Hydrogen energy future with formic acid: a renewable chemical hydrogen storage system

Singh, Ashish Kumar; Singh, Suryabhan; Kumar, Abhinav

doi:10.1039/c5cy01276g

Cited by 458 publications

(254 citation statements)

References 236 publications

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“…Several liquid H 2 carriers, such as aqueous boron and nitrogen-based compounds (Li/NaBH 4 and NH 3 BH 3 ) 9-15 and hydrous hydrazine (H 2 NNH 2 ·H 2 O) [16][17][18] , as well as alcohols [19][20][21][22] have received much attention. Within these liquid H 2 carriers, FA, recognized as a potential H 2 storage system in 1978 23 , is nowadays considered as one of the most outstanding materials for this application 1 . At first glance, this fact could not be ascribed to its relatively low H 2 content (4.4 wt.%), but advantageous properties such as its lowtoxicity and suitability for easy transportation, handling, and safe storage, as well as its useable/net capacity (defined as the effective H 2 content that can be recovered in the form of H 2 from a chemical H 2 storage system 24 ) make this molecule deserving numerous studies 1,[25][26][27][28][29][30][31][32] .…”

Section: Introductionmentioning

confidence: 99%

Screening of Carbon-Supported PdAg Nanoparticles in the Hydrogen Production from Formic Acid

Navlani‐García

Mori

Nozaki

et al. 2016

Ind. Eng. Chem. Res.

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A screening of carbon-supported PdAg nanoparticles (NPs) (PdAg/C) in the H 2 production from formic acid (FA) dehydrogenation was carried out by using uniform ~3-5 nm PdAg alloy NPs with a wide compositional range in terms of PVP/Metal and Pd/Ag ratios. The evaluation of the catalytic performance combined with the detailed characterization indicated the beneficial effect of the Ag incorporation and also revealed that the best performance achieved by Pd1Ag2/C (PVP/metal = 1) can be ascribed to its optimum composition and electronic features.

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Section: Introductionmentioning

confidence: 99%

Screening of Carbon-Supported PdAg Nanoparticles in the Hydrogen Production from Formic Acid

Navlani‐García

Mori

Nozaki

et al. 2016

Ind. Eng. Chem. Res.

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“…However, these reactions are difficult to control and can result in an explosion. Chemical hydrides, such as ammonia-borane456 and formic acid78, are leading candidates for new hydrogen storage materials because of their hydrogen content and highly efficient catalysts for producing H 2 from these molecules have been reported91011121314151617181920212223. However, for effective functioning, these catalysts often require heat energy91014 and anaerobic conditions1112141522.…”

mentioning

confidence: 99%

On-demand Hydrogen Production from Organosilanes at Ambient Temperature Using Heterogeneous Gold Catalysts

Mitsudome

Urayama

Maeno

et al. 2016

Sci Rep

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An environmentally friendly (“green”), H2-generation system was developed that involved hydrolytic oxidation of inexpensive organosilanes as hydrogen storage materials with newly developed heterogeneous gold nanoparticle catalysts. The gold catalyst functioned well at ambient temperature under aerobic conditions, providing efficient production of pure H2. The newly developed size-selective gold nanoparticle catalysts could be separated easily from the reaction mixture containing organosilanes, allowing an on/off-switchable H2-production by the introduction and removal of the catalyst. This is the first report of an on/off-switchable H2-production system employing hydrolytic oxidation of inexpensive organosilanes without requiring additional energy.

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“…[1][2][3][4][5] It is also important that the starting acid can be produced with high yields from renewable biomass by hydrolysis of cellulose 6 or by its oxidation. 5,7 Additionally, formic acid can be used directly for hydrogenation reactions instead of molecular hydrogen, providing the advantage of easier transportation and storage of the hydrogenating agent. 8,9 Now, supported noble metal catalysts containing metal nanoparticles are mostly applied for the dehydrogenation of formic acid into H 2 and CO 2 .…”

Section: Introductionmentioning

confidence: 99%

Single Atoms of Pt-Group Metals Stabilized by N-Doped Carbon Nanofibers for Efficient Hydrogen Production from Formic Acid

et al. 2016

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Formic acid is a valuable chemical derived from biomass, as it has a high hydrogen-storage capacity and appears to be an attractive source of hydrogen for various applications. Hydrogen production via formic acid decomposition is often based on using supported catalysts with Pt-group metal nanoparticles. In the present paper, we show that the decomposition of the acid proceeds more rapidly on single metal atoms (by up to one order of magnitude). These atoms can be obtained by rather simple means through anchoring Pt-group metals onto mesoporous N-functionalized carbon nanofibers. A thorough evaluation of the structure of the active site by aberration-corrected scanning transmission electron microscopy (ac-STEM) in high-angle annular dark field (HAADF) mode, by CO chemisorption, X-ray photoelectron spectroscopy (XPS) and quantum-chemical calculations reveals that the metal atom is coordinated by a pair of pyridinic nitrogen atoms at the edge of graphene sheets. The chelate binding provides an ionic/electron-deficient state of these atoms prevents their aggregation and thereby leads to an excellent stability under the reaction conditions. Catalysts with single atoms have also shown very high selectivity. Evidently, the findings can be extended to hydrogen production from other chemicals and can be helpful for improving other energy-related and environmentally benign catalytic processes.

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Hydrogen energy future with formic acid: a renewable chemical hydrogen storage system

Abstract: Formic acid, the simplest carboxylic acid, could serve as one of the better fuels for portable devices, vehicles and other energy-related applications in the future.

Cited by 458 publications

References 236 publications

Screening of Carbon-Supported PdAg Nanoparticles in the Hydrogen Production from Formic Acid

Screening of Carbon-Supported PdAg Nanoparticles in the Hydrogen Production from Formic Acid

On-demand Hydrogen Production from Organosilanes at Ambient Temperature Using Heterogeneous Gold Catalysts

Single Atoms of Pt-Group Metals Stabilized by N-Doped Carbon Nanofibers for Efficient Hydrogen Production from Formic Acid

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