Temperature-Programmed Precise Control over the Sizes of Carbon Nanospheres Based on Benzoxazine Chemistry

Shuai, Wang; Li, Wen‐Cui; Hao, Guang‐Ping; Hao, Yan; Sun, Qiang; Zhang, Xiangqian; Lu, An‐Hui

doi:10.1021/ja206333w

Cited by 245 publications

(180 citation statements)

References 58 publications

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“…From polybenzoxazine-based nanospheres, Wang et al obtained the CSs with sizes from 95nm up to 225 nm by a straightforward temperature programming process [16]. Based on hydrothermal carbonization of glucose, Chen et al prepared the CSs with sizes from 160 nm up to 400 nm, depending on the glucose concentration in the precursor solution [17].…”

Section: Introductionmentioning

confidence: 99%

Micro/nano-scaled carbon spheres based on hydrothermal carbonization of agarose

Liu

Wang

Zhao

et al. 2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Section: Introductionmentioning

confidence: 99%

Micro/nano-scaled carbon spheres based on hydrothermal carbonization of agarose

Liu

Wang

Zhao

et al. 2015

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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“…[ 53 ] Compared with the most widely used carbon precursor for the HCS hosts (e.g., phenol formaldehyde resin, saccharide, and dopamine), polybenzoxazine (PB) has been largely overlooked although recent literature suggests that PB-based polymer is an interesting precursor for N-doped carbon nanostructures. [ 54,55 ] We demonstrate for the fi rst time that PB can be applied into the Stöber coating method for the templating synthesis of N-HCS with the controllable structure parameters.…”

mentioning

confidence: 97%

From Hollow Carbon Spheres to N‐Doped Hollow Porous Carbon Bowls: Rational Design of Hollow Carbon Host for Li‐S Batteries

Pei

Zang

et al. 2016

Advanced Energy Materials

510

339

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rapidly growing topic in the sulfur/carbon cathodes. [15][16][17][24][25][26][27][28][29][30] Although the porous structures of HCS favor the sulfur loading and electrolyte transport, the interaction between the nonpolar carbon shell and polar polysulfi de intermediates is not enough to suppress the dissolution of polysulfi de intermediates. More importantly, when used as the electrode materials, the large inner cavity of HCS usually results in the relatively low volumetric energy densities. Such an inherent drawback of HCS is undesirable for practical applications. [ 31,32 ] Following the development trend of the sulfur/carbon cathodes, the design of HCS should focus on the following aspects: (i) ultrahigh surface area to maximize the electrolyte permeation and interaction between HCS and sulfur/polysulfi des; (ii) heteroatom doping (e.g., nitrogen) to enhance the electrical conductivity of HCS and chemisorption between HCS and polysulfi de intermediates; (iii) shape optimization to improve conductive pathway and volumetric energy densities; (iv) facile and low-cost methodology to facilitate the practical applications.As a special class of hollow structures, bowl-like structure is an ideal methodology to increase the packing density of HCS. When used as the electrode materials, hollow carbon bowls (HCB) stacked within each other are also benefi cial to forming a favorable conductive pathway. However, there has been little success in using HCB to directly achieve high-performance energy storage components. [ 33,34 ] Recent research has indicated the unique biomedical applications of HCB. [35][36][37] Unfortunately, the reported HCB usually exhibit a low specifi c surface area (about 700-1000 m 2 g −1 ), which is much lower than HCS reported previously. [15][16][17][24][25][26][27][28][29] Since the utilization of chemical bonding between heteroatom doped carbon host and polysulfi de intermediates has been recently demonstrated as an effective way to further reduce the dissolution of polysulfi de intermediates, [38][39][40][41][42][43][44] the reported HCB with pristine carbon shell is diffi cult to meet the requirement for bonding polysulfi de intermediates. Therefore, the desirable HCB should not only inherit the advantages of HCS but also fulfi ll all above requirements for S/HCS cathodes. From the point of structure design, N-doped HCB (N-HCB) with high specifi c surface areas would open new opportunities for the sulfur/carbon cathodes. However, a new and effective methodology is the necessary prerequisite to the targeted N-HCB.Here, we present a facile route to synthesize N-doped HCS (N-HCS) and its N-HCB counterparts. Since the structure parameters of HCS can be precisely controlled by the prefabricated templates, hard-templating method is one of the most important routes to synthesize HCS. [45][46][47][48][49][50][51][52] From early Rechargeable lithium-sulfur (Li-S) batteries with the theoretical specifi c energy (≈2600 Wh kg −1 ) have attracted considerable attention due to its favorable prospect for futu...

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“…[101,102] However the dispersion of particles has been an obstacle when it comes to applications, such as catalysis, supercapacitors, drug delivery, etc. [103,104] To solve the problem of low dispersibility, rendering the interface of particles to SLPL is an ideal solution. Herein, three typical strategies are introduced to fabricate SLPL particles.…”

Section: Slpl Interfaces In Zero Dimensionmentioning

confidence: 99%

Superlyophilic Interfaces and Their Applications

et al. 2017

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Superlyophilic interfaces denote interfaces displaying strong affinity to diverse liquids, including superhydrophilic, superoleophilic, and superamphiphilic interfaces. When coming in contact with these interfaces, water or oil droplets tend to spread completely with contact angles close to 0°, presenting versatile applications including self‐cleaning, antifogging, controllable liquid transport, liquid separation, and so forth. Inspired by nature, scientists have developed various kinds of artificial superlyophilic (SLPL) interfaces in the past decades. In terms of dimensional characteristics, the artificial SLPL interfaces can be divided into four categories: i) 0D particles, whose dispersibility or catalytic performance can be notably enhanced by superlyophilicity; ii) 1D micro‐/nanofibers or nanotubes/channels, which can efficiently transfer liquids with SLPL interfaces; iii) 2D flat SLPL interfaces, on which different functional molecules can be deposited uniformly, forming ultrathin and smooth films; and iv) 3D structures, which can be obtained by either constructing 0D, 1D, or 2D SLPL materials separately or directly fabricating random SLPL frameworks, and can always be used as functional coatings or bulk materials. Here, natural and artificial SLPL interfaces are briefly introduced, followed by a short discussion of the limit between lyophilicity and lyophobicity, and then a snapshot of methods to generate SLPL interfaces is given. Specific focus is placed on recent achievements of constructing SLPL interfaces from zero to three dimensions. Following that, broad applications of SLPL interfaces in commercial areas will be introduced. Finally, a short summary and outlook for future challenges in this field is presented.

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Temperature-Programmed Precise Control over the Sizes of Carbon Nanospheres Based on Benzoxazine Chemistry

Cited by 245 publications

References 58 publications

Micro/nano-scaled carbon spheres based on hydrothermal carbonization of agarose

Micro/nano-scaled carbon spheres based on hydrothermal carbonization of agarose

From Hollow Carbon Spheres to N‐Doped Hollow Porous Carbon Bowls: Rational Design of Hollow Carbon Host for Li‐S Batteries

Superlyophilic Interfaces and Their Applications

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