Thermodynamic properties of Ag–Au alloys measured by a solid-state electrolyte EMF method

Santoso, Imam; Taskinen, Pekka; Lindberg, Daniel

doi:10.1016/j.tca.2020.178658

Cited by 4 publications

(2 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…All substances used in this investigation are compiled in Table 1 together with their corresponding purity. For the EMF measurements [16][17][18][19][20][21], the following electrochemical cells (ECCs) were assembled:…”

Section: Methodsmentioning

confidence: 99%

Non-activation synthesis and thermodynamic properties of ternary compounds of the Ag–Te–Br system

et al. 2021

View full text Add to dashboard Cite

Section: Methodsmentioning

confidence: 99%

Non-activation synthesis and thermodynamic properties of ternary compounds of the Ag–Te–Br system

et al. 2021

View full text Add to dashboard Cite

“…Furthermore, the Au-Ag alloy must be prepared by annealing mixed powders of gold and silver around the melting temperatures of Au (1064 o C) and Ag (962 o C). [21][22][23][24] We previously reported self-assembled gelation of a hydrophilic polymer bearing a metal-coordination unit (HPMC) upon dropwise addition of a dispersed aqueous solution of HPMC to an aqueous solution of Au(III) ions. [25][26][27][28] HPMC contains thiocarbonyl groups for metal coordination and hydroxyl groups for hydrophilicity (Scheme 1).…”

Section: Introductionmentioning

confidence: 99%

Gelation of Hydrophilic Polymer Bearing Metal-coordination Units with Au(III) Ions: Application to Synthesis of Porous Gold

Nagai,

Mano,

Ishii

et al. 2024

Preprint

View full text Add to dashboard Cite

We describe an environmentally benign method for the synthesis of porous gold by gelation of a hydrophilic polymer bearing metal-coordination units (thiocarbonyl groups, denoted as HPMC) and Au(III) ions. The gelation was performed by dropwise addition of a dispersed aqueous solution of HPMC to an aqueous solution of Au(III) in a test tube. Concentrations of 15 and 20 wt% HPMC provided elongated and fibrous gels. Scanning electron microscopy and transmission electron microscopy analyses of the fibrous gels revealed the formation of porous gels containing Au nanoparticles. Calcination of the polymer parts in the porous gels at 550 oC for 7 h, followed by self-assembly of the remaining Au nanoparticles, provided the golds with micrometer-size pores. Thermogravimetric analysis of the porous golds indicated that its purity was high (96∼99%). Because the metal-coordination unit has soft basic characteristics, it preferentially coordinate to soft acidic noble metal ions such as platinum group metal ions, Ag(I), and so on. Therefore, this method will be applied to synthesis of various porous metals.

show abstract

Gelation of Hydrophilic Polymer Bearing Metal-coordination Units with Au(III) Ions: Application to Synthesis of Porous Gold

Nagai,

Mano,

Ishii

et al. 2024

Gold Bull

View full text Add to dashboard Cite

Thermodynamic properties of Ag–Au alloys measured by a solid-state electrolyte EMF method

Cited by 4 publications

References 22 publications

Non-activation synthesis and thermodynamic properties of ternary compounds of the Ag–Te–Br system

Non-activation synthesis and thermodynamic properties of ternary compounds of the Ag–Te–Br system

Gelation of Hydrophilic Polymer Bearing Metal-coordination Units with Au(III) Ions: Application to Synthesis of Porous Gold

Gelation of Hydrophilic Polymer Bearing Metal-coordination Units with Au(III) Ions: Application to Synthesis of Porous Gold

Contact Info

Product

Resources

About