共 33 条
Room Temperature Synthesis of Heptazine-Based Microporous Polymer Networks as Photocatalysts for Hydrogen Evolution
被引:134
作者:
Kailasam, Kamalakannan
[1
]
Schmidt, Johannes
[1
]
Bildirir, Hakan
[1
]
Zhang, Guigang
[2
,3
]
Blechert, Siegfried
[4
]
Wang, Xinchen
[2
,3
]
Thomas, Arne
[1
]
机构:
[1] Tech Univ Berlin, Dept Chem Funct Mat, D-10623 Berlin, Germany
[2] Fuzhou Univ, State Key Lab Breeding Base, Fujian Prov Key Lab Photocatalysis, Res Inst Photocatalysis, Fuzhou 350002, Peoples R China
[3] Fuzhou Univ, Coll Chem & Chem Engn, Fuzhou 350002, Peoples R China
[4] Tech Univ Berlin, Dept Chem Organ Chem, D-10623 Berlin, Germany
基金:
中国国家自然科学基金;
关键词:
conjugated microporous polymers;
covalent organic frameworks;
graphitic carbon nitride;
heptazine;
photocatalytic water splitting;
GRAPHITIC CARBON NITRIDE;
COVALENT ORGANIC FRAMEWORKS;
VISIBLE-LIGHT;
CONJUGATED POLYMERS;
CATALYSIS;
DERIVATIVES;
CHEMISTRY;
TRIAZINE;
STORAGE;
WATER;
D O I:
10.1002/marc.201300227
中图分类号:
O63 [高分子化学(高聚物)];
学科分类号:
070305 ;
080501 ;
081704 ;
摘要:
Two emerging material classes are combined in this work, namely polymeric carbon nitrides and microporous polymer networks. The former, polymeric carbon nitrides, are composed of amine-bridged heptazine moieties and showed interesting performance as a metal-free photocatalyst. These materials have, however, to be prepared at high temperatures, making control of their chemical structure difficult. The latter, microporous polymer networks have received increasing interest due to their high surface area, giving rise to interesting applications in gas storage or catalysis. Here, the central building block of carbon nitrides, a functionalized heptazine as monomer, and tecton are used to create microporous polymer networks. The resulting heptazine-based microporous polymers show high porosity, while their chemical structure resembles the ones of carbon nitrides. The polymers show activity for the photocatalytic production of hydrogen from water, even under visible light illumination.
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页码:1008 / 1013
页数:6
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