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Soft-to-hard templating to well-dispersed N-doped mesoporous carbon nanospheres via one-pot carbon/silica source copolymerization

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  • Materials Science
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Science Bulletin

Abstract

Here we report a new approach referred as “soft-to-hard templating” strategy via the copolymerization of carbon source (dopamine) and silica source (tetraethyl orthosilicate) for the synthesis of well dispersed N-doped mesoporous carbon nanospheres (MCNs), which exhibit high performance for electrochemical supercapacitor. This method overcomes the shortcoming of uncontrolled dispersity and complicated procedures of soft- or hard-templating methods, respectively. Moreover, the synthesized MCNs feature enriched heteroatom N-doping and easy functionalization by noble-metal nanoparticles during the one-pot synthesis. All the above characters make the as-prepared MCNs a promising platform in a variety of applications. To demonstrate the applicability of the synthesized nitrogen-doped MCNs, this material has been employed as an electrode for high-performance electrochemical supercapacitor, which shows a capacitance of 223 and 140 F/g at current densities of 0.5 and 10 A/g in 1 mol/L KOH electrolyte, respectively.

摘要

本文报道了一种新的“由软到硬的模板”策略,通过碳源(多巴胺)和硅源(正硅酸乙酯)的共聚合合成了分散性良好的N掺杂介孔碳纳米球(MCNs)。该方法克服了复杂软模板和硬模板法难以控制MCNs分散性的问题。获得的MCNs含有丰富的N掺杂物种,且易于实现贵金属纳米颗粒的负载。该MCNs可应用于多领域。本文研究了其超电容特性:在1 mol/L NaOH溶液中,当电流密度为0.4和10 A/g时,该MCNs电极电容可分别达到223和140 F/g。

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Acknowledgments

This work was supported by the National Basic Research Program of China (2013CB933200), the National High Technology Research and Development Program of China (2012AA062703), the National Natural Science Foundation of China (21177137) and the Youth Innovation Promotion Association CAS (2012200).

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Authors and Affiliations

  1. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China

    Qinglu Kong, Lingxia Zhang, Min Wang, Mengli Li, Heliang Yao & Jianlin Shi

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  1. Qinglu Kong
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  2. Lingxia Zhang
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  3. Min Wang
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  4. Mengli Li
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  5. Heliang Yao
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Correspondence to Lingxia Zhang or Jianlin Shi.

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Kong, Q., Zhang, L., Wang, M. et al. Soft-to-hard templating to well-dispersed N-doped mesoporous carbon nanospheres via one-pot carbon/silica source copolymerization. Sci. Bull. 61, 1195–1201 (2016). https://doi.org/10.1007/s11434-016-1119-6

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  • DOI: https://doi.org/10.1007/s11434-016-1119-6

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