A New Bio‐Inspired Route to Metal‐Nanoparticle‐Based Heterogeneous Catalysts

Debecker, Damien P.; Faure, Chrystel; Meyre, Marie-Edith; Derré, Alain; Gaigneaux, Éric M.

doi:10.1002/smll.200800304

Cited by 28 publications

(12 citation statements)

References 43 publications

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“…Based on our experimental results we propose the brief working mechanism generated by the AgNP's for the synthesis of 2-aryl benzimidazole derivatives as shown in Figure 11. The existence of electron transfer processes between the AgNP and an aldehyde substrate, consistent with the electron transfer processes in metal nanoparticle-catalyzed oxidation reactions [35–38]. …”

Section: Resultssupporting

confidence: 56%

Sonochemical Synthesis of Silver Nanoparticles Using Starch: A Comparison

Kumar

Smita

Cumbal

et al. 2014

Bioinorganic Chemistry and Applications

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A novel approach was applied to synthesize silver nanoparticles using starch under sonication. Colloidal silver nanoparticles solution exhibited an increase of absorption from 420 to 440 nm with increase starch quantity. Transmission electron microscopy followed by selected area electron diffraction pattern analysis indicated the formation of spherical, polydispersed, amorphous, silver nanoparticles of diameter ranging from 23 to 97 nm with mean particle size of 45.6 nm. Selected area electron diffraction (SAED) confirmed partial crystalline and amorphous nature of silver nanoparticles. Silver nanoparticles synthesized in this manner can be used for synthesis of 2-aryl substituted benzimidazoles which have numerous biomedical applications. The optimized reaction conditions include 10 ml of 1 mM AgNO3, 25 mg starch, 11 pH range, and sonication for 20 min at room temperature.

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Section: Resultssupporting

confidence: 56%

Sonochemical Synthesis of Silver Nanoparticles Using Starch: A Comparison

Kumar

Smita

Cumbal

et al. 2014

Bioinorganic Chemistry and Applications

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“…[32][33][34] Modification of hydrotalcites with organometallic complexes [2] or polyoxometallates [35] further broadens the range of applications of hydrotalcites or hydrotalcite-derived materials as catalysts (e.g., propylene epoxidation). Dispersing active metals in the form of small and stable particles is still a major target for researchers looking for catalytic materials, [36][37][38][39][40] and HTs used as supports are a promising tool for this purpose. [21,30,[41][42][43][44][45][46][47][48] Numerous experimental investigations have been published on the use of hydrotalcites for catalytic applications.…”

Section: Introductionmentioning

confidence: 99%

Exploring, Tuning, and Exploiting the Basicity of Hydrotalcites for Applications in Heterogeneous Catalysis

Debecker

Gaigneaux

Busca

2009

Chemistry A European J

474

265

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Basic catalysis! The basic properties of hydrotalcites (see picture) make them attractive for numerous catalytic applications. Probing the basicity of the catalysts is crucial to understand the base-catalysed processes and to optimise the catalyst preparation. Various parameters can be employed to tune the basic properties of hydrotalcite-based catalysts towards the basicity demanded by each target chemical reaction.Hydrotalcites offer unique basic properties that make them very attractive for catalytic applications. It is of primary interest to make use of accurate tools for probing the basicity of hydrotalcite-based catalysts for the purpose of 1) fundamental understanding of base-catalysed processes with hydrotalcites and 2) optimisation of the catalytic performance achieved in reactions of industrial interest. Techniques based on probe molecules, titration techniques and test reactions along with physicochemical characterisation are overviewed in the first part of this review. The aim is to provide the tools for understanding how series of parameters involved in the preparation of hydrotalcite-based catalytic materials can be employed to control and adapt the basic properties of the catalyst towards the basicity demanded by each target chemical reaction. An overview of recent and significant achievements in that perspective is presented in the second part of the paper.

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“…Also water has been used as green solvent for the preparation of metal NPs which is environmental friendly [94]. In few cases, solvents such as alcohols were also studied as a green medium for stabilizing bio based NMs [95].…”

Section: Energy and Environmental Applicationsmentioning

confidence: 99%

Introduction to Bioinspired Nanomaterials

Kundu

Kumaravel

2021

Materials Research Foundations

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Nanomaterials (NMs) developed using biomolecules display numerous advantages which attract the science community to explore them for a wide range of applications. In this line, bio-scaffolds are studied as templates to form nano-bio heterojunctions in the nano confined materials. With the high flexibility of biomediated NMs, it is possible to develop desired size and shape selective NMs. Such bio-based NMs have great benefits in wide areas including catalysis, sensors and energy related applications particularly, electrocatalysis, supercapacitor, batteries etc. The viability of bio-scaffolds in developing metal superstructures makes them better choice in the medicinal fields. This book chapter mainly focused on the advantageous and challenges of bioinspired NMs in the medicinal field, particularly in drug delivery systems. Moreover, the synthetic methods such as enzyme catalyzed wet-chemical route, photo-irradiation and incubation methods were also discussed in detail. Also, this chapter gives a better understanding to the readers about the development of new nano-bio heterojunctions for medicine, energy and environmental fields. Moreover, the morphological features of nano-bio interactions at nanoscale level show predominant activity particularly in Surface Enhanced Raman Scattering (SERS) and sensor applications. With the knowledge gained from this chapter, in futuristic, one can go for the development of new metal nanostructures with different bio-scaffolds such as microorganisms, viruses, DNA and protein to mainstream applications for the medicinal fields.

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A New Bio‐Inspired Route to Metal‐Nanoparticle‐Based Heterogeneous Catalysts

Cited by 28 publications

References 43 publications

Sonochemical Synthesis of Silver Nanoparticles Using Starch: A Comparison

Sonochemical Synthesis of Silver Nanoparticles Using Starch: A Comparison

Exploring, Tuning, and Exploiting the Basicity of Hydrotalcites for Applications in Heterogeneous Catalysis

Introduction to Bioinspired Nanomaterials

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