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  “Cubism” on the Nanoscale: From Squaric Acid to Porous Carbon Cubes

Mani, C. M., Berthold, T., & Fechler, N. (2016). “Cubism” on the Nanoscale: From Squaric Acid to Porous Carbon Cubes. Small, 12(21), 2906-2912. doi:10.1002/smll.201600284.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-33DE-7 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-6642-D
Genre: Journal Article

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2265712.pdf (Publisher version), 2MB
 
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Inside Front cover: Nanocubes: “Cubism” on the Nanoscale: From Squaric Acid to Porous Carbon Cubes (Small 21/2016)
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 Creators:
Mani, Christian Mbaya1, Author              
Berthold, Thomas1, Author              
Fechler, Nina1, Author              
Affiliations:
1Nina Fechler, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_2173643              

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Free keywords: carbon, composite, crystals, porosity, squaric acid, nanocubes
 Abstract: 3D cube-shaped composites and carbon microparticles with hierarchically porous structure are prepared by a facile template-free synthesis route. Via the coordination of zinc acetate dihydrate and squaric acid, porous 3D cubic crystalline particles of zinc squarate can be obtained. These are easily transformed into the respective zinc oxide carbon composites under preservation of the macromorphology by heat treatment. Washing of the composite materials results in hierarchically porous carbons with high surface areas (1295 m2 g–1) and large pore volumes (1.5 cm3 g−1) under full retention of the cube-like architecture of the initial crystals. The materials are shown to be promising electrode materials for supercapacitor applications with a specific capacitance of 133 F g−1 in H2SO4 at a scan rate of 5 mV s−1, while 67 of this specific capacitance is retained, when increasing the scan rate to 200 mV s−1.

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 Dates: 2016-04-072016-06-01
 Publication Status: Published in print
 Pages: -
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 Rev. Type: -
 Identifiers: DOI: 10.1002/smll.201600284
BibTex Citekey: SMLL:SMLL201600284
DOI: 10.1002/smll.201670106
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Title: Small
  Other : Small
Source Genre: Journal
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Publ. Info: Weinheim, Germany : Wiley
Pages: - Volume / Issue: 12 (21) Sequence Number: - Start / End Page: 2906 - 2912 Identifier: ISSN: 1613-6810