The on demand generation of hydrogen from Co-Ni bimetallic nano catalyst prepared by dual use of hydrogel: As template and as reactor

Şahiner, Nurettin; Özay, Özgür; Aktaş, Nahit; Inger, Erk; He, Jibao

doi:10.1016/j.ijhydene.2011.08.082

Cited by 69 publications

(16 citation statements)

References 38 publications

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“…At the end of 6th time the evolution of hydrogen generation slows down as the reaction proceeds, may be because of increasing viscosity of the solution or deactivation effect of metaborate concentration. In the literature, CoeNi bimetallic nano catalyst provided 49e243 mol H 2 (mol catalyst) À1 (h) À1 turnover frequency (TOF) for 30e70 C. The dicationic salt [C 6 (mpy) 2 ] [NiCl 4 ] 2À provides 5048 ml hydrogen generation over 23 h in the hydrolysis of sodium borohydride before deactivation which is comparable to the reported values [46]. Noteworthy to mention here that dicationic tetrachloronickelate (II) anion contains very small amount of Ni content.…”

Section: 7supporting

confidence: 78%

Hydrogen generation from the hydrolysis of sodium borohydride with new pyridinium dicationic salts containing transition metal complexes

Chinnappan¹,

Kim²,

Baskar³

et al. 2012

International Journal of Hydrogen Energy

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Section: 7supporting

confidence: 78%

Hydrogen generation from the hydrolysis of sodium borohydride with new pyridinium dicationic salts containing transition metal complexes

Chinnappan¹,

Kim²,

Baskar³

et al. 2012

International Journal of Hydrogen Energy

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“…[ 48 ] responsive, to be sequestered when not required. [ 56 ] Zhang et al recently used a poly(ethylene oxide propylphosphonamidate) (PEOPPA) hydrogel bearing multi-amine groups to carry out in situ reduction with concomitant nanoparticle formation. Uniform immobilization of noble metal nanoparticles (Au, Ag, Pd, Pt and Ru) were obtained in the absence of any other reducing agents and stabilizers.…”

Section: Other Metal Np-hydrogel Compositesmentioning

confidence: 99%

Nanoparticle–Hydrogel Composites: Concept, Design, and Applications of These Promising, Multi‐Functional Materials

et al. 2015

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New technologies rely on the development of new materials, and these may simply be the innovative combination of known components. The structural combination of a polymer hydrogel network with a nanoparticle (metals, non‐metals, metal oxides, and polymeric moieties) holds the promise of providing superior functionality to the composite material with applications in diverse fields, including catalysis, electronics, bio‐sensing, drug delivery, nano‐medicine, and environmental remediation. This mixing may result in a synergistic property enhancement of each component: for example, the mechanical strength of the hydrogel and concomitantly decrease aggregation of the nanoparticles. These mutual benefits and the associated potential applications have seen a surge of interest in the past decade from multi‐disciplinary research groups. Recent advances in nanoparticle–hydrogel composites are herein reviewed with a focus on their synthesis, design, potential applications, and the inherent challenges accompanying these exciting materials.

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“…Due to these functional groups, hydrogels can respond to environmental factors such as pH, ionic strength, temperature, and electric and magnetic fields, and can even recognize certain molecules. Additionally, hydrogels are biocompatible and have been used in many fields such as drug release system controls, as sensors in biomedical applications, in separation and purification processes, in tissue engineering, and as support materials for catalysts [12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Biochar-Embedded Soft Hydrogel and Their Use in Ag Nanoparticle Preparation and Reduction of 4-Nitro Phenol

Şahiner

Karakoyun

Alpaslan

et al. 2013

International Journal of Polymeric Materials and Polymeric Biom

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The authors report the synthesis of a composite hydrogel based on acrylamide-chicken biochar-(AAm)-CB-and its use as a template in the preparation of silver metal nanoparticles. Moreover, we demonstrate the efficient utilization of p(AAm)-CB composite hydrogel as a reactor vessel in the reduction of an organic contaminant 4-nitrophenol (4-NP) to 4-aminophenol (4-AP). Experimental parameters affecting 4-NP reduction rate were investigated. The kinetics of the reduction reaction under different reaction conditions were also evaluated to determine the activation parameters. Activation energy for the reduction of 4-NP was 15.25 kJ mol À1 and p(AAm)-CB-Ag composites possessed 99.45% activity after five repetitive uses.

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The on demand generation of hydrogen from Co-Ni bimetallic nano catalyst prepared by dual use of hydrogel: As template and as reactor

Cited by 69 publications

References 38 publications

Hydrogen generation from the hydrolysis of sodium borohydride with new pyridinium dicationic salts containing transition metal complexes

Hydrogen generation from the hydrolysis of sodium borohydride with new pyridinium dicationic salts containing transition metal complexes

Nanoparticle–Hydrogel Composites: Concept, Design, and Applications of These Promising, Multi‐Functional Materials

Biochar-Embedded Soft Hydrogel and Their Use in Ag Nanoparticle Preparation and Reduction of 4-Nitro Phenol

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