(Mg,Cr)共掺LaFeO3基复合粉体的能带结构及其热辐射性能

刘庆生; 谈成亮; 程华金; 段旭; 常晴; 陈江安

doi:10.3788/fgxb20194011.1348

您当前的位置：

首页 >

文章列表页 >

(Mg,Cr)共掺LaFeO₃基复合粉体的能带结构及其热辐射性能

材料合成及性能 | 更新时间：2020-08-12

- (Mg,Cr)共掺LaFeO₃基复合粉体的能带结构及其热辐射性能
- Energy Band Structure and Thermal Radiation Properties of (Mg,Cr) Codoped LaFeO₃ Based Composite Powders
- 发光学报 2019年40卷第11期页码：1348-1358
- 作者机构：
  
  1. 江西理工大学材料冶金化学学部,江西赣州,341000
  2. 江西理工大学资源与环境工程学院,江西赣州,341000
- 作者简介：
- 基金信息：
  
  国家自然科学基金（51564019，51674125）资助项目
- DOI：10.3788/fgxb20194011.1348
  中图分类号： O481.31
- 收稿日期：2019-06-17，
  
  修回日期：2019-07-31，
  
  网络出版日期：2019-08-20，
  
  纸质出版日期：2019-11-05
- 稿件说明：
移动端阅览
刘庆生, 谈成亮, 程华金等. (Mg,Cr)共掺LaFeO3基复合粉体的能带结构及其热辐射性能[J]. 发光学报, 2019,40(11): 1348-1358

LIU Qing-sheng, TAN Cheng-liang, CHENG Hua-jin etc. Energy Band Structure and Thermal Radiation Properties of (Mg,Cr) Codoped LaFeO3 Based Composite Powders[J]. Chinese Journal of Luminescence, 2019,40(11): 1348-1358
刘庆生, 谈成亮, 程华金等. (Mg,Cr)共掺LaFeO3基复合粉体的能带结构及其热辐射性能[J]. 发光学报, 2019,40(11): 1348-1358 DOI： 10.3788/fgxb20194011.1348.

LIU Qing-sheng, TAN Cheng-liang, CHENG Hua-jin etc. Energy Band Structure and Thermal Radiation Properties of (Mg,Cr) Codoped LaFeO3 Based Composite Powders[J]. Chinese Journal of Luminescence, 2019,40(11): 1348-1358 DOI： 10.3788/fgxb20194011.1348.

摘要

采用高温固相烧结法在1 300℃反应2 h成功制备出钙钛矿型LaFe

0.75

0.25

和La

0.75

0.25

0.75

-Cr

0.25

粉体材料。通过XRD、FT-IR、SEM、XPS和Upward IntegratIRTM等对材料的物相结构和近中红外波段的发射性能进行分析表征，并应用第一性原理计算分析了其电子结构，研究影响发射率的理论机制。研究表明，粉体在1~5 m波段的发射率都出现上升，但Cr单掺试样的吸收率增幅不大，而Mg-Cr共掺粉体增幅较大，在近红外波区的吸收率在0.9以上。究其原因在于，Cr单掺后晶体发生畸变，但不增加自由载流子的浓度，Mg-Cr共掺后畸变加剧且生成较多氧空位和小极化子，强化了自由载流子的吸收。Cr 3d轨道与O 2p所形成的杂化能级和在近费米能级导带区的Cr 3d轨道造成了粉体禁带宽度变窄，Mg虽然未直接作用于带隙值，但间接改变了B位元素的形态，产生了更多的小极化子，因此与LaFeO

禁带宽度值（3.817 eV）相比，Mg-Cr共掺（0.109 eV）减小幅度最大，Cr单掺（2.406 eV）次之。

Abstract

Perovskite type LaFe

0.75

0.25

and La

0.75

0.25

0.75

0.25

powders were prepared by high temperature solid state reaction at 1 300℃ for 2 h. In order to study the theoretical mechanism affecting the emissivity

the phases structure of the material and the emission characteristics in near-infrared band were analyzed and characterized by XRD

FT-IR

SEM

XPS and Upward IntegratIRTM

etc

the electronic structure was analyzed by first-principles calculation. The results show that the emissivity of the powder in the 1-5 m band increases

but the absorption rate of the Cr single-doped sample increases little

while the Mg-Cr co-doped powder increases greatly

and the absorption rate in the near-infrared above 0.9. The reason is that the crystal is distorted after Cr single-doped

but the concentration of free carriers does not increase. After Mg-Cr co-doped

the distortion is intensified and more oxygen vacancies and small polarized molecules are formed

which enhance the free carriers absorbtion. The hybrid energy level that formed by orbitals of Cr 3d and O 2p causes the powder forbidden band width to be narrowed

the same as the Cr 3d orbital in the near-Fermi level conduction zone. Although Mg does not directly affect the band gap value

it indirectly changs the morphology of B-position elemens

and more small polarized molecules are produced. Therefore

comopared with the LafeO

band gap value (3.817 eV)

the Mg-Cr co-doped(0.109 eV) has the largest decrease

and the single-adoped(2.406 eV) secondly.

关键词

Keywords

references

HAN Z,LIU J,LI X W,et al.. Ca2+-doped LaCrO3:a novel energy-saving material with high infrared emissivity[J]. J. Am. Ceram. Soc., 2014,97(9):2705-2708.

ZHANG J Y,FAN X A,LU L,et al.. Ferrites based infrared radiation coatings with high emissivity and high thermal shock resistance and their application on energy-saving kettle[J]. Appl. Surf. Sci., 2015,344:223-229.

YE J K,BU C H,HAN Z,et al.. Flame-spraying synthesis and infrared emission property of Ca2+/Cr3+ doped LaAlO3 microspheres[J]. J. Eur. Ceram. Soc., 2015,35(11):3111-3118.

LI Z,ZHENG F,GONG H Q,et al.. Study on ZrSiO4-aluminosilicate glass coating with high infrared emissivity and anti-oxidation properties[J]. Compos. Commun., 2017,4:16-19.

TANG H,XIN T Z,SUN Q,et al.. Influence of FeSO4 concentration on thermal emissivity of coatings formed on titaniumalloy by micro-arc oxidation[J]. Appl. Surf. Sci., 2011,257(24):10839-10844.

WANG F Y,CHENG L F,MEI H,et al.. Effect of surface microstructures on the infrared emissivity of graphite[J]. Int.J. Thermophys., 2014,35(1):62-75.

HENG X D,MIN J,ZHU Z Q,et al.. Preparation of high emissivity NiCr2O4 powders with a spinel structure by spray drying[J]. Int. J. Min. Met. Mater., 2012,19(2):173-178.

HE X D,LI Y B,WANG L D,et al.. High emissivity coatings for high temperature application:progress and prospect[J]. Thin Solid Films, 2009,517(17):5120-5129.

ZOU D,CHU X S,WU F. Sol-gel synthesis and infrared radiation property of Li-substituted cordierite[J]. Ceram. Int., 2013,39(4):3585-3589.

WANG S M,KUANG F H,YAN Q Z,et al.. Crystallization and infrared radiation properties of iron ion doped cordierite glass-ceramics[J]. J. Alloys Compd., 2011,509(6):2819-2823.

WU X Y,YU H B,DONG H,et al.. Enhanced infrared radiation properties of CoFe2O4 by single Ce3+-doping with energy-efficient preparation[J]. Ceram. Int., 2014,40(4):5905-5911.

ZHANG Y,WEN D J. The effect of cation distribution on magnetic and infrared emission properties of RE3+,MnO2:CoZn(RE=La,Ce,Pr,Nd,Sm,Eu,Gd,Tb,and Dy) ferrite ceramics[J]. J. Am. Ceram. Soc., 2012,95(9):2919-2927.

ZHANG S Y,CAO Q X,MA X H,et al.. Effects of sintering temperatures on the infrared emissivity of La0.7Sr0.3MnO3[J].Appl. Surf. Sci., 2012,258(18):7036-7038.

王峰,布丛郝,叶建克,等. (Ca,Fe)共掺铈酸镧陶瓷的制备及红外辐射性能研究[J]. 无机材料学报, 2016,31(2):185-189. WANG F,BU C H,YE J K,et al.. Preparation and infrared radiation property of lanthanum-cerium oxide ceramics by (Ca,Fe) co-doping[J]. J. Inorg.Mater., 2016,31(2):185-189. (in Chinese)

周静,张枫,刘晓芳,等. Fe-Mn-Cu-Co尖晶石体系的电子结构与红外辐射特性[J]. 硅酸盐学报, 2002,30(5):545-549. ZHOU J,ZHANG F,LIU X F,et al.. Electron structure and infrared radiant characteristics of Fe-Mn-Co-Cu system spinel[J]. J. Chin. Ceram. Soc., 2002,30(5):545-549. (in Chinese)

ZHANG S Y,CAO Q X. Microwave absorbing performance and infrared emissivity of co-doped ZnO[J]. Adv. Mater. Res., 2012,399-401:880-885.

HAN Z,LI X W,YE J K,et al.. Significantly enhanced infrared emissivity of LaAlO3 by co-doping with Ca2+and Cr3+ for energy-saving applications[J]. J. Am. Ceram. Soc., 2015,98(8):2336-2339.

LIU H Z,OUYAN G J H,LIU Z G,et al.. Thermo-optical properties of LaMAl11O19(M=Mg,Mn,Fe) hexaaluminates for high-temperature thermal protection applications[J]. J. Am. Ceram. Soc., 2011,94(10):3195-3197.

LIU H Z,LIU Z G,OUYANG J H,et al.. Influences of lattice vibration and electron transition on thermal emissivity of Nd3+ doped LaMgAl11O19 hexaaluminates for metallic thermal protection system[J]. Appl. Phys. Lett., 2012,101(16):161903-1-4.

YANG L,LI G B,GAO G W,et al.. Effect of high concentration SO2 on four-way catalytic performance of La0.9Sr0.1Pd0.03-Mn0.97O3 perovskite catalysts[J]. RSC Adv., 2017,7(82):52352-52356.

HUSSAIN I,ANWAR M S,KIM J W,et al.. Influence of La addition on the structural,magnetic and magnetocaloric properties in Sr2-xLaxFeMoO6(0 x 0.3) double perovskite[J]. Ceram. Int., 2016,42(11):13098-13103.

XIA C,WANG B Y,MA Y,et al.. Industrial-grade rare-earth and perovskite oxide for high-performance electrolyte layer-free fuel cell[J]. J. Power Sources, 2016,307:270-279.

POVODEN-KARADENIZ E,GRUNDY A N,CHEN M,et al.. Thermodynamic assessment of the La-Fe-O system[J]. J. Phase Equilib. Diffus., 2009,30(4):351-366.

GUO T C,XU G Y,CHEN Y P,et al.. Effect of Ni20Cr alloy on infrared emissivity of inorganic silicate heat-resistant composite coatings[J]. Surf. Coat. Technol., 2016,288:46-51.

XIAO D,LI Z,ZHAO X M,et al.. Functional organoclay with high thermal stability and its synergistic effect on intumescent flame retardant polypropylene[J]. Appl. Clay Sci., 2017,143:192-198.

WANG S M. Effects of Fe on crystallization and properties of a new high infrared radiance glass-ceramics[J]. Environ. Sci. Technol., 2010,44(12):4816-4820.

TERESITAV M,MANIKANDAN A,JOSEPHINE B A,et al.. Electromagnetic properties and humidity-sensing studies of magnetically recoverable LaMgxFe1-xO3-perovskites nano-photocatalysts by sol-gel route[J]. J. Supercond. Nov. Magn., 2016,29(6):1691-1701.

BABREKAR H A,KULKARNI N V,JOG J P,et al.. Influence of filler size and morphology in controlling the thermal emissivity of aluminium/polymer composites for space applications[J]. Mater. Sci. Eng. B, 2010,168(1-3):40-44.

ZHOU T Y,ZHANG L,YANG H,et al.. Effects of sintering aids on the transparency and conversion efficiency of Cr4+ ions in Cr:YAG transparent ceramics[J]. J. Am. Ceram. Soc., 2015,98(8):2459-2464.

KUMAR Y,CHOUDHARYR J,SINGH A P,et al.. Evidence of quantum correction to conductivity in strained epitaxial LaNiO3 films[J]. J. Appl. Phys., 2010,108(8):083706-1-6.

税安泽,蔡洪兵,张全胜,等. 高发射率红外辐射涂料的制备与性能研究[J]. 人工晶体学报, 2010,39(4):1008-1013. SHUI A Z,CAI H B,ZHANG Q S,et al.. Study on preparation and properties of infrared radiant coatings with high emissivity[J]. J. Synth. Cryst., 2010,39(4):1008-1013. (in Chinese)

JEONG J H,SONG C G,KIM K H,et al.. Effect of Mn doping on particulate size and magnetic properties of LaFeO3 nanofiber synthesized by electrospinning[J]. J. Alloys Compd., 2018,749:599-604.

JONES A,ISLAM M S. Atomic-scale insight into LaFeO3 perovskite:defect nanoclusters and ion migration[J]. J. Phys. Chem. C, 2008,112(12):4455-4462.

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

钙钛矿结构B位双掺杂 LaMg_0.34Ni_xFe_0.66-xO₃的红外辐射性能

新型钴基空穴传输层助力高效钙钛矿发光二极管

稀土离子掺杂钙钛矿纳米晶的光学性质和应用

Sc₂(WO₄)₃：Er³⁺/Yb³⁺的上转换发光及其温度传感特性

应用于钙钛矿太阳能电池中金属氧化物电子传输材料的研究进展