Nanotunnel Structures within Metal Oxides Induce Active Sites for the Strong Self -Reduction of MnIV to MnII

被引：10

作者：

Ran, Weiguang ^{[1
]}

Wang, Lili ^{[1
]}

Xu, Hongwei ^{[1
]}

Kong, Xiaoying ^{[1
]}

Sun, Yuwei ^{[1
]}

Qu, Dan ^{[1
]}

Shi, Jinsheng ^{[1
]}

机构：

[1] Qingdao Agr Univ, Dept Chem & Pharmaceut Sci, Qingdao 266109, Peoples R China

来源：

INORGANIC CHEMISTRY | 2017年 / 56卷 / 06期

关键词：

LUMINESCENCE; EU3+; EU2+; PHOSPHORS; RED; AIR;

D O I：

10.1021/acs.inorgchem.6b03159

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Zn2SiO4, Zn2GeO4, and CdAl2O4 possess high electron density in their six-membered-ring nano tunnels, manganese from MnO2 was successfully doped into them, and green or blue phosphors were produced in air. It is nanotunnel A with high electron density that induces active sites for the reduction of Mn-IV. Mn-II is captured and reduced to Mn-II on active sites by seizing two electrons from native defect V-O(X) (V-O(X) + Mn4+ -> V-O + Mn2+). CdB4O7:0.02Mn(2+) was also synthesized from MnO2 or MnCO3 to confirm the role of nanotunnels. Such inorganic crystals with unique nanotunnel structure may bring more amazing performances in the field of materials in the future.

引用

页码：3127 / 3130

页数：4

共 12 条

[1] Synthesis, crystal structure, and luminescence properties of a novel green-yellow emitting phosphor LiZn1-xPO4:Mnx for light emitting diodes [J].

Chan, Ting-Shan ;

Liu, Ru-Shi ;

Baginskiy, Ivan .

CHEMISTRY OF MATERIALS, 2008, 20 (04) :1215-1217

[2] Reduction of Eu3+ to Eu2+ in NaCaPO4:Eu phosphors prepared in a non-reducing atmosphere [J].

Grandhe, Bhaskar Kumar ;

Bandi, Vengala Rao ;

Jang, Kiwan ;

Kim, Sang-Su ;

Shin, Dong-Soo ;

Lee, Yong-Ill ;

Lim, Jae-Min ;

Song, Taekwon .

JOURNAL OF ALLOYS AND COMPOUNDS, 2011, 509 (30) :7937-7942

[3] HF-Free Hydrothermal Route for Synthesis of Highly Efficient Narrow-Band Red Emitting Phosphor K2Si1-xF6:xMn4+ for Warm White Light-Emitting Diodes [J].

Huang, Lin ;

Zhu, Yiwen ;

Zhang, Xuejie ;

Zou, Rui ;

Pan, Fengjuan ;

Wang, Jing ;

Wu, Mingmei .

CHEMISTRY OF MATERIALS, 2016, 28 (05) :1495-1502

[4] Luminescence of native defects in Zn2GeO4 [J].

Liu, Zhongshi ;

Jing, Xiping ;

Wang, Lingxuan .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2007, 154 (06) :H500-H506

[5] Regulation of red to near-infrared emission in Mn2+ single doped magnesium zinc phosphate solid-solution phosphors by modification of the crystal field [J].

Ma, Y. Y. ;

Hu, J. Q. ;

Song, E. H. ;

Ye, S. ;

Zhang, Q. Y. .

JOURNAL OF MATERIALS CHEMISTRY C, 2015, 3 (48) :12443-12449

[6] Synthesis of narrow-band red-emitting K2SiF6:Mn4+ phosphors for a deep red monochromatic LED and ultrahigh color quality warm-white LEDs [J].

Oh, Ji Hye ;

Kang, Heejoon ;

Eo, Yun Jae ;

Park, Hoo Keun ;

Do, Young Rag .

JOURNAL OF MATERIALS CHEMISTRY C, 2015, 3 (03) :607-615

[7] Synthesis and luminescence study of Eu3+ in Zn2SiO4 nanocrystals [J].

Patra, A ;

Baker, GA ;

Baker, SN .

OPTICAL MATERIALS, 2004, 27 (01) :15-20

[8] Study on the reduction of Eu3+ → Eu2+ in Sr4Al14O25:: Eu prepared in air atmosphere [J].

Peng, MY ;

Pei, ZW ;

Hong, GY ;

Su, Q .

CHEMICAL PHYSICS LETTERS, 2003, 371 (1-2) :1-6

[9] The reduction of Eu3+ to Eu2+ in BaMgSiO4:Eu prepared in air and the luminescence of BaMgSiO4:Eu2+ phosphor [J].

Peng, MY ;

Pei, ZW ;

Hong, GY ;

Su, Q .

JOURNAL OF MATERIALS CHEMISTRY, 2003, 13 (05) :1202-1205

[10] Non-Rare-Earth BaMgAl10-2xO17:xMn4+,xMg2+: A Narrow-Band Red Phosphor for Use as a High-Power Warm w-LED [J].

Wang, Bo ;

Lin, Hang ;

Huang, Feng ;

Xu, Ju ;

Chen, Hui ;

Lin, Zebin ;

Wang, Yuansheng .

CHEMISTRY OF MATERIALS, 2016, 28 (10) :3515-3524

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