TY - JOUR
T1 - 稀土基亚纳米材料
AU - Shi, Yuang
AU - Liu, Qingda
AU - Zhang, Simin
AU - Wang, Xun
N1 - Publisher Copyright:
© 2021, Editorial Office of Journal of the Chinese Society of Rare Earths. All right reserved.
PY - 2021/6
Y1 - 2021/6
N2 - Sub-nanomaterials are emerging materials developing recently. One-dimensional sub-nanomaterials (sub-nanowires, SNWs) possess unique polymer-like properties. So we used the polymer characterization and processing methods to study SNWs. For instance, GdOOH SNWs could be fabricated to high tensile strength fibers or large-area nonwoven mats by electrospinning; moreover, by wet-spinning, we could fabricate birefractive SNW films which emitted polarized fluorescent light when quantum dots added. In another work, without adding any chiral reagents, we prepared the macroscopic helical assemblies of SNWs through an evaporation-induced self-assembly process. Furthermore, we observed circular polarized luminescentlight from the helical assemblies with achiral organic fluorescent dye additives, because of chirality transfer from the helical assemblies to achiral organic molecules. Polyoxometalate clusters (POMs) can be regarded as zero-dimensional sub-nanomaterials. After adding rare earth elements and ligands, they self-assembled to SNWs. Furthermore, when we tuned the pH, the self-assembly behavior of POMs changed, resulting in nanorings and three-dimensional superstructures which performed enhanced activity in electrochemical sensing fields. These works revealed the huge potential of new functional SNWs in optic, mechanic and catalytic areas.
AB - Sub-nanomaterials are emerging materials developing recently. One-dimensional sub-nanomaterials (sub-nanowires, SNWs) possess unique polymer-like properties. So we used the polymer characterization and processing methods to study SNWs. For instance, GdOOH SNWs could be fabricated to high tensile strength fibers or large-area nonwoven mats by electrospinning; moreover, by wet-spinning, we could fabricate birefractive SNW films which emitted polarized fluorescent light when quantum dots added. In another work, without adding any chiral reagents, we prepared the macroscopic helical assemblies of SNWs through an evaporation-induced self-assembly process. Furthermore, we observed circular polarized luminescentlight from the helical assemblies with achiral organic fluorescent dye additives, because of chirality transfer from the helical assemblies to achiral organic molecules. Polyoxometalate clusters (POMs) can be regarded as zero-dimensional sub-nanomaterials. After adding rare earth elements and ligands, they self-assembled to SNWs. Furthermore, when we tuned the pH, the self-assembly behavior of POMs changed, resulting in nanorings and three-dimensional superstructures which performed enhanced activity in electrochemical sensing fields. These works revealed the huge potential of new functional SNWs in optic, mechanic and catalytic areas.
KW - GdOOH
KW - Polyoxometalates
KW - Rare earth doping
KW - Self-assembly
KW - Sub-nano
UR - http://www.scopus.com/inward/record.url?scp=85107712743&partnerID=8YFLogxK
U2 - 10.11785/S1000-4343.20210308
DO - 10.11785/S1000-4343.20210308
M3 - 文章
AN - SCOPUS:85107712743
SN - 1000-4343
VL - 39
SP - 447
EP - 455
JO - Zhongguo Xitu Xuebao/Journal of the Chinese Rare Earth Society
JF - Zhongguo Xitu Xuebao/Journal of the Chinese Rare Earth Society
IS - 3
ER -