Spectroscopy and Spectral Analysis, Volume. 42, Issue 8, 2616(2022)
Raman Spectroscopic Characterization and Surface Graphitization Degree of Coal-Based Graphite With the Number of Aromatic Layers
Figures & Tables(8)
Fig. 1. Evolution of the first (a) and second (b) order Raman spectra for coal-based graphite at 514 nm with the number of layers
Fig. 2. Fitting peaks of D1 (a) and 2D1 (b) of SXL130N sample excited by 514 nm laser
Fig. 3. Multiwavelength Raman spectra of coal-based graphite
(a): SXL130; (b): BC110; (c): SL100N; (d): CM130N
Fig. 4. Raman mapping of surface defects distribution for SXL130 sample
(a): Mapping area images and step size rages; (b): Representative photomicrograph; (c): Raman spectra at different position under the same experimental conditions; Raman mapping of defects distribution (d) (
Table 1. Proximate analysis, ultimate analysis and XRD parameters of coal-based graphites
View tableView in ArticleTable 1. Proximate analysis, ultimate analysis and XRD parameters of coal-based graphites
Samples Rm
/%Proximate analysis/% Ultimate analysis/% H/C XRD/nm Nave Mad Ad Vdaf FCad N C H S O* d002 Lc La CM130N 5.46 0.51 11.12 6.95 82.23 0.42 88.05 1.33 1.64 8.56 0.181 0.347 2 1.80 5.42 5 SL100N 7.20 1.81 1.39 5.79 91.19 0.18 93.05 0.93 0.26 5.58 0.120 0.342 1 3.47 8.09 10 BC210 7.29 1.97 6.26 4.65 87.51 0.10 91.68 0.71 0.31 7.20 0.093 0.338 8 7.50 13.41 22 BC110 5.53 1.27 10.26 4.21 84.75 0.06 94.50 0.47 0.30 4.67 0.060 0.338 5 12.18 27.18 36 SXL130 7.89 3.05 11.62 4.85 81.19 0.02 95.27 0.44 0.26 4.00 0.056 0.336 8 23.20 55.68 69
Table 2. Raman spectroscopic parameters for coal-based graphite
View tableView in ArticleTable 2. Raman spectroscopic parameters for coal-based graphite
Samples D1/cm-1 G/cm-1 D2/cm-1 2D1/cm-1 PG-D1 ID1/IG AD1/A(G+D1) ID1/ID2 IG/I2D1 position FWHM position FWHM position FWHM position FWHM CM130N 1 339 94 1 590 57 - - 2 670 263 251 1.49 0.75 - 8.78 SL100N 1 342 54 1 581 53 1 611 29 2 675 119 239 2.95 0.76 8.55 3.25 BC210 1 343 50 1 580 47 1 611 23 2 677 105 235 2.88 0.75 7.85 2.76 BC110 1 345 49 1 580 45 1 615 28 2 683 98 235 2.47 0.72 7.32 2.53 SXL130 1 341 43 1 570 25 1 608 29 2 684 64 229 0.34 0.36 4.71 2.01
Table 3. Main peaks shifts (pos. (514 nm)-pos. (325 nm)) and excitation wavelength-energy dispersion relation
View tableView in ArticleTable 3. Main peaks shifts (pos. (514 nm)-pos. (325 nm)) and excitation wavelength-energy dispersion relation
CM130N Δν/cm-1 δ(Δν)/δλ SXL130 Δν/cm-1 δ(Δν)/δλ Assgnt. 325 nm 514 nm 785 nm 325 nm 514 nm 785 nm 1 388 1 333 1 342 -0.29 1 383 1 345 1 352 -0.20 D1, E2g 1 607 1 593 1 594 -0.07 1 582 1 575 1 581 -0.04 G, E2g 2 418 2 482 2 496 0.34 2 420 2 453 - 0.17 2D4 2 760 2 663 2 673 -0.51 2 766 2 689 2 701 -0.41 2D1 2 979 2 909 2 918 -0.37 2 974 2 928 2 951 -0.24 D1+G 3 201 3 173 3 179 -0.15 3 232 3 228 3 205 -0.02 2D2
Table 4. Proportion of graphite distribution by frequency statistics of Raman mapping with various parameters
View tableView in ArticleTable 4. Proportion of graphite distribution by frequency statistics of Raman mapping with various parameters
参数 频数 ≤0.3 ≤0.6 ≤0.9 (IG-ID1)/(PG-D1) 5.92% 58.08% 84.16% ID1/IG 6.08% 48.32% 86.40% AD1/A(D1+G) 7.84% 46.56% 85.92%
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Huan-tong LI, Dai-yong CAO, Xiao-yan ZOU, Zhi-rong ZHU, Wei-guo ZHANG, Yan XIA. Raman Spectroscopic Characterization and Surface Graphitization Degree of Coal-Based Graphite With the Number of Aromatic Layers[J]. Spectroscopy and Spectral Analysis, 2022, 42(8): 2616
Paper Information
Category: Orginal Article
Received: Jan. 27, 2022
Accepted: --
Published Online: Mar. 17, 2025
The Author Email: LI Huan-tong (lht@xust.edu.cn)
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