【作者】 彭娜； 范庆军； 王茹； 周龙琴；

【Author】 PENG Na~1 FAN Qing-jun~1 WANG Ru~1 ZHOU Long-qin~2 1.Institution of Chemical Engineering,Sichuan University,Chengdu 610065,China; 2.Sichuan Lanbo Science and Technology Exploitation Company Limited,Chengdu 610081,China

【机构】 四川大学化学工程学院； 四川蓝博科技开发有限公司；

【摘要】 首先研究了炔烃缩聚两步法合成β-线型碳．实验表明,酸性介质和 pH 对线型碳结构、产率及纯度有较大影响．通过 FTIR 和 X 衍射研究了β-线型碳向金刚石转化．结果表明,在400℃、0．45MPa 和 N₂气保护条件下,β-线型碳实现了向金刚石转化,转化过程无需催化剂、金刚石晶种和氩气保护,其产率可达37．7％．更多还原

【Abstract】 The synthesis of β-carbyne was studied by two-steps method of oxidative coupling of acetylide.It was found that, influence of acidity medium and pH on yield,quantities of copper and carbon contained in β-carbyne were remarkable.The transformation of β-carbine to diamond was studied by FTIR and XRD.The results indicated that the transformation was achieved with the pressure of 0.45MPa,temperature of 400℃ and presence of N₂.And the transforming rate was attained to 37.7%.In the process,protection of argon,catalyst and diamond-crystal seeds were needless.更多还原