Tohoku Univ. Technology：Carbon nanotube production catalyst, carbon nanotube and its production method: T21-002
Able to product high purity single chirality CNT at low cost
Carbon nanotube (CNT) is a graphene cylindrical sheet consisting of six-membered ring of carbon. It is known that the CNT axial winding of graphene (chirality) determines the electronic state, such as metallicity, semiconductivity and band gap (BG). The production of CNT with high chiral purity requires a complex process that includes the wet process such as separation and impurity removal. This invention is about a simple method for synthesizing semiconductor type (BG>1eV) single layer CNT with extremely high chiral purity (over 90%), which does not require a process to increase chiral purity and which has low production cost.
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The revenue generated from technology transfer is reinvested as new research funding for universities and researchers, and is utilized to create further research outcomes. To ensure the smooth operation of this cycle, known as the "Intellectual Creation Cycle," we will vigorously promote technology transfer. The types of seeds we handle include patents, know-how, databases, and programs. We have established a collaborative framework by signing basic technology transfer agreements with the following universities (as of June 1, 2025): Tohoku University, Hirosaki University, Iwate University, Akita University, Fukushima University, Yamagata University, Tohoku Gakuin University, Iwate Medical University, Fukushima Medical University, Aizu University, Miyagi University, Hokkaido University, Muroran Institute of Technology, and Showa Medical University.
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