Here, we employ in situ electrochemical surface-enhanced Raman spectroscopy (SERS) and density functional theory (DFT) calculation techniques to examine the ORR process at Pt() surfaces. Direct spectroscopic ev
Here, we employ in situ electrochemical surface-enhanced Raman spectroscopy (SERS) and density functional theory (DFT) calculation techniques to examine the ORR process at Pt(hkl) surfaces. Direct spectroscopic evidence for ORR intermediates indicates that, under acidic conditions, the pathway of ORR ...
Electrochemical measurements in conjunction with in situ Raman analysis displayed that the MXene coating effectively prevented the structural deterioration and irreversible redox mechanism of PPy during the electrochemical analysis. The synthesized MXene@PPy composite when used as a flexible RAB device (Fig...
X-ray absorption spectroscopy (XAS) has become an indispensable tool to in situ investigate dynamic natures of electrocatalysts but still suffers from limited energy resolution, leading to significant electronic transitions poorly resolved. Herein, we highlight advanced X-ray spectroscopies beyond ...
The in situ Raman spectroscopy analysis and DFT calculations further confirmed that Co sites were the active sites of ORR. This work elucidates that the construction of efficient active centers plays an important role in achieving highly efficient ORR catalysts. Recently, Zhou group reported a new ...
situ Raman spectroscopy and even in situXRD. The atomic-scale changes can be observed during theelectrochemical reactionwithout disassembling the testing device. In situ andoperandotechniques with real-time monitoring are also indispensable to probe the mechanism of the electrocatalytic reaction by ...
in situ on foamed nickel with a reaction time of 20 h.eSEM image of NiO–NiSe electrode after initially charging to 3.0 V.fAt a current density of 20 mA g−1, the initial discharge and charge and discharge curves of the NiO–NiSe electrode in the voltage range of 0.1–3.0 V were ...
A variety of post-mortem MRI approaches have been implemented, including scanning of fixed whole brains or hemispheres [77, 134, 135, 137–140], cor- onal brain slices [141, 142], un-fixed whole brains [134] and brains in situ [143]. Frequently, post-mortem MRI is used for the ...
we revisit the semiconductor–electrolyte interface and unravel a universal self-gating phenomenon through microcell-based in situ electronic/electrochemical measurements to clarify the electronic-conduction modulation of semiconductors during the electrocatalytic reaction. We then demonstrate that the type of...
Here we employ a solid-state Li4+xTi5O12/LiPON/LixV2O5 cell and examine in situ the chemistry of Li-O2 reaction products on LixV2O5 as a function of applied voltage under ultra high vacuum (UHV) and at 500 mtorr of oxygen pressure using ambient pressure X-ray photoelectron spectroscopy ...