Functionalization of carbon nanotubes with silver clusters

Cvetićanin, Jelena; Krklješ, A.; Kačarević-Popović, Zorica; Mitrić, Miodrag; Rakocevic, Zlatko; Trpkov, Djordje; Nešković, O.

doi:10.1016/j.apsusc.2010.05.023

Cited by 28 publications

(17 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For both the ex‐situ method and the related method,93–106 metal nanoparticles are fully covered with stabilizer molecules such as surfactants; however, in view of fuel cell applications, these stabilizers prevent the fuel access and are inferior for the applications so that heat treatment to burn them out is necessary. However, it is reported that the removal of a stabilizer by heating often causes aggregation of the nanoparticles 107…”

Section: Preparation Of Electrocatalystmentioning

confidence: 99%

Fuel Cell Electrocatalyst Using Polybenzimidazole‐Modified Carbon Nanotubes As Support Materials

2013

View full text Add to dashboard Cite

Toward the next generation fuel cell systems, the development of a novel electrocatalyst for the polymer electrolyte fuel cell (PEFC) is crucial to overcome the drawbacks of the present electrocatalyst. As a conductive supporting material for the catalyst, carbon nanotubes (CNTs) have emerged as a promising candidate, and many attempts have been carried out to introduce CNT, in place of carbon black. On the other hand, as a polymer electrolyte, polybenzimidazoles (PBIs) have been recognized as a powerful candidate due to the high proton conductivity above 100 °C under non-humid conditions. In 2008, we found that these two materials have a strong physical interaction and form a stable hybrid material, in which the PBIs uniformly wrap the surfaces of the CNTs. Furthermore, PBIs serve as effective binding sites for the formation of platinum (Pt) nanoparticles to fabricate a ternary composite (CNT/PBIs/Pt). In this review article, we summarize the fundamental properties of the CNT/PBIs/Pt and discuss their potential as a new electrocatalyst for the PEFC in comparison with the conventional ones. Furthermore, potential applications of CNT/PBIs including use of the materials for oxygen reduction catalysts and reinforcement of PBI films are summarized.

show abstract

Section: Preparation Of Electrocatalystmentioning

confidence: 99%

Fuel Cell Electrocatalyst Using Polybenzimidazole‐Modified Carbon Nanotubes As Support Materials

2013

View full text Add to dashboard Cite

show abstract

“…This band can be assigned to the O-H stretching mode of hydroxyl groups and adsorbed water. The position and asymmetry of this band at lower wavenumbers indicate the presence of strong hydrogen bonds [27]. The bands at 2925 cm -1 and 2852 cm -1 can be assign to aliphatic C-H stretching in -CH 2 -.…”

Section: Fig 2 Pore Size Distribution Of the Carbonaceous Materialmentioning

confidence: 88%

“…The peaks at 1433 cm -1 and 1384 cm -1 are due -CH 2deformation and aromatic structure. Broad band's at 1300-1000 cm -1 have been assigned to C-O stretching in alcohols, phenols, ethers and esters [8,27].…”

Section: Fig 2 Pore Size Distribution Of the Carbonaceous Materialmentioning

confidence: 99%

Antimicrobial effects of carbonaceous material functionalized with silver

et al. 2020

View full text Add to dashboard Cite

Carbonaceous materials as well as its form functionalized with metallic silver have been prepared by hydrothermal carbonization of fructose. Results are presented to show that nanostructured silver was obtained through the functionalization process. The carbonaceous materials were characterized by: nitrogen adsorption/desorption measurement, XRD, SEM/EDS and FTIR. Samples functionalized with silver were analyzed by: XRD and SEM/EDS. The XRD analysis showed that the carbonaceous materials functionalized with silver by hydrothermal carbonization process were successfully performed. Size of silver particles was found to be approximately 32 nm, indicating formation of nanostructure. All samples were tested as an antimicrobial agent for water disinfection. Presence of nanostructured silver in the sample containing 1 mg/mL carbonaceous materials significantly decreased the number of CFU (dCFU = 97.33 %) if compared to the same sample containing the same amount of carbonaceous materials but without of silver (dCFU 65.33 %).

show abstract

“…In a different approach to the functionalization of CNTs, Cveticanin et al [114] reported a new method for the attachment of silver particles on both single-and multi-walled carbon nanotubes by employing -irradiation during the synthesis procedure. The use of polyvinyl alcohol induced the formation of surface active sites and simultaneously reduced the Ag + ions onto the surface of the CNTs.…”

Section: Other Heterogeneous Cnt-supported Catalystsmentioning

confidence: 99%

Utilization of Carbon Nanotubes as a Support Material in Metal-Based Catalyst Systems: Applications in Catalysis

Pahmy¹,

Mohamed

2012

ENG

View full text Add to dashboard Cite

Carbon nanotubes (CNTs), which were discovered in 199, have emerged as one of the most distinctive classes of carbon-allotrope materials. They exhibit various fascinating physical, electronic and mechanical properties, which have stimulated significant interest among researchers. CNT researchers have focused on exploring and deploying CNTs in the area of synthesis and implementing them in numerous applications, such as nanoelectronic devices, compositereinforcement material, catalyst supports, etc. Their combination of light weight, nanoscale diameter, mesoporous structure, high aspect ratio, high thermal conductivity and high stability render them as effective support materials. This review focuses on the applications of CNTs combined with various metal-based particles in the field of catalysis. The effects of the incorporation of CNTs into catalyst systems are discussed in terms of the catalytic activity, reaction selectivity and reaction pathway. The remarkable properties of CNTs that fulfil the requirements of support catalysts are also discussed. Patents relevant to the topic have been discussed.

show abstract

Functionalization of carbon nanotubes with silver clusters

Cited by 28 publications

References 44 publications

Fuel Cell Electrocatalyst Using Polybenzimidazole‐Modified Carbon Nanotubes As Support Materials

Fuel Cell Electrocatalyst Using Polybenzimidazole‐Modified Carbon Nanotubes As Support Materials

Antimicrobial effects of carbonaceous material functionalized with silver

Utilization of Carbon Nanotubes as a Support Material in Metal-Based Catalyst Systems: Applications in Catalysis

Contact Info

Product

Resources

About