Realization of Walnut-Shaped Particles with Macro-/Mesoporous Open Channels through Pore Architecture Manipulation and Their Use in Electrocatalytic Oxygen Reduction

被引：220

作者：

Guan, Bu Yuan ^{[1
]}

Zhang, Song Lin ^{[1
]}

Lou, Xiong Wen ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Chem & Biomed Engn, 62 Nanyang Dr, Singapore 637459, Singapore

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2018年 / 57卷 / 21期

关键词：

carbon materials; electrocatalysis; macro-/mesoporous materials; polydopamine; walnut-shaped; MESOPOROUS SILICA; NANOPARTICLES; SHELL; CORE; NANOSPHERES; CHEMISTRY; DESIGN; SIZE;

D O I：

10.1002/anie.201801876

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Herein we report a simple dual-soft-template approach to prepare walnut-shaped macro-/mesoporous polydopamine particles with diameter of ca. 270 nm, highly accessible bicontinuous channels and wide pore size distribution from ca. 20 nm to ca. 95 nm. This approach provides great opportunities to tailor the soft template-directed assembly processes and generate various polydopamine particles with controllable mesophase curvature. Walnut-shaped mesoporous carbon particles with large open mesochannels in the range of ca. 13 nm to ca. 50 nm can be fabricated by subsequent thermal treatment under nitrogen atmosphere. Lastly, we demonstrate that the as-derived walnut-shaped carbon particles manifest enhanced electrocatalytic performance for oxygen reduction reaction in alkaline electrolyte.

引用

页码：6176 / 6180

页数：5

共 40 条

[1]

[Anonymous], 2014, Angew. Chem. Int. Ed., DOI DOI 10.1002/ange.201403611

[2] Multiple Core-Shell Functionalized Colloidal Mesoporous Silica Nanoparticles [J].

Cauda, Valentina ;

Schlossbauer, Axel ;

Kecht, Johann ;

Zuerner, Andreas ;

Bein, Thomas .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (32) :11361-11370

[3] Synthesis and characterization of chiral mesoporous silica [J].

Che, S ;

Liu, Z ;

Ohsuna, T ;

Sakamoto, K ;

Terasaki, O ;

Tatsumi, T .

NATURE, 2004, 429 (6989) :281-284

[4] Colloidal HPMO Nanoparticles: Silica-Etching Chemistry Tailoring, Topological Transformation, and Nano-Biomedical Applications [J].

Chen, Yu ;

Xu, Pengfei ;

Chen, Hangrong ;

Li, Yongsheng ;

Bu, Wenbo ;

Shu, Zhu ;

Li, Yaping ;

Zhang, Jiamin ;

Zhang, Lingxia ;

Pan, Limin ;

Cui, Xiangzhi ;

Hua, Zile ;

Wang, Jin ;

Zhang, Linlin ;

Shi, Jianlin .

ADVANCED MATERIALS, 2013, 25 (22) :3100-3105

[5] Superparamagnetic high-magnetization microspheres with an Fe3O4@SiO2 core and perpendicularly aligned mesoporous SiO2 shell for removal of microcystins [J].

Deng, Yonghui ;

Qi, Dawei ;

Deng, Chunhui ;

Zhang, Xiangmin ;

Zhao, Dongyuan .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (01) :28-+

[6] Low-temperature strategy to synthesize highly ordered mesoporous silicas with very large pores [J].

Fan, J ;

Yu, CZ ;

Lei, J ;

Zhang, Q ;

Li, TC ;

Tu, B ;

Zhou, WZ ;

Zhao, DY .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (31) :10794-10795

[7] Formation of Mesoporous Heterostructured BiVO4/Bi2S3 Hollow Discoids with Enhanced Photoactivity [J].

Gao, Xuehui ;

Wu, Hao Bin ;

Zheng, Lingxia ;

Zhong, Yijun ;

Hu, Yong ;

Lou, Xiong Wen .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2014, 53 (23) :5917-5921

[8] Chemically Assisted Formation of Monolayer Colloidosomes on Functional Particles [J].

Guan, Bu Yuan ;

Yu, Le ;

Lou, Xiong Wen .

ADVANCED MATERIALS, 2016, 28 (43) :9596-9601

[9] Formation of Asymmetric Bowl-Like Mesoporous Particles via Emulsion-Induced Interface Anisotropic Assembly [J].

Guan, Bu Yuan ;

Yu, Le ;

Lou, Xiong Wen .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2016, 138 (35) :11306-11311

[10] Highly ordered periodic mesoporous organosilica nanoparticles with controllable pore structures [J].

Guan, Buyuan ;

Cui, Yan ;

Ren, Zhongyuan ;

Qiao, Zhen-an ;

Wang, Li ;

Liu, Yunling ;

Huo, Qisheng .

NANOSCALE, 2012, 4 (20) :6588-6596

← 1 2 3 4 →