Palladium-Based Nanomaterials: Synthesis and Electrochemical Applications

Chen, Aicheng; Ostrom, Cassandra K.

doi:10.1021/acs.chemrev.5b00324

Cited by 688 publications

(473 citation statements)

References 362 publications

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“…We modified the protocol of the one-phase synthesis of Au 25 (SR) 18 nanoclusters [42] by replacing HAuCl 4 with Pd(OAC) 2 to achieve ultrasmall palladium nanoclusters. As shown in Scheme 1, Pd 2 + can easily coordinate with 4-tert-butylbenzenethiol, forming a Pd-thiolate complex.…”

Section: Resultsmentioning

confidence: 99%

“…With regards to electrocatalytic applications, Chen and Chen found that smaller Au nanoclusters could facilitate the reduction of oxygen, owing to favorable adsorption of oxygen. [21] The Au 25 (SR) 18 (SR represents thiolates generally) nanoclusters were utilized as an effective catalyst for the electrochemical reduction of CO 2 to CO with an unprecedentedly small overpotential (merely 90 mV). [22] Moreover, renewable-energy-powered CO 2 conversion was achieved with Au 25 (SR) 18 nanoclusters as the catalyst, which may pave the way for the practical application of such a nanocluster-based energy conversion system.…”

Section: Introductionmentioning

confidence: 99%

“…[21] The Au 25 (SR) 18 (SR represents thiolates generally) nanoclusters were utilized as an effective catalyst for the electrochemical reduction of CO 2 to CO with an unprecedentedly small overpotential (merely 90 mV). [22] Moreover, renewable-energy-powered CO 2 conversion was achieved with Au 25 (SR) 18 nanoclusters as the catalyst, which may pave the way for the practical application of such a nanocluster-based energy conversion system. [23] The success in the synthesis of gold nanoclusters brought up the question of whether one can apply the synthetic methods to other metals and expand the family of ultrasmall metal clusters.…”

Section: Introductionmentioning

confidence: 99%

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Ultrasmall Palladium Nanoclusters as Effective Catalyst for Oxygen Reduction Reaction

et al. 2016

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The recent prosperity of ultrasmall gold nanoclusters makes it desirable to expand the family of clusters to other metals. Here, we present a one‐phase approach for synthesizing thiolate‐protected palladium nanoclusters with a mass of approximately 5 kDa. Such nanoclusters are further evaluated for the oxygen reduction reaction in alkaline solutions. Ligand‐on palladium nanoclusters exhibit an onset potential of −0.09 V (vs. Ag/AgCl) and superior durability in open air. With ligands removed, the palladium nanoclusters display an onset potential of −0.02 V and a higher mass activity (272.4 A g−1 at the potential of −0.15 V) than that of Pt/C (166.6 A g−1). Kinetic investigation indicates a direct four‐electron reduction pathway over palladium nanoclusters, which is preferred in oxygen reduction, owing to enhanced power generation. The efficient catalytic performance of palladium nanoclusters makes them an excellent candidate as electrocatalysts in fuel cell technology.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Ultrasmall Palladium Nanoclusters as Effective Catalyst for Oxygen Reduction Reaction

et al. 2016

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“…[31] It is well known that halogen anions (I À , Br À , Cl À ) with surface directing agents, control and govern the nuclei formation, growth and facet control of the monodispersed, anisotropic Pd NC. [32][33][34][35][36][37] Since PVP favors the formation of nanocubes due to the capping on to facets of the growing nanoparticle, Pd nanostructures are synthesized with controlled size and facets. [35] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 comparison for PAN-NF and ZnO@PAN-NF data ( Figure S3 32 Therefore, it is possible to conclude that Pd NC are available on the nanocomposite structure after the decoration procedure.…”

Section: Introductionmentioning

confidence: 99%

Reusable and Flexible Heterogeneous Catalyst for Reduction of TNT by Pd Nanocube Decorated ZnO Nanolayers onto Electrospun Polymeric Nanofibers

Arslan

Eren

Bıyıklı³

et al. 2017

ChemistrySelect

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An effective method for the fabrication of well designed nanocomposite for the catalytic reduction of 2,4,6-trinitrotoluene (TNT) was developed. Here, cubic palladium (Pd) nanoparticles were utilized for enhancing the interface properties, attachment quality, catalytic yield and stability after the catalysis reactions. Ligand controlled facet growth by the Branions during thermal decomposition of the palladium-precursor resulted with cubic shaped average~13 nm palladium nanocubes (Pd NC). The anisotropic Pd NC were utilized to decorate the surface of the zinc oxide (ZnO) nanolayers deposited by atomic layer deposition (ALD) technique on the electrospun polyacrylonitrile (PAN) nanofibers. Due to the polymeric nature of the electrospun PAN nanofibers, Pd NC decorated nanoweb is highly flexible and has a high surface area. For the sustainable Pd NC decoration on the ZnO surfaces coated on PAN nanofibers, anchor points were formed by the functional thiol groups which can facilitate the Pd NC attachment and stability on the ZnO surface. The -OH and alkyl thiol groups obtained via sol-gel reactions positioned on the ZnO layer providing a better interface between ZnO and Pd NC which cannot be obtained by pristine PAN nanofibers. Additionally, due to the increased surface interaction, geometrical positioning on fibers for a better intermediate complex formation and stability via soft-soft interaction, Pd NC decorated flexible polymeric electrospun nanoweb provided enhanced catalytic reduction of TNT in aqueous medium.

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“…28 Among the following types of bimetallic nanoparticles, Pd-containing bimetallic nanoparticles like Pd@Ni, Pd@Au, Pd@Pt and Pd@Cu are considered as promising candidates for various organic transformation reactions. 29 Moreover, it has been experimentally investigated that the catalytic properties of bimetallic nanoparticles are often affected by a range of factors, like nanostructure, morphological composition of particle, size and shape. The important features that distinguish the bimetallic catalyst from monometallic ones are the tunable nanostructures and surface compositions.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, structural characterization and catalytic application of citrate-stabilized monometallic and bimetallic palladium@copper nanoparticles in microbial anti-activities

Ullah

Khan²,

Sohail³

et al. 2017

IJN

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In this research work, copper (Cu), palladium (Pd) and their bimetallic palladium@ copper (Pd@Cu) nanoparticles were synthesized using trisodium citrate as a stabilizing agent using the known chemical reduction method. The synthesized Cu, Pd and Pd@Cu nanoparticles were characterized by the ultraviolet–visible spectroscopy, scanning electron microscopy and X-ray diffraction spectroscopy, respectively. The different volumes of trisodium citrate were used for the stability of synthesized monometallic Cu, Pd and bimetallic Pd@Cu nanoparticles. The synthesized Cu, Pd and their bimetallic Pd@Cu nanoparticles were used as catalysts for the reduction of 4-nitrophenol in the presence of NaBH 4 . The bimetallic Pd@Cu nanoparticles had efficient catalytic activities with a high rate constant (1.812 min −1 ) as compared to monometallic Cu (0.3322 min −1 ) and Pd (0.2689 min −1 ) nanoparticles, respectively. The correlation coefficient ( R 2 ) was found to be 0.99 for these three nanoparticles. Meanwhile, the effect of Cu, Pd and bimetallic Pd@Cu nanoparticles was checked on the physiology of specific different micro-organism strains. The bimetallic Pd@Cu nanoparticles reported the maximum resistance at maximum level the growth of bacterial strain and had observed a smooth antibacterial graph than the monometallic analogs.

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Palladium-Based Nanomaterials: Synthesis and Electrochemical Applications

Cited by 688 publications

References 362 publications

Ultrasmall Palladium Nanoclusters as Effective Catalyst for Oxygen Reduction Reaction

Ultrasmall Palladium Nanoclusters as Effective Catalyst for Oxygen Reduction Reaction

Reusable and Flexible Heterogeneous Catalyst for Reduction of TNT by Pd Nanocube Decorated ZnO Nanolayers onto Electrospun Polymeric Nanofibers

Synthesis, structural characterization and catalytic application of citrate-stabilized monometallic and bimetallic palladium@copper nanoparticles in microbial anti-activities

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