Spiral self-assembly of lamellar micelles into multi-shelled hollow nanospheres with unique chiral architecture

Liang, Peipei; Peng, Huarong; Liu, Yu; Wang, Xiao; Hung, Chin‐Te; Zhao, Zaiwang; Chen, Gang; Li, Wei; Mai, Liqiang; Zhao, Dongyuan

doi:10.1126/sciadv.abi7403

Cited by 73 publications

(49 citation statements)

References 72 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The soft micelles-directed assembly methods from amphiphilic surfactants, such as hexadecyltrimethylammonium bromide (CTAB), Pluronic F127 triblock copolymers, polystyrene- block -poly(ethylene oxide) (PS–PEO) and poly(ethylene oxide- block -methyl methacrylate) (PMMA–PEO), are potential for synthesizing the desirable mesoporous superstructures owing to their great capability of creating mesopores for materials. ,− In the past three decades, these soft micelles-directed protocols are widely used to synthesize various functional ordered mesoporous materials, , while very recently, great attention has been paid to synthesizing mesoporous supraparticles with unique hierarchical structure, new pore configuration, and fascinating properties. So far, several hollow or core–shell-type mesoporous supraparticles have been synthesized by micelle-directed assembly strategies. − However, the obtained mesopores in these supraparticles are typically thick multilayered, and the configuration of these mesopores is of merely ring-like morphology. − Such two features of the mesopores for these conventional porous supraparticles are extremely unfavorable in applications.…”

Section: Introductionmentioning

confidence: 99%

Constructing Unique Mesoporous Carbon Superstructures via Monomicelle Interface Confined Assembly

et al. 2022

Self Cite

View full text Add to dashboard Cite

Constructing hierarchical three-dimensional (3D) mesostructures with unique pore structure, controllable morphology, highly accessible surface area, and appealing functionality remains a great challenge in materials science. Here, we report a monomicelle interface confined assembly approach to fabricate an unprecedented type of 3D mesoporous N-doped carbon superstructure for the first time. In this hierarchical structure, a large hollow locates in the center (∼300 nm in diameter), and an ultrathin monolayer of spherical mesopores (∼22 nm) uniformly distributes on the hollow shells. Meanwhile, a small hole (4.0–4.5 nm) is also created on the interior surface of each small spherical mesopore, enabling the superstructure to be totally interconnected. Vitally, such interconnected porous supraparticles exhibit ultrahigh accessible surface area (685 m2 g–1) and good underwater aerophilicity due to the abundant spherical mesopores. Additionally, the number (70–150) of spherical mesopores, particle size (22 and 42 nm), and shell thickness (4.0–26 nm) of the supraparticles can all be accurately manipulated. Besides this spherical morphology, other configurations involving 3D hollow nanovesicles and 2D nanosheets were also obtained. Finally, we manifest the mesoporous carbon superstructure as an advanced electrocatalytic material with a half-wave potential of 0.82 V (vs RHE), equivalent to the value of the commercial Pt/C electrode, and notable durability for oxygen reduction reaction (ORR).

show abstract

Section: Introductionmentioning

confidence: 99%

Constructing Unique Mesoporous Carbon Superstructures via Monomicelle Interface Confined Assembly

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…Apart from silica, mesoporous carbon nanomaterials have also emerged on the basis of an organic–organic assembly approach that opened the curtain of soft-templating synthesis of mesoporous organic polymers. Certain monomicelle-based assembly methods have been developed to construct a series of uniform carbon architectures such as mesoporous nanospheres, monolayers, and spirals . The “monomicelle assembly” methodology is a strong and powerful toolbox in the precise synthesis field in which the pore building blocks are composite spherical micelles instead of conventional surfactant/block copolymer molecules.…”

mentioning

confidence: 99%

Functional Ordered Mesoporous Materials: Present and Future

Lan

Zhao

2022

Nano Lett.

Self Cite

View full text Add to dashboard Cite

“…Meanwhile, an average pore diameter of ∼45 nm (inset of Figure S7c), calculated by the Barrett–Joyner–Halenda approach, is close to the SEM result. The wide pore size distribution from 10 to 90 nm could be attributed to the random stacking of the SP-PPy cubosomes, which resulted in the formation of additional space with various sizes. , The chemical nature of SP-PPy was validated by X-ray photoelectron spectroscopy (XPS) measurements. The survey XPS spectrum indicated that SP-PPy mainly consisted of C, N, and O elements, and the N content was 14 wt % (Figure S9).…”

Section: Resultsmentioning

confidence: 99%

Porous Polymer Cubosomes with Ordered Single Primitive Bicontinuous Architecture and Their Sodium–Iodine Batteries

et al. 2022

View full text Add to dashboard Cite

Bicontinuous porous materials, which possess 3D interconnected pore channels facilitating a smooth mass transport, have attracted much interest in the fields of energy and catalysis. However, their synthesis remains very challenging. We report a general approach, using polymer cubosomes as the template, for the controllable synthesis of bicontinuous porous polymers with an ordered single primitive (SP) cubic structure, including polypyrrole (SP-PPy), poly-m-phenylenediamine (SP-PmPD), and polydopamine (SP-PDA). Specifically, the resultant SP-PPy had a unit cell parameter of 99 nm, pore diameter of 45 nm, and specific surface area of approximately 60 m 2 •g −1 . As a proof of concept, the I 2 -adsorbed SP-PPy was employed as the cathode materials of newly emerged Na−I 2 batteries, which delivered a record-high specific capacity (235 mA•h•g −1 at 0.5 C), excellent rate capability, and cycling stability (with a low capacity decay of 0.12% per cycle within 400 cycles at 1 C). The advantageous contributions of the bicontinuous structure and I 3 − adsorption mechanism of SP-PPy were revealed by a combination of ion diffusion experiments and theoretical calculations. This study opens a new avenue for the synthesis of porous polymers with new topologies, broadens the spectrum of bicontinuous-structured materials, and also develops a novel potential application for porous polymers.

show abstract

Spiral self-assembly of lamellar micelles into multi-shelled hollow nanospheres with unique chiral architecture

Abstract: Shearing flow induced spiral self-assembly of multi-shelled nanospheres with unusual chirality in block copolymer micelle system.

Cited by 73 publications

References 72 publications

Constructing Unique Mesoporous Carbon Superstructures via Monomicelle Interface Confined Assembly

Constructing Unique Mesoporous Carbon Superstructures via Monomicelle Interface Confined Assembly

Functional Ordered Mesoporous Materials: Present and Future

Porous Polymer Cubosomes with Ordered Single Primitive Bicontinuous Architecture and Their Sodium–Iodine Batteries

Contact Info

Product

Resources

About