Laser-induced breakdown spectroscopy: an advanced method for analysis of nanocarbon materials chemical composition†,Journal of Analytical Atomic Spectrometry

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Laser-induced breakdown spectroscopy: an advanced method for analysis of nanocarbon materials chemical composition†
Journal of Analytical Atomic Spectrometry ( IF 3.1 ) Pub Date : 2018-01-03 00:00:00 , DOI: 10.1039/c7ja00331e
V. F. Lebedev _{1,

2,

3} , M. K. Rabchinskii _{2,

3,

4} , M. S. Kozlyakov _{1,

2,

3} , D. N. Stepanov _{1,

2,

3} , A. V. Shvidchenko _{2,

3,

4} , N. V. Nikonorov _{1,

2,

3} , A. Ya. Vul' _{2,

3,

4}

Affiliation

The precise and express analysis of nanocarbon materials chemistry continues to be one of the key tasks in the study and the application of these unique structures. Despite the large variety of analytical techniques that have been commonly used for this purpose, the development of new methods that will further expand the efficiency of nanocarbon material characterization is still needed. Herein, the applicability of laser-induced breakdown spectroscopy (LIBS) towards studying the chemical composition of different types of nanocarbon structures was investigated. Graphene oxide, reduced graphene oxide (analogous of pristine graphene) and detonation nanodiamonds were chosen as the most attractive representatives of nanocarbon materials. The as-obtained results demonstrate that the functionalization parameters, such as the functionalization degree and predominant type of the functional groups, can be effectively determined on the basis of the analyzed plasma emission spectra. Furthermore, the presence of various inorganic contaminants can be identified using the LIBS technique. When compared to conventional approaches that study samples in the form of thick pellets, thin films of nanocarbon structures on various substrates were successfully analyzed using the LIBS technique. Several experimental features arise in this case, in particular, the possible ablation of wafer and formation of a thermal emission background. To overcome these challenges and to obtain reliable informative spectra, adjustment of the ablation parameters and additional spectra processing procedures were applied. As a result, the LIBS method can be a valuable and simple tool for quality control and the characterization of various nanocarbon structures.

中文翻译：

激光诱导击穿光谱：分析纳米碳材料化学成分的高级方法†

纳米碳材料化学的精确而明确的分析仍然是这些独特结构的研究和应用中的关键任务之一。尽管为此目的通常使用了各种各样的分析技术，但仍需要开发将进一步扩大纳米碳材料表征效率的新方法。本文中，研究了激光诱导击穿光谱法（LIBS）在研究不同类型的纳米碳结构的化学组成方面的适用性。氧化石墨烯，还原的氧化石墨烯（与原始石墨烯类似）和爆轰纳米金刚石被选为纳米碳材料的最具吸引力的代表。所得结果表明，功能化参数根据所分析的等离子体发射光谱，可以有效地确定官能团的官能度和主要类型，例如官能团的官能度和主要类型。此外，可以使用LIBS技术识别各种无机污染物的存在。当与研究以厚颗粒形式的样品的传统方法相比时，使用LIBS技术成功地分析了各种基材上的纳米碳结构薄膜。在这种情况下出现了几个实验特征，特别是可能烧蚀晶片和形成热辐射背景。为了克服这些挑战并获得可靠的信息光谱，应用了消融参数的调整和其他光谱处理程序。因此，

更新日期：2018-01-03

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