A Bird's Eye view on process and engineering aspects of hydrogen storage

Sreedhar, I.; Kamani, Krutarth; Kamani, Bansi M.; Reddy, Benjaram M.; Venugopal, A.

doi:10.1016/j.rser.2018.04.028

Cited by 101 publications

(60 citation statements)

References 392 publications

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“…Recently, hydrogen as a carbon‐free fuel has gained increasing popularity as an ideal alternative energy vector, owing to its high calorific power density per mass (based on the combustion reaction H 2 + 1/2O 2 → 2H 2 O, 142 kJ/mol) (three times the amount by weight stored in gasoline) and its combustion product being only water. The efficiency of hydrogen is 60%, which is higher than that of gasoline (22%) or diesel (45%) . However, hydrogen is gaseous with a volumetric hydrogen density of 0.089 g/L at STP, which is 2700 times less than that of gasoline .…”

Section: Introductionmentioning

confidence: 91%

“…This requires elevated pressures and low temperature . Hydrogen storage via chemical reactions is based on the covalent bonding of hydrogen on materials . This type of material consists of ammonia, formic acid, boron‐based hydrides, metal hydrides, and complex hydrides .…”

Section: Introductionmentioning

confidence: 99%

“…The efficiency of hydrogen is 60%, which is higher than that of gasoline (22%) or diesel (45%). 2,3 However, hydrogen is gaseous with a volumetric hydrogen density of 0.089 g/L at STP, 4 which is 2700 times less than that of gasoline. 5 Hydrogen has a low ignition energy (0.02 mJ in air), a wide explosion concentration range (4%-75%), and a large flame propagation speed.…”

Section: Introductionmentioning

confidence: 99%

“…4,13,16 Hydrogen storage via chemical reactions is based on the covalent bonding of hydrogen on materials. 3 This type of material consists of ammonia, 3 formic acid, 1 boron-based hydrides, 17 metal hydrides, 18 and complex hydrides. 10 Storing hydrogen under electrochemical conditions is primarily achieved via cyclic voltammetry (CV), and the amount of absorbed hydrogen is related to the value of applied potential.…”

Section: Introductionmentioning

confidence: 99%

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Pd‐Ni/Cd loaded PPy/Ti composite electrode: Synthesis, characterization, and application for hydrogen storage

et al. 2019

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Summary A wide compositional range of Pd‐Ni/Cd on polypyrrole (PPy)‐modified Ti plates (Pd‐Ni/Cd/PPy/Ti) was fabricated via electrochemical deposition. The hydrogen absorption properties of the prepared Pd‐Ni/Cd/PPy/Ti electrodes were evaluated using cyclic voltammetry and chronoamperometry in acidic media. The optimal Pd36‐Ni7/Cd57/PPy/Ti electrode achieved a hydrogen storage capacity of 331.3 mC cm−2 mg−1 and an H/Pd ratio of 0.77. The enhancement of the hydrogen storage was attributed to a synergistic effect between the Pd‐Ni/Cd catalysts. The surface morphology, crystallinity, and chemical composition of the Pd‐Ni/Cd/PPy/Ti electrode were characterized using scanning electron microscope (SEM), X‐ray diffraction (XRD), and X‐ray photoelectron spectroscopy (XPS), respectively. Hydrogen spillover occurred on the trimetallic catalysts, and secondary hydrogen spillover occurred on the PPy/Ti support. The enhanced hydrogen sorption capacity was due to both the synergistic effect of the trimetallic catalysts and the assistance of PPy, making Pd‐Ni/Cd/PPy/Ti a promising hydrogen storage material.

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Section: Introductionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Pd‐Ni/Cd loaded PPy/Ti composite electrode: Synthesis, characterization, and application for hydrogen storage

et al. 2019

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“…However, hydrogen has not been widely used as an energy source because its storage is challenging. There are economic and safety concerns associated with the compressed and cryogenic liquid hydrogen 9,10 , therefore reversible hydrogen storage in chemical bonds via catalytic hydrogenation/dehydrogenation reactions is a promising technique 11,12 . Formic acid [13][14][15][16] , formaldehyde 17,18 , and methanol [19][20][21][22][23] have been extensively studied as molecular hydrogen carriers.…”

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confidence: 99%

Reversible interconversion between methanol-diamine and diamide for hydrogen storage based on manganese catalyzed (de)hydrogenation

Shao

Liu

et al. 2020

Nat Commun

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The development of cost-effective, sustainable, and efficient catalysts for liquid organic hydrogen carrier systems is a significant goal. However, all the reported liquid organic hydrogen carrier systems relied on the use of precious metal catalysts. Herein, a liquid organic hydrogen carrier system based on non-noble metal catalysis was established. The Mn-catalyzed dehydrogenative coupling of methanol and N,N'-dimethylethylenediamine to form N,N'-(ethane-1,2-diyl)bis(N-methylformamide), and the reverse hydrogenation reaction constitute a hydrogen storage system with a theoretical hydrogen capacity of 5.3 wt%. A rechargeable hydrogen storage could be achieved by a subsequent hydrogenation of the resulting dehydrogenation mixture to regenerate the H 2 -rich compound. The maximum selectivity for the dehydrogenative amide formation was 97%.

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