Impact of surface modifications on hydrogen uptake by Fe@f-MWCNTs and Cu@f-MWCNTs at non-cryogenic temperatures

Konni, Madhavi; Dadhich, Anima S.; Mukkamala, Saratchandra Babu

doi:10.1016/j.ijhydene.2016.09.085

Cited by 35 publications

(8 citation statements)

References 18 publications

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“…Konni et al . [101] reported the incorporation of Fe and Cu in carboxylate functionalized MWCNTs (Fe@f-MWCNTs and Cu@f-MWCNTs) for improving H 2 storage. The study was conducted under different reaction conditions with respect to metal concentration and solvents.…”

Section: Mwcnts-containing Materials For H 2 Storagementioning

confidence: 99%

Characteristics of MOF, MWCNT and graphene containing materials for hydrogen storage: A review

Gangu

Maddila

Mukkamala

et al. 2019

Journal of Energy Chemistry

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195

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Section: Mwcnts-containing Materials For H 2 Storagementioning

confidence: 99%

Characteristics of MOF, MWCNT and graphene containing materials for hydrogen storage: A review

Gangu

Maddila

Mukkamala

et al. 2019

Journal of Energy Chemistry

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195

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“…In the present study, MIL-53 (Al) was synthesized by doping the ions of lithium. Adsorption isotherms of hydrogen at high pressure were performed at 253 and 298 K up to 70 bar pressure to determine doped lithium's effect on hydrogen storage at high-pressure capacity in these materials [41][42][43][44][45].…”

Section: Introductionmentioning

confidence: 99%

Hydrogen Sorption Behaviors on Lithium Doped MIL@53-Al at Non-Cryogenic Temperatures

Konni

Karnena

Mukkamala

2022

International Journal of Surface Engineering and Interdisciplinary Materials Science

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The current research work reports the methods that have been developed to dope the Lithium nanoparticles to the MIL@53-Al surface frameworks without inducing the structures. The prepared MIL@53-Al MOFs and Li/MIL/53-Al were characterized by XRD, TEM, SEM, BET, and TGA. The developed Lithium doped MIL@53-Al and MIL@53-Al were measured for the hydrogen sorption capacities at 298 and 253 K under a pressure of 75 bar. The study reports revealed that sorption capacities of MIL@53-Al enhanced significantly due to the doping of lithium ions; however, doping of these ions should be controlled for obtaining good uptake capacities as the higher concentrations of lithium might damage the frameworks of the synthesized materials. The lithium doping enhances the hydrogen uptake from 1.37 to 1.75 wt % at 253 K and 75 bar pressure.

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“…The operation can be simplified when magnetizing MWCNT is washed in aqueous solution using only a magnetic separator and this sort of treatment has been described several times. The MWCNT nanocomposites with magnetism were generally obtained by a solvothermal or coprecipitation method (Deng et al, 2012;Gao et al, 2013;Konni et al, 2017;Wang et al, 2019). Nevertheless, these procedures can be laborious, time consuming, and hazardous due to being multistep (Pourfadakari et al, 2016), using an irritating solution (e.g., ammonium hydroxide; Jamrozik et al, 2014), and requiring a high temperature (Sun et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

A novel fluorometric aptasensor based on carbon nanocomposite for sensitive detection of Escherichia coli O157:H7 in milk

Yang

Guo

et al. 2020

Journal of Dairy Science

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Escherichia coli O157:H7 is an extremely serious foodborne pathogen accounting for a vast number of hospitalizations. In this system, a simple, rapid, and safe compound method was developed based on carbonyl iron powder (CIP) and multiwalled carbon nanotubes (MWCNT). Then, the CIP@ MWCNT -based aptasensor was constructed by strong π-stacking between nanocomposite and aptamer, single-strand DNA, causing fluorescent quenching of the dye-labeled aptamer. The restoration of dye fluorescence could be achieved when aptamer came off the surface of the CIP@ MWCNT nanocomposite due to the presence of target bacteria. To the best of our knowledge, this fabrication of magnetic carbon nanotubes without irritating and corrosive reagents is described for the first time. The sensing platform was also an improvement on the conventional formation of the aptasensor between carbon materials and DNA aptamer. The nanocomposite was verified by diverse characterization of zeta potential, Fourier-transform infrared spectroscopy, transmission electron microscopy, and energy dispersive x-ray analysis. The CIP@ MWCNT -based aptasensor was an effective nanoplatform for quantitative detection of E. coli O157:H7, and was measured to have high specificity, good reproducibility, and strong stability. The aptasensor's capacity to quantify E. coli O157:H7 was as low as 7.15 × 10 3 cfu/mL in pure culture. The detection limit of E. coli O157:H7 was 3.15 × 10 2 cfu/ mL in contaminated milk after 1 h of pre-incubation. Hence, the developed assay is a new possibility for effective synthesis of nanocomposites and sensitive tests of foodborne pathogens in the dairy industry.

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Impact of surface modifications on hydrogen uptake by Fe@f-MWCNTs and Cu@f-MWCNTs at non-cryogenic temperatures

Cited by 35 publications

References 18 publications

Characteristics of MOF, MWCNT and graphene containing materials for hydrogen storage: A review

Characteristics of MOF, MWCNT and graphene containing materials for hydrogen storage: A review

Hydrogen Sorption Behaviors on Lithium Doped MIL@53-Al at Non-Cryogenic Temperatures

A novel fluorometric aptasensor based on carbon nanocomposite for sensitive detection of Escherichia coli O157:H7 in milk

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