The ''rolling up'' effect of platinum layer obtained on nickel surface by interaction with solution of H2PtCl6 and its electrocatalytic properties in hydrogen evolution reaction during water electrolysis in alkaline medium

Kaneva, M.V.; Tolstoy, Valeri P.

doi:10.17586/2220-8054-2021-12-5-630-633

Cited by 2 publications

(2 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The aim of this paper is to study the application characteristics of SERS substrates of Pt(0) microscrolls produced on the nickel surface as a result of galvanic replacement reaction (GRR) between its atoms and anions in H 2 PtCl 6 aqueous solution. For the first time in this way, such microscrolls were obtained in the work [20]. It was shown that they exhibit active electrocatalytic properties in the hydrogen evolution reaction during water electrolysis in an alkaline medium.…”

Section: Introductionmentioning

confidence: 90%

Pt(0) microscrolls obtained on nickel surface by galvanic replacement reaction in H2PtCl6 solution as the basis for creating new SERS substrates

Kaneva¹,

Borisov²,

Tolstoy³

2022

Nanosystems: Phys. Chem. Math.

View full text Add to dashboard Cite

The paper explores the morphology features of Pt(0) nanolayers obtained on the surface of chemically polished nickel as a result of the galvanic replacement reaction using H 2 PtCl 6 solution. In a series of samples synthesized at a treatment time of 1-60 minutes, it is shown that the nanolayers consist of Pt(0) nanocrystals 5-10 nm in size, which form a continuous porous layer with a thickness depending on the treatment time in solution. For example, it is about 80 nm and 120 nm for samples obtained after 3 minutes and 20 minutes, respectively. Moreover, on the outer side of the nanolayer with respect to the substrate, these nanocrystals form arrays of pointed agglomerates directed along the normal to the surface. After drying in air, the Pt(0) nanolayer cracks and partially folded microscrolls form on the nickel surface, the number of which is the largest for the samples obtained with a longer treatment time. The features of the practical application of these samples as SERS substrates are studied using the Raman spectra of Rodamin 6G as an example. It is shown that the amplification factor is about 10 5 -10 6 using 532 nm laser excitation. KEYWORDS platinum, nanocrystals, microscrolls, galvanic replacement reaction, SERS.

show abstract

Section: Introductionmentioning

confidence: 90%

Pt(0) microscrolls obtained on nickel surface by galvanic replacement reaction in H2PtCl6 solution as the basis for creating new SERS substrates

Kaneva¹,

Borisov²,

Tolstoy³

2022

Nanosystems: Phys. Chem. Math.

View full text Add to dashboard Cite

show abstract

“…In studies, this reaction is employed to produce partially ''twisted'' Pt(0) microscrolls on the Ni surface. 9 It is demonstrated that such microscrolls can be employed as electrocatalysts for the hydrogen evolution reaction (HER) during water electrolysis and as substrates for surfaceenhanced Raman spectroscopy (SERS). 10 It is observed that when Ni is brought into contact with the H 2 PtCl 6 solution, a GRR reaction occurs.…”

mentioning

confidence: 99%

Rapid synthesis of Pt(0) motors-microscrolls on a nickel surface via H₂PtCl₆-induced galvanic replacement reaction

Tolstoy,

Nikitin,

Kuzin

et al. 2024

Chem. Commun.

View full text Add to dashboard Cite

show abstract

The ''rolling up'' effect of platinum layer obtained on nickel surface by interaction with solution of H2PtCl6 and its electrocatalytic properties in hydrogen evolution reaction during water electrolysis in alkaline medium

Cited by 2 publications

References 13 publications

Pt(0) microscrolls obtained on nickel surface by galvanic replacement reaction in H2PtCl6 solution as the basis for creating new SERS substrates

Pt(0) microscrolls obtained on nickel surface by galvanic replacement reaction in H2PtCl6 solution as the basis for creating new SERS substrates

Rapid synthesis of Pt(0) motors-microscrolls on a nickel surface via H₂PtCl₆-induced galvanic replacement reaction

Contact Info

Product

Resources

About

The ''rolling up'' effect of platinum layer obtained on nickel surface by interaction with solution of H2PtCl6 and its electrocatalytic properties in hydrogen evolution reaction during water electrolysis in alkaline medium

Cited by 2 publications

References 13 publications

Pt(0) microscrolls obtained on nickel surface by galvanic replacement reaction in H2PtCl6 solution as the basis for creating new SERS substrates

Pt(0) microscrolls obtained on nickel surface by galvanic replacement reaction in H2PtCl6 solution as the basis for creating new SERS substrates

Rapid synthesis of Pt(0) motors-microscrolls on a nickel surface via H2PtCl6-induced galvanic replacement reaction

Contact Info

Product

Resources

About

Rapid synthesis of Pt(0) motors-microscrolls on a nickel surface via H₂PtCl₆-induced galvanic replacement reaction