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Monolithic gyroidal mesoporous mixed titanium-niobium nitrides.


ABSTRACT: Mesoporous transition metal nitrides are interesting materials for energy conversion and storage applications due to their conductivity and durability. We present ordered mixed titanium-niobium (8:2, 1:1) nitrides with gyroidal network structures synthesized from triblock terpolymer structure-directed mixed oxides. The materials retain both macroscopic integrity and mesoscale ordering despite heat treatment up to 600 °C, without a rigid carbon framework as a support. Furthermore, the gyroidal lattice parameters were varied by changing polymer molar mass. This synthesis strategy may prove useful in generating a variety of monolithic ordered mesoporous mixed oxides and nitrides for electrode and catalyst materials.

SUBMITTER: Robbins SW 

PROVIDER: S-EPMC4148156 | biostudies-literature | 2014 Aug

REPOSITORIES: biostudies-literature

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Monolithic gyroidal mesoporous mixed titanium-niobium nitrides.

Robbins Spencer W SW   Sai Hiroaki H   DiSalvo Francis J FJ   Gruner Sol M SM   Wiesner Ulrich U  

ACS nano 20140814 8


Mesoporous transition metal nitrides are interesting materials for energy conversion and storage applications due to their conductivity and durability. We present ordered mixed titanium-niobium (8:2, 1:1) nitrides with gyroidal network structures synthesized from triblock terpolymer structure-directed mixed oxides. The materials retain both macroscopic integrity and mesoscale ordering despite heat treatment up to 600 °C, without a rigid carbon framework as a support. Furthermore, the gyroidal la  ...[more]

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