将分形理论引入到介孔碳孔结构表征,基于SEM图像计算二维分形维数(D2)及三维分形维数(D3),并分析了分形维数与孔结构参数之间的规律.结果表明,D2及D3能有效地量化介孔碳形貌的差异,两者随形貌的变化一致,即D2越大D3也越大.当介孔碳的显气孔率相近时,平均孔径越小D2和D3越大,反映出介孔碳具有越多的细部特征和越粗糙的表面.
参考文献
| [1] | 徐顺建,乔冠军.复杂形状SiC陶瓷的模板法成型研究进展[J].材料导报,2009(21):59-63. |
| [2] | J. Martinez Fernandez;A. Munoz;A.R. de Arellano Lopez .Microstructure-mechanical properties correlation in siliconized silicon carbide ceramics[J].Acta materialia,2003(11):3259-3275. |
| [3] | Alar Janes;Heisi Kurig;Enn Lust .Characterisation of activated nanoporous carbon for supercapacitor electrode materials[J].Carbon: An International Journal Sponsored by the American Carbon Society,2007(6):1226-1233. |
| [4] | Anna Merritt;Ramakrishnan Rajagopalan;Henry C. Foley .High performance nanoporous carbon membranes for air separation[J].Carbon: An International Journal Sponsored by the American Carbon Society,2007(6):1267-1278. |
| [5] | 朱纪磊,奚正平,汤慧萍,谈萍.多孔结构表征及分形理论研究简况[J].稀有金属材料与工程,2006(z2):452-456. |
| [6] | Su-Il Pyun;Chang-Kyu Rhee .An investigation of fractal characteristics of mesoporous carbon electrodes with various pore structures[J].Electrochimica Acta,2004(24):4171-4180. |
| [7] | Zheng-Hong Huang;Feiyu Kang;Wen Lai Huang;Jun-Bing Yang;Kai-Ming Liang;Meng-Long Cui;Zhiying Cheng .Pore Structure and Fractal Characteristics of Activated Carbon Fibers Characterized by Using HRTEM[J].Journal of Colloid and Interface Science,2002(2):453-457. |
| [8] | Sarkar N;Chaudhur B B .An efficient approach to estimate fractal dimension of textural images[J].Pattern Recognition,1992,25(09):1035. |
| [9] | Huang W L;Liang K M;Cui S H et al.Influence of ultrasonic vibration on the mesoporosity and surface fractal dimensions of resultant silica xerogels[J].Materials Research Bulletin,2001,36(3-4):461. |
| [10] | Shujian Xu;Yongji Weng .A new approach to estimate fractal dimensions of corrosion images[J].Pattern recognition letters,2006(16):1942-1947. |
| [11] | 徐顺建,乔冠军,王红洁,李涤尘,卢天健.酚醛树脂聚合相分离热解制备介孔碳[J].无机材料学报,2008(05):971-974. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%