GMS is a three-dimensional graphene material featuring a sponge-like 3D structure with a shell thickness of a single carbon atom. As it achieves a balance of porosity, conductivity, corrosion resistance, and flexibility, this innovative carbon material may be key to overcoming notorious carbon material limitations resulting from trade-offs between longevity and performance.
The flexibility of GMS is particularly remarkable. GMS elastically deforms like rubber, defying the conventional wisdom of carbon materials as rigid. 3DC is the only entity in the world developing elastic carbon materials.
・Shell thickness of only one carbon atom → A large specific surface area on par with activated
carbon
・Contains many internal nanopores → Capable of retaining large volumes of active
・materialsExceptionally small number of edge sites (starting points for chemical reactions) → Incredibly high oxidation resistance and reduced degradation
・Formed from high-quality graphene → High conductivity matching that of carbon black
・Offers sponge-like mechanical flexibility → Elastically deforms like rubber
Methane is a raw material of GMS. Hydrogen occurs as a byproduct of the methane-to-GMS conversion process. This hydrogen is a CO2-free turquoise hydrogen (hydrogen produced through methane pyrolysis).
In other words, GMS manufacturing processes are eco-friendly as they convert methane, a potent greenhouse gas, into hydrogen fuel through environmentally friendly methods. Manufacturing GMS can substantially reduce carbon footprints compared to directly burning methane.
As a new method of using methane, GMS manufacturing is positioned to be a truly excellent process for a decarbonized society.
3DC is conducting joint research on lithium-ion batteries with following experts:
Professor Naoaki Yabuuchi (Yokohama National University, Japan)
[Press Release] 3DC Initiates Joint Research with Professor Yabuuchi of Yokohama National University, Renowned for Leading Research on Positive Electrode Materials for Lithium-Ion BatteriesProfessor Yuki Yamada (Osaka University, Japan)
[Press Release] 3DC Initiates Joint Research with Professor Yamada of Osaka University, Renowned for His Achievements in High-Concentration Electrolytes for Lithium-Ion BatteriesWe plan to provide GMS for electrodes in not only lithium-ion batteries but also next-generation batteries, including all-solid-state, air, and lithium-sulfur batteries. There is much anticipation for GMS applications to open the door for higher performance and boosted longevity in next-generation batteries.
Nano-Confinement of Insulating Sulfur in the Cathode Composite of All-Solid-State Li–S Batteries Using Flexible Carbon Materials with Large Pore Volumes
Edge-Site-Free and Topological-Defect-Rich Carbon Cathode for High-Performance Lithium-Oxygen Batteries
Hierarchically Porous and Minimally Stacked Graphene Cathodes for High-Performance Lithium–Oxygen Batteries
3DC is conducting joint research on all-solid-state batteries with following expert:
Professor Shinya Machida (Konan University, Japan)
[Press Release] 3DC Initiates Joint Research with Professor Machida of Konan University, One of Japan’s Leading Researchers in Solid-State BatteriesSince electric double-layer capacitors (EDLC) physically attract and store electricity, they outperform batteries in terms of high output and longevity. However, the low energy density of EDLCs has been an issue for many years.With its large specific surface area and resistance to degradation, GMS is perfect for EDLC electrodes. Using GMS allows EDLC capacitance to be maintained while improving operating voltage. This means that EDLCs can be manufactured to far surpass conventional energy densities.
4.4 V supercapacitors based on super-stable mesoporous carbon sheet made of edge-free graphene walls
3DC has been selected for a grant from the Small and Medium Enterprise Agency for our capacitor business, amounting to approximately 300 million yen over three fiscal years.
For more details, please refer to the following news article.
The production of green hydrogen using water electrolysis equipment is a crucial factor in realizing a decarbonized society. Water electrolysis equipment anodes ideally use catalyst supports offering high conductivity and oxidation resistance under high voltage. Unfortunately, there has been no such catalyst support up until now. Catalysts could not be highly dispersed (requiring greater volumes of catalysts) without the ability to use catalyst supports for water electrolysis equipment anodes.
Carbon supports have conventionally been used in fuel cell electrodes but suffered from insufficient resistance to high voltage. While the high-voltage resistance of carbon supports can be improved by firing them, doing so significantly reduces surface area. The surface area reduction has meant that fired carbon supports cease fulfilling their role as supports that highly disperse catalysts.
In contrast, GMS is a unique carbon material that maintains its porosity (and high specific surface area) even when fired and offers exceptional high-voltage resistance. These attributes make GMS a promising catalyst support for water electrolysis and fuel cell applications that can potentially overcome all the issues described for other supports.
Pyrene-Thiol-modified Pd Nanoparticles on Carbon Support: Kinetic Control by Steric Hinderance and Improved Stability by the Catalyst-Support Interaction
Elucidation of oxygen reduction reaction and nanostructure of platinum-loaded graphene mesosponge for polymer electrolyte fuel cell electrocatalyst
3DC was selected to receive a grant from Miyagi Prefecture for our catalyst support business in the amount of approximately 30 million yen over three fiscal years.
For more details, please refer to the following news article.
Please contact us with any inquiries regarding collaborative research or procurement of materials.