Efficient Frequent Pattern Mining in Web Log

Sharma, Lokesh Kumar; Kar, Naresh Kumar; Roy, Dharmendra; Vyas, Rushi

doi:10.3850/978-981-08-7300-4_1069

Cited by 2 publications

(3 citation statements)

References 6 publications

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“…41 In brief, heat treated CF was dipped for 10 min in an alkaline bath held at 80 o C, where the coating bath consisted of nickel sulphate (30 g l -1 ), sodium hypophosphite (12 g l -1 ), ammonium chloride (50 g l -1 ), trisodium citrate (40 g l -1 ) and liquor ammonia (30% NH3 to adjust pH at 8). CNTs as well as Pt-nanoparticles were synthesized directly on their respective substrates, namely the CF and the CNTCF.…”

Section: Synthesis Of Pt-cntcfmentioning

confidence: 99%

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Hierarchically structured catalyst layer for the oxygen reduction reaction fabricated by electrodeposition of platinum on carbon nanotube coated carbon fiber

Sharma

Kar

2015

RSC Adv.

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Cost-efficient fabrication of cathode catalyst layer having low Pt-loading and high oxygen reduction reaction (ORR) performance is of prime importance towards commercialization of low temperature fuel cells. Here, an attempt has been made to fabricate hierarchically structured and cathode catalyst layer consisting of Pt-nanoparticle clusters supported on defective carbon nanotube (CNT) coated carbon fiber (CNTCF). CNTs are grown on carbon fiber (CF) by chemical vapor deposition (CVD), while electrodeposition is employed to deposit Pt-nanoparticle clusters on the CNTCF. Effect of Pt-loading on oxygen reduction reaction (ORR) performance of the Ptcoated CNTCF (Pt-CNTCF) electrocatalysts is studied by varying the electrodeposition time (ted) between 5 and 30 min, which results a variation of Pt weight fraction in Pt-CNTCF from almost zero to ~0.3. Linear sweep voltammetry using the Pt-CNTCF modified glassy carbon (GC) rotating disc electrode (RDE) is employed to study the ORR performance of the samples. The CNTCF support, owing to the defective structure of CNT, itself exhibits significant ORR activity with an electron transfer number (n) of ~2.6, which leads to a synergistic enhancement of the overall electrocatalytic performance of Pt-CNTCF. For lower Pt-loading on GC (~5 μg cm -2 ), the contribution of CNTCF support dominates, while the Pt-nanoclusters govern the ORR 2 performance at higher Pt-loading ((>10 μg cm -2 ), with n>3.5. Hence, a very low Pt-loading (~5 μg cm -2 ) may not be suitable for polymer electrolyte membrane fuel cells as production of substantial amounts of H2O2 on the catalyst supports may accelerate the membrane degradation.

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Section: Synthesis Of Pt-cntcfmentioning

confidence: 99%

“…11,41 The catalyst coating on CNTCF is performed by electrodeposition technique. Here, hierarchically structured CNTCF is synthesized by direct growth of CNT on carbon fiber (CF) substrate by chemical vapor deposition (CVD).…”

mentioning

confidence: 99%

Hierarchically structured catalyst layer for the oxygen reduction reaction fabricated by electrodeposition of platinum on carbon nanotube coated carbon fiber

Sharma

Kar

2015

RSC Adv.

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“…The total consumption of dyes in the world's textile industry exceeds 10000 tons/year, and about 100 tons/year of dyes are discharged into the water stream [9] . Statistically, the share of developing countries in the global textile market has risen to account for 58.6 %, which means that more than half of the world's dying wastewater is produced by developing countries [10] . Therefore, it is paramount to treat dye polluted effluents, a field that has attracted an ever‐growing interest from the scientific community in the past decades.…”

Section: Introductionmentioning

confidence: 99%

In‐Situ Stabilizing Nano‐Ag onto Nonwoven Fabrics via a Mussel‐Inspired Approach for Continuous‐Flow Catalysis Reduction of Organic Dyes

Zhou

Fan

et al. 2022

ChemistrySelect

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A novel nonwoven‐fabric‐supported‐nano‐Ag (NWF/Ag) reactor was obtained via a mussel‐inspired in‐situ fabrication method. The resulting NWF/Ag features a high catalytic activity for the reduction reaction of organic dyes in the presence of sodium borohydride. More importantly, it is also feasible for the scale‐up catalysis in NWF/Ag‐assembled continuous‐flow reactors. Such a NWF/Ag catalyst preserves the fiber‐based three‐dimensional architecture to effectively drive the continuous‐flow catalysis reactions at unprecedented efficiency, benefiting from it the easy diffusion of dye molecules to access the active catalytic sites of nano‐Ag. Moreover, the resulting NWF/Ag composites can serve as versatile platforms to assemble continuous‐flow reactors in different shapes, sizes, and configurations to extend the catalysis applications. In this study, the catalytic reduction conversion of methylene blue can reach more than 98 % in 270 seconds using the NWF/Ag‐based channel‐type continuous‐flow reactor. It also preserves good catalytic reduction performance to other organic dyes, including methyl orange and acid orange 7. The NWF‐based platforms, combined with a rational designed approach of surface functionalization and hybridization, probably provide new insights into the catalytic reduction of organic dyes in a continuous‐flow way.

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Efficient Frequent Pattern Mining in Web Log

Cited by 2 publications

References 6 publications

Hierarchically structured catalyst layer for the oxygen reduction reaction fabricated by electrodeposition of platinum on carbon nanotube coated carbon fiber

Hierarchically structured catalyst layer for the oxygen reduction reaction fabricated by electrodeposition of platinum on carbon nanotube coated carbon fiber

In‐Situ Stabilizing Nano‐Ag onto Nonwoven Fabrics via a Mussel‐Inspired Approach for Continuous‐Flow Catalysis Reduction of Organic Dyes

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