Analysis of reaction mixtures of perhydro-dibenzyltoluene using two-dimensional gas chromatography and single quadrupole gas chromatography

Operational Stability of a LOHC‐Based Hot Pressure Swing Reactor for Hydrogen Storage

“…A more detailed analytic study of the LOHC system dibenzyltoluene / perhydro dibenzyltoluene using 2D gas chromatography coupled with time of flight mass spectrometry (2D-GC-TOF-MS) and single quadrupole-mass spectrometry gas chromatogram system (GC-SQ-MS) was recently published by Modisha et al. [23] At the beginning of our experiments, a reference sample of the applied H0-DBT was taken at reaction temperature prior to any hydrogenation or dehydrogenation, which shows a LB-content of 0.3 mass % and a HB-content of 0.9 mass %. During our experiment the HB-content rises to 1.1 mass % after the first cycle to 1.6 mass % after the third cycle.…”

Insight into the adsorption of a liquid organic hydrogen carrier, perhydro-i-dibenzyltoluene (i = m, o, p), on Pt, Pd and PtPd planar surfaces

“…This observation is consistent with experimental observations, reported by Do et al 39 Perhydro-dibenzyltoluene is known to consist as a mixture of different isomers. 38,39,78 Surface-isomer congurations…”

“…For onboard vehicular applications, liquid organic hydrogen carriers (LOHCs) are proposed to be a safe and efficient way to store hydrogen because of the reversible hydrogenation and dehydrogenation processes that can be activated using a catalyst. 19,30,[33][34][35][36][37][38] Hydrogen storage in these carriers takes place when the hydrogen covalently binds onto liquid organic compounds that are unsaturated/aromatic (hydrogen lean) in the presence of a catalyst until it is fully saturated/aliphatic (hydrogen rich). This process is referred to as hydrogenation of the liquid carrier.…”

“…The properties of perhydro-dibenzyltoluene as a candidate LOHC have been intensively explored experimentally. 3,6,[36][37][38][39]41,[44][45][46] However, unlike other LOHCs, 5,19,23,40,[47][48][49][50][51][52] it has not yet been intensively explored theoretically. 39,41 Perhydro-dibenzyltoluene exists in different isomeric forms with different isomer congurations.…”

“…39,41 Perhydro-dibenzyltoluene exists in different isomeric forms with different isomer congurations. 38,39,41 Its isomer congurations can be classied into perhydro-i-dibenzyltoluene, where i ¼ meta (m), ortho (o) or para (p) (see Fig. 1).…”