Water and oil do not mix, meanwhile what happens where water and water meet? Or where air meets liquid? Unique reactions occur at as a resultant. Japan based a researchers team used to develop the first successful construction of uniform needed for next- generation electrically conductive nanosheets sensors and energy production technologies.
The research collaboration from University of Tokyo published their approach today, Osaka Prefecture University research collaboration & Japan Synchrotron Radiation Research Institute published their approach today (October 28, 2021) in ACS Applied Materials & Interfaces.
For a long time we have known that on the surface of water — understanding oil forms a large and uniform film, using this phenomenon lead to energy saving processes. Said corresponding author- Osaka Prefecture University, Rie Makiura, Associate Professor in Department of Materials Science, at a similar interface utilizing a combination of raw materials we succeeded advanced three-dimensional nanostructures that conduct electricity.”
These materials are metal-organic frameworks, metal ions and organic linkers that are highly organized which are microporous and composed called MOFs. From nanotechnologies to life sciences, they have myriad potential applications, according to Makiura back from realized use, one unrealized property holds them, and most fabricated MOFs do not conduct electricity well
In such applications In order to utilize the superior features of conductive MOFs as sensors and energy devices. Which defined pore size of ultrathin films after fabrication, And film thickness are a necessity they have been actively sought after well-controlled growth direction,
Most MOF thin-film development involves exfoliating layers from larger crystals and placing them on a substrate, non-uniform sheets that are not highly conductive, this process is complicated and often results in thick non- uniform sheets, to develop uniform conductive nanosheets and ultrathin, her team decided to flip the approach
On aqueous solution of metal ions they started spreading a solution containing organic linkers. Once in contact, in a hexagonal arrangement the substances begin assembling their components. Over an hour, form where the liquid and air meet the arrangement continued as nanosheets. Finalizing of the nanosheet formation, they used two barriers to compress the nanosheets into more dense and continuous state.
With highly organized crystalline structures it’s a streamlined approach, to produce incredibly thin nanosheets according to Makiura. Via microscopic the researchers confirmed the uniform structure and x-ray crystallographic analysis. The visualized tightly ordered crystals indicate the electrical property. In contact in each sheet the crystals were uniformly, which also facilitated close contact between sheets. The researchers tested this by adding gold electrodes and measuring the conductivity, transferring nanosheets to a silicon substrate
Meanwhile it is not easy to evaluate the ultra-thin films. We were able to prove tha it had high electrical conductivity and a three-dimensional nanostructure. Said author Takashi Ohata, a doctoral student supervised by Makiura
Researchers are now finding how different parameters affect the nanosheet morphology with the goal of developing a high-quality nanosheets with controllable and tunable methodology to targeted electronic properties
Our simple bottom-up and versatile assembly of suitable molecular building component at the liquid/ air interface into an extended architecture realizes the creation of a perfectly oriented. Finding further enhances the potential of the liquid/ air interface. For energy creation devices and catalysts it is real use in many potential applications to create a wide variety of nanosheets.