TY - JOUR
T1 - Assembly of cerium-based coordination polymer into variant polycrystalline 2D-3D CeO2-x nanostructures
AU - S. Mofarah, Sajjad
AU - Adabifiroozjaei, Esmaeil
AU - Wang, Yuan
AU - Arandiyan, Hamidreza
AU - Pardehkhorram, Raheleh
AU - Yao, Yin
AU - Assadi, M. Hussein N.
AU - Mehmood, Rashid
AU - Chen, Wen Fan
AU - Tsounis, Constantine
AU - Scott, Jason
AU - Lim, Sean
AU - Webster, Richard
AU - Zhong, Vicki
AU - Xu, Yuwen
AU - Koshy, Pramod
AU - Sorrell, Charles C.
PY - 2020/3/7
Y1 - 2020/3/7
N2 - Precise control over the morphology of nanomaterials is critical yet challenging. The present work reports an efficient approach to tailor the architecture of nanostructures. The process involves rapid disassembly/reassembly of an unstable metal-based coordination polymer (MCP) by controlling the kinetics of the reassembly process. The synthesis procedure delivers unprecedented polycrystalline nanostructures, e.g., holey 2D CeO2-x nanosheets, with precisely tailored thicknesses in the range of 10-100 nm, and hollow 3D pseudo-octahedra and spheres. The consequent high surface areas and pore volumes, short diffusion distances, and high defect densities of the holey 2D CeO2-x indicate significant densities of active sites. This holey architecture exhibits rapid CO conversion and outstanding solar light photocatalytic performance. This approach of directed assembly offers a template-free, controllable, and cost-effective approach to achieve engineered CeO2-x architectures, which are nearly impossible through existing approaches.
AB - Precise control over the morphology of nanomaterials is critical yet challenging. The present work reports an efficient approach to tailor the architecture of nanostructures. The process involves rapid disassembly/reassembly of an unstable metal-based coordination polymer (MCP) by controlling the kinetics of the reassembly process. The synthesis procedure delivers unprecedented polycrystalline nanostructures, e.g., holey 2D CeO2-x nanosheets, with precisely tailored thicknesses in the range of 10-100 nm, and hollow 3D pseudo-octahedra and spheres. The consequent high surface areas and pore volumes, short diffusion distances, and high defect densities of the holey 2D CeO2-x indicate significant densities of active sites. This holey architecture exhibits rapid CO conversion and outstanding solar light photocatalytic performance. This approach of directed assembly offers a template-free, controllable, and cost-effective approach to achieve engineered CeO2-x architectures, which are nearly impossible through existing approaches.
UR - http://www.scopus.com/inward/record.url?scp=85081247751&partnerID=8YFLogxK
U2 - 10.1039/c9ta11961b
DO - 10.1039/c9ta11961b
M3 - Article
AN - SCOPUS:85081247751
SN - 2050-7488
VL - 8
SP - 4753
EP - 4763
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
IS - 9
ER -