Carbon Nanomaterials in Flames: from 0-D to 1-D and 2-D
- PDF / 934,725 Bytes
- 13 Pages / 432 x 648 pts Page_size
- 3 Downloads / 264 Views
Carbon Nanomaterials in Flames: from 0-D to 1-D and 2-D Chengzhi Luo1,2, Lingmin Liao2,3, Xiang Qi2,4, Yueli Liu2,5, Bing Cao1,2, Jun Zhang2,6,Yupeng Zhang2,7, Qiaoliang Bao2,7, and Chunxu Pan1,2 1 Shenzhen Research Institute, Wuhan University, Shenzhen, Guangdong 518057, China. 2 School of Physics and Technology, Wuhan University, Wuhan, Hubei 430072, China. 3 Materials and Structural Department, Changjiang River Scientific Research Institute, Wuhan, Hubei 430010, China. 4 Faculty of Materials, Optoelectronics and Physics, Xiangtan University, Xiangtan, Hunan 411105, China. 5 School of Materials Science and Engineering, Wuhan University of Technology , Wuhan, Hubei 430070, China. 6 College of Materials & Environmental Engineering, Hangzhou Dianzi University, Hangzhou, Zhejiang 310018, China. 7 Department of Materials Engineering, Monash University, Clayton, VICTORIA 3800, Australia. ABSTRACT Carbon nanomaterials are viewed as promising building blocks of future nanotechnology because of their superior electrical, thermal, and mechanical properties. Carbon nanomaterials can be synthesized by a variety of methods, in which flames offer a potential route in large quantities at a significantly lower cost. Our group has worked on growth of carbon nanomaterials involving carbon nanotubes (CNTs), carbon nanofibers (CNFs) and graphenes in flames for more than 15 years, and almost 100 journal papers have been published. In this paper, we review the advances in synthesis of carbon nanomaterials from flames in detail together with discussion on the major challenges and opportunities for practical applications. INTRODUCTION Nanomaterials, defined as having at least one dimension less than 100 nm, have received steadily growing interest due to their unique properties and application potential, oftentimes superior to their bulk counterparts. Typical examples include zero-dimensional (0-D) nanoparticles, one-dimensional (1-D) nanowires or nanotubes, and two-dimensional (2-D) graphenes. Because of the quantum confinement of electrons in one or more dimensions, novel electrical, optical, and magnetic properties can be achieved in nanostructures. Currently, carbon nanomaterials hold the most promise among nanomaterials because of their superior electrical, thermal, and mechanical properties. Similar to other nanomaterials, carbon nanomaterials can be divided into three categories: 0-D, 1-D and 2-D. In general, the 0-D carbon nanomaterials are known as soot. Soot is the fine black particles with amorphous structure, chiefly composed of carbon, produced by incomplete combustion of coal, oil, wood, or other fuels. The 1-D carbon nanomaterials are referring to carbon nanotubes (CNTs) and carbon nanofibers (CNFs). CNTs can be thought of as sheets of graphene bent into a cylindrical shape. Depending on the chirality along the graphene sheet, either semiconducting or metallic electronic states are created [1]. CNFs are of amorphous structure and exhibit special advantages in
1313 Downloaded from https:/www.cambridge.org/core. Columbia Un
Data Loading...
