Hydrogen storage in semiclathrate hydrates of tetrabutyl ammonium chloride and tetrabutyl phosphonium bromide

Johnny Deschamps; Didier Dalmazzone

doi:10.1021/je100146b

Hydrogen storage in semiclathrate hydrates of tetrabutyl ammonium chloride and tetrabutyl phosphonium bromide

Johnny Deschamps, Didier Dalmazzone

Unité Chimie et Procédés

Research output: Contribution to journal › Article › peer-review

Abstract

Original calorimetric and phase equilibrium properties for hydrogen + tetrabutylammonium bromide (TBAB), tetrabutylammonium chloride (TBACl), or tetrabutylphosphonium bromide (TBPB) semiclathrate hydrates were measured using differential scanning calorimetry under pressure. The dissociation temperatures of H₂ + TBACl and H₂ + TBPB semiclathrate hydrates are very close to the ambient temperature at low pressures around 15.0 MPa. H ₂ + TBACl and H₂ + TBPB systems therefore exhibit better and comparable stability than the H₂ + TBAB system at equivalent pressure, respectively. The amount of hydrogen stored in H₂ + TBACl and H₂ + TBPB semiclathrate hydrates was estimated in terms of the H₂-to-water mole ratio (n_H2/n_H2_O) calculated from disssociation enthalpies and (p, T) equilibrium data. In terms of mass fraction deduced from the ratio (n_H2/n_H2O, H ₂ + TBACl and H₂ + TBPB semiclathrate hydrates can store 0.12 % and 0.14 % of hydrogen, respectively. Moreover, the quantity of hydrogen stored in these two semiclathrate hydrates is significantly higher than that stored in the H₂ + TBAB system.

Original language	English
Pages (from-to)	3395-3399
Number of pages	5
Journal	Journal of Chemical and Engineering Data
Volume	55
Issue number	9
DOIs	https://doi.org/10.1021/je100146b
Publication status	Published - 9 Sept 2010
Externally published	Yes

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@article{8108d66274024e80a0b3c3ef471e7d91,

title = "Hydrogen storage in semiclathrate hydrates of tetrabutyl ammonium chloride and tetrabutyl phosphonium bromide",

abstract = "Original calorimetric and phase equilibrium properties for hydrogen + tetrabutylammonium bromide (TBAB), tetrabutylammonium chloride (TBACl), or tetrabutylphosphonium bromide (TBPB) semiclathrate hydrates were measured using differential scanning calorimetry under pressure. The dissociation temperatures of H2 + TBACl and H2 + TBPB semiclathrate hydrates are very close to the ambient temperature at low pressures around 15.0 MPa. H 2 + TBACl and H2 + TBPB systems therefore exhibit better and comparable stability than the H2 + TBAB system at equivalent pressure, respectively. The amount of hydrogen stored in H2 + TBACl and H2 + TBPB semiclathrate hydrates was estimated in terms of the H2-to-water mole ratio (nH2/nH2O) calculated from disssociation enthalpies and (p, T) equilibrium data. In terms of mass fraction deduced from the ratio (nH2/nH2O, H 2 + TBACl and H2 + TBPB semiclathrate hydrates can store 0.12 \% and 0.14 \% of hydrogen, respectively. Moreover, the quantity of hydrogen stored in these two semiclathrate hydrates is significantly higher than that stored in the H2 + TBAB system.",

author = "Johnny Deschamps and Didier Dalmazzone",

year = "2010",

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doi = "10.1021/je100146b",

language = "English",

volume = "55",

pages = "3395--3399",

journal = "Journal of Chemical and Engineering Data",

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T1 - Hydrogen storage in semiclathrate hydrates of tetrabutyl ammonium chloride and tetrabutyl phosphonium bromide

AU - Deschamps, Johnny

AU - Dalmazzone, Didier

PY - 2010/9/9

Y1 - 2010/9/9

N2 - Original calorimetric and phase equilibrium properties for hydrogen + tetrabutylammonium bromide (TBAB), tetrabutylammonium chloride (TBACl), or tetrabutylphosphonium bromide (TBPB) semiclathrate hydrates were measured using differential scanning calorimetry under pressure. The dissociation temperatures of H2 + TBACl and H2 + TBPB semiclathrate hydrates are very close to the ambient temperature at low pressures around 15.0 MPa. H 2 + TBACl and H2 + TBPB systems therefore exhibit better and comparable stability than the H2 + TBAB system at equivalent pressure, respectively. The amount of hydrogen stored in H2 + TBACl and H2 + TBPB semiclathrate hydrates was estimated in terms of the H2-to-water mole ratio (nH2/nH2O) calculated from disssociation enthalpies and (p, T) equilibrium data. In terms of mass fraction deduced from the ratio (nH2/nH2O, H 2 + TBACl and H2 + TBPB semiclathrate hydrates can store 0.12 % and 0.14 % of hydrogen, respectively. Moreover, the quantity of hydrogen stored in these two semiclathrate hydrates is significantly higher than that stored in the H2 + TBAB system.

AB - Original calorimetric and phase equilibrium properties for hydrogen + tetrabutylammonium bromide (TBAB), tetrabutylammonium chloride (TBACl), or tetrabutylphosphonium bromide (TBPB) semiclathrate hydrates were measured using differential scanning calorimetry under pressure. The dissociation temperatures of H2 + TBACl and H2 + TBPB semiclathrate hydrates are very close to the ambient temperature at low pressures around 15.0 MPa. H 2 + TBACl and H2 + TBPB systems therefore exhibit better and comparable stability than the H2 + TBAB system at equivalent pressure, respectively. The amount of hydrogen stored in H2 + TBACl and H2 + TBPB semiclathrate hydrates was estimated in terms of the H2-to-water mole ratio (nH2/nH2O) calculated from disssociation enthalpies and (p, T) equilibrium data. In terms of mass fraction deduced from the ratio (nH2/nH2O, H 2 + TBACl and H2 + TBPB semiclathrate hydrates can store 0.12 % and 0.14 % of hydrogen, respectively. Moreover, the quantity of hydrogen stored in these two semiclathrate hydrates is significantly higher than that stored in the H2 + TBAB system.

U2 - 10.1021/je100146b

DO - 10.1021/je100146b

M3 - Article

AN - SCOPUS:77956501277

SN - 0021-9568

VL - 55

SP - 3395

EP - 3399

JO - Journal of Chemical and Engineering Data

JF - Journal of Chemical and Engineering Data

IS - 9

ER -

Hydrogen storage in semiclathrate hydrates of tetrabutyl ammonium chloride and tetrabutyl phosphonium bromide

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