Hydrogen Storage: Thermochemical Studies of N-Alkylcarbazoles and Their Derivatives as a Potential Liquid Organic Hydrogen Carriers

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Emel'Yanenko VN, Varfolomeev MA, Verevkin SP, Stark K, Müller K, Müller M, Bösmann A, Wasserscheid P, Arlt W
Zeitschrift: Journal of Physical Chemistry C
Verlag: American Chemical Society
Jahr der Veröffentlichung: 2015
Band: 119
Heftnummer: 47
Seitenbereich: 26381-26389
ISSN: 1932-7447


Abstract


Although N-ethylcarbazole is considered as a most promising potential liquid organic hydrogen carriers (LOHC) substance, a major drawback for stationary and particularly mobile applications is its high melting point of 343 K. Study of other possible N-alkylcarbazole-derivatives having lower melting points but keeping a high storage density is of practical importance. This contribution presents thermochemical properties (enthalpy of formation, enthalpy of vaporization, enthalpy of sublimation, and fusion enthalpy) for N-alkylcarbazoles (with alkyl = isopropyl, n-propyl, and n-butyl) derived from experiments in order to investigate the applicability of the carbazole derivatives as potential LOHCs. Additionally, high-level quantum chemical calculations were applied to determine molar enthalpies of formation of the gaseous carbazole derivatives and thus validated the experimental findings. Using a combination of the quantum-chemical calculations with vaporization enthalpy data measured in this work, the standard molar liquid phase enthalpies of formation were derived for alkylcarbazole derivatives. Results of this study were applied for thermodynamic analysis of the liquid-phase reversible hydrogenation/dehydrogenation processes with N-alkylcarbazoles.



FAU-Autoren / FAU-Herausgeber

Arlt, Wolfgang Prof. Dr.-Ing.
Lehrstuhl für Thermische Verfahrenstechnik
Bösmann, Andreas Dr.
Lehrstuhl für Chemische Reaktionstechnik
Müller, Michael
Lehrstuhl für Chemische Reaktionstechnik
Müller, Karsten PD Dr.-Ing.
Lehrstuhl für Thermische Verfahrenstechnik
Stark, Katharina
Lehrstuhl für Thermische Verfahrenstechnik
Wasserscheid, Peter Prof. Dr.
Lehrstuhl für Chemische Reaktionstechnik


Autor(en) der externen Einrichtung(en)
Kazan (Volga region) Federal University / Казанский (Приволжский) федеральный университет
Universität Rostock


Zitierweisen

APA:
Emel'Yanenko, V.N., Varfolomeev, M.A., Verevkin, S.P., Stark, K., Müller, K., Müller, M.,... Arlt, W. (2015). Hydrogen Storage: Thermochemical Studies of N-Alkylcarbazoles and Their Derivatives as a Potential Liquid Organic Hydrogen Carriers. Journal of Physical Chemistry C, 119(47), 26381-26389. https://dx.doi.org/10.1021/acs.jpcc.5b10392

MLA:
Emel'Yanenko, Vladimir N., et al. "Hydrogen Storage: Thermochemical Studies of N-Alkylcarbazoles and Their Derivatives as a Potential Liquid Organic Hydrogen Carriers." Journal of Physical Chemistry C 119.47 (2015): 26381-26389.

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Zuletzt aktualisiert 2018-07-08 um 14:09