scholarly journals Nurturing the marriages of single atoms with atomic clusters and nanoparticles for better heterogeneous electrocatalysis

2022 ◽  
Author(s):  
Lei Zhang ◽  
Jiawei Zhu ◽  
Xin Li ◽  
Shichun Mu ◽  
Francis Verpoort ◽  
...  
Keyword(s):  
Atomic Clusters ◽  
Single Atoms

Overwhelming the Performance of Single Atoms with Atomic Clusters for Platinum-Catalyzed Hydrogen Evolution

ACS Catalysis ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 8213-8223 ◽  
Author(s):  
Minghao Sun ◽  
Jiapeng Ji ◽  
Mingyu Hu ◽  
Mouyi Weng ◽  
Yaping Zhang ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Atomic Clusters ◽  
Single Atoms

Single atoms spied on graphene sliver

Nature ◽  
2008 ◽  
Author(s):  
Katharine Sanderson
Keyword(s):  
Single Atoms

Characteristics of (e,2e) processes with atomic clusters targets

1999 ◽  
Vol 09 (PR6) ◽  
pp. Pr6-181-Pr6-184
Author(s):  
S. Keller ◽  
E. Engel ◽  
U. Lechner ◽  
R. M. Dreizler
Keyword(s):  
Atomic Clusters

Tunable Carbon Surface from Mono- to Multi-Metallic Single Atoms

2020 ◽  
Author(s):  
Weihong Lai ◽  
Heng Wang ◽  
Quan jiang ◽  
Zichao Yan ◽  
Hanwen Liu ◽  
...  
Keyword(s):  
Synergistic Effects ◽  
Structural Evolution ◽  
Charge Compensation ◽  
Catalytic Reactions ◽  
Single Atom ◽  
Carbon Surface ◽  
Hydrogen Electrode ◽  
Single Atoms ◽  
Mass Activity ◽  
Co Doped

<p>Herein, we develop a non-selective charge compensation strategy to prepare multi-single-atom doped carbon (MSAC) in which a sodium p-toluenesulfonate (PTS-Na) doped polypyrrole (S-PPy) polymer is designed to anchor discretionary mixtures of multiple metal cations, including iron (Fe<sup>3+</sup>), cobalt (Co<sup>3+</sup>), ruthenium (Ru<sup>3+</sup>), palladium (Pd<sup>2+</sup>), indium (In<sup>3+</sup>), iridium (Ir<sup>2+</sup>), and platinum (Pt<sup>2+</sup>) . As illustrated in Figure 1, the carbon surface can be tuned with different level of compositional complexities, including unary Pt<sub>1</sub>@NC, binary (MSAC-2, (PtFe)<sub>1</sub>@NC), ternary (MSAC-3, (PtFeIr)<sub>1</sub>@NC), quaternary (MSAC-4, (PtFeIrRu)<sub>1</sub>@NC), quinary (MSAC-5, (PtFeIrRuCo)<sub>1</sub>@NC), senary (MSAC-6, (PtFeIrRuCoPd)<sub>1</sub>@NC), and septenary (MSAC-7, (PtFeIrRuCoPdIn)<sub>1</sub>@NC) samples. The structural evolution of carbon surface dictates the activities of both ORR and HER. The senary MSAC-6 achieves the ORR mass activity of 18.1 A·mg<sub>metal</sub><sup>-1</sup> at 0.9 V (Vs reversible hydrogen electrode (RHE)) over 30K cycles, which is 164 times higher than that of commercial Pt/C. The quaternary MSAC-4 presented a comparable HER catalytic capability with that of Pt/C. These results indicate that the highly complexed carbon surface can enhance its ability over general electrochemical catalytic reactions. The mechanisms regarding of the ORR and HER activities of the alternated carbon surface are also theoretically and experimentally investigated in this work, showing that the synergistic effects amongst the co-doped atoms can activate or inactivate certain single-atom sites.</p>

SIZE-DEPENDENT EFFECTS IN ATOMIC CLUSTERS

2020 ◽  
Author(s):  
A. S. Sharipov ◽  
◽  
B. I. Loukhovitski ◽  
Keyword(s):  
Binding Energy ◽  
Physical Properties ◽  
Size Dependence ◽  
Atomic Clusters ◽  
Energy Collision ◽  
Size Dependent

The size-dependence of different physical properties of atomic clusters (by the example of binding energy, collision diameter, and static isotropic polarizability) is discussed.

Modelling the Initial Stages of Condensation of As-S Atomic Clusters

2018 ◽  
Vol 10 (3) ◽  
pp. 03012-1-03012-9
Author(s):  
А. V. Dalekorej ◽  
◽  
V. S. Kovtunenko ◽  
М. V. Stoika ◽  
◽  
...  
Keyword(s):  
Atomic Clusters

scholarly journals Tunable quantum switcher and router of single atoms using localized artificial magnetic fields

2020 ◽  
Vol 2 (3) ◽  
Author(s):  
Yan-Jun Zhao ◽  
Ning Tan ◽  
Dongyang Yu ◽  
Boyang Liu ◽  
Wu-Ming Liu
Keyword(s):  
Magnetic Fields ◽  
Single Atoms

Density functional theory studies of boron clusters with exotic properties in bonding, aromaticity and reactivity

2021 ◽  
Author(s):  
Dongbo Zhao ◽  
Xin He ◽  
Meng Li ◽  
Bin Wang ◽  
Chunna Guo ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Density Functional ◽  
Atomic Clusters ◽  
Functional Theory ◽  
Boron Clusters ◽  
Size And Structure

Atomic clusters are unique in many perspectives because of their size and structure features and are continuously being applied for different purposes.

Spatially Confined Formation of Single Atoms in Highly Porous Carbon Nitride Nanoreactors

ACS Nano ◽  
2021 ◽  
Author(s):  
Yunpeng Zuo ◽  
Tingting Li ◽  
Ning Zhang ◽  
Tianyun Jing ◽  
Dewei Rao ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Carbon Nitride ◽  
Single Atoms ◽  
Highly Porous
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