Mesoporous Nickel Ferrites with Spinel Structure Prepared by an Aerosol Spray Pyrolysis Method for Photocatalytic Hydrogen Evolution

被引：75

作者：

Hong, Dachao ^{[1
]}

Yamada, Yusuke ^{[1
]}

Sheehan, Margaret ^{[2
]}

Shikano, Shinya ^{[1
]}

Kuo, Chun-Hong ^{[2
]}

Tian, Ming ^{[2
]}

Tsung, Chia-Kuang ^{[2
]}

Fukuzumi, Shunichi ^{[1
]}

机构：

[1] Osaka Univ, Japan Sci & Technol Agcy, ALCA, Grad Sch Engn,Dept Mat & Life Sci, Suita, Osaka 5650871, Japan

[2] Boston Coll, Merkert Chem Ctr, Dept Chem, 2609 Beacon St, Chestnut Hill, MA 02467 USA

来源：

ACS SUSTAINABLE CHEMISTRY & ENGINEERING | 2014年 / 2卷 / 11期

关键词：

Nickel ferrite; Hydrogen evolution; Photocatalysis; Metal oxide sphere; Crystallinilty; Surface area; Ramp rate; VISIBLE-LIGHT-DRIVEN; WATER OXIDATION; SURFACE-AREA; NIFE2O4; ROUTE; CATALYST;

D O I：

10.1021/sc500484b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Submicron-sized mesoporous nickel ferrite (NiFe2O4) spheres were prepared by an aerosol spray pyrolysis method using Pluronic F127 as a structure-directing agent, and their photocatalytic performance for hydrogen (H-2) evolution was examined in an aqueous MeOH solution by visible light irradiation (lambda > 420 nm). The structure of the spherical mesoporous nickel ferrites was studied by transmission electron microscopy, powder X-ray diffraction, and N-2 adsorption desorption-desorption isotherm measurements. Mesoporous NiFe2O4 spheres of high specific surface area (278 m(2) g(-1)) with a highly crystalline framework were prepared by adjusting the amount of structure-directing agent and the calcining condition. High photocatalytic activity of mesoporous NiFe2O4 for H-2 evolution from water with methanol was achieved due to the combination of high surface area and high crystallinity of the nickel ferrites.

引用

页码：2588 / 2594

页数：7

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