Carbon supported Cu-Pd nanoparticles as anode catalyst for direct borohydride-hydrogen peroxide fuel cells

Duan, Donghong; You, Xiu Dong; Jiang, Liang; Liu, Shibin; Wang, Yunfang

doi:10.1016/j.electacta.2015.07.118

Cited by 57 publications

(22 citation statements)

References 60 publications

(72 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It should be mentioned that the anodic peak potential for Ni‐2 sample is shifted about 50 mV toward less positive potentials and giving lower currents compared to the Ni‐1 and Ni‐3 samples. It is probably due to the changes in the surface features as well as different real surface areas of the samples as reported in the previous studies ,…”

Section: Resultsmentioning

confidence: 73%

See 1 more Smart Citation

Surfactant‐Assisted Electrodeposition of Nickel Nanostructures and Their Electrocatalytic Activities Toward Oxidation of Sodium Borohydride, Ethanol, and Methanol

2019

View full text Add to dashboard Cite

Different Ni nanostructures were electrodeposited from the Watts bath in the presence of different concentrations of sodium dodecyl sulfate (SDS) using the pulse reverse current technique on the copper substrate. The concentration of SDS was lower than the critical micelle concentration (CMC), equal to CMC and higher than CMC for electrodeposition of Ni‐1, Ni‐2, and Ni‐3 samples respectively. The electrodeposited samples were characterized by X‐ray diffraction (XRD), atomic force microscopy (AFM), and field emission‐scanning electron microscopy (FE‐SEM) techniques. The electrocatalytic activity of samples for oxidation of sodium borohydride, ethanol, and methanol was investigated using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). For borohydride oxidation, one oxidation peak, as well as one semicircle, observed respectively in the cyclic voltammograms and Nyquist diagrams confirmed that only one reaction happened on the surface of samples. It was observed that at high overpotentials, Ni‐1 sample was more reactive for NaBH4 oxidation compared to the Ni‐2 and Ni‐3 samples.

show abstract

Section: Resultsmentioning

confidence: 73%

“…Duan et al. reported the values of

2 {. 3 \times 10}^{- 4} {normalA cm}^{- 2}

2 {. 8 \times 10}^{- 3} {normalA cm}^{- 2}

for oxidation of borohydride on carbon supported Cu−Pd nanoparticles . For the borohydride oxidation on gold electrodes, the reported

i_{0}

values are

16 {. 4 \times 10}^{- 3} {normalA cm}^{- 2}

, and

4 {. 6 \times 10}^{- 4} {normalA cm}^{- 2}

at 0.03 M and 0.06 M concentration of borohydride …”

Section: Resultsmentioning

confidence: 99%

Surfactant‐Assisted Electrodeposition of Nickel Nanostructures and Their Electrocatalytic Activities Toward Oxidation of Sodium Borohydride, Ethanol, and Methanol

2019

View full text Add to dashboard Cite

show abstract

“…alysts containing noble metals, bimetallic catalysts have been considered as the potential alternatives. In this regard, the first-row transition metals with unoccupied 3d orbitals (Ni, Cu, Fe, Co, and Zn) have been proposed for a possible enhancement in the electrocatalytic activity for borohydride oxidation [31]. Duan et al [31] prepared carbon-supported Cu-Pd nanoparticles and used them for borohydride-hydrogen oxidation.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Electrocatalytic Activity of Low Ni Content Nano Structured NiPd Electrocatalysts Prepared by Electrodeposition Method for Borohydride Oxidation

Zolfaghari

Arab

Asghari

2020

J. Electrochem. Sci. Technol

View full text Add to dashboard Cite

Some nano structured bimetallic NiPd electrocatalysts were electrodeposited on glassy carbon electrodes using a double potential step chronoamperometry. The morphology of the electrodeposited samples was investigated by field emissionscanning electron microscopy, while their compositions were evaluated using energy dispersive X-ray spectroscopy. It was observed that the electrodeposited samples contained a low Ni content, in the range of 0.80-7.10%. The electrodeposited samples were employed as the anode electro-catalysts for the oxidation of sodium borohydride in NaOH solution (1.0 M) using cyclic voltammetry, chronoamperometry, rotating disk electrode, and impedance spectroscopy. The number of exchanged electrons, charge transfer resistances, apparent rate constants, and double layer capacitances were calculated for the oxidation of borohydride on the prepared catalysts. According to the results obtained, the NiPd-2 sample with the lowest Ni content (0.80%), presented the highest catalytic activity for borohydride oxidation compared with the other NiPd samples as well as the pure Pd sample. The anodic peak current density was obtained to be about 1.3 times higher on the NiPd-2 sample compared with that for the Pd sample.

show abstract

“…Although in the first instance the nonvolatilized carbonaceous part could be considered a disadvantage, numerous studies prove that heterostructures based on semiconducting nanoparticles embedded in carbon materials show promising features for their implementation in batteries, electrocatalysis, and photocatalysis . In fact, the dispersion of metal nanoparticles on a carbon matrix is a common practice in industry, since this class of hybrid materials are widely employed as electrochemical electrodes for fuel‐cell and battery applications, and as heterogeneous catalysts for organic synthesis, hydrodesulfurization, and wastewater treatment, etc. Furthermore, the carbon matrix prevents the agglomeration and sintering of the nanoparticles, and in the same way, it serves as a continuous, porous, and conductive support.…”

Section: Introductionmentioning

confidence: 99%

Metal–Thiobenzoato Complexes: Synthesis, Structure, and Processing as Carbon‐Supported Nanoparticles

et al. 2018

View full text Add to dashboard Cite

Six new compounds of formula [M(TBn) 2 L] [TBn: thiobenzoato; M: Pd II , Zn II , Cd II ; L: 2,2′-bipyridine (bpy), 1,10phenanthroline (phen), 1,2-di-(4-pyridil)-ethylene (bpe), neocuproine (neo), adenine (ade)] are obtained by the reaction of M(CH 3 COO) 2 ·2H 2 O with thiobenzoic acid and N-heterocyclic ligands. The use of chelating ligands and adenine leads to monomeric compounds: [Pd(TBn) 2 (bpy)] (PdBPY), [Pd(TBn) 2 (phen)] (PdPHEN), [Zn(TBn) 2 (neo)] (ZnNEO), [Cd(TBn) 2 (neo)] (CdNEO), and [Cd(TBn) 2 (ade)(CH 3 OH)] (CdADE). In these compounds, the metal is bonded to the sulfur atoms of two TBn anions, while the remaining coordination positions are completed by the donor atoms of the ancillary ligands. The bridging capability of the bpe ligand gives rise to the polymeric [Cd(TBn) 2 (μ-bpe)] n [a]This section first describes the crystal structures of the metalorganic precursors, as these data will support the discussion regarding the formation of carbonaceous composites of metal and metal-sulfide nanoparticles (M/C and MS/C, respectively). Prior to the dry thermolysis experiments, a subsection devoted to preliminary thermogravimetric analyses is presented, in which the decomposition mechanism and optimum treatment temperature ranges will be set. Thereafter, results on the dry thermolysis experiments are thoroughly discussed, detailing the microstructures and particle sizes obtained in each case, to end up with the influence of the thermal treatment parameters. Crystal Structure of PrecursorsAt first glance, the coordination sphere of these complexes (Figures 1 and 2) involves two sulfur-bonded thiobenzoate ligands, with the remaining coordination positions being occupied by two nitrogen donor atoms from a chelating N,N′-heterocyclic Eur.

show abstract

Carbon supported Cu-Pd nanoparticles as anode catalyst for direct borohydride-hydrogen peroxide fuel cells

Cited by 57 publications

References 60 publications

Surfactant‐Assisted Electrodeposition of Nickel Nanostructures and Their Electrocatalytic Activities Toward Oxidation of Sodium Borohydride, Ethanol, and Methanol

Surfactant‐Assisted Electrodeposition of Nickel Nanostructures and Their Electrocatalytic Activities Toward Oxidation of Sodium Borohydride, Ethanol, and Methanol

Enhanced Electrocatalytic Activity of Low Ni Content Nano Structured NiPd Electrocatalysts Prepared by Electrodeposition Method for Borohydride Oxidation

Metal–Thiobenzoato Complexes: Synthesis, Structure, and Processing as Carbon‐Supported Nanoparticles

Contact Info

Product

Resources

About