Electrocatalytic activity of perovskite La1−Sr MnO3 towards hydrogen peroxide reduction in alkaline medium

Wang, Guiling; Bao, Yefeng; Tian, Yang; Xia, Jianling

doi:10.1016/j.jpowsour.2010.04.061

Cited by 46 publications

(30 citation statements)

References 34 publications

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“…And the weak exothermic peak at 617°C is due to formation of the perovskite phase, which is consistent with Ref. [7]. In stage IV (around 630-900°C), no significant weight loss is observed which implies that almost all the nitrite anion and organic derivatives are removed.…”

Section: Characterization Of the As-prepared Samplessupporting

confidence: 89%

“…As shown in Fig. 8, the XRD patterns are in good agreement with that reported in literatures for perovskitetype La 1-x Sr x MnO 3 [7,26]. Furthermore, there is no the SrCO 3 impurity with the increasing Sr content, which was probably due to the relatively low calcination temperature in the MSG case.…”

Section: Characterization Of the As-prepared Samplessupporting

confidence: 89%

“…Among them, La 1-x Sr x MnO 3 (x = 0.2-0.8) materials showed the reasonable catalytic activity for ORR/OER and for combustion of volatile organic compounds [6][7][8]. As a catalyst, the catalytic activity and stability are prerequisite, strongly relating to its morphology, particle size distribution, and crystallinity, which are determined by the preparation method adopted [9].…”

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confidence: 99%

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A modified sol–gel method for low-temperature synthesis of homogeneous nanoporous La1−x Sr x MnO3 with large specific surface area

Zhuang

Liu

Zeng

et al. 2015

J Sol-Gel Sci Technol

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A modified sol-gel (MSG) method was developed to synthesize perovskite La 1-x Sr x MnO 3 (x = 0.2, 0.4, 0.6, 0.8) with large specific surface area that allows for control of their particle size from the micrometer level to the nanometer level with novel nanoporous structure. The MSG method utilized carbon black (Vulcan XC-72R) as a poreforming material during the preparation process. Two important process parameters, the calcination temperature and the pore former material addition, were investigated to control the size of the La 1-x Sr x MnO 3 particles. The phase evolution of La 1-x Sr x MnO 3 powders was investigated by thermogravimetric analysis (TG/DSC) and X-ray diffraction pattern. The results showed that the pure La 0.6 Sr 0.4 MnO 3 phase has been obtained at about 550°C in air, which is lowered around 150°C comparing to conventional sol-gel method. In scanning electron microscope studied, it presented novel homogeneous nanoporous morphology with the average particle size from 30 to 100 nm. Based on the Brunauer-Emmett-Teller method analysis, the specific surface area of La 1-x Sr x MnO 3 was significantly influenced by the calcination temperature, the pore former material addition and the strontium content. The largest specific surface area of La 0.2 Sr 0.8 MnO 3 reached 114.3 m 2 /g. Graphical abstract

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Section: Characterization Of the As-prepared Samplessupporting

confidence: 89%

Section: Characterization Of the As-prepared Samplessupporting

confidence: 89%

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confidence: 99%

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A modified sol–gel method for low-temperature synthesis of homogeneous nanoporous La1−x Sr x MnO3 with large specific surface area

Zhuang

Liu

Zeng

et al. 2015

J Sol-Gel Sci Technol

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“…Details of La 1−x Sr x CoO 3 oxides synthesis can be found elsewhere [33]. Stoichiometric amounts of nitrates were dissolved in a small amount of distilled water to get A solution.…”

Section: Preparation and Structural Characterizationmentioning

confidence: 99%

Electrochemical hydrogen storage behaviors of nanostructured La1-xSrxCoO3 (x = 0-1.0) prepared by sol-gel method

Peng¹,

Bao²,

Qiao³

et al. 2016

Proceedings of the 2016 International Conference on Innovative Material Science and Technology (IMST 2016)

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Abstract. The La1-xSrxCoO3 perovskite oxides were synthesized by a sol-gel method, the electrochemical properties of them were studied as negative electrodes for nickel-metal hydride batteries in aqueous KOH solution. The results show that the electrode with the Sr content of x = 1.0 shows the best performance among the as-prepared materials, whose maximum discharge capacity is 103.5 mAh g -1 and the capacity remains 100 mAh g -1 after 20cycles at the discharge current density 100 mA g -1 , the retention rate is 97.1%. The possible existence of strong chemisorption of hydrogen may lead to the lower discharge capacity of nanoparticles according to CV results. Analysis of electrode reaction mechanism demonstrates that the discharge capacity is attributed to the valence change of Co ions, so the electrocatalytic activity can be enhanced by A site metal substitution.

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“…They are (1) noble metals, such as platinum, palladium, iridium, silver, gold, and a combination of these [1,5,7,[10][11][12]; (2) macrocycle complexes of transition metals, such as Fe-and Co-porphyrin, Cu-triazine complexes [18,19]; (3) metallic oxide, such as cobalt oxide [6,20,21]; and (4) perovskite [22].…”

Section: Introductionmentioning

confidence: 99%

Preparation and electrocatalytic performance of Fe–N–C for electroreduction of H2O2

Tian

Huang

Gao

et al. 2011

J Solid State Electrochem

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Fe-N-C catalysts were prepared through metal-assisted polymerization method. Effects of carbon treatment, Fe loading, nitrogen source, and calcination temperature on the catalytic performance of the Fe-N-C for H 2 O 2 electroreduction were measured by voltammetry and chronoamperometry. The Fe-N-C catalyst shows optimal performance when prepared with pretreated active carbon, 0.2 wt.% Fe, paranitroaniline (4-NA) and one-time calcination. The Fe-N-C catalyst displayed good performance and stability for electroreduction of H 2 O 2 in alkaline solution. An Al-H 2 O 2 semi-fuel cell was set up with Fe-N-C catalyst as cathode and Al as anode. The cell exhibits an open-circuit voltage of 1.3 V and its power density reached 51.4 mW cm −2 at 65 mA cm −2 .

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Electrocatalytic activity of perovskite La1−Sr MnO3 towards hydrogen peroxide reduction in alkaline medium

Cited by 46 publications

References 34 publications

A modified sol–gel method for low-temperature synthesis of homogeneous nanoporous La1−x Sr x MnO3 with large specific surface area

A modified sol–gel method for low-temperature synthesis of homogeneous nanoporous La1−x Sr x MnO3 with large specific surface area

Electrochemical hydrogen storage behaviors of nanostructured La1-xSrxCoO3 (x = 0-1.0) prepared by sol-gel method

Preparation and electrocatalytic performance of Fe–N–C for electroreduction of H2O2

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