The electrochemistry of indium

Piercy, R.; Hampson, N.A.

doi:10.1007/bf00625955

Cited by 68 publications

(32 citation statements)

References 54 publications

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“…Preliminary studies were carried out to determine this formal potential taking into account some literature information: indium amalgam is sensitive to 1n3+ aquo ions (32,33); the exact determination of the potential of the reversible couple is difficult due to the reaction between metallic indium and In(II1) ions, producing unstable In(1) ions (K = 1.3 x lo-" M~) that affect the equilibrium potential (34); In(1) is easily oxidized by protons (35); finally, measurements of the potential in non-acidic or weakly acidic solutions can be affected by the hydrolysis of In(II1) (36). Preliminary measurements of the standard potential were carried out using an indium amalgam dropping electrode (-1 % wlw), in In(II1) solutions.…”

Section: Determination Of the Stability Constants Of The Complexesmentioning

confidence: 99%

Polarographic studies of indium(III) in aqueous medium of sodium azide

Tokoro¹,

Bertotti²,

Angnes³

1995

Can. J. Chem.

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Abstract:In this paper, some aspects of the polarography of indium(II1) in azidelhydrazoic acid buffer are presented. The electrode process is mostly governed by diffusion in the complexing medium. Nevertheless, for controlled-potential coulometry (involving a large time window) a catalytic process was observed, ascribed to the reaction of the hydrazoic acid and indium amalgam. The stability of azide complexes of In(II1) was studied polarographically, and the formation of four mononuclear species was confirmed by computational analysis of data obtained from polarograms of In(II1) in different azide concentrations. The values of the global constants obtained are: PI = 3.7 x 10' M-', P2 = 8.6 x lo5 M -~, P3 = 5.0 x lo7 M -~, P4 = 2.1 x lo9 MA, in a constant ionic strength medium held at 2.0 M with NaC10,. These data are in good agreement with those obtained by potentiometry. The value found for E ' of the In(III)/In couple was -5 12.2 mV vs. calomel electrode (3 M NaCl), the mean diffusion coefficient of the complex being (6.1 ? 0.2) x 10-~cm' s-I in perchlorate medium (T = 25OC).Key words: polarography, indium(II1). azide, stability constants, catalytic wave Resum6 : Dans ce travail, on prCsente quelques aspects de la polarographie de l'indium(II1) dans un tampon d'azoturelacide hydrazoi'que. Le processus B 1'Clectrode est principalement dCterminC par la diffusion dans le milieu complexant. Toutefois, pour la coulomCtrie B potentiel contr61C (impliquant une large fenstre de temps), on a observt un processus catalytique attribuC B la rCaction de I'acide hydrazoi'que avec l'amalgame d'indium.Faisant appel a la polarographie, on a CtudiC la stabilitC des complexes d'azoture avec le In(II1) et on a confirm6 la formation de quatre espbces mononuclCaires par une analyse mathkmatique des donnCes obtenues B partir de polarogrammes du In(II1) B diverses concentrations d'azoture. Les valeurs des constantes globales obtenues sont : p = 3.7 x 10' M-I, P, = 8,6 x 10" M-', P, = 5,O x lo7 M-? el P, = 2,l x lo9 MA, B une force ionique constante maintenue B 2,O M par du NaCIO,. Ces donnCes sont en bon accord avec celles obtenues par potentiomCtrie. La valeur trouvCe pour EO' dans le couple In(II1)IIn est de -5 12,2 mV vs. Clectrode au calomel (3 M NaCI) alors que le coefficient moyen de diffusion du complexe est (6,l ? 0.2) x 10" cm2 s-I dans un milieu de perchlorate (T = 25OC).

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Section: Determination Of the Stability Constants Of The Complexesmentioning

confidence: 99%

Polarographic studies of indium(III) in aqueous medium of sodium azide

Tokoro¹,

Bertotti²,

Angnes³

1995

Can. J. Chem.

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“…We were unable to capture the remaining products, probably because of additional Cu and/or In reduction as the Cu/Cu x+ or In/In y+ standard redox potentials reside in this range. [28] Moreover, at applied potentials from À0.3 to À0.7 V vs. RHE, CO was produced as almost the sole product of CO 2 reduction, approaching an FE of 90 % at À0.5 V vs. RHE. It is clear that the presence of In along with Cu drastically altered the nature of the electroactive species.…”

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confidence: 99%

A Highly Selective Copper–Indium Bimetallic Electrocatalyst for the Electrochemical Reduction of Aqueous CO₂ to CO

Rasul¹,

Anjum²,

Jedidi³

et al. 2014

Angewandte Chemie

159

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The challenge in the electrochemical reduction of aqueous carbon dioxide is in designing a highly selective, energy-efficient, and non-precious-metal electrocatalyst that minimizes the competitive reduction of proton to form hydrogen during aqueous CO 2 conversion. A non-noble metal electrocatalyst based on a copper-indium (Cu-In) alloy that selectively converts CO 2 to CO with a low overpotential is reported. The electrochemical deposition of In on rough Cu surfaces led to Cu-In alloy surfaces. DFT calculations showed that the In preferentially located on the edge sites rather than on the corner or flat sites and that the d-electron nature of Cu remained almost intact, but adsorption properties of neighboring Cu was perturbed by the presence of In. This preparation of non-noble metal alloy electrodes for the reduction of CO 2 provides guidelines for further improving electrocatalysis.

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“…1,23,24) Piercy et al 25) and Losev et al 26) reviewed basic electrochemistry of indium. Electrochemistry of indium has been studied by many researchers since 1930.…”

Section: -22)mentioning

confidence: 99%

Electrochemical behaviors of Indium

Chung¹,

Lee²

2012

Journal of Electrochemical Science and Technology

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:Many researchers focus on indium contained semiconductors and alloy compounds for their various applications. Electrochemists want to obtain indium contained compounds simply via one-step electrodeposition. First of all, electrochemistry of constituent elements must be understood in order to develop the best condition for the electrodeposition of indium contained compounds. We will review the electrochemistry of indium. Equilibria between indium metal and indium ions and the standard electrode potentials of the equilibria will be reviewed. The electrochemical reactions of indium species are affected by surrounding conditions. Thus dependences of electrochemical behaviors of indium metal and indium ions on various parameters will be reviewed.

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The electrochemistry of indium

Cited by 68 publications

References 54 publications

Polarographic studies of indium(III) in aqueous medium of sodium azide

Polarographic studies of indium(III) in aqueous medium of sodium azide

A Highly Selective Copper–Indium Bimetallic Electrocatalyst for the Electrochemical Reduction of Aqueous CO₂ to CO

Electrochemical behaviors of Indium

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The electrochemistry of indium

Cited by 68 publications

References 54 publications

Polarographic studies of indium(III) in aqueous medium of sodium azide

Polarographic studies of indium(III) in aqueous medium of sodium azide

A Highly Selective Copper–Indium Bimetallic Electrocatalyst for the Electrochemical Reduction of Aqueous CO2 to CO

Electrochemical behaviors of Indium

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A Highly Selective Copper–Indium Bimetallic Electrocatalyst for the Electrochemical Reduction of Aqueous CO₂ to CO