Facile synthesis of electrospinning Mn2O3-Fe2O3 loaded carbon fibers for electrocatalysis of hydrogen peroxide reduction and hydrazine oxidation

Li, Can; Li, Mian; Bo, Xiangjie; Yang, Li; Mtukula, Austin Chipojola; Guo, Liping

doi:10.1016/j.electacta.2016.06.049

Cited by 51 publications

(10 citation statements)

References 57 publications

(40 reference statements)

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“… It is worth noting that as the incorporation of Zn into CoZn(3:1)-N has led to a mixture of ZnO and Co 5.47 N (Figure S9d), the ZnO impurity even induces a negative shift (∼-0.1 eV) in BE value of Co 2p 3/2 for CoZn(3:1)-N compared with that of undoped Co 5.47 N (Figure S14a,d), which is the opposite with those of Fe, Ni, and Mn doped ones. To prove the shift of Co BE is associated with the intrinsic OER activity of bimetallic CoM(3:1)-N, the electrochemically active surface area (ECSA) calculation methods − have been presented in the Supporting Information (section 1.5). The cyclic voltammetry (CV) curves of modified electrodes and bare GCE were recorded at the scan rates of 20, 40, 60, 80, 100 mV s –1 in 1 M NaOH.…”

Section: Resultsmentioning

confidence: 99%

Comparison Study toward the Influence of the Second Metals Doping on the Oxygen Evolution Activity of Cobalt Nitrides

Liu

Zhou

2018

ACS Sustainable Chem. Eng.

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We report on the development of secondary metals doped Co5.47N nanosheets [donated as CoM(3:1)-N (M = Fe, Ni, Mn, and Zn; 3:1 is the molar ratio of Co to M)] as nonprecious metal OER catalysts. Electrochemical test results show that the Fe-doped CoFe(3:1)-N possesses superior OER activity (only need an overpotential of 200 mV to drive 10 mA cm–2) and long-term durability in 1.0 M KOH which outperform those of RuO2. X-ray photoelectron spectroscopy characterization results reveal that the Fe doping into crystal texture has led to the largest positive shift (∼1.2 eV) in binding energy of Co 2p compared to Ni, Mn, and Zn; the Lewis acid effect of Fe3+ can boost the formation of more Co4+ OER active sites. Our finding discloses the enhancing mechanism of OER on second metals-doped bimetallic nitrides and meanwhile affords a new concept toward exploring and designing high-efficiency non-noble metal OER electrocatalysts.

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Section: Resultsmentioning

confidence: 99%

Comparison Study toward the Influence of the Second Metals Doping on the Oxygen Evolution Activity of Cobalt Nitrides

Liu

Zhou

2018

ACS Sustainable Chem. Eng.

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“…1. Three orders of magnitude in linear range vs various other transition metal oxide modified electrodes . 2.…”

Section: Metal Oxides and Zeolite‐based Electrochemical Sensors For Smentioning

confidence: 98%

“…Recently, transition metal oxides, which include Fe 2 O 3 ÀMn 2 O 3 , NiO, and V 2 O 5 , have been explored as the sensing materials for hydrazine detection. [84][85][86] The addition of Fe in Mn 2 O 3 catalyst has been found essential to maintain 3D net-like framework and provided large electroactive surface area, therefore, more exposed active sites for the electrochemical response. [78] Cobalt-based oxides including CoOOH, CuCo 2 O 4 , Co 3 O 4 with different nanostructures have been extensively utilized as a modifier to detect hydrazine with satisfactory results.…”

Section: Metal Oxides and Zeolite Based Electrochemical Sensors For Hmentioning

confidence: 99%

“…Research is underway to find, less expensive, and environment‐friendly catalyst for electro‐oxidation of hydrazine. Recently, transition metal oxides, which include Fe 2 O 3 −Mn 2 O 3 , NiO, and V 2 O 5 , have been explored as the sensing materials for hydrazine detection . The addition of Fe in Mn 2 O 3 catalyst has been found essential to maintain 3D net‐like framework and provided large electroactive surface area, therefore, more exposed active sites for the electrochemical response .…”

Section: Metal Oxides and Zeolite Based Electrochemical Sensors For Ementioning

confidence: 99%

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Electrochemical Sensor Platforms Based on Nanostructured Metal Oxides, and Zeolite‐Based Materials

Prathap

Kaur

Srivastava

2018

The Chemical Record

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Electrochemical sensors have drawn significant attention over the last couple of decades because of their ability to improve detection of organic and inorganic analytes found in the field of biotechnology, environmental sciences, medicine, and food quality control. This personal account summarizes the state‐of‐art research carried out in the construction and evaluation of nanostructured metal oxides and zeolite based electrochemical sensors. Metal oxides and zeolite‐based nanomaterials have many unique and extraordinary properties such as tunable redox activity, surface functionalization ability, optimum conductivity, large surface area, biocompatibility and so forth. In this personal account, the current advances in electrochemical sensor applications of metal oxides, zeolite‐based nanomaterials, and their nanocomposites are described for the single and simultaneous determination of organic & inorganic contaminants present in water bodies, physiological bio‐molecules present in human blood & urine samples, and organic contaminants present in food materials.Moreover, concluding section focuses discussion on the future developments and applications of these materials in various emerging technologies.

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“…There are needs for low cost and more efficient catalysts with higher catalytic activity in hydrazine fuel cells. For this purpose, PtCu/C [16], P-Cu2Ni/C [17], NiCoP/C [18], SeNCM [19], Ni3S2@Ni foam [20], Mn2O3-Fe2O3/CFs [21], Ni-Pt/C [22], nano-CuO/MGCE [23], Ni3N nanoparticles [24], Cofiber/Cu [25], Ni2P@Ni10Mo/Ni-Mo-O/NF [26], and Ni foam@Ag-Ni [27] catalysts were studied in DHFC for catalysts with low costs and higher catalytic activity. In addition, Yang et al stated that the Ag/CNT catalyst prepared by modification Ag nanoparticles on CNT with benzyl mercaptan showed high catalytic activity the hydrazine electrooxidation reaction [28].…”

Section: Introductionmentioning

confidence: 99%

Investigation of hydrazine electrooxidation performance of carbon nanotube supported Pd monometallic direct hydrazine fuel cell anode catalysts

Cavak

Aldemır

et al. 2020

MANAS Journal of Engineering

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In this study, carbon nanotube (CNT) supported Pd/CNT catalysts at varying Pd molar ratios (Pd involving among 0.1-20 wt %) are prepared via NaBH4 reduction method. The surface of catalysts prepared for hydrazine electrooxidation are successfully characterized via N2 adsorption-desorption measurements, X-ray diffractometer (XRD), X-ray photoelectron spectroscopy (XPS), and transmission electron microscope (TEM). Electrochemical measurements are performed using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) techniques. According to the characterization results, for 5% Pd/CNT catalyst, the average particle size and the surface area are determined as 5.17 nm and 773.10 m 2 g -1 , respectively. Among Pd containing (0.1-20 wt %) CNT supported catalysts, 5%Pd/CNT catalyst exhibits the best current density as 6.81 mA cm -2 (1122.63 mA mg -1 Pd). Furthermore, 5% Pd/CNT catalyst shows the best charge transfer resistance (Rct) compared to Pd/CNT catalysts. Pd/CNT catalysts are promising anode catalysts for direct hydrazine fuel cells.

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Facile synthesis of electrospinning Mn2O3-Fe2O3 loaded carbon fibers for electrocatalysis of hydrogen peroxide reduction and hydrazine oxidation

Cited by 51 publications

References 57 publications

Comparison Study toward the Influence of the Second Metals Doping on the Oxygen Evolution Activity of Cobalt Nitrides

Comparison Study toward the Influence of the Second Metals Doping on the Oxygen Evolution Activity of Cobalt Nitrides

Electrochemical Sensor Platforms Based on Nanostructured Metal Oxides, and Zeolite‐Based Materials

Investigation of hydrazine electrooxidation performance of carbon nanotube supported Pd monometallic direct hydrazine fuel cell anode catalysts

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