title: Single-catalyst high-weight% hydrogen storage in an N-heterocycle synthesized from lignin hydrogenolysis products and ammonia.
abstract: Large-scale energy storage and the utilization of biomass as a sustainable carbon source are global challenges of this century. The reversible storage of hydrogen covalently bound in chemical compounds is a particularly promising energy storage technology. For this, compounds that can be sustainably synthesized and that permit high-weight% hydrogen storage would be highly desirable. Herein, we report that catalytically modified lignin, an indigestible, abundantly available and hitherto barely used biomass, can be harnessed to reversibly store hydrogen. A novel reusable bimetallic catalyst has been developed, which is able to hydrogenate and dehydrogenate N-heterocycles most efficiently. Furthermore, a particular N-heterocycle has been identified that can be synthesized catalytically in one step from the main lignin hydrogenolysis product and ammonia, and in which the new bimetallic catalyst allows multiple cycles of high-weight% hydrogen storage.
authors.affiliation: Lehrstuhl für Anorganische Chemie II-Katalysatordesign, Universität Bayreuth, 95440 Bayreuth, Germany.
authors.forename: Daniel
authors.initials: D
authors.lastname: Forberg
authors.affiliation: Lehrstuhl für Anorganische Chemie II-Katalysatordesign, Universität Bayreuth, 95440 Bayreuth, Germany.
authors.forename: Tobias
authors.initials: T
authors.lastname: Schwob
authors.affiliation: Lehrstuhl für Anorganische Chemie II-Katalysatordesign, Universität Bayreuth, 95440 Bayreuth, Germany.|Department of Chemistry, SBA School of Science and Engineering, Lahore University of Management Sciences (LUMS), Lahore 54792, Pakistan.
authors.forename: Muhammad
authors.initials: M
authors.lastname: Zaheer
authors.affiliation: Lehrstuhl für Anorganische Chemie II-Katalysatordesign, Universität Bayreuth, 95440 Bayreuth, Germany.
authors.forename: Martin
authors.initials: M
authors.lastname: Friedrich
authors.affiliation: Bayerisches Geoinstitut, Universität Bayreuth, 95440 Bayreuth, Germany.
authors.forename: Nobuyoshi
authors.initials: N
authors.lastname: Miyajima
authors.affiliation: Lehrstuhl für Anorganische Chemie II-Katalysatordesign, Universität Bayreuth, 95440 Bayreuth, Germany.
authors.forename: Rhett
authors.initials: R
authors.lastname: Kempe