Department of Physics, National University of Singapore , 117542 Singapore.
Nano Lett. 2014 May 14;14(5):2677-80. doi: 10.1021/nl500568d. Epub 2014 Apr 30.
Significant progress has been made in the construction and theoretical understanding of molecular motors because of their potential use. Here, we have demonstrated fabrication of a simple but powerful 1 nm thick graphene engine. The engine comprises a high elastic membrane-piston made of graphene and weakly chemisorbed ClF3 molecules as the high power volume changeable actuator, while a 532 nm LASER acts as the ignition plug. Rapid volume expansion of the ClF3 molecules leads to graphene blisters. The size of the blister is controllable by changing the ignition parameters. The estimated internal pressure per expansion cycle of the engine is about ∼10(6) Pa. The graphene engine presented here shows exceptional reliability, showing no degradation after 10,000 cycles.
由于其潜在的应用，分子马达的构建和理论理解取得了重大进展。在这里，我们展示了一种简单但强大的 1nm 厚石墨烯引擎的制造。该引擎由一个高弹性的石墨烯膜-活塞和弱化学吸附的 ClF3 分子组成，作为高功率可变形的致动器，而 532nm 的 LASER 充当点火塞。ClF3 分子的快速体积膨胀导致石墨烯鼓泡。通过改变点火参数，可以控制气泡的大小。该发动机每膨胀循环的估计内部压力约为 10^6 Pa。这里提出的石墨烯发动机表现出了非凡的可靠性，经过 10000 次循环后没有退化。
