Grüne Kohlenstoffwissenschaft: eine wissenschaftliche Grundlage für das Verknüpfen von Verarbeitung, Nutzung und Recycling der Kohlenstoffressourcen

He, Mingyuan; Sun, Yuhan; Han, Buxing

doi:10.1002/ange.201209384

Cited by 127 publications

(14 citation statements)

References 250 publications

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“…Along with fundamentally interesting 0D, 1D, and 2D allotropes, such as fullerenes, nanotubes and graphene, 3D porous carbon architectures are useful in many emerging energy related applications, [1,2] such as battery anodes, electrode materials for supercapacitors, and catalyst supports in fuel cells. [1,[7][8][9] Among those, activated and templated carbons are the most widely studied, but carbide-derived carbons (CDCs) produced by the thermal or thermochemical removal of metals from carbides have received much attention in the past decade. [1,[7][8][9] Among those, activated and templated carbons are the most widely studied, but carbide-derived carbons (CDCs) produced by the thermal or thermochemical removal of metals from carbides have received much attention in the past decade.…”

mentioning

confidence: 99%

Room‐Temperature Carbide‐Derived Carbon Synthesis by Electrochemical Etching of MAX Phases

Lukatskaya¹,

Halim²,

Dyatkin³

et al. 2014

Angew Chem Int Ed

162

102

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Porous carbons are widely used in energy storage and gas separation applications, but their synthesis always involves high temperatures. Herein we electrochemically selectively extract, at ambient temperature, the metal atoms from the ternary layered carbides, Ti3 AlC2 , Ti2 AlC and Ti3 SiC2 (MAX phases). The result is a predominantly amorphous carbide-derived carbon, with a narrow distribution of micropores. The latter is produced by placing the carbides in HF, HCl or NaCl solutions and applying anodic potentials. The pores that form when Ti3 AlC2 is etched in dilute HF are around 0.5 nm in diameter. This approach forgoes energy-intensive thermal treatments and presents a novel method for developing carbons with finely tuned pores for a variety of applications, such as supercapacitor, battery electrodes or CO2 capture.

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mentioning

confidence: 99%

Room‐Temperature Carbide‐Derived Carbon Synthesis by Electrochemical Etching of MAX Phases

Lukatskaya¹,

Halim²,

Dyatkin³

et al. 2014

Angew Chem Int Ed

162

102

View full text Add to dashboard Cite

show abstract

“…[2][3][4][5][6] In addition to their high surface areas and high conductivity, porous carbons are environmentally benign and show many attractive properties. [1,[7][8][9] Among those, activated and templated carbons are the most widely studied, but carbide-derived carbons (CDCs) produced by the thermal or thermochemical removal of metals from carbides have received much attention in the past decade. This method yields carbon materials with highly tunable porosities and surface areas, [10] electric properties, [11] and surface chemistries.…”

mentioning

confidence: 99%

Room‐Temperature Carbide‐Derived Carbon Synthesis by Electrochemical Etching of MAX Phases

et al. 2014

View full text Add to dashboard Cite

Porous carbons are widely used in energy storage and gas separation applications, but their synthesis always involves high temperatures. Herein we electrochemically selectively extract, at ambient temperature, the metal atoms from the ternary layered carbides, Ti 3 AlC 2 , Ti 2 AlC and Ti 3 SiC 2 (MAX phases). The result is a predominantly amorphous carbide-derived carbon, with a narrow distribution of micropores. The latter is produced by placing the carbides in HF, HCl or NaCl solutions and applying anodic potentials. The pores that form when Ti 3 AlC 2 is etched in dilute HF are around 0.5 nm in diameter. This approach forgoes energy-intensive thermal treatments and presents a novel method for developing carbons with finely tuned pores for a variety of applications, such as supercapacitor, battery electrodes or CO 2 capture.

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“…Er befasst sich in seiner Forschung mit grünen Lösungsmitteln. Seine neueste Veröffentlichung in der Angewandten Chemie ist ein Essay über eine grüne Kohlenstoffwissenschaft 5. Han gehört dem International Advisory Board von ChemSusChem an.…”

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On the Similarity and Dissimilarity between Photocatalytic Water Splitting and Photocatalytic Degradation of Pollutants

Pasternak

Paz

2013

ChemPhysChem

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The last four decades have shown a remarkable increase in scientific interest in photocatalysis as a tool for tackling the world's energy and waste problems. The apparent similarity between photocatalytic water splitting and photocatalytic degradation of pollutants, which have been studied so far by two different scientific communities, raises the question regarding the extent to which one may utilize knowledge obtained in one field for the benefit of the other. This review examines the common features and differences between the two areas. The main similarities stem from the common dependence on the absorption of photons and on subsequent charge-carrier dynamics. The main dissimilarities are linked to thermodynamics, the type of reactants and end products, and to the role of adsorption and desorption. At present the fundamental differences between storing energy and using it to solve environmental issues affect practical solutions. Yet, easy transfer of knowledge, research resources, and personnel between the two is not only possible but should be encouraged.

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Grüne Kohlenstoffwissenschaft: eine wissenschaftliche Grundlage für das Verknüpfen von Verarbeitung, Nutzung und Recycling der Kohlenstoffressourcen

Cited by 127 publications

References 250 publications

Room‐Temperature Carbide‐Derived Carbon Synthesis by Electrochemical Etching of MAX Phases

Room‐Temperature Carbide‐Derived Carbon Synthesis by Electrochemical Etching of MAX Phases

Room‐Temperature Carbide‐Derived Carbon Synthesis by Electrochemical Etching of MAX Phases

On the Similarity and Dissimilarity between Photocatalytic Water Splitting and Photocatalytic Degradation of Pollutants

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