Remarkably improved electrochemical hydrogen storage by multi-walled carbon nanotubes decorated with nanoporous bimetallic Fe–Ag/TiO<sub>2</sub> nanoparticles

Akbarzadeh, Raziyeh; Ghaedi, Mehrorang; Kokhdan, Syamak Nasiri; Vashaee, Daryoosh

doi:10.1039/c8dt03897j

Cited by 44 publications

(13 citation statements)

References 63 publications

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“…Ag nanoparticles have received significant attention owing to their unique volume effect and quantum size as well as their high conductivity, excellent catalytic performance and broad spectrum of antimicrobial activities [1,2]. Ag nanoparticles have been extensively used in nonaqueous conductive ink [3], hydrogen sorption and storage [4], antibacterial materials [5], bone tissue regeneration and wound repair [6,7], etc. Thus, polymer/Ag nanocomposites have widely been applied in a variety of areas, such as the microelectronics, optoelectronics, magnetic materials, catalysis, chemical sensors and biology [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Effect of Silver Nanoparticles on the Microstructure, Non-Isothermal Crystallization Behavior and Antibacterial Activity of Polyoxymethylene

Yicheng

Yang²,

Huang

et al. 2020

Polymers

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Silver (Ag) nanoparticles were synthesized by a facile route in the presence of oleic acid and n-propylamine. It was shown that the average primary size of the as-synthesized Ag nanoparticles was approximately 10 nm and the surface of as-synthesized Ag nanoparticles was capped with monolayer surfactants with the content of 19.6%. Based on as-synthesized Ag nanoparticles, polyoxymethylene (POM)/Ag nanocomposites were prepared. The influence of Ag nanoparticles on non-isothermal crystallization behavior of POM was investigated by differential scanning calorimetry (DSC). The Jeziorny, Jeziorny-modified Avrami, Ozawa, Liu and Mo, Ziabicki and Kissinger models were applied to analyze the non-isothermal melt crystallization data of POM/Ag nanocomposites. Results of half time (t1/2), crystallization rate parameter (CRP), crystallization rate function (K(T)), kinetic parameter (F(T)), the kinetic crystallizability at unit cooling rate (GZ) and the crystallization activation energy (∆E) were determined. Small amounts of Ag nanoparticles dispersed into POM matrix were shown to act as heterogeneous nuclei, which could enhance the crystallization rate of POM, increase the number of POM spherulites and reduce POM spherulites size. However, the higher loading of Ag nanoparticles were easily aggregated, which restrained POM crystallization to some degree. Furthermore, the POM/Ag nanocomposites showed robust antibacterial activity against Escherichia coli and Staphylococcus aureus.

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Section: Introductionmentioning

confidence: 99%

Effect of Silver Nanoparticles on the Microstructure, Non-Isothermal Crystallization Behavior and Antibacterial Activity of Polyoxymethylene

Yicheng

Yang²,

Huang

et al. 2020

Polymers

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“…It was concluded that nanoparticles metal oxide could be effectively used to enhance the hydrogen adsorption capacity of MWCNTs via spillover mechanism. 33 Akbarzadeh et al 46 investigated the hydrogen storage of Fe-Ag/TiO2/ MWCNT nanocomposites prepared by hydrothermal method. The hydrogen storage capacity of the nanocomposites was found to be 10.94 wt%, 45 using electrochemical technique at ambient temperature and pressure in 6.0 M KOH solution.…”

Section: Hydrogen Storage Materialsmentioning

confidence: 99%

Recent advancement in consolidation of MOFs as absorbents for hydrogen storage

2021

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Metal-organic frameworks (MOF) have emerged as a promising material for green engineering applications due to their attractive properties. But the successful implementation of this material in the field of fuel cell technologies is still a challenge. Researchers have reported more than 50% reduction in experimental bulk density of compacted MOFs relatively to their theoretical crystal density. This has resulted in reduction of gravimetric and volumetric H 2 storage capacities of MOFs. Significant experimental research should be directed toward the consolidation of MOFs to meet (6.5 wt%; 50 g/L) 2025 DoE target for onboard H 2 storage systems. We present an overview of green engineering materials for hydrogen storage systems. The review also summarizes recent advancement in the consolidation of MOFs as absorbents for hydrogen storage. The influence of densification techniques on MOFs textural properties, mechanical stability were discussed. Hydrogen storage capacity of both powder and densified high-performance MOFs were presented.

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“…One of the highest storage capacities currently reported for this technology is 10.94 wt.% (3.6 kWh/kg) at room temperature, which was achieved by coating carbon nanotubes with bimetallic iron silver and titanium oxide particles. The capacitor was able to sustain the storage capability for 20 cycles [25]. Despite the recent advances, review articles conclude, that this technology is not yet market ready.…”

Section: Carbon Nanomaterialsmentioning

confidence: 99%

Comparison of Hydrogen Powertrains with the Battery Powered Electric Vehicle and Investigation of Small-Scale Local Hydrogen Production Using Renewable Energy

Handwerker

Wellnitz

Marzbani³

2021

Hydrogen

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Climate change is one of the major problems that people face in this century, with fossil fuel combustion engines being huge contributors. Currently, the battery powered electric vehicle is considered the predecessor, while hydrogen vehicles only have an insignificant market share. To evaluate if this is justified, different hydrogen power train technologies are analyzed and compared to the battery powered electric vehicle. Even though most research focuses on the hydrogen fuel cells, it is shown that, despite the lower efficiency, the often-neglected hydrogen combustion engine could be the right solution for transitioning away from fossil fuels. This is mainly due to the lower costs and possibility of the use of existing manufacturing infrastructure. To achieve a similar level of refueling comfort as with the battery powered electric vehicle, the economic and technological aspects of the local small-scale hydrogen production are being investigated. Due to the low efficiency and high prices for the required components, this domestically produced hydrogen cannot compete with hydrogen produced from fossil fuels on a larger scale.

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Remarkably improved electrochemical hydrogen storage by multi-walled carbon nanotubes decorated with nanoporous bimetallic Fe–Ag/TiO₂ nanoparticles

Abstract: The hydrogen storage capacity of a (0.04)Fe–Ag/TiO2/CNT electrode is 10.94 wt%, which is nearly 5 times higher than pristine MWCNTs.

Cited by 44 publications

References 63 publications

Effect of Silver Nanoparticles on the Microstructure, Non-Isothermal Crystallization Behavior and Antibacterial Activity of Polyoxymethylene

Effect of Silver Nanoparticles on the Microstructure, Non-Isothermal Crystallization Behavior and Antibacterial Activity of Polyoxymethylene

Recent advancement in consolidation of MOFs as absorbents for hydrogen storage

Comparison of Hydrogen Powertrains with the Battery Powered Electric Vehicle and Investigation of Small-Scale Local Hydrogen Production Using Renewable Energy

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Remarkably improved electrochemical hydrogen storage by multi-walled carbon nanotubes decorated with nanoporous bimetallic Fe–Ag/TiO2 nanoparticles

Abstract: The hydrogen storage capacity of a (0.04)Fe–Ag/TiO2/CNT electrode is 10.94 wt%, which is nearly 5 times higher than pristine MWCNTs.

Cited by 44 publications

References 63 publications

Effect of Silver Nanoparticles on the Microstructure, Non-Isothermal Crystallization Behavior and Antibacterial Activity of Polyoxymethylene

Effect of Silver Nanoparticles on the Microstructure, Non-Isothermal Crystallization Behavior and Antibacterial Activity of Polyoxymethylene

Recent advancement in consolidation of MOFs as absorbents for hydrogen storage

Comparison of Hydrogen Powertrains with the Battery Powered Electric Vehicle and Investigation of Small-Scale Local Hydrogen Production Using Renewable Energy

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Product

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Remarkably improved electrochemical hydrogen storage by multi-walled carbon nanotubes decorated with nanoporous bimetallic Fe–Ag/TiO₂ nanoparticles