Effect of Ni‐Doping on the Optical, Structural, and Electrochemical Properties of Ag29 Nanoclusters DOI Creative Commons
Abdullah Ahmed Ali Ahmed, Shana Havenridge, Koustav Sahoo

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 24, 2024

Abstract Atomically precise metal nanoclusters (NCs) can be compositionally controlled at the single‐atom level, but understanding structure‐property correlations is required for tailoring specific optical properties. Here, impact of Ni atom doping on optical, structural, and electrochemical properties atomically 1,3‐benzene dithiol (BDT) protected Ag 29 NCs studied. The Ni‐doped (NiAg 28 12 ) NCs, are synthesized using a co‐reduction method characterized electrospray ionization mass spectrometry (ESI MS), ion mobility (IMS), X‐ray photoelectron spectroscopy (XPS). Only single achieved despite changing precursor concentration. in exhibits enhanced thermal stability, electrocatalytic oxygen evolution reaction (OER) compared to parent NCs. Density functional theory (DFT) calculations predict geometry NiAg DFT also used study systematic effect metals such as Au, Cu, Pt into suggests that with Pt, d atomic orbitals contribute creating superatomic orbitals, which not seen other dopants or cluster. emission mechanism dominated by charge transfer from ligands core cluster regardless dopant.

Language: Английский

Hydrogen production catalysed by atomically precise metal clusters DOI

Tongxin Song,

Xiao Cai,

Yan Zhu

et al.

Nanoscale, Journal Year: 2024, Volume and Issue: 16(29), P. 13834 - 13846

Published: Jan. 1, 2024

Atomically precise metal clusters for electrocatalytic and photocatalytic H 2 production are systematically summarized, which is expected to provide new insights into the design of high-performance catalysts.

Language: Английский

Citations

5
Anion-Directed Assembly of a Bimetallic Pd/Ag Nanocluster: Synthesis, Characterization, and HER Activity DOI Creative Commons

Yu‐Rong Ni,

Rugma Thekke Pangal,

Michael N. Pillay

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(2), P. 404 - 404

Published: Jan. 18, 2025

Palladium-doped silver nanoclusters (NCs) have been highlighted for their unique physicochemical properties and potential applications in catalysis, optics, electronics. Anion-directed synthesis offers a powerful route to control the morphology of these NCs. Herein, we report novel Pd-doped Ag NC, [Pd(H)Ag13(S){S2P(OiPr)2}10] (PdHAg13S), synthesized through inclusion sulfide hydride anions. This NC features linear S-Pd-H axis enclosed 4-5-4 stacked arrangement atoms. The distinctive environment was characterized by NMR spectroscopy, total structure determined single-crystal X-ray diffraction (SCXRD) supported computational studies. Mass spectrometry photoelectron spectroscopy (XPS) further confirmed assigned composition. construct exhibits promising hydrogen evolution reaction (HER) activity. Our findings highlight anion-directed creating bimetallic NCs with tailored structures catalytic properties.

Language: Английский

Citations

0
Dimetallic praseodymium-cobalt carbon nanotubes as highly efficient electrocatalyst for oxygen reduction reaction DOI Creative Commons

Huazhong Liang,

Yu Dong,

Qin Ding

et al.

Carbon Trends, Journal Year: 2024, Volume and Issue: 15, P. 100350 - 100350

Published: April 4, 2024

In this study, six bimetallic rare earth (RE = La, Ce, Pr, Nd, Sm, Eu) cobalt nitrogen doped carbon nanotubes (RECo-NCNTs) were synthesized with g-C3N4 derivative method. These RECo-NCNTs characterized by SEM, BET, XPS, XRD and Raman. addition, their catalytic performances for oxygen reduction reaction (ORR) had also been tested. The introduction of earths did not destroy the structure but apparently change ORR performances. PrCo-NCNTs showed significant improvement in ability (onset potential 0.95 V half-wave 0.79 V), which is very close to that commercial 20% Pt/C. Moreover, exhibits an excellent stability (no activity decay after 10000st cycles) outstanding methanol toxic tolerance. Assembled metal–air batteries (Zn-air, Al-air Mg-air), electrode presents high power densities discharge voltages.

Language: Английский

Citations

1
Effect of Ni‐Doping on the Optical, Structural, and Electrochemical Properties of Ag29 Nanoclusters DOI Creative Commons
Abdullah Ahmed Ali Ahmed, Shana Havenridge, Koustav Sahoo

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 24, 2024

Abstract Atomically precise metal nanoclusters (NCs) can be compositionally controlled at the single‐atom level, but understanding structure‐property correlations is required for tailoring specific optical properties. Here, impact of Ni atom doping on optical, structural, and electrochemical properties atomically 1,3‐benzene dithiol (BDT) protected Ag 29 NCs studied. The Ni‐doped (NiAg 28 12 ) NCs, are synthesized using a co‐reduction method characterized electrospray ionization mass spectrometry (ESI MS), ion mobility (IMS), X‐ray photoelectron spectroscopy (XPS). Only single achieved despite changing precursor concentration. in exhibits enhanced thermal stability, electrocatalytic oxygen evolution reaction (OER) compared to parent NCs. Density functional theory (DFT) calculations predict geometry NiAg DFT also used study systematic effect metals such as Au, Cu, Pt into suggests that with Pt, d atomic orbitals contribute creating superatomic orbitals, which not seen other dopants or cluster. emission mechanism dominated by charge transfer from ligands core cluster regardless dopant.

Language: Английский

Citations

0