基于HRTEM的炭黑芳香晶格条纹结构特性研究

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基于HRTEM的炭黑芳香晶格条纹结构特性研究

更新时间：2025-07-09

- 基于HRTEM的炭黑芳香晶格条纹结构特性研究
- Issue 8, Pages: 178-188(2022)
- 作者机构：
  
  1. 西安交通大学动力工程多相流国家重点实验室
  2. 西安热工研究院有限公司
  3. 华能威海发电有限责任公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TQ127.11
- Published：2022
- 稿件说明：
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[J]. 2022, (8): 178-188.
DOI：

[J]. 2022, (8): 178-188. DOI：

摘要

为了深入开展碳质材料芳香结构相关的微观化学特性研究，掌握碳质材料化学生产与转化机理，基于高分辨率透射电镜技术(HRTEM)提出微晶结构定量分析方法，从4种来源不同的炭黑样品的HRTEM图像取芳香晶格条纹，并定量表征晶格条纹的长度、角度、曲率以及堆垛等特征参数。研究结果表明：同一样品不同区域、不同样品之间的微晶结构分布规律相似；随条纹长度递增，晶格条纹数量减少，短条纹居多；晶格角度、曲率分布分散；堆垛以单层为主，随堆垛层数递增，堆垛的数量减少；同一样品不同区域在同一条纹长度、角度及曲率范围内分布的晶格条纹数相差1%以内，微晶结构差异较小，不同样品之间相差可达5%以上，差异较为显著。所提的HRTEM微晶结构定量分析方法能够得到炭黑芳香晶格条纹微观结构分布特征，适用于包含多环芳香苯环结构的多种碳质材料，可为分子模型构建研究提供数据来源，对进一步认识碳质材料微晶结构特征及多环芳香结构演化有潜在的应用价值。

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references

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