Electrochemical Aqueous Reduction Used in the Recovery of Critical and Precious Metals

Kirsi Yliniemi; Reima Herrala; Linfan Cui; Benjamin P. Wilson; Jaana Vapaavuori; Mari Lundström

doi:10.1007/978-3-031-67398-6_107

Electrochemical Aqueous Reduction Used in the Recovery of Critical and Precious Metals

Kirsi Yliniemi^*, Reima Herrala, Linfan Cui, Benjamin P. Wilson, Jaana Vapaavuori, Mari Lundström

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Abstract

The electrochemical aqueous reduction (EAR) method is studied for the recovery of precious metals from solutions typical in hydrometallurgy. In the first step, multivalent metal ions are reduced after which they spontaneously react with precious metal ions also present in the solution, resulting in the deposition on the electrode. The EAR mechanism and the deposit composition and morphology are studied with cyclic voltammetry, electrochemical quartz microbalance, and SEM-EDX. The results show that homogenously distributed Au or Pt nanoparticles can be deposited on the glassy carbon, ready for use in applications like catalysis.

Original language	English
Title of host publication	Proceedings of the 63rd Conference of Metallurgists, COM 2024
Place of Publication	Switzerland
Publisher	Springer
Pages	637-639
Number of pages	3
Volume	1
Edition	1
ISBN (Electronic)	978-3-031-67398-6
ISBN (Print)	978-3-031-67397-9
DOIs	https://doi.org/10.1007/978-3-031-67398-6_107
Publication status	Published - 2025
MoE publication type	A4 Conference publication
Event	Conference of Metallurgists: Electrometallurgy for a Net Zero Economy - Halifax Convention Centre, Halifax, Canada Duration: 19 Aug 2024 → 22 Aug 2024 Conference number: 63 https://com.metsoc.org/2024-summary/?_gl=11ncrl7n_gaMTAxNjY0NDAxOS4xNzA1MzkzNzYy_ga_6LXLQN99YLMTczMjA5NjA5My42LjAuMTczMjA5NjA5My4wLjAuMA.._gcl_auMTA1MjU5NTM5LjE3MzAxMTM1MzQ._ga_42LN0E7KMQ*MTczMjA5NjA5My42LjAuMTczMjA5NjA5My4wLjAuMA..

Conference

Conference	Conference of Metallurgists
Abbreviated title	COM
Country/Territory	Canada
City	Halifax
Period	19/08/2024 → 22/08/2024
Internet address	https://com.metsoc.org/2024-summary/?_gl=11ncrl7n_gaMTAxNjY0NDAxOS4xNzA1MzkzNzYy_ga_6LXLQN99YLMTczMjA5NjA5My42LjAuMTczMjA5NjA5My4wLjAuMA.._gcl_auMTA1MjU5NTM5LjE3MzAxMTM1MzQ._ga_42LN0E7KMQ*MTczMjA5NjA5My42LjAuMTczMjA5NjA5My4wLjAuMA..

Keywords

Hydrometallurgy
Pt
Au

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1007/978-3-031-67398-6_107

Embargoed Document

CHEM_Yliniemi_et_al_Electrochemical_Aqueous_COM2024
Accepted author manuscript, 368 KB
Licence: Unspecified
Embargo ends: 19/11/2025

2 Active

EARMetal, Hydro: Electrochemically Assisted Aqueous Reduction of Waste Streams for Metals Recovery and Functional Surfaces
Lundström, M. (Principal investigator)
01/09/2021 → 31/08/2025
Project: Academy of Finland: Other research funding
EARMetal: Electrochemically-Assisted Aqueous Reduction of Waste Streams for Metals Recoveryand Functional Surfaces (EARMetal
Vapaavuori, J. (Principal investigator)
01/09/2021 → 31/08/2025
Project: Academy of Finland: Other research funding

Raw Materials Research Infrastructure
Karppinen, M. (Manager)
School of Chemical Engineering
Facility/equipment: Facility

1 Article

Recovery of Gold as Nanoparticles from Gold-Poor Au-Cu-Cl Solutions
Herrala, R., Wang, Z., Vapaavuori, J., Lundström, M. & Yliniemi, K., 17 Aug 2023, In: Journal of Physical Chemistry C. 127, 32, p. 16099–16109
Research output: Contribution to journal › Article › Scientific › peer-review

Open Access
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2 Citations (Scopus)

53 Downloads (Pure)

Cite this

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title = "Electrochemical Aqueous Reduction Used in the Recovery of Critical and Precious Metals",

abstract = "The electrochemical aqueous reduction (EAR) method is studied for the recovery of precious metals from solutions typical in hydrometallurgy. In the first step, multivalent metal ions are reduced after which they spontaneously react with precious metal ions also present in the solution, resulting in the deposition on the electrode. The EAR mechanism and the deposit composition and morphology are studied with cyclic voltammetry, electrochemical quartz microbalance, and SEM-EDX. The results show that homogenously distributed Au or Pt nanoparticles can be deposited on the glassy carbon, ready for use in applications like catalysis.",

keywords = "Hydrometallurgy, Pt, Au",

author = "Kirsi Yliniemi and Reima Herrala and Linfan Cui and Wilson, {Benjamin P.} and Jaana Vapaavuori and Mari Lundstr{\"o}m",

year = "2025",

doi = "10.1007/978-3-031-67398-6_107",

language = "English",

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booktitle = "Proceedings of the 63rd Conference of Metallurgists, COM 2024",

publisher = "Springer",

address = "Germany",

edition = "1",

note = "Conference of Metallurgists : Electrometallurgy for a Net Zero Economy, COM ; Conference date: 19-08-2024 Through 22-08-2024",

url = "https://com.metsoc.org/2024-summary/?_gl=1*1ncrl7n*_ga*MTAxNjY0NDAxOS4xNzA1MzkzNzYy*_ga_6LXLQN99YL*MTczMjA5NjA5My42LjAuMTczMjA5NjA5My4wLjAuMA..*_gcl_au*MTA1MjU5NTM5LjE3MzAxMTM1MzQ.*_ga_42LN0E7KMQ*MTczMjA5NjA5My42LjAuMTczMjA5NjA5My4wLjAuMA..",

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Yliniemi, K , Herrala, R, Cui, L, Wilson, BP , Vapaavuori, J & Lundström, M 2025, Electrochemical Aqueous Reduction Used in the Recovery of Critical and Precious Metals. in Proceedings of the 63rd Conference of Metallurgists, COM 2024. 1 edn, vol. 1, Springer, Switzerland, pp. 637-639, Conference of Metallurgists, Halifax, Nova Scotia, Canada, 19/08/2024. https://doi.org/10.1007/978-3-031-67398-6_107

Electrochemical Aqueous Reduction Used in the Recovery of Critical and Precious Metals. / Yliniemi, Kirsi ; Herrala, Reima; Cui, Linfan et al.
Proceedings of the 63rd Conference of Metallurgists, COM 2024. Vol. 1 1. ed. Switzerland: Springer, 2025. p. 637-639.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

T1 - Electrochemical Aqueous Reduction Used in the Recovery of Critical and Precious Metals

AU - Yliniemi, Kirsi

AU - Herrala, Reima

AU - Cui, Linfan

AU - Wilson, Benjamin P.

AU - Vapaavuori, Jaana

AU - Lundström, Mari

N1 - Conference code: 63

PY - 2025

Y1 - 2025

N2 - The electrochemical aqueous reduction (EAR) method is studied for the recovery of precious metals from solutions typical in hydrometallurgy. In the first step, multivalent metal ions are reduced after which they spontaneously react with precious metal ions also present in the solution, resulting in the deposition on the electrode. The EAR mechanism and the deposit composition and morphology are studied with cyclic voltammetry, electrochemical quartz microbalance, and SEM-EDX. The results show that homogenously distributed Au or Pt nanoparticles can be deposited on the glassy carbon, ready for use in applications like catalysis.

AB - The electrochemical aqueous reduction (EAR) method is studied for the recovery of precious metals from solutions typical in hydrometallurgy. In the first step, multivalent metal ions are reduced after which they spontaneously react with precious metal ions also present in the solution, resulting in the deposition on the electrode. The EAR mechanism and the deposit composition and morphology are studied with cyclic voltammetry, electrochemical quartz microbalance, and SEM-EDX. The results show that homogenously distributed Au or Pt nanoparticles can be deposited on the glassy carbon, ready for use in applications like catalysis.

KW - Hydrometallurgy

KW - Pt

KW - Au

U2 - 10.1007/978-3-031-67398-6_107

DO - 10.1007/978-3-031-67398-6_107

M3 - Conference article in proceedings

SN - 978-3-031-67397-9

VL - 1

SP - 637

EP - 639

BT - Proceedings of the 63rd Conference of Metallurgists, COM 2024

PB - Springer

CY - Switzerland

T2 - Conference of Metallurgists

Y2 - 19 August 2024 through 22 August 2024

ER -

Electrochemical Aqueous Reduction Used in the Recovery of Critical and Precious Metals

Abstract

Conference

Keywords

UN SDGs

Access to Document

Embargoed Document

Fingerprint

Projects

EARMetal, Hydro: Electrochemically Assisted Aqueous Reduction of Waste Streams for Metals Recovery and Functional Surfaces

EARMetal: Electrochemically-Assisted Aqueous Reduction of Waste Streams for Metals Recoveryand Functional Surfaces (EARMetal

Equipment

Raw Materials Research Infrastructure

Research output

Recovery of Gold as Nanoparticles from Gold-Poor Au-Cu-Cl Solutions

Cite this