Ultrahigh speed and ultraprecise synthesis of carbon nanowalls and its application to next-generation fuell cell device.

研究了碳纳米墙的超高速、超精密合成及其在燃料电池电极中的应用。通过对生长过程中离子和自由基辐照的独立控制，阐明了离子辐照对纳米石墨烯初始成核和垂直生长的影响。建立了常压等离子体合成CNWs的技术。此外，通过与等离子体辐照石墨表面的比较，阐明了超临界流体作用下超高密度铂纳米粒子在CNW表面的支撑机理。

Ultrahigh-speed and ultraprecise synthesis of carbon nanowalls (CNWs) and their application to fuel cell electrodes were studied. By independent control of ion and radical irradiations during the growth, effects of ion irradiation on nucleation and vertical growth of nanographene at the initial stage were clarified. Synthesis techniques of CNWs employing atmospheric pressure plasma were also established. In addition, supporting mechanisms of ultrahigh-density Pt nanoparticles on the CNW surfaces employing supercritical fluid were clarified based on comparisons with plasma irradiated graphite surfaces.