It turns out that when they’re in a hurry and space is limited, ions, like people, will find a way to cram in — even if that means defying nature’s norms. Recently published research from an international team of scientists, including Drexel University’s Yury Gogotsi, PhD, shows that the charged particles will actually forgo their “opposites attract” behavior, called Coulombic ordering, when confined in the tiny pores of a nanomaterial. This discovery could be a pivotal development for energy storage, water treatment and alternative energy production technologies, which all involve ions packing into nanoporous materials.
In their paper, which was recently published in the journal Nature Materials, the researchers explain how Coulombic ordering in liquid salts starts to break down when ions are confined in small spaces — specifically carbon pores less than a nanometer in diameter. And the narrower the pore, the less the ions adhere to Coulombic ordering. Read the full press release here.
Find the Nature Materials paper here.
5 of our papers published within the past year are currently among ISI Hot Papers (placed in the top 0.1% of papers in its academic field). 57 papers from our group are in the top 1% (ISI Highly Cited). Those are very impressive numbers showing the highest quality and great impact of the work done by the Nanomaterials Group.
By: Pelaz, Beatriz; Alexiou, Christoph; Alvarez -Puebla, Ramon A.; et al.
ACS NANO Volume: 11 Issue: 3 Pages: 2313-2381 Published: MAR 2017
Times Cited: 10
By: Anasori, Babak; Lukatskaya, Maria R.; Gogotsi, Yury
NATURE REVIEWS MATERIALS Volume: 2 Issue: 2 Article Number: UNSP 16098 Published: FEB 2017
Times Cited: 24 (from All Databases)
By: Shahzad, Faisal; Alhabeb, Mohamed; Hatter, Christine B.; et al.
SCIENCE Volume: 353 Issue: 6304 Pages: 1137-1140 Published: SEP 9 2016
Times Cited: 69 (from All Databases)
By: Lukatskaya, Maria R.; Dunn, Bruce; Gogotsi, Yury
NATURE COMMUNICATIONS Volume: 7 Article Number: 12647 Published: SEP 2016
Times Cited: 52 (from All Databases)
ADVANCED MATERIALS Volume: 28 Issue: 29 Special Issue: SI Pages: 6104-6135 Published: AUG 3 2016
Times Cited: 47 (from All Databases)
Two NMG Alumni are currently faculty at Jilin University in China. Assoc. Prof. Yu (Alex) Gao and Asst. Prof. Yohan Dall’Agnese are working on the China Nano initiative at Jilin in collaboration with Drexel University. Congratulations to our alumni!
While lithium-ion batteries, widely used in mobile devices from cell phones to laptops, have one of the longest lifespans of commercial batteries today, they also have been behind a number of recent meltdowns and fires due to short-circuiting in mobile devices. In hopes of preventing more of these hazardous malfunctions researchers at Drexel University have developed a recipe that can turn electrolyte solution — a key component of most batteries — into a safeguard against the chemical process that leads to battery-related disasters.
Read the full article here.
Drexel researchers have reported that adding nanodiamonds to the electrolyte solution in lithium batteries can prevent the formation of dendrites, the tendril-like deposits of ions that can grow inside a battery over time and cause hazardous malfunctions. (Photo courtesy of Drexel University and Tsinghua University).
Congratulations to PhD student, Tyler Mathis, for winning the Best Poster prize for Symposium 7 (Supercapacitors from Materials and Processes to Applications) during the ISE meeting last week.