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ACS Nano. 2014 Aug 26;8(8):8217-23. doi: 10.1021/nn502548m. Epub 2014 Aug 14.

Monolithic gyroidal mesoporous mixed titanium-niobium nitrides.

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Department of Chemistry and Chemical Biology, ‡Department of Materials Science and Engineering, §Department of Physics, ⊥Cornell High Energy Synchrotron Source (CHESS), and ∥Kavli Institute at Cornell for Nanoscale Science, Cornell University , Ithaca, New York 14853, United States.


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.

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