Borophene

About Borophene

• Borophene is an allotrope of boron.
• It consists of a single-atom-thick sheet of boron atoms arranged in a two-dimensional (2D) lattice.
• Structure: Unlike graphene, which consists of carbon atoms arranged in a perfect hexagonal structure, borophene is highly polymorphic.
  • Its atomic structure can vary with different synthesis conditions, leading to multiple configurations.
• Development: It was first predicted in theory during the mid-1990s and different borophene structures were experimentally confirmed in 2015.
• Properties:
  • Physical Characteristics: It is known for its ultra-light weight, flexibility, exceptional strength, and metallic nature.
  • Conductivity: It has excellent thermal and electrical conductivity, high capacitance, and higher electrical conductivity than graphene.
  • Tunable Properties: Its electrical and mechanical properties change with direction, allowing its characteristics to be adjusted for different specialized applications.
  • High Reactivity: It is highly reactive and interacts strongly with other atoms and molecules, making it useful in catalysis, energy storage, and sensor technologies.
  • Special Advantages: It has a higher strength-to-weight ratio, greater hydrogen storage capacity, lower cytotoxicity, and has shown superconducting capability under certain temperatures and compositions.
• Key Applications:
  • Electronics: It is mainly used in thin-layer electronics, optoelectronics, capacitors, and biosensors because of its outstanding properties.
  • Energy Technologies: It has shown significant potential in batteries, supercapacitors, fuel cells, hydrogen storage, and gas sensing applications.
  • Sustainable Lubrication: The recent study has opened a new avenue for using borophene as a high-performance lubricant additive in renewable castor oil.
• Recent Study:
  • Research Findings: Researchers from Institute of Advanced Study in Science and Technology (IASST), Guwahati, found that adding only 0.1 wt.% borophene to castor oil reduced friction by about 42% compared to pure castor oil.
  • Working Mechanism: It dispersed uniformly in castor oil without chemical modification and formed a durable protective tribofilm containing iron oxides, carbonaceous species, and boron-based compounds.
    • This protective layer reduced shear stress, improved load-bearing capacity, and minimized wear.