AI Chat Paper
Discover the SciOpen Platform and Achieve Your Research Goals with Ease.
Search articles, authors, keywords, DOl and etc.
{{expandStatus?'Exit ':''}}Advanced Search
Ca2+/Cr3+ co-doped LaAlO3 infrared (IR) ceramics have been proven to be potential energy-saving materials for high-temperature industries because of their high emissivity and high-temperature stability. However, Cr6+ formation commonly occurs in materials and poses environmental and health risks, such as Cr6+ dissolution in water and CrO3(g) volatilization. In this study, we combined high emissivity with in situ detoxification by introducing residual Al2O3 into Ca2+/Cr3+ co-doped LaAlO3 ceramics. Compared with the undoped ceramics, the addition of 20 wt% residual Al2O3 resulted in a 78.5% reduction to 18.44 mg/kg (lower than the EU standard of 20 mg/kg) in Cr6+ dissolution and a decrease in 77.8% CrO3(g) volatilization. This significant detoxification effect can be attributed to the formation of CaAl12−xCrxO19. Additionally, as the residual Al2O3 content increased from 5 to 20 wt%, the ceramics maintained high emissivity, above 0.896 in the near-infrared band and 0.781 in the mid-infrared band. Furthermore, the IR coating effectively increased the surface temperature (from 767.1 to 790.7 °C/min) and the heat radiation of the heating source, increasing the heating rate from 31.7 to 34.6 °C/min during water heating. This work offers a promising approach for designing environmentally friendly IR ceramics with excellent IR performance for energy-saving applications in the high-temperature industry.
Long CC, Jiang ZX, Shangguan JF, et al. Applications of carbon dots in environmental pollution control: A review. Chem Eng J 2021, 406: 126848.
Dong SJ, Zhang FN, Li N, et al. Thermal radiation and cycling properties of (Ca,Fe) or (Sr,Mn) co-doped La2Ce2O7 coatings. J Eur Ceram Soc 2020, 40: 2020–2029.
Shao GF, Wu XD, Cui S, et al. High emissivity MoSi2–ZrO2–borosilicate glass multiphase coating with SiB6 addition for fibrous ZrO2 ceramic. Ceram Int 2016, 42: 8140–8150.
Tan W, Adducci M, Petorak C, et al. Effect of rare-earth dopant (Sm) concentration on total hemispherical emissivity and ablation resistance of ZrB2/SiC coatings. J Eur Ceram Soc 2016, 36: 3833–3841.
Tao X, Xu XJ, Guo LL, et al. MoSi2–borosilicate glass coating on fibrous ceramics prepared by in situ reaction method for infrared radiation. Mater Design 2016, 103: 144–151.
Tao X, Li XT, Guo LL, et al. Effect of TaSi2 content on the structure and properties of TaSi2–MoSi2–borosilicate glass coating on fibrous insulations for enhanced surficial thermal radiation. Surf Coat Tech 2017, 316: 122–130.
Jones JM, Mason PE, Williams A. A compilation of data on the radiant emissivity of some materials at high temperatures. J Energy Inst 2019, 92: 523–534.
Tao X, Liu JC, Xu XJ, et al. Comparative study of MoSi2–borosilicate glass coatings on fibrous ceramics prepared by in situ reaction method and two-step method. J Alloys Compd 2016, 684: 488–495.
Han RF, Tariq NUH, Zhao F, et al. High infrared emissivity energy-saving coatings based on LaMnO3 perovskite ceramics. Ceram Int 2022, 48: 20110–20115.
Zhang HP, Wang C, Wang YM, et al. Evaluation on the microstructure and thermal infrared emissivity of Ca2+-doped ytterbium chromate coating deposited by saucer-shaped porous feedstocks for high-temperature thermal protection. Appl Surf Sci 2023, 608: 155210.
Li MR, Zhi Q, Li JL, et al. Sr(Cr0.2Mn0.2Fe0.2Co0.2Ni0.2)O3: A novel high-entropy perovskite oxide with enhanced electromagnetic wave absorption properties. J Materiomics 2024, 10: 1176–1185.
Yuan XL, Wang QH, Luo W, et al. Effect of Ca2+/Cr3+doping ratio on the infrared radiation performance and Cr6+ formation in LaAlO3 ceramics. J Eur Ceram Soc 2024, 44: 2651–2661.
Han Z, Li XW, Ye JK, et al. Significantly enhanced infrared emissivity of LaAlO3 by co-doping with Ca2+ and Cr3+ for energy-saving applications. J Am Ceram Soc 2015, 98: 2336–2339.
Wang Q, Wang G, Zhang J, et al. Preparation and properties Ca2+ and Cr3+ co-doped LaAlO3 ceramic. J Chin Ceram Soc 2020, 82: 908–912.
Ye JK, Bu CH, Han Z, et al. Flame-spraying synthesis and infrared emission property of Ca2+/Cr3+ doped LaAlO3 microspheres. J Eur Ceram Soc 2015, 35: 3111–3118.
Nath M, Song SQ, Garbers-Craig AM, et al. Phase evolution with temperature in chromium-containing refractory castables used for waste melting furnaces and Cr(VI) leachability. Ceram Int 2018, 44: 20391–20398.
Shevchenko M, Shishin D, Jak E. Integrated phase equilibria experimental study and thermodynamic modeling of the Cr–Si–O, Fe–Cr–O and Fe–Cr–Si–O systems. Ceram Int 2022, 48: 33418–33439.
Mao LQ, Su P, Huang B, et al. Detoxification of solid waste containing Cr(VI) with phosphate by thermal treatment. Chem Eng J 2017, 314: 114–122.
Song SQ, Garbers-Craig AM. Formation, leachability and encapsulation of hexavalent chromium in the Al2O3–CaO–Fe2O3–Cr2O3 system. J Eur Ceram Soc 2016, 36: 1479–1485.
Wang ZJ, Zhang F, Wang NN, et al. Ternary layered boride MoAlB: A novel thermo-regulation microwave absorbing ceramic material. J Adv Ceram 2024, 13: 699–710.
Zhang WK, Song SQ, Nath M, et al. Inhibition of Cr6+ by the formation of in situ Cr3+ containing solid-solution in Al2O3–CaO–Cr2O3–SiO2 system. Ceram Int 2021, 47: 9578–9584.
Mao LQ, Deng N, Liu L, et al. Effects of Al2O3, Fe2O3, and SiO2 on Cr(VI) formation during heating of solid waste containing Cr(III). Chem Eng J 2016, 304: 216–222.
Xu TT, Nath M, Xu YB, et al. Thermal evolution of Al2O3–CaO–Cr2O3 castables in different atmospheres. Ceram Int 2021, 47: 11043–11051.
Nath M, Tripathi HS. Thermo-mechanical behavior of Al2O3–Cr2O3 refractories: Effect of TiO2. Ceram Int 2015, 41: 3109–3115.
Nath M, Ghosh A, Tripathi HS. Hot corrosion behavior of Al2O3–Cr2O3 refractory by molten glass at 1200 °C under static condition. Corros Sci 2016, 102: 153–160.
Riu DH, Kong YM, Kim HE. Effect of Cr2O3 addition on microstructural evolution and mechanical properties of Al2O3. J Eur Ceram Soc 2000, 20: 1475–1481.
Fan YC, Wang LJ, Li JL, et al. Preparation and electrical properties of graphene nanosheet/Al2O3 composites. Carbon 2010, 48: 1743–1749.
Wang ZJ, Meng YZ, Tang SL, et al. Simultaneous achievement of large electrocaloric effect and ultra-wide operating temperature range in BaTiO3-based lead-free ceramic. J Adv Ceram 2024, 13: 1234–1241.
Ahmad I, Islam M, Abdo HS, et al. Toughening mechanisms and mechanical properties of graphene nanosheet-reinforced alumina. Mater Design 2015, 88: 1234–1243.
Liu Y, Su HJ, Shen ZL, et al. Effect of seed orientations on crystallographic texture control in faceted Al2O3/YAG eutectic ceramic during directional solidification. J Mater Sci Technol 2023, 146: 86–101.
Wang J, Jin QQ, Song JB, et al. Multiscale defect-mediated thermophysical properties of high-entropy ferroelastic rare-earth tantalates. Ceram Int 2023, 49: 40019–40030.
Wang J, Song JB, Jiang CY, et al. Rare earth tantalate coating materials for thermal and oxidation protection of carbon–carbon composites. Ceram Int 2024, 50: 26703–26714.
Perdew JP, Burke K, Ernzerhof M. Generalized gradient approximation made simple. Phys Rev Lett 1996, 77: 3865–3868.
Kresse G, Furthmüller J. Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set. Comput Mater Sci 1996, 6: 15–50.
Su HJ, Liu Y, Ren Q, et al. Unveiling the dynamic instability mechanism of microstructure transformation in faceted oxide eutectic composite ceramics. J Mater Sci Technol 2023, 144: 224–234.
Zhang XX, Gao XD, Dong YB, et al. Nanoporous Mg-doped SiO2 nanoparticles with tunable infrared emissivity toward effective radiative cooling coatings. J Alloys Compd 2023, 940: 168905.
Li Y, Chen CX, Li JT, et al. Surface charges and optical characteristic of colloidal cubic SiC nanocrystals. Nanoscale Res Lett 2011, 6: 454.
Li N, Huang X, Wang D, et al. Al0.97Y0.03PO4 thermal radiation material with enhanced infrared emissivity. Ceram Int 2020, 46: 2010–2015.
Wang XQ, Wang QH, Huang L, et al. Enhanced infrared radiation of LaAlO3 ceramics via Co2+ doping. Ceram Int 2023, 49: 36308–36316.
Manohar T, Prashantha SC, Nagabhushana H, et al. Photoluminescence studies of rare-earth-doped (Ce3+) LaAlO3 nanopowders prepared by facile combustion route. Mater Today Proc 2017, 4: 11848–11856.
Liu QS, Cheng HJ, Tu T. Experiment and simulation of infrared emissivity properties of doped LaAlO3. J Am Ceram Soc 2022, 105: 2713–2724.
Cai H, Chen H, Zhou H, et al. Controlling Cr3+/Cr4+ concentration in single-phase host toward tailored super-broad near-infrared luminescence for multifunctional applications. Mater Today Chem 2021, 22: 100555.
Chen GL, Min BZ, Fu HY, et al. Near unity broadband emissivity and ultralow thermal conductivity from yttrium niobate-based ceramics. Chem Eng J 2023, 468: 143695.
Liu SQ, Cai H, Zhang SY, et al. Site engineering strategy toward enhanced luminescence thermostability of a Cr3+-doped broadband NIR phosphor and its application. Mater Chem Front 2021, 5: 3841–3849.
Zhang LB, Wu P, Chen H, et al. Effect of calcination temperature on visible near-infrared reflectance of aluminum-doped chromium. Mat Sci Semicon Proc 2020, 105: 104672.
Wang J, Jin QQ, Song JB, et al. Revealing the low thermal conductivity of high-entropy rare-earth tantalates via multi-scale defect analysis. J Adv Ceram 2023, 12: 2087–2100.
Wu P, Zeng YP, Wang J, et al. Realizing microwave-infrared compatible stealth via single 8YSZ coating. J Adv Ceram 2024, 13: 1535–1545.
Hariharan R, Sahoo SK, Samajdar I, et al. Correlation between microstructure and electrical properties of A-site substituted YAlO3 ceramics. Mater Sci Eng B 2018, 231: 66–73.
Nath M, Song SQ, Liao N, et al. Co-existence of a Cr3+ phase (CaAl2Cr2O7) with hydraulic calcium aluminates at high temperature in the Al2O3–CaO–Cr2O3 system. Ceram Int 2021, 47: 2624–2630.
Hu FY, Zhang F, Wang XH, et al. Ultrabroad band microwave absorption from hierarchical MoO3/TiO2/Mo2TiC2T x hybrids via annealing treatment. J Adv Ceram 2022, 11: 1466–1478.
Nath M, Song SQ, Xu TT, et al. Effective inhibition of Cr(VI) in the Al2O3–CaO–Cr2O3 refractory castables system through silica gel assisted in situ secondary phase tuning. J Clean Prod 2019, 233: 1038–1046.
Froitzheim J, Ravash H, Larsson E, et al. Investigation of chromium volatilization from FeCr interconnects by a denuder technique. J Electrochem Soc 2010, 157: B1295.
Wang J, Li JY, Jiang CY, et al. Advanced rare earth tantalate RETaO4 (RE = Dy, Gd and Sm) with excellent oxygen/thermal barrier performance. J Rare Earth 2024, 42: 1595–1603.
Chen GL, Fu HY, Zou YC, et al. A promising radiation thermal protection coating based on lamellar porous Ca–Cr co-doped Y3NbO7 ceramic. Adv Funct Mater 2023, 33: 2305650.
768
Views
172
Downloads
0
Crossref
0
Web of Science
0
Scopus
0
CSCD
Altmetrics
This is an open access article under the terms of the Creative Commons Attribution 4.0 International License (CC BY 4.0, http://creativecommons.org/licenses/by/4.0/).
京公网安备11010802044758号