Synthesis of VTMS(X)-HMS-3 mesoporous ordered silica for hydrogen storage

Owens, Dorothy; Han, Aijie; Sun, Luyi; Mao, Yuanbing

doi:10.1016/j.ijhydene.2014.12.100

Cited by 12 publications

(5 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although from Table , it is seen that P5 powder has lower pore wall thickness, the rupturing of mesopore structure upon the application of high sonication energy makes it a very low surface area powder. Figure shows the comparison of H 2 adsorption capacity of SBA‐15 powders synthesized in this work with other reported values of hydrogen adsorption by other different materials . It is clear that the present result of hydrogen adsorption capacity of the high surface area powder P4 is higher than the reported value till date.…”

Section: Resultsmentioning

confidence: 54%

Synthesis of high surface area mesoporous silica SBA‐15 for hydrogen storage application

Bera

Das

2018

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

In the present report, mesoporous silica SBA‐15 was synthesized by different methods such as room temperature aging, hydrothermal, and sonication‐mediated hydrothermal methods. The effect of different time and temperature on the synthesis method was investigated by conventional characterization techniques. The powders synthesized by different methods showed different properties, mainly in morphology and pore volume. In comparison to others, the powder synthesized by the hydrothermal method at 100°C for 48 hours showed exceptionally high surface area of 3274 m2/g. To date, as per our knowledge, no such value was reported in literature. Finally, the powders were characterized by H2 storage capacity by the adsorption‐desorption method using 99.999% H2. The hydrogen adsorption capacity of the same powder was observed at 6.02 wt%. Also, this value seems to be the highest H2 adsorption capacity in comparison to other powders described in literature.

show abstract

Section: Resultsmentioning

confidence: 54%

Synthesis of high surface area mesoporous silica SBA‐15 for hydrogen storage application

Bera

Das

2018

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

show abstract

“…9 Meanwhile, hydrogen has been proposed as a potential replacement for our rapidly depleting fossil fuel resources. 55 Boodts and Trasatti were reported two decades ago that IrO2 is a good electrocatalyst for HER and shown the current density in the order of 10 -3 A/cm 2 . 56 Cheng et al had reported that carbon supported IrO2 and RuO2 generated current density in the range from 10 -6 to 10 -3 A/cm 2 with the scan window from -0.3 to 0.3 V using 0.5M H2SO4 as an electrolyte.…”

Section: Resultsmentioning

confidence: 99%

Ultrafine Iridium Oxide Nanorods Synthesized by Molten Salt Method toward Electrocatalytic Oxygen and Hydrogen Evolution Reactions

Ahmed

Mao

2016

Electrochimica Acta

Self Cite

View full text Add to dashboard Cite

Ultrafine iridium oxide nanorods (IrO2 NRs) were successfully synthesized using a molten salt method at 650 o C. The structural and morphological characterizations of these IrO2 NRs were carried out by powder X-ray diffraction, Raman spectroscopy and electron microscopic techniques. Compared to commercial IrO2 nanoparticles (IrO2 NPs) and previous reports, these IrO2 NRs show enhanced electrocatalytic activity to oxygen and hydrogen evolution reactions by passing either N2 or O2 gas in a 0.5 M KOH electrolyte before electrochemical measurements, including cyclic voltammetry, chronoamperometry and electrochemical impedance spectroscopy. Specifically, the current densities from the as-synthesized IrO2 NRs and commercial IrO2 NPs were measured in 0.5 M KOH electrolyte to be 70 and 58 (OER, deaerated, at 0.6 V versus Ag/AgCl), 71 and 61 (OER, O2, from-0.10 to 1.0 V versus Ag/AgCl at 50 mV/s), and 25 and 14 (HER, deaerated, at-1.4 V versus Ag/AgCl) mA/cm 2 , respectively. These results are comparable with, and in most cases, higher than reported data in the literature. Therefore, the current study reports not only a novel synthetic process for IrO2 but also a high efficient IrO2 nanostructure, and it is expected that these IrO2 NRs can serve as a benchmark in the development of active OER and HER (photo)electrocatalysts for various applications.

show abstract

“…No changes in pore diameter of SBA-16 and SBA-16 M were observed. The introduction of vinyl group (CH 2 = CH 2 ) onto mesoporous silica structure changes both the pores and the surface of the materials, leading to a decrease in specific area, total pore volume, and volume of micro and mesoporos (Owens, Han, Sun, & Mao, 2015). The diameter and mesoporous lattice parameters were used to calculate the average thickness of pore walls (W).…”

Section: Characterization Of Mesoporous Silicamentioning

confidence: 99%

Bionanocomposites based on mesoporous silica and alginate for enhanced drug delivery

Lima

Kupfer

Moisés

et al. 2018

Carbohydrate Polymers

View full text Add to dashboard Cite

This work reports the preparation, the characterization and the prednisolone release profile of biocompatible hydrogel nanocomposites containing mesoporous silica (SBA) and alginate as a biomaterial for enhanced drug delivery with reduced burst effect and improved mechanical properties. Such systems, which were prepared using specific SBA/alginate-crosslinking chemistry, exhibited interconnecting pore hybrid network owing to both mesoporous silica and hydrogel characteristics. Activated SBA was shown to be a determinant factor in inhibiting initial burst by nearly 90% and the drug was released with minimal burst kinetics. The nanoparticles reduced the movements of polymer chains, affecting macromolecular relaxation, and the distribution of mesoporous silica within the hydrogel made drug release into surrounding liquid less favorable. The proposed systems are biocompatible with human immortalized RWPE-1 prostatic epithelial cells. This report offers an approach of up-to-date interest for the development of advanced biomaterials for further physiological and pathological applications.

show abstract

Synthesis of VTMS(X)-HMS-3 mesoporous ordered silica for hydrogen storage

Cited by 12 publications

References 31 publications

Synthesis of high surface area mesoporous silica SBA‐15 for hydrogen storage application

Synthesis of high surface area mesoporous silica SBA‐15 for hydrogen storage application

Ultrafine Iridium Oxide Nanorods Synthesized by Molten Salt Method toward Electrocatalytic Oxygen and Hydrogen Evolution Reactions

Bionanocomposites based on mesoporous silica and alginate for enhanced drug delivery

Contact Info

Product

Resources

About