Based on a new support for synthesis of highly efficient palladium/hydroxyapatite catalyst for ethanol electrooxidation

Cui, Qian; Chao, Shujun; Bai, Zhengyu; Yan, Huiying; Wang, Kui; Yang, Lin

doi:10.1016/j.electacta.2014.03.129

Cited by 41 publications

(23 citation statements)

References 34 publications

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“…XRD analysis showed larger crystal formation due to the palladium metal deposited upon the HAP surface, indicated by sharper (narrower) XRD peaks, when compared to the JCPDS pattern presented in Figure 4B,C. Also, patterns reveal face-centred-cubic crystalline palladium metal, with all the peaks shifted slightly, corresponding to a lower binding energy of the material (shown in Figure 4D) [42,43]. This scenario is also accompanied by an increased intensity of the peaks, which is characteristic behaviour for material with changed centre of symmetry of the material.…”

Section: Palladium Doped Hapmentioning

confidence: 99%

High Yield Synthesis of Hydroxyapatite (HAP) and Palladium Doped HAP via a Wet Chemical Synthetic Route

et al. 2016

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Abstract:A novel procedure for the synthesis of both hydroxyapatite (HAP) and palladium doped HAP via a wet chemical precipitation method is described herein. X-ray Diffraction (XRD), Raman Spectroscopy, Scanning Electron Microscopy (SEM) with Energy Dispersive X-ray Spectroscopy (EDS) and Fourier Transform Infrared (FT-IR) Spectroscopy are utilised to characterise the synthesised material's morphology, structure and crystallinity. The developed synthetic protocol produces high purity HAP with an average yield of 83.7 (˘0.10)% and an average particle size of 58.2 (˘0.98) nm, such synthesis has been achieved at room temperature and within a time period of less than 24 h. Additionally, in order to enhance the overall conductivity of the material, a range of Pd (2, 4 and 6 wt %) metal doped HAP has been synthesised, characterised and, for the first time, applied towards the competitive electrocatalytic detection of hydrazine, exhibiting a linear range of 50-400 µM with a limit of detection (3σ) of 30 µM.

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Section: Palladium Doped Hapmentioning

confidence: 99%

High Yield Synthesis of Hydroxyapatite (HAP) and Palladium Doped HAP via a Wet Chemical Synthetic Route

et al. 2016

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“…According to the Ostwald ripening mechanism, surface atoms could detach from the smaller nanoparticles, followed by reattachment to generate the more stable surfaces of the larger nanoparticles [45]. Therefore, the better electro-catalytic activities of Pd/CB can be ascribed to the narrow distribution of Pd NPs, which suppresses the Ostwald ripening and thus improves the stability of the catalyst [13].…”

Section: Resultsmentioning

confidence: 99%

Highly dispersed palladium nanoparticles on commercial carbon black with significantly high electro-catalytic activity for methanol and ethanol oxidation

Wang

2015

International Journal of Hydrogen Energy

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“…It can be observed from CV curves that all onset potentials of the ethanol electro‐oxidation begin at ∼ –0.70 V, and the peak potentials of ethanol oxidation are in the range of –0.17 to –0.22 V for positive‐going potential scan. In the forward‐going scan, the oxidation peak is corresponding to the oxidation of freshly chemisorbed species coming from ethanol adsorption . The reverse scan peak is primarily associated with removal of carbonaceous species not completely oxidized in the forward‐going scan than the oxidation of freshly chemisorbed species , .…”

Section: Resultsmentioning

confidence: 99%

Microwave‐assisted Synthesis of Pd Oxide‐rich Pd Particles on Nitrogen/Sulfur Co‐Doped Graphene with Remarkably Enhanced Ethanol Electrooxidation

et al. 2016

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Nitrogen and sulfur co‐doped graphene supported Pd oxide‐rich (PdOx‐rich) Pd nanoparticles (Pd/NS‐rGO) are synthesized by microwave‐assisted ascorbic acid reduction method. Raman spectrum reveals that the introduced NS co‐doping could introduce more defects on the graphene surface. X‐ray diffraction, X‐ray photoelectron spectrum, SEM and TEM images indicate that the synthesized PdOx‐rich Pd particles are well‐dispersed on NS co‐doped graphene surface. Cyclic voltammograms curves illustrate that the Pd/NS‐rGO catalyst exhibits a larger electrochemically active surface area (35.7 m2 g−1) and higher positive current density (1,054.0 mA mg−1 Pd) than other catalysts prepared by similar methods. The Pd/NS‐rGO catalyst also reveals superior anti‐poisoning intermediate species ability and amazing stability. The electrocatalytic mechanism is also detailedly discussed and the designed Pd/NS‐rGO catalyst has opened up a new insight and methodology for the construction of a high performance and stability ethanol electrocatalysts in corrosive alkaline environments.

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Based on a new support for synthesis of highly efficient palladium/hydroxyapatite catalyst for ethanol electrooxidation

Cited by 41 publications

References 34 publications

High Yield Synthesis of Hydroxyapatite (HAP) and Palladium Doped HAP via a Wet Chemical Synthetic Route

High Yield Synthesis of Hydroxyapatite (HAP) and Palladium Doped HAP via a Wet Chemical Synthetic Route

Highly dispersed palladium nanoparticles on commercial carbon black with significantly high electro-catalytic activity for methanol and ethanol oxidation

Microwave‐assisted Synthesis of Pd Oxide‐rich Pd Particles on Nitrogen/Sulfur Co‐Doped Graphene with Remarkably Enhanced Ethanol Electrooxidation

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