A general route to nanocrystal kebabs periodically assembled on stretched flexible polymer shish

Abstract

Organic-inorganic 1D periodic necklace-like nanostructures are fabricated using confined synthesis of inorganic nanocrystals.

Hollow Structures Based on Prussian Blue and Its Analogs for Electrochemical Energy Storage and Conversion

“…Ordered and complex architectures have been constructed from NPs of noble metals and other compounds, [97][98][99][100][101][102][103][104] but it is still challenging to organize PBA NPs into such superstructures. [105] Nai et al explored a novel strategy to assemble anisotropic Co-Fe PBA NPs into open frame-like superstructures in a one-pot synthesis.…”

Metal–Organic Framework (MOF) Nanorods, Nanotubes, and Nanowires

“…[25][26][27] As aresult, ZIF-8 has been the prototypical material for constructing MOF nano-and superstructures. [31][32][33] On the other hand, 1D nanostructures with controllable morphologies and architectures are in general more difficult to achieve than their 0D counterparts, [34,35] and examples of 1D ZIF-8 structures are thus relatively scarce,w hich are mainly obtained through bottom-up solution synthesis templated by polymer [36,37] or inorganic [38][39][40] 1D nanostructures,as well as through top-down strategies including self-assembly of ZIF-8 nanocrystals under an external electric field [41] and electrospinning from polymer mixture solutions. [31][32][33] On the other hand, 1D nanostructures with controllable morphologies and architectures are in general more difficult to achieve than their 0D counterparts, [34,35] and examples of 1D ZIF-8 structures are thus relatively scarce,w hich are mainly obtained through bottom-up solution synthesis templated by polymer [36,37] or inorganic [38][39][40] 1D nanostructures,as well as through top-down strategies including self-assembly of ZIF-8 nanocrystals under an external electric field [41] and electrospinning from polymer mixture solutions.…”

Monodisperse Dual‐Functional Upconversion Nanoparticles Enabled Near‐Infrared Organolead Halide Perovskite Solar Cells

“…Thestar-like PA A-b-PEO diblock copolymer was synthesized by atom transfer radical polymerization (ATRP) of tert-butyl acrylate using 21Br-b-CD as am acroinitiator, followed by aclick reaction with alkyne-terminated PEO and hydrolysis in trifluoroacetic acid (see the Methods Section in the Supporting Information, Figures S1-S3). [22,23] Thes trong coordination bonding between the carboxyl functional groups of PA Ab locks and the rare-earth metallic ions of the NaYF 4 :Yb/Er precursors (i.e., CF 3 COONa, Y(CF 3 COO) 3 , Yb(CF 3 COO) 3 ,a nd Er(CF 3 COO) 3 )a llowed the preferential incorporation of precursors within the regime occupied by inner PA Ab locks of the star-like PA A-b-PEO diblock copolymer. Thethermal decomposition of rare-earth metallic trifluoroacetates within the nanoreactor at ar elatively high temperature promoted the nucleation of NaYF 4 :Yb/Er upconversion nanocrystals and finally grew into uniform NaYF 4 :Yb/Er UCNPs.A st he surface of the UCNPs are intimately covered by PEO blocks that are originally covalently bonded to inner PA Ablocks,the NaYF 4 :Yb/Er UCNPs possess an excellent solubility in hydrophilic solvents with long-term stability.M ore importantly,s uch direct capping of PEO chains on the surface of NaYF 4 :Yb/Er UCNPs not only simplifies the purification process of the resulting nano-particles because they dispense with the need for ligand exchange,b ut also facilitates the manufacturing of the NaYF 4 :Yb/Er mesoporous electrode as the PEO ligands render the formation of relatively thick interlayers between UCNPs as compared with small molecular ligands,o ffering ap otential route to relatively large-sized mesoporosity after the removal of the PEO ligands.…”