New application of glycerin from a photochemical approach : Dihydrogen formation from aqueous glycerin by use of giant polyoxometalate photocatalysts
New application of glycerin from a photochemical approach : Dihydrogen formation from aqueous glycerin by use of giant polyoxometalate photocatalysts
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DOI：
10.1021/ef050157i
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发表时间：
2005-07
期刊：
影响因子：
5.3
通讯作者：
Hisao Hori and;K. Koike;Yoshitaka Sakai;H. Murakami;and Kunihiko Hayashi;K. Nomiya
中科院分区：
文献类型：
--
作者：
Hisao Hori and;K. Koike;Yoshitaka Sakai;H. Murakami;and Kunihiko Hayashi;K. Nomiya
通过巨型多金属氧酸盐配合物Na21K4[{P2W15Ti3O57.5(OH)3}4Cl]·104H2O和Na18H15[{P2W15Ti3O59(OH)3}4{μ3-Ti(OH)3}4Cl]·105H2O实现了从含水甘油光催化生成H2 开发甘油的新应用，甘油是一种伴随生物柴油生产而供应过剩的化合物。这是利用光催化剂和甘油催化形成H2的第一个例子，也是巨型多金属氧酸盐配合物光化学应用的第一个例子。催化反应在室温下在紫外可见光照射下进行，无需使用任何助催化剂。反应机理可以通过配合物、水和甘油之间的氧化还原反应来解释。
Photocatalytic H2 formation from aqueous glycerin was achieved over giant polyoxometalate complexes Na21K4[{P2W15Ti3O57.5(OH)3}4Cl]·104H2O and Na18H15[{P2W15Ti3O59(OH)3}4{μ3-Ti(OH)3}4Cl]·105H2O to develop a new application for glycerin, an oversupplied compound accompanying biodiesel production. This is the first example of the catalytic formation of H2 by use of a photocatalyst and glycerin and is also the first example of a photochemical application of giant polyoxometalate complexes. The catalytic reactions proceed at room temperature under irradiation with UV−visible light without the use of any cocatalyst. The reaction mechanism can be explained by redox reactions between the complexes, water, and glycerin.