Electrocatalytic oxygen reduction with thiospinels and other sulphides of transition metals

Behret, H.; Binder, H.; Sandstede, G.

doi:10.1016/0013-4686(75)90047-x

Cited by 129 publications

(82 citation statements)

References 11 publications

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“…Among few choices of non-precious metal catalysts, Co and Fe metals serve as potentially catalytic centres towards ORR. Prior reports on these transition metal materials were done by Baresel et al [24], and by Behret et al [25] in the 70s. The cathodic oxygen reduction in chalcogenides of various transition metals has been further reported [26][27][28][29][30][31][32] [33,34].…”

Section: Introductionmentioning

confidence: 98%

Carbon‐Supported CoSe₂ Nanoparticles for Oxygen Reduction Reaction in Acid Medium

Feng

Alonso-Vante

2010

Fuel Cells

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Carbon‐supported CoSe2 nanoparticles, as non‐precious metal cathodic catalyst, were prepared via the in situ surfactant‐free method with the conventional heating. Structural and electrochemical properties of the obtained 20 wt.‐% CoSe2/C nanoparticles were investigated by means of powder X‐ray diffraction (PXRD), differential thermal gravimetric analysis (DTA‐DTG) and rotating disc electrode (RDE) techniques. CoSe2 nanoparticles have two kinds of crystal structure after heat treatment under nitrogen at different temperature: orthorhombic at 250 and 300 °C; cubic at 400 and 430 °C. The latter structure has higher oxygen reduction activity than the former in 0.5 M H2SO4. CoSe2/C nanoparticles after heat treatment from 250 to 430 °C, have an onset potential from 0.78 to 0.81 V versus the reference hydrogen electrode (RHE) in O2‐saturated 0.5 M H2SO4 at 25 °C. 20 wt.‐% CoSe2/C nanoparticles, after heat treatment at 300 °C, promote ca. 3.5 electrons, per oxygen molecule, transferred during the oxygen reduction process. They have an oxidation wave centred at 0.96 V versus RHE and display higher methanol tolerance as compared to 20 wt.‐% Pt/C (E‐TEK).

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Section: Introductionmentioning

confidence: 98%

Carbon‐Supported CoSe₂ Nanoparticles for Oxygen Reduction Reaction in Acid Medium

Feng

Alonso-Vante

2010

Fuel Cells

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“…[16] Among a variety of transition metal sulfides, Co 9 S 8 is an effective hydro-desulfurization catalyst, [17] and is found to have the highest catalytic activity for the oxygen reduction reaction (ORR) in acidic solution. [16,18] The charge and discharge capabilities of Co 9 S 8 [19] have already been studied, and show that Co 9 S 8 is a promising cathodic material for lithium ion batteries; the study of the magnetic properties of Co 9 S 8 shows the potential application of Co 9 S 8 in a magnetic field. [20] Due to the important application of Co 9 S 8 in various domains, Co 9 …”

Section: Introductionmentioning

confidence: 99%

Hierarchical Hollow Co₉S₈ Microspheres: Solvothermal Synthesis, Magnetic, Electrochemical, and Electrocatalytic Properties

Zhou

Yao

Wang

et al. 2010

Chemistry A European J

186

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A simple solvothermal route in a binary solution of triethylenetetramine (TETA) and deionized water (DIW) has been used to synthesize hierarchical hollow Co(9)S(8) microspheres with high surface area (80.38 m(2) g(-1)). An appropriate volume ratio of TETA:DIW has been found to be essential for the formation of hollow Co(9)S(8) microspheres. The magnetic study indicated that the Co(9)S(8) hollow microspheres are paramagnetic at high temperature and antiferromagnetic at low temperature. The oxygen reduction reaction experiments demonstrated that the onset potential of the Co(9)S(8) sample is 0.88 V, which is comparable to the value predicted for Co(9)S(8) (0.74 V) from the theoretical simulation. The discharge capability of Co(9)S(8) hollow microspheres as cathode materials for lithium ion batteries and their electrocatalytic activity for the oxygen reduction reaction (ORR) have been studied.

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“…[22] Cobalt sulfides with different stoichiometric ratios, such as Co 1Àx S, CoS, CoS 2 , Co 9 S 8 , and Co 3 S 4 , are the most important type of metal chalcogenides. These cobalt sulfides have shown great potential for use in LIBs, [18,[23][24][25] semiconductors, [26] magnets, catalysts, [12,13,[27][28][29][30] and photocatalytic degradation. [32] The thermal stability and electrical conductivity of cobalt sulfides are much better than those of other metal sulfides, [23] however, they have a number of major drawbacks, namely Abstract: Cobalt sulfide is a good candidate for both lithium ion batteries (LIBs) and cathodic oxygen reduction reaction (ORR), but low conductivity, poor cyclability, capacity fading, and structural changes hinder its applications.…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Co₃S₄/Graphene Composites for Lithium Ion Batteries and Oxygen Reduction Reaction

Mahmood

Zhang

Jiang

et al. 2013

Chemistry A European J

221

181

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Cobalt sulfide is a good candidate for both lithium ion batteries (LIBs) and cathodic oxygen reduction reaction (ORR), but low conductivity, poor cyclability, capacity fading, and structural changes hinder its applications. The incorporation of graphene into Co3S4 makes it a promising electrode by providing better electrochemical coupling, enhanced conductivity, fast mobility of ions and electrons, and a stabilized structure due to its elastic nature. With the objective of achieving high-performance composites, herein we report a facile hydrothermal process for growing Co3S4 nanotubes (NTs) on graphene (G) sheets. Electrochemical impedance spectroscopy (EIS) verified that graphene dramatically increases the conductivity of the composites to almost twice that of pristine Co3S4. Electrochemical measurements indicated that the as-synthesized Co3S4/G composites exhibit good cyclic stability and a high discharge capacity of 720 mA h g(-1) up to 100 cycles with 99.9% coulombic efficiency. Furthermore, the composites react with dissolved oxygen in the ORR by four- and two-electron mechanisms in both acidic and basic media with an onset potential close to that of commercial Pt/C. The stability of the composites is much higher than that of Pt/C, and exhibit high methanol tolerance. Thus, these properties endorse Co3 S4 /G composites as auspicious candidates for both LIBs and ORR.

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Electrocatalytic oxygen reduction with thiospinels and other sulphides of transition metals

Cited by 129 publications

References 11 publications

Carbon‐Supported CoSe₂ Nanoparticles for Oxygen Reduction Reaction in Acid Medium

Carbon‐Supported CoSe₂ Nanoparticles for Oxygen Reduction Reaction in Acid Medium

Hierarchical Hollow Co₉S₈ Microspheres: Solvothermal Synthesis, Magnetic, Electrochemical, and Electrocatalytic Properties

Multifunctional Co₃S₄/Graphene Composites for Lithium Ion Batteries and Oxygen Reduction Reaction

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Electrocatalytic oxygen reduction with thiospinels and other sulphides of transition metals

Cited by 129 publications

References 11 publications

Carbon‐Supported CoSe2 Nanoparticles for Oxygen Reduction Reaction in Acid Medium

Carbon‐Supported CoSe2 Nanoparticles for Oxygen Reduction Reaction in Acid Medium

Hierarchical Hollow Co9S8 Microspheres: Solvothermal Synthesis, Magnetic, Electrochemical, and Electrocatalytic Properties

Multifunctional Co3S4/Graphene Composites for Lithium Ion Batteries and Oxygen Reduction Reaction

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Product

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Carbon‐Supported CoSe₂ Nanoparticles for Oxygen Reduction Reaction in Acid Medium

Carbon‐Supported CoSe₂ Nanoparticles for Oxygen Reduction Reaction in Acid Medium

Hierarchical Hollow Co₉S₈ Microspheres: Solvothermal Synthesis, Magnetic, Electrochemical, and Electrocatalytic Properties

Multifunctional Co₃S₄/Graphene Composites for Lithium Ion Batteries and Oxygen Reduction Reaction