Composition control of alloy nanoparticles consisting of bulk-immiscible Au and Rh metals<i>via</i>an ionic liquid/metal sputtering technique for improving their electrocatalytic activity

Akiyoshi, Kozaburo; Watanabe, Yumezo; Kameyama, Tatsuya; Kawawaki, Tokuhisa; Kuwabata, Susumu; Torimoto, Tsukasa

doi:10.1039/d2cp01461k

Phys. Chem. Chem. Phys.

2022

DOI: 10.1039/d2cp01461k

|View full text |Cite

Composition control of alloy nanoparticles consisting of bulk-immiscible Au and Rh metalsviaan ionic liquid/metal sputtering technique for improving their electrocatalytic activity

Kozaburo Akiyoshi

Yumezo Watanabe

Tatsuya Kameyama

et al.

Abstract: AuRh alloy nanoparticles, prepared by simultaneous sputter deposition of Au and Rh metals on an ionic liquid, exhibited a surface composition-dependent electrocatalytic activity.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2023

2024

Publication Types

Select...

Article3

Relationship

Self Cite1

Independent2

Authors

Journals

Cited by 3 publications

References 89 publications

(115 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

Selective CO₂ Reduction Electrocatalysis Using AgCu Nanoalloys Prepared by a “Host–Guest” Method

Śliwa,

Zhang,

Gao

et al. 2024

Nano Lett.

View full text Add to dashboard Cite

Multimetallic nanoalloy catalysts have attracted considerable interest for enhancing the efficiency and selectivity of many electrochemically driven chemical processes. However, the preparation of homogeneous bimetallic alloy nanoparticles remains a challenge. Here, we present a room-temperature and scalable, host−guest approach for synthesis of dilute Cu in Ag alloy nanoparticles. In this approach, an ionic silver bromide precursor harboring exogenous Cu cations is reduced to yield ∼20 nm diameter AgCu alloy nanoparticles wherein the % Cu loading can be tuned precisely. AgCu nanoparticles with a 5% nominal loading of Cu exhibit peak activity (−0.23 mA/cm 2 normalized partial current density) and selectivity (83.2% faradaic efficiency) for CO product formation from electrocatalytic reduction of CO 2 at mild overpotentials. These AgCu nanoalloys exhibit a higher mass activity compared to Ag-and Cu-containing nanomaterials used for similar electrocatalytic transformations. Our host−guest synthesis platform holds promise for production of other nanoalloys with relevance in electrocatalysis and optics.

show abstract

Selective CO₂ Reduction Electrocatalysis Using AgCu Nanoalloys Prepared by a “Host–Guest” Method

Śliwa,

Zhang,

Gao

et al. 2024

Nano Lett.

View full text Add to dashboard Cite

show abstract

Theoretical insights into oxygen reduction reaction on Au-based single-atom alloy cluster catalysts

Pu,

Liu

2024

Chinese Journal of Chemical Physics

View full text Add to dashboard Cite

Developing highly active alloy catalysts that surpass the performance of platinum group metals in the oxygen reduction reaction (ORR) is critical in electrocatalysis. Gold-based single-atom alloy (AuSAA) clusters are gaining recognition as promising alternatives due to their potential for high activity. However, enhancing its activity of AuSAA clusters remains challenging due to limited insights into its actual active site in alkaline environments. Herein, we studied a variety of Au54M1 SAA cluster catalysts and revealed the operando formed MOx(OH)y complex acts as the crucial active site for catalyzing the ORR under the basic solution condition. The observed volcano plot indicates that Au54Co1, Au54M1, and Au54Ru1 clusters can be the optimal Au54M1 SAA cluster catalysts for the ORR. Our findings offer new insights into the actual active sites of AuSAA cluster catalysts, which will inform rational catalyst design in experimental settings.

show abstract

Development of Wet Vacuum Technologies with Ionic Liquids Inspired by a Pipe Dream Discussion

KUWABATA

2023

Electrochemistry

Self Cite

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Composition control of alloy nanoparticles consisting of bulk-immiscible Au and Rh metalsviaan ionic liquid/metal sputtering technique for improving their electrocatalytic activity

Abstract: AuRh alloy nanoparticles, prepared by simultaneous sputter deposition of Au and Rh metals on an ionic liquid, exhibited a surface composition-dependent electrocatalytic activity.

Cited by 3 publications

References 89 publications

Selective CO₂ Reduction Electrocatalysis Using AgCu Nanoalloys Prepared by a “Host–Guest” Method

Selective CO₂ Reduction Electrocatalysis Using AgCu Nanoalloys Prepared by a “Host–Guest” Method

Theoretical insights into oxygen reduction reaction on Au-based single-atom alloy cluster catalysts

Development of Wet Vacuum Technologies with Ionic Liquids Inspired by a Pipe Dream Discussion

Contact Info

Product

Resources

About

Composition control of alloy nanoparticles consisting of bulk-immiscible Au and Rh metalsviaan ionic liquid/metal sputtering technique for improving their electrocatalytic activity

Abstract: AuRh alloy nanoparticles, prepared by simultaneous sputter deposition of Au and Rh metals on an ionic liquid, exhibited a surface composition-dependent electrocatalytic activity.

Cited by 3 publications

References 89 publications

Selective CO2 Reduction Electrocatalysis Using AgCu Nanoalloys Prepared by a “Host–Guest” Method

Selective CO2 Reduction Electrocatalysis Using AgCu Nanoalloys Prepared by a “Host–Guest” Method

Theoretical insights into oxygen reduction reaction on Au-based single-atom alloy cluster catalysts

Development of Wet Vacuum Technologies with Ionic Liquids Inspired by a Pipe Dream Discussion

Contact Info

Product

Resources

About

Selective CO₂ Reduction Electrocatalysis Using AgCu Nanoalloys Prepared by a “Host–Guest” Method

Selective CO₂ Reduction Electrocatalysis Using AgCu Nanoalloys Prepared by a “Host–Guest” Method