Nanotechnology Now

Our NanoNews Digest Sponsors
Heifer International



Home > Press > Development of high-durability single-atomic catalyst using industrial humidifier: Identification of the operating mechanism of cobalt-based single-atomic catalyst and development of a mass production process. Utilization for catalyst development in various fields including fuel

(a) single-atomic catalyst synthesis process using humidifier method, (b) SEM image, (c) cobalt element mapping image, (d) high-resolution STEM image of cobalt single-atomic catalyst

CREDIT
Korea Institute of Science and Technology (KIST)
(a) single-atomic catalyst synthesis process using humidifier method, (b) SEM image, (c) cobalt element mapping image, (d) high-resolution STEM image of cobalt single-atomic catalyst CREDIT Korea Institute of Science and Technology (KIST)

Abstract:
Fuel cell electric vehicles (FCEVs) are an eco-friendly means of transportation that will replace internal combustion locomotives. FCEVs offer several advantages such as short charging time and long mileage. However, the excessive cost of platinum used as a fuel cell catalyst leads to limited supply of FCEVs. There has been extensive research on non-precious metal catalysts such as iron and cobalt to replace platinum; however, it is still challenging to find substitutes for platinum due to low performance and low stability of non-precious metal catalysts.

Development of high-durability single-atomic catalyst using industrial humidifier: Identification of the operating mechanism of cobalt-based single-atomic catalyst and development of a mass production process. Utilization for catalyst development in various fields including fuel

Sejong, Korea | Posted on May 13th, 2022

The research team led by Dr. Sung Jong Yoo of the Hydrogen·Fuel Cell Research Center at Korea Institute of Science and Technology (KIST, President Seok Jin Yoon) conducted joint research with professor Jinsoo Kim of Kyung Hee University and professor Hyung-Kyu Lim of Kangwon National University; they announced that they have developed a single atomic cobalt-based catalyst with approximately 40% improved performance and stability compared to contemporary cobalt nanoparticle catalysts.

Conventional catalysts are typically synthesized via pyrolysis, wherein transition metal precursors and carbon are mixed at 700–1000℃. However, due to metal aggregation and a low specific surface area, the catalysts obtained through this process had a limited activity. Accordingly, researchers have focused on synthesizing single-atomic catalysts; however, previously reported single-atomic catalysts can only be produced in small quantities because the chemical substances and synthesis methods used varied depending on the type of the synthesized catalyst . Therefore, research has focused on performance improvement of the catalyst rather than the manufacturing process.

To address this problem, the spray pyrolysis method was implemented using an industrial humidifier. Droplet-shaped particles were obtained by rapidly heat-treating the droplets obtained from a humidifier. This can enable mass production through a continuous process, and any metals can be easily produced into particles. The materials used for the synthesis of metal particles should be water-soluble because the particles are made through an industrial humidifier.

It was confirmed that the cobalt-based single-atomic catalysts developed through this process exhibit excellent stability as well as fuel cell performance and are 40% superior compared to conventional cobalt catalysts. Cobalt-based catalysts also cause side reactions in fuel cells; however, computational science has shown that catalysts manufactured via spray pyrolysis lead to forward reactions in fuel cells.

Dr. Yoo clarified, “Through this research, a process that can enable considerable improvement in the mass production of cobalt-based single-atomic catalysts has been developed, and the operating mechanism of cobalt-based catalysts has been elucidated via close analyses and computational science. These results are expected to serve as indicators for future research on cobalt catalysts.” They also added, “We plan to expand the scope of future research to explore not only catalysts for fuel cells, but also environmental catalysts, water electrolysis, and battery fields.”

####

About National Research Council of Science & Technology
KIST was established in 1966 as the first government-funded research institute to establish a national development strategy based on science and technology and disseminate various industrial technologies to develop major industries. KIST is now raising Korean science and technology status through world-leading innovative research and development. For more information, please visit our website at https://eng.kist.re.kr/kist_eng_renew/

This research was supported by the KIST Institutional Program, Climate Change Technology Development Project Nano·Material technology development project, which are funded by the Ministry of Science and ICT (Minister, Hyesook Lim) The research results were published in the latest issue of Applied Catalysis B: Environmental (IF: 19.503 JCR top 0.926%), an international journal in the field of energy and the environment.

For more information, please click here

Contacts:
Mira Lee
National Research Council of Science & Technology

Office: 44-287-7374
Cell: 01-9800-1732
Expert Contacts

Dr. Yoo, Sung Jong
Korea Institute of Science and Technology (KIST)

Office: +82-2-958-5260
Lee, Yeeun (PR Department)
Korea Institute of Science and Technology (KIST)

Office: +82-2-958-6929

Copyright © National Research Council of Science & Technology

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

ARTICLE TITLE

Related News Press

News and information

Virginia Tech physicists propose path to faster, more flexible robots: Virginia Tech physicists revealed a microscopic phenomenon that could greatly improve the performance of soft devices, such as agile flexible robots or microscopic capsules for drug delivery May 17th, 2024

Gene therapy relieves back pain, repairs damaged disc in mice: Study suggests nanocarriers loaded with DNA could replace opioids May 17th, 2024

Shedding light on perovskite hydrides using a new deposition technique: Researchers develop a methodology to grow single-crystal perovskite hydrides, enabling accurate hydride conductivity measurements May 17th, 2024

Oscillating paramagnetic Meissner effect and Berezinskii-Kosterlitz-Thouless transition in cuprate superconductor May 17th, 2024

Chemistry

What heat can tell us about battery chemistry: using the Peltier effect to study lithium-ion cells March 8th, 2024

Two-dimensional bimetallic selenium-containing metal-organic frameworks and their calcinated derivatives as electrocatalysts for overall water splitting March 8th, 2024

Nanoscale CL thermometry with lanthanide-doped heavy-metal oxide in TEM March 8th, 2024

Discovery of new Li ion conductor unlocks new direction for sustainable batteries: University of Liverpool researchers have discovered a new solid material that rapidly conducts lithium ions February 16th, 2024

Possible Futures

Advances in priming B cell immunity against HIV pave the way to future HIV vaccines, shows quartet of new studies May 17th, 2024

International research team uses wavefunction matching to solve quantum many-body problems: New approach makes calculations with realistic interactions possible May 17th, 2024

Aston University researcher receives £1 million grant to revolutionize miniature optical devices May 17th, 2024

Gene therapy relieves back pain, repairs damaged disc in mice: Study suggests nanocarriers loaded with DNA could replace opioids May 17th, 2024

Discoveries

Virginia Tech physicists propose path to faster, more flexible robots: Virginia Tech physicists revealed a microscopic phenomenon that could greatly improve the performance of soft devices, such as agile flexible robots or microscopic capsules for drug delivery May 17th, 2024

Diamond glitter: A play of colors with artificial DNA crystals May 17th, 2024

Finding quantum order in chaos May 17th, 2024

Advances in priming B cell immunity against HIV pave the way to future HIV vaccines, shows quartet of new studies May 17th, 2024

Announcements

Virginia Tech physicists propose path to faster, more flexible robots: Virginia Tech physicists revealed a microscopic phenomenon that could greatly improve the performance of soft devices, such as agile flexible robots or microscopic capsules for drug delivery May 17th, 2024

Diamond glitter: A play of colors with artificial DNA crystals May 17th, 2024

Finding quantum order in chaos May 17th, 2024

Oscillating paramagnetic Meissner effect and Berezinskii-Kosterlitz-Thouless transition in cuprate superconductor May 17th, 2024

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers/Posters

International research team uses wavefunction matching to solve quantum many-body problems: New approach makes calculations with realistic interactions possible May 17th, 2024

Gene therapy relieves back pain, repairs damaged disc in mice: Study suggests nanocarriers loaded with DNA could replace opioids May 17th, 2024

Shedding light on perovskite hydrides using a new deposition technique: Researchers develop a methodology to grow single-crystal perovskite hydrides, enabling accurate hydride conductivity measurements May 17th, 2024

Oscillating paramagnetic Meissner effect and Berezinskii-Kosterlitz-Thouless transition in cuprate superconductor May 17th, 2024

Energy

Development of zinc oxide nanopagoda array photoelectrode: photoelectrochemical water-splitting hydrogen production January 12th, 2024

Shedding light on unique conduction mechanisms in a new type of perovskite oxide November 17th, 2023

Inverted perovskite solar cell breaks 25% efficiency record: Researchers improve cell efficiency using a combination of molecules to address different November 17th, 2023

The efficient perovskite cells with a structured anti-reflective layer – another step towards commercialization on a wider scale October 6th, 2023

Water

Two-dimensional bimetallic selenium-containing metal-organic frameworks and their calcinated derivatives as electrocatalysts for overall water splitting March 8th, 2024

Computational system streamlines the design of fluidic devices: This computational tool can generate an optimal design for a complex fluidic device such as a combustion engine or a hydraulic pump December 9th, 2022

Taking salt out of the water equation October 7th, 2022

Scientists capture a ‘quantum tug’ between neighboring water molecules: Ultrafast electrons shed light on the web of hydrogen bonds that gives water its strange properties, vital for many chemical and biological processes July 8th, 2022

Battery Technology/Capacitors/Generators/Piezoelectrics/Thermoelectrics/Energy storage

What heat can tell us about battery chemistry: using the Peltier effect to study lithium-ion cells March 8th, 2024

Two-dimensional bimetallic selenium-containing metal-organic frameworks and their calcinated derivatives as electrocatalysts for overall water splitting March 8th, 2024

Discovery of new Li ion conductor unlocks new direction for sustainable batteries: University of Liverpool researchers have discovered a new solid material that rapidly conducts lithium ions February 16th, 2024

A battery’s hopping ions remember where they’ve been: Seen in atomic detail, the seemingly smooth flow of ions through a battery’s electrolyte is surprisingly complicated February 16th, 2024

Fuel Cells

Current and Future Developments in Nanomaterials and Carbon Nanotubes: Applications of Nanomaterials in Energy Storage and Electronics October 28th, 2022

The “dense” potential of nanostructured superconductors: Scientists use unconventional spark plasma sintering method to prepare highly dense superconducting bulk magnesium diboride with a high current density October 7th, 2022

New iron catalyst could – finally! – make hydrogen fuel cells affordable: Study shows the low-cost catalyst can be a viable alternative to platinum that has stymied commercialization of the eco-friendly fuel for decades because it’s so expensive July 8th, 2022

Scavenger nanoparticles could make fuel cell-powered vehicles a reality April 1st, 2022

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project