attend the following sessions to raise awareness about epilepsy and seizures.
Melody Herr, head of the Office of Scholarly Communication, will discuss "Crafting Your Book Proposal and Attracting a Publisher," 7:45-9 a.m. Tuesday, April 2.
Please RSVP before 4 p.m. March 21 to be one of eight faculty members selected