While in situ Raman and Fourier transform infrared spectroscopy measurements have been reported on the In-based catalysts during the CO2RR, limited information has been obtained about the real active sites [13, 16, 30]. Herein, we propose a novel fine-grained corn design strategy of ...
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...
Employing in situ Raman microscopy, they used the vibration of the C-O bond (νC-O) in *CO species as a descriptor to understand the effects of the Cu/Au ratio on the *CO adsorption strength. It was found that with greater Cu coverage, νC-O experienced a red shift, which was ...
diffraction (XRD) and Raman spectra also show that the catalyst after in situ conversion was Ag, S dual-doped Cu2O/Cu (Supplementary Figs.9and10). The Ag,S-Cu2O/Cu spectra become unchanged after 10 min of conversion, which is consistent with the analysis of SEM and TEM. In detail, w...
In situ electrochemical measurements During in situ Raman measurements, a customized electrochemical cell filled with 0.5 M K2HPO4solution was used, and CO2/CO flowed until saturation through the gas flowmeter. Raman spectra were collected using a Renishaw inVia microprobe Raman spectrometer, employi...
For example, we do not have (i) high-pressure electrochemical reactors and their stacks that can withstand >200 bar, (ii) high-throughput screening tools for electrochemical synthesis at high pressures, and (iii) high-pressure electrochemical cells for operando FTIR, Raman, NMR, XAS, ambient ...
Journal of Raman SpectroscopyKneipp, K., Wang, Y., Berger, A. J., Dasari, R. R. and Feld, M. S. (1995), "Surface- enhanced Raman scattering of CO2 dissolved in aqueous colloidal solutions of silver and gold". J. Raman Spectrosc., 26: 959-962....
(Raman, XPS, and FTIR). Most of the 2D materials have sharp characteristic Raman peaks. Graphene, for example, exhibits D, G, and 2D peaks at 1360 cm−1, 1560 cm−1, and∼3250 cm−1[53] with a typical I2D/IGratio is the number of layer sensitive and is > 3 for ...
The underlying mechanism of cation effects on CO2RR remains debated. Herein, we study cation effects by simulating both outer-sphere electron transfer (OS-ET) and inner-sphere electron transfer (IS-ET) pathways during CO2RR via constrained density functi
CO2reduction reaction (CO2RR), and their corresponding reaction mechanisms have been thoroughly studied. In this review, we summarize the recent progress of applying MOFs and their derivatives in CO2RR, with a focus on the design strategies for electrocatalysts and electrolyzers. We first discussed ...