Operando toolbox for heterogeneous interface in electrocatalysis

Long, Chang; Han, Jianyu; Guo, Jun; Yang, Caoyu; Liu, Shaoqin; Tang, Zhiyong

doi:10.1016/j.checat.2021.07.012

Cited by 30 publications

(23 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Section: Resultsmentioning

confidence: 99%

“…It is well known that the more surface atoms and defect sites of NCs can greatly accelerate the absorption and activation of H + and OH − , thereby boosting the electrocatalytic performance. [24][25][26] The key factor of dual-confinement by introducing a polymer was also investigated via the thermogravimetric analysis (TGA). According to the results (Fig.…”

Section: Dalton Transactions Papermentioning

confidence: 99%

See 1 more Smart Citation

A dual-confinement strategy to construct cobalt-based phosphide nanoclusters within carbon nanofibers for bifunctional water splitting electrocatalysts

Chen

Huang

et al. 2022

Dalton Trans.

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Dalton Transactions Papermentioning

confidence: 99%

A dual-confinement strategy to construct cobalt-based phosphide nanoclusters within carbon nanofibers for bifunctional water splitting electrocatalysts

Chen

Huang

et al. 2022

Dalton Trans.

View full text Add to dashboard Cite

show abstract

“…Mössbauer spectroscopy, based on the Mössbauer effect, is a technique for detecting the nuclear state of certain specific elements (e.g., Fe, Sn, Ru, and Au). In-situ Mössbauer spectroscopy can track nuclei states of these elements in real time, including chemical state, coordination symmetry, spin state, and magnetic moment [104,105]. Specifically, the isomer shift (IS) parameter, interrelated with the electronic structure, can ascertain the information about the chemical shifts.…”

Section: In-situ Mössbauer Spectroscopymentioning

confidence: 99%

A Review of In-Situ Techniques for Probing Active Sites and Mechanisms of Electrocatalytic Oxygen Reduction Reactions

et al. 2022

View full text Add to dashboard Cite

Electrocatalytic oxygen reduction reaction (ORR) is one of the most important reactions in electrochemical energy technologies such as fuel cells and metal–O2/air batteries, etc. However, the essential catalysts to overcome its slow reaction kinetic always undergo a complex dynamic evolution in the actual catalytic process, and the concomitant intermediates and catalytic products also occur continuous conversion and reconstruction. This makes them difficult to be accurately captured, making the identification of ORR active sites and the elucidation of ORR mechanisms difficult. Thus, it is necessary to use extensive in-situ characterization techniques to proceed the real-time monitoring of the catalyst structure and the evolution state of intermediates and products during ORR. This work reviews the major advances in the use of various in-situ techniques to characterize the catalytic processes of various catalysts. Specifically, the catalyst structure evolutions revealed directly by in-situ techniques are systematically summarized, such as phase, valence, electronic transfer, coordination, and spin states varies. In-situ revelation of intermediate adsorption/desorption behavior, and the real-time monitoring of the product nucleation, growth, and reconstruction evolution are equally emphasized in the discussion. Other interference factors, as well as in-situ signal assignment with the aid of theoretical calculations, are also covered. Finally, some major challenges and prospects of in-situ techniques for future catalysts research in the ORR process are proposed.

show abstract

“… 7 , 8 To enable a rational design of electrocatalysts, an in-depth understanding of the complex chemical occurrences at the electrochemical interface during a reaction (e.g., adsorption and desorption, charge and electron transfer, solvation and desolvation, and electrostatic interactions) is of high importance and the basis for engineering and optimizing electrocatalytic systems. 2 , 7 , 9 − 11 …”

Section: Introductionmentioning

confidence: 99%

Operando Scanning Electrochemical Probe Microscopy during Electrocatalysis

et al. 2023

View full text Add to dashboard Cite

Scanning electrochemical probe microscopy (SEPM) techniques can disclose the local electrochemical reactivity of interfaces in single-entity and sub-entity studies. Operando SEPM measurements consist of using a SEPM tip to investigate the performance of electrocatalysts, while the reactivity of the interface is simultaneously modulated. This powerful combination can correlate electrochemical activity with changes in surface properties, e.g., topography and structure, as well as provide insight into reaction mechanisms. The focus of this review is to reveal the recent progress in local SEPM measurements of the catalytic activity of a surface toward the reduction and evolution of O2 and H2 and electrochemical conversion of CO2. The capabilities of SEPMs are showcased, and the possibility of coupling other techniques to SEPMs is presented. Emphasis is given to scanning electrochemical microscopy (SECM), scanning ion conductance microscopy (SICM), electrochemical scanning tunneling microscopy (EC-STM), and scanning electrochemical cell microscopy (SECCM).

show abstract

Operando toolbox for heterogeneous interface in electrocatalysis

Cited by 30 publications

References 51 publications

A dual-confinement strategy to construct cobalt-based phosphide nanoclusters within carbon nanofibers for bifunctional water splitting electrocatalysts

A dual-confinement strategy to construct cobalt-based phosphide nanoclusters within carbon nanofibers for bifunctional water splitting electrocatalysts

A Review of In-Situ Techniques for Probing Active Sites and Mechanisms of Electrocatalytic Oxygen Reduction Reactions

Operando Scanning Electrochemical Probe Microscopy during Electrocatalysis

Contact Info

Product

Resources

About