2 research outputs found
Controllable Fabrication of Coordination Polymer Particles (CPPs): A Bridge between Versatile Organic Building Blocks and Porous Copper-Based Inorganic Materials
Hierarchically micro-/nanostructured coordination polymer
[CuÂ(2,5-PDC)ÂH<sub>2</sub>O]<sub><i>n</i></sub> architectures
with tunable
morphologies have been successfully prepared by rationally adjusting
the preparation parameters, such as the reactant concentration, solvent,
surfactant, and reaction temperature. Using simple calcinations of
chosen shaped [CuÂ(2,5-PDC)ÂH<sub>2</sub>O]<sub><i>n</i></sub> architectures, we can obtain several porous copper-based inorganic
motifs, which show potential applications for the antibacterial field
and lithium ion batteries. Therein, CuO-1 can kill the Gram-positive
bacteria <i>Bacillus subtilis and Staphylococcus aureus</i> better than other materials. The value for initial discharge capacity
of CuO-3 (1160 mAh g<sup>–1</sup>) is higher than the theoretical
capacity (674 mAh g<sup>–1</sup>) and most copper oxide materials.
Besides, Cu/C composites also show intense application in the antibacterial
and Li-ions uptake-release field, which will provide a widely used
method to prepare the nanosystem of carbon-coating or carbon-compositing
materials by simple calcinations of shaped precursor coordination
polymer particles used under the proper temperature
Fabrication of Hierarchical Macroporous/Mesoporous Carbons via the Dual-Template Method and the Restriction Effect of Hard Template on Shrinkage of Mesoporous Polymers
A series of hierarchically ordered
macro-<b>/</b>mesoporous
polymer resins and macro-<b>/</b>mesoporous carbon monoliths
were synthesized using SiO<sub>2</sub> opal as a hard template for
the macropore, amphiphilic triblock copolymer PEO–PPO–PEO
as a soft template for the mesopore, and phenolic resin as a precursor
for the polymer or carbon. The obtained hierarchical macro-<b>/</b>mesoporous frameworks had highly periodic arrays of uniform macropores
that were surrounded by walls containing the mesoporous structures.
The mesoporous structure of the walls was adjusted using different
precursors for the synthesis of FDU-14, FDU-15, and FDU-16. Results
of the N<sub>2</sub> adsorption–desorption analysis showed
that the Brunauer–Emmett–Teller surface areas, the pore
volumes, and the mesopore sizes of the macro-<b>/</b>mesoporous
carbons were much larger than those of the FDU-14, FDU-15, and FDU-16
carbon materials. The mesopore size of the samples clearly increased
with the increasing heat-treatment temperature when the temperature
was below 700 °C. The results indicate that the SiO<sub>2</sub> hard template successfully restricted the shrinkage of the framework
during the thermosetting and carbonization process