1999
DOI: 10.1016/s0022-0728(98)00404-5
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Electrode reactions and accumulation of hydrogen at carbon paste electrodes in the presence of tetrachloropalladate

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Cited by 21 publications
(10 citation statements)
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“…These CV experiments using a glassy carbon electrode immersed in a solution of PdCl 2 clearly show that various palladium redox processes can occur. Based on the results already reported [23][24][25][26][27][28][29][30][31][32][33][34][35], the observed peaks can be related to the different possible palladium oxidation states such as Pd(0), Pd(II) and Pd(IV) that undergo several redox reactions such as Pd(0) nanoparticles deposit, or Pd(0) oxidation to Pd(II) and Pd(IV) and palladium oxide formation.…”
Section: Redox Behaviour Of Palladium Chloride In Solutionmentioning
confidence: 62%
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“…These CV experiments using a glassy carbon electrode immersed in a solution of PdCl 2 clearly show that various palladium redox processes can occur. Based on the results already reported [23][24][25][26][27][28][29][30][31][32][33][34][35], the observed peaks can be related to the different possible palladium oxidation states such as Pd(0), Pd(II) and Pd(IV) that undergo several redox reactions such as Pd(0) nanoparticles deposit, or Pd(0) oxidation to Pd(II) and Pd(IV) and palladium oxide formation.…”
Section: Redox Behaviour Of Palladium Chloride In Solutionmentioning
confidence: 62%
“…Research on palladium electrochemical behaviour started about three decades ago and was carried out using palladium metal electrodes [23][24][25][26][27][28] or, more recently, gold [28,30] or carbon electrodes [8][9][10][31][32][33][34][35][36][37] modified with palladium in different ways. Microscopy techniques, such as atomic force microscopy (AFM) and scanning electron microscopy have been used to investigate the surface morphology of graphite electrodes modified with electrodeposited palladium nanoparticles [8,9,36,38] and nanowires obtained by electrochemical step edge decoration [10,35,37].…”
Section: Introductionmentioning
confidence: 99%
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“…It could be seen that significant evolution of hydrogen happened at a much more positive potential on an FSDNA-Pd-GCE than that on a bare GCE (a 0.6 V difference in hydrogen evolution potentials was observed). There was an oxidation peak at À0.02 V during a return positive scan on the FSDNA-Pd-GCE, which might be related to the oxidative desorption of hydrogen from the palladium nanoparticles [11,31]. If the potential window was limited to be more positive than À0.25 V, both the hydrogen evolution current and the oxidative hydrogen desorption peak disappeared (see Fig.…”
Section: Oxygen Reduction At Pd Nanoparticle Modified Gcesmentioning
confidence: 98%
“…A couple of small redox peaks can be found at Epa -0.42 V (IVa) and Epc -0.69 V (IVc), these are caused by oxidation and reduction of adsorbed hydrogen species, respectively (H + + e -→ Hsorbed). 38 When the anodic sweep limit was extended to 1.3 V, phenosafranine can be oxidized to form phenosafranine radical cations, followed by radical dimerization via a carbon-nitrogen coupling route. 34 The molecular structure of phenosafranine and the proposed structure of PPS are shown in Scheme 1.…”
Section: Preparation Of Modified Electrodesmentioning
confidence: 99%