Synthesis and electrocatalytic hydrogen evolution performance of Ni–Mo–Cu alloy coating electrode

Xia, Ming; Lei, Ting; Lv, Ninglei; Li, Nianfeng

doi:10.1016/j.ijhydene.2014.01.091

Cited by 96 publications

(50 citation statements)

References 24 publications

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“…3d, where the kinetic parameters can be acquired. A linear relationship between log j 0 with T −1 is exhibited in a semi-logarithmic plot and then electrochemical activation energies could be calculated according to the Arrhenius equation (log j 0 = log(FK C ) − ΔG 0 /2.303RT, where R is the gas constant, ΔG 0 is the apparent activation energy, F is the Faraday constant) [27,28]. The calculated value of ΔG 0 for Ru/SiNW-42.9 is 14.87 kJ/mol.…”

Section: Inset Ofmentioning

confidence: 99%

Ru-modified silicon nanowires as electrocatalysts for hydrogen evolution reaction

Zhu

Cai

Liao

et al. 2015

Electrochemistry Communications

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Section: Inset Ofmentioning

confidence: 99%

Ru-modified silicon nanowires as electrocatalysts for hydrogen evolution reaction

Zhu

Cai

Liao

et al. 2015

Electrochemistry Communications

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“…Alloys and composites of zinc (Zn) and copper (Cu) commonly called brass have excellent properties such as mechanical strength, malleability and resistance against corrosion; in addition, they are considered to be weakly harmful to the environment 1,2 . On the other hand, molybdenum (Mo) compounds and oxides are also relevant in terms of their excellent resistance against corrosion and electrocatalytic activities [3][4][5][6][7][8][9][10] . Therefore, an alloy/composite composed of Cu, Zn and Mo may have applicability as corrosion resistant coating and electrocatalytic material.…”

Section: Introductionmentioning

confidence: 99%

“…As previously mentioned, the combination of these three elements could be interesting as a corrosion resistant coating, as with the case of Zn-Cu [19][20][21] and Zn-Mo 14,16,18 alloys and composites. In addition, the introduction of Mo in these coatings should significantly improve the electrocatalytic properties for water electrolysis because the presence of Mo in the iron group's alloys and composites has been described as responsible for the reduction of the overpotential of the hydrogen evolution reaction 10,[22][23][24] .…”

Section: Introductionmentioning

confidence: 99%

Electrodeposition study of the Cu-Zn-Mo system in citrate/sulfate medium

et al. 2019

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Alloys and composites that contain molybdenum have been studied due to their excellent properties, such as corrosion resistance and catalytic activity. In this work, the parameters for Cu-Zn-Mo system electrodeposition were studied, such as deposition potentials and concentration of electroactive species. The deposition potentials were examined using cyclic voltammetry and anodic linear stripping voltammetry (ALSV), the deposit morphology was evaluated using scanning electron microscopy (SEM) and crystallographic characterization was carried out for X-ray diffraction (XRD). The voltammetry studies indicated co-deposition of the metals in potentials more negative than -1.2 V, and a potential deposition at -1.5 V was chosen. The coatings presented morphology compact with small agglomerated particles with cauliflower structures, and the content of molybdenum, copper, and zinc ranged from 5 to 8%, 30 to 40% and 20 to 28%, respectively.

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“…Mo [1] and its alloys [2] have been widely used in high temperature applications [3] owing to their excellent stability, strength, high thermal and electrical conductivity [4], and a low coefficient of thermal expansion [5]. In addition, its high creep, corrosion, and sputtering resistance opens up applications in medical devices [6] and coatings for aerospace and defense components [7]. However, Mo still suffers from low ductility at near room temperatures [8,9].…”

Section: Introductionmentioning

confidence: 99%

Computational study of metallic dopant segregation and embrittlement at molybdenum grain boundaries

Tran

Zhou

et al. 2016

Acta Materialia

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Mo and its alloys have been widely used as refractory materials owing to their excellent high temperature properties, but a critical limitation is their low ductility. Doping the grain boundaries (GBs) of Mo with metals such as Zr or Al have previously been demonstrated as a promising approach to address this shortcoming, whereas other alloy elements are known to embrittle the GBs. In this work, we investigated the segregation and strengthening/embrittling effects of 29 metallic dopants at the Σ5 (310) tilt and Σ5 (100) twist Mo GBs using density functional theory (DFT) calculations and empirical continuum models. In agreement with previous works for other metals, we find that the strain, as measured by the relative metallic radius versus Mo, is a good predictor of the segregation tendency, while the difference in cohesive energies between the dopant and Mo is a good predictor of the strengthening/embrittling effect. However, we find that dopant chemistry also plays a significant role in affecting segregation behavior at GBs, particularly in driving the formation of intermetallic precipitates or 2-D interfacial phases (complexions). We also show that the site preference of a dopant in the GB can lead to strengthening effects that deviate from those predicted using simple bond-breaking arguments. Assuming a fast cleavage model of fracture, Ta, Re, Os and W are predicted to have a weak strengthening effect on Mo for the Σ5(310) tilt GB, and Mn, Fe, Co and Nb are predicted to have reasonable strengthening effects for the Σ5(100) twist GB.

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Synthesis and electrocatalytic hydrogen evolution performance of Ni–Mo–Cu alloy coating electrode

Cited by 96 publications

References 24 publications

Ru-modified silicon nanowires as electrocatalysts for hydrogen evolution reaction

Ru-modified silicon nanowires as electrocatalysts for hydrogen evolution reaction

Electrodeposition study of the Cu-Zn-Mo system in citrate/sulfate medium

Computational study of metallic dopant segregation and embrittlement at molybdenum grain boundaries

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