Spectroscopy with Single Atoms in Atomic Beams

2016 ◽  
pp. 73-108
Author(s):  
Zbigniew Ficek ◽  
Ryszard Tanaś
Keyword(s):  
Single Atoms ◽  
Atomic Beams

Single atoms spied on graphene sliver

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

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>

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

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

Controllable Coordination of Phosphotungstic Acid-Modified Carbon Matrix for Anchoring Different Sizes of Pt Species: From Single Atoms, Subnanoclusters to Nanoparticles

2021 ◽  
Author(s):  
Jiazhe Li ◽  
Zhiyuan Yan ◽  
Lingxiang Bao ◽  
Cheng-Hui Sun ◽  
Si-Ping Pang
Keyword(s):  
Phosphotungstic Acid ◽  
Carbon Matrix ◽  
High Density ◽  
Coordination Environment ◽  
Single Atoms

Pt species with different sizes uniformly dispersed on phosphotungstic (PTA) acid modified carbon matrix (PTA-C) were controllably synthesized by manipulating the coordination environment. The results indicate that high-density and well-defined...

Synthesis of Cu Single Atoms Supported on Mesoporous Graphitic Carbon Nitride and Their Application in Liquid-Phase Aerobic Oxidation of Cyclohexene

ACS Catalysis ◽  
2021 ◽  
pp. 7863-7875
Author(s):  
Julia Büker ◽  
Xiubing Huang ◽  
Johannes Bitzer ◽  
Wolfgang Kleist ◽  
Martin Muhler ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Carbon Nitride ◽  
Aerobic Oxidation ◽  
Graphitic Carbon ◽  
Graphitic Carbon Nitride ◽  
Single Atoms

Co and Pt Dual‐Single‐Atoms with Oxygen‐Coordinated Co–O–Pt Dimer Sites for Ultrahigh Photocatalytic Hydrogen Evolution Efficiency

2021 ◽  
pp. 2003327
Author(s):  
Cong Wang ◽  
Kaiwen Wang ◽  
Yibo Feng ◽  
Chong Li ◽  
Xiaoyuan Zhou ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Photocatalytic Hydrogen Evolution ◽  
Single Atoms

Nanofabrication using self-narrowing atomic beams

1997 ◽  
Vol 35 (1-4) ◽  
pp. 357-359 ◽  
Author(s):  
Victor T. Petrashov
Keyword(s):  
Atomic Beams

Cobalt Single Atoms Embedded in Nitrogen‐Doped Graphene for Selective Oxidation of Benzyl Alcohol by Activated Peroxymonosulfate

Small ◽  
2021 ◽  
pp. 2004579
Author(s):  
Jiaquan Li ◽  
Shiyong Zhao ◽  
Lianji Zhang ◽  
San Ping Jiang ◽  
Shi‐Ze Yang ◽  
...  
Keyword(s):  
Benzyl Alcohol ◽  
Selective Oxidation ◽  
Nitrogen Doped ◽  
Single Atoms ◽  
Oxidation Of Benzyl Alcohol ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene
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