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Ionothermal templat...
Ionothermal template transformations for preparation of tubular porous nitrogen doped carbons
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- Pampel, J. (författare)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Mehmood, A. (författare)
- Dongguk University,Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Antonietti, M. (författare)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Fellinger, Tim-Patrick, 1983 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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Max Planck Gesellschaft zur Förderung der Wissenschaften eV. (MPG) Dongguk University (creator_code:org_t)
- 2017
- 2017
- Engelska.
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Ingår i: Materials Horizons. - : Royal Society of Chemistry (RSC). - 2051-6347 .- 2051-6355. ; 4:3, s. 493-501
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https://pubs.rsc.org...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- A facile approach for the Zn-free ionothermal synthesis of highly porous nitrogen doped carbons possessing tubular transport pores is demonstrated employing adenine as biomass derived precursor and surfactant together with calcium or magnesium chloride hydrates as combined solvent-porogens. The overall process can be regarded as a combination of liquid templating by means of sol-gel synthesis with hard templating via in situ transformation of the melt into solid fibrous salt crystals. The employment of MgCl2 center dot 6H(2)O results in tubular nitrogen doped carbons showing anisotropic porosity and very high specific surface areas up to 2780 m(2) g(-1) and total pore volumes up to 3.86 cm(3) g(-1). The formation of the tubular porosity can be connected to a cooperative effect between in situ formed, solid hydrate phases and their modulation with adenine and its polycondensation products. The combination of high SSA with the channel-like porosity generates a highly accessible structure making those carbon materials appealing for applications that demand good mass transport. The obtained materials were exemplarily employed as supercapacitor electrodes resulting in high specific capacitances up to 238 F g(-1) at a low scan rate of 2 mV s(-1) and up to 144 F g(-1) at a high scan rate of 200 mV s(-1).
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
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