气候变化领域集成服务门户(CCPortal): Towards an efficient liquid organic hydrogen carrier fuel cell concept

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DOI	10.1039/c9ee01324e
	Towards an efficient liquid organic hydrogen carrier fuel cell concept
	Sievi G.; Geburtig D.; Skeledzic T.; Bösmann A.; Preuster P.; Brummel O.; Waidhas F.; Montero M.A.; Khanipour P.; Katsounaros I.; Libuda J.; Mayrhofer K.J.J.; Wasserscheid P.
发表日期	2019
ISSN	17545692
起始页码	2305
结束页码	2314
卷号	12 期号:7
英文摘要	The high temperature required for hydrogen release from Liquid Organic Hydrogen Carrier (LOHC) systems has been considered in the past as the main drawback of this otherwise highly attractive and fully infrastructure-compatible form of chemical hydrogen storage. According to the state-of-the art, the production of electrical energy from LOHC-bound hydrogen, e.g. from perhydro-dibenzyltoluene (H18-DBT), requires provision of the dehydrogenation enthalpy (e.g. 65 kJ mol-1 (H2) for H18-DBT) at a temperature level of 300 °C followed by purification of the released hydrogen for subsequent fuel cell operation. Here, we demonstrate that a combination of a heterogeneously catalysed transfer hydrogenation from H18-DBT to acetone and fuel cell operation with the resulting 2-propanol as a fuel, allows for an electrification of LOHC-bound hydrogen in high efficiency (>50%) and at surprisingly mild conditions (temperatures below 200 °C). Most importantly, our proposed new sequence does not require an external heat input as the transfer hydrogenation from H18-DBT to acetone is almost thermoneutral. In the PEMFC operation with 2-propanol, the endothermal proton release at the anode is compensated by the exothermic formation of water. Ideally the proposed sequence does not form and consume molecular H2 at any point which adds a very appealing safety feature to this way of producing electricity from LOHC-bound hydrogen, e.g. for applications on mobile platforms. © The Royal Society of Chemistry 2019.
英文关键词	Acetone; Fuel purification; Hydrogenation; Proton exchange membrane fuel cells (PEMFC); Chemical hydrogen storage; Electrical energy; Fuel cell operation; High temperature; Hydrogen carriers; Hydrogen release; Temperature level; Transfer hydrogenations; Hydrogen storage; chemical reaction; efficiency measurement; electrical power; electricity; energy efficiency; fuel cell; high temperature; hydrogen; operations technology; temperature effect
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/189870
作者单位	Forschungszentrum Jülich, Helmholtz-Institut Erlangen-Nürnberg für Erneuerbare Energien (IEK 11), Egerlandstrasse 3, Erlangen, 91058, Germany; Lehrstuhl für Chemische Reaktionstechnik, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Egerlandstrasse 3, Erlangen, 91058, Germany; Lehrstuhl für Physikalische Chemie 2, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Egerlandstrasse 3, Erlangen, 91058, Germany; Instituto de Química Aplicada Del Litoral, IQAL (UNL-CONICET), Programa de Electroquímica Aplicada e Ingeniería Electroquímica, PRELINE (FIQ-UNL), Santa Fe, Argentina; Erlangen Catalysis Resource Center (ECRC), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Egerlandstrasse 3, Erlangen, 91058, Germany
推荐引用方式 GB/T 7714	Sievi G.,Geburtig D.,Skeledzic T.,et al. Towards an efficient liquid organic hydrogen carrier fuel cell concept[J],2019,12(7).
APA	Sievi G..,Geburtig D..,Skeledzic T..,Bösmann A..,Preuster P..,...&Wasserscheid P..(2019).Towards an efficient liquid organic hydrogen carrier fuel cell concept.Energy & Environmental Science,12(7).
MLA	Sievi G.,et al."Towards an efficient liquid organic hydrogen carrier fuel cell concept".Energy & Environmental Science 12.7(2019).