title: A facile sulfur vapor assisted reaction method to grow boron nitride nanorings at relative low temperature.
abstract: Boron nitride (BN) nanorings were synthesized using a sulfur vapor assisted solid-state method at 600 degrees C. The rings had typical diameters of 100-300 nm, and the shells were 5-20 nm thick and about 50 nm wide. On the basis of the characterization of X-ray powder diffraction pattern (XRD), X-ray photoelectron spectroscopy (XPS), and Fourier transformation infrared spectroscopy (FTIR) measurement, the as-prepared product was pure-phase hexagonal BN. High-resolution transmission electron microscopy (HRTEM) images proved that the nanorings were formed through the coiling of the (002) planes of hexagonal BN. A possible growth process for BN nanorings is suggested.
authors.affiliation: State Key Lab of Crystal Materials, Shandong University, Jinan 250100, People's Republic of China.hxp@icm.sdu.edu.cn
authors.forename: Xiaopeng
authors.initials: X
authors.lastname: Hao
authors.forename: Yongzhong
authors.initials: Y
authors.lastname: Wu
authors.forename: Jie
authors.initials: J
authors.lastname: Zhan
authors.forename: Jiaxiang
authors.initials: J
authors.lastname: Yang
authors.forename: Xiangang
authors.initials: X
authors.lastname: Xu
authors.forename: Minhua
authors.initials: M
authors.lastname: Jiang