Journal of Inorganic Materials, Volume. 37, Issue 2, 189(2022)
Figures & Tables(9)
1. XRD patterns of Na3Zr2Si2PO12 powder sintered at different temperatures
2. SEM images of Na3Zr2Si2PO12 particle after conventional mixing (a) and spray drying (b-c), and TEM image (d) of Na3Zr2Si2PO12 particle surface after spray drying
3. Na3Zr2Si2PO12 particle size profiles of conventional mixing (NZSP) and spraying drying (SD-NZSP) measured by laser particle analyzer
4. SEM images of slice sections for CS-NZSP (a) and SD-CS-NZSP (b), corresponding photographs (c) and elemental mapping images (d-g) of SD-CS-NZSP
5. (a) EIS spectra at room temperature and (b) Arrhenius plots of CS-NZSP and SD-CS-NZSP; (c) DC potentiostatic polarization current and (d) electrochemical window for SD-CS-NZSP
Table 1. Key parameters of NASICON-type materials for different sintering method
View tableView in ArticleTable 1. Key parameters of NASICON-type materials for different sintering method
Sintering method Composition Sintering temperature/℃ Sintering aid Time/h rrelative/% st/(S∙cm-1) Ea/eV Ref. CSP Na3.256Mg0.128Zr1.872Si2PO12 140 None 1 82.9 0.41´10-4 - [19] FH-CSP Na3Zr2Si2PO12 375 NaOH 3 93 2.2´10-4 0.32 [24] LPS Na3Zr2Si2PO12 1150 NaF 24 - 1.7´10-3 0.28 [25] LPS Na3Zr2Si2PO12 900 Na3BO3 10 93 1.4´10-3 - [26] LPS Na3Zr2Si2PO12 1175 Na3SiO3 10 93 1.45´10-3 - [27] SPS Na3.4Zr1.6Sc0.4Si2PO12 1100 KOHaq 0.1 95 9.3´10-4 - [28] SPS Na3Zr2Si2PO12 1210 None 0.5 97.0 1.7´10-3 0.28 [29] MWS Na3Zr2Si2PO12 850 None 0.5 96 2.5´10-4 0.31 [23] CS Na3Zr2Si2PO12 1250 None 16 71.4 1.7´10-4 0.36 [20] CS Na3.1Zr1.9Ga0.1Si2PO12 1250 None 16 86.5 1.06´10-3 0.29 [20] CS Na3Zr2Si2PO12 1200 None 24 87.6 6.7´10-4 0.353 [21] CS Na3.3Zr1.7La0.3Si2PO12 1200 None 24 99.6 3.4´10-3 0.291 [21] CS Na3Zr2Si2PO12 1250 None - 84.02 2.17´10-4 0.407 [18] O2-CS Na3.4Zr1.9Zn0.1Si2.2P0.8O12 1250 None - 99.46 5.27´10-3 0.285 [18] CS Na3Zr2Si2PO12 1250 None 6 88.1 4.94´10-4 0.34 This work SD-CS Na3Zr2Si2PO12 1250 None 6 97.5 6.96´10-4 0.32 This work
Table 2. Sintering parameters and density measurement parameters and measurement results of Na3Zr2Si2PO12 solid electrolyte green bodies and ceramic sheet
View tableView in ArticleTable 2. Sintering parameters and density measurement parameters and measurement results of Na3Zr2Si2PO12 solid electrolyte green bodies and ceramic sheet
Sample Process temp./℃ Time/h m/g rethanol/(g·cm-3) msubmerged/g rreal/(g·cm-3) rtheoretical/(g·cm-3) rrelative/% GB - - 0.2902 0.785 0.2056 2.693 3.244 83.01 SD-GB - - 0.2880 0.785 0.2098 2.891 3.244 89.12 CS-NZSP 1250 6 0.2672 0.785 0.1938 2.858 3.244 88.10 SD-CS-NZSP 1250 6 0.2644 0.785 0.1988 3.164 3.244 97.53
Table 3. Elemental analysis of Na3Zr2Si2PO12 ceramic slice section by spray drying/%
View tableView in ArticleTable 3. Elemental analysis of Na3Zr2Si2PO12 ceramic slice section by spray drying/%
Element O K Na K Si K P K Zr L Atomic percentage 60.10 15.09 9.94 5.06 9.81 Weight percentage 36.43 13.13 10.59 5.94 33.91
Table 4. Ionic conductivity of CS-NZSP and SD-CS-NZSP at room temperature
View tableView in ArticleTable 4. Ionic conductivity of CS-NZSP and SD-CS-NZSP at room temperature
Sample sb/(S·cm-1) sgb/(S·cm-1) st/(S·cm-1) Ea/eV CS-NZSP 1.28×10-3 8.03×10-4 4.94×10-4 0.34 SD-CS-NZSP 1.64×10-3 1.21×10-3 6.96×10-4 0.32
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Wenkai LI, Ning ZHAO, Zhijie BI, Xiangxin GUO.
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Received: Aug. 4, 2021
Accepted: --
Published Online: Nov. 14, 2022
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