Observing atomic layer electrodeposition on single nanocrystals surface by dark field spectroscopy

Hu, Shu; Yi, Jun; Zhang, Yuejiao; Lin, Kai-Qiang; Liu, Bi-Ju; Chen, Liang; Zhan, Chao; Lei, Zhichao; Sun, Jingya; Zong, Cheng; Li, Jianfeng; Ren, Bin

doi:10.1038/s41467-020-16405-3

Cited by 54 publications

(48 citation statements)

References 34 publications

(35 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It thus requires illumination at high angle and collection with a lower numerical aperture objective, which limits the number of photons collected and therefore the detection sensitivity. The NP size limit is ~40nm, for Ag, but can be improved to ~10nm when using a high 𝑁𝐴 water immersion objective [59]. Commonly DFM is used upon trans-illumination, probing the forward scattered field.…”

Section: [322] Dark-field Microscopymentioning

confidence: 99%

Electrochemistry and Optical Microscopy

Kanoufi

2021

Encyclopedia of Electrochemistry

View full text Add to dashboard Cite

Electrochemistry exploits local current heterogeneities at various scales ranging from the micrometer to the nanometer. The last decade has witnessed unprecedented progress in the development of a wide range of electroanalytical techniques allowing to reveal and quantify such heterogeneity through multiscale and multifonctionnal operando probing of electrochemical processes. However most of these advanced electrochemical imaging techniques, employing scanning probes, suffer from either low imaging throughput or limited imaging size. In parallel, optical microscopies, which can image a wide field of view in a single snapshot, have made considerable progress in terms of sensitivity, resolution and implementation of detection modes. Optical microscopies are then mature enough to propose, with basic bench equipment, to probe in a non destructive way a wide range of optical (and therefore structural) properties of a material in situ, in real time: under operating conditions. They offer promising alternative strategies for quantitative high-resolution imaging of electrochemistry. The first sections recall the optical properties of materials and how they can be probed optically. They discuss fluorescence, Raman, surface plasmon resonance, scattering or refractive index. Then the different optical microscopes used to image electrochemical processes are examined along with some strategies to extract quantitative electrochemical information from optical images. Finally the last section reviews some examples of in situ imaging, at micro-to nanometer resolution, and quantification of electrochemical processes ranging from solution diffusion to the conversion of molecular interfaces or solids.]

show abstract

Section: [322] Dark-field Microscopymentioning

confidence: 99%

Electrochemistry and Optical Microscopy

Kanoufi

2021

Encyclopedia of Electrochemistry

View full text Add to dashboard Cite

show abstract

“…Under the control of the UPD mechanism, the presynthesized noble‐metal seeds can induce the reduction of fewer noble‐metal ions. [ 160 ] Under this UPD mechanism, various noble‐metal composites have been prepared, such as Cu–Au nanoparticles, [ 146 ] an Ag–Au(111) layer, [ 161,162 ] Ag–Au octahedra, [ 163 ] Ag–Au–Ag dogbone‐like nanorods, [ 164 ] tetrahexahedral Pd–Ag alloy nanocrystals, [ 160 ] Pd@Ru nanosheets, [ 165 ] PtCu nanodendrites, [ 166 ] and PbS nanorod–GO film. [ 167 ]…”

Section: Overview Of Synthesis Strategies For Noble‐metal Compositesmentioning

confidence: 99%

Rational Component and Structure Design of Noble‐Metal Composites for Optical and Catalytic Applications

Zeng

Zhao

et al. 2021

Small Structures

View full text Add to dashboard Cite

Great effort has recently been made to develop noble‐metal nanomaterials with good activity, high durability, and appropriate selectivity to improve their efficiency in functional applications, while maintaining low cost. The use of noble metals not only makes the last requirement hard to meet but also restricts stability at high temperatures and limits mass production. Recently, some promising strategies, such as optimizing the components and fine‐tuning the structure, have been explored, which promise to enable the fabrication of unique noble‐metal nanostructures with lower loading and higher stability. Herein, recent achievements in manufacturing noble‐metal composites are reviewed, particularly focusing on unique and key factors in rational design and control of structure and components. Two applications of noble‐metal composites in optical and catalytic applications are focused on to illustrate their rational synthesis and design. In addition, current challenges and prospects for future development in this rapidly blossoming field are discussed.

show abstract

“…E.g. coupling electrochemistry to high resolution label‐free optical microscopy [15–17] has proved to be effective to monitor metal deposition at single NPs with high temporal resolution and sensitivity, [18–21] as well as to differentiate metallic NPs from other nanoobjects (e.g. dielectric NPs, [22–25] gas nanobubbles [26, 27] ).…”

Section: Figurementioning

confidence: 99%

Deciphering Competitive Routes for Nickel‐Based Nanoparticle Electrodeposition by an Operando Optical Monitoring

et al. 2021

View full text Add to dashboard Cite

Electrodeposition of earth‐abundant iron group metals such as nickel is difficult to characterize by simple electrochemical analyses since the reduction of their metal salts often competes with inhibiting reactions. This makes the mechanistic interpretation sometimes contradictory, preventing unambiguous predictions about the nature and structure of the electrodeposited material. Herein, the complexity of Ni nanoparticles (NPs) electrodeposition on indium tin oxide (ITO) is unraveled operando and at a single entity NP level by optical microscopy correlated to ex situ SEM imaging. Our correlative approach allows differentiating the dynamics of formation of two different NP populations, metallic Ni and Ni(OH)2 with a <25 nm limit of detection, their formation being ruled by the competition between Ni2+ and water reduction. At the single NP level this results in a self‐terminated growth, an information which is most often hidden in ensemble averaged measurements.

show abstract

Observing atomic layer electrodeposition on single nanocrystals surface by dark field spectroscopy

Cited by 54 publications

References 34 publications

Electrochemistry and Optical Microscopy

Electrochemistry and Optical Microscopy

Rational Component and Structure Design of Noble‐Metal Composites for Optical and Catalytic Applications

Deciphering Competitive Routes for Nickel‐Based Nanoparticle Electrodeposition by an Operando Optical Monitoring

Contact Info

Product

Resources

About