N-doped CNT as electron transport promoter by bridging CoP and carbon cloth toward enhanced alkaline hydrogen evolution

Boosting Hydrogen Evolution Electrocatalysis via Regulating the Electronic Structure in a Crystalline–Amorphous CoP/CeOx p–n Heterojunction

“…For the high-resolution Co 2p core-level spectrum of CoP/CeO x -20:1 in Figure 4b, the deconvoluted peaks are ascribed to the Co 2p 3/2 peaks region at the binding energies of 778.89, 781.63, and 785.50 eV (satellite peak), and the peaks of 793.88 and 797.76 eV and satellite peak at 802.66 eV are assigned to the Co 2p 1/2 region. 21,37,38 Furthermore, the two peaks located at 778.89 and 793.88 eV are attributed to Co−P species, while the other peaks correspond to Co 2+ owing to superficial oxidation of phosphide. 39 Moreover, all of the characteristic peaks are shifted toward lower binding energies compared to pure CoP, which indicates the charge redistribution and electron transfer from amorphous CeO x to CoP.…”

Online Monitoring of Indole-3-acetic Acid in Living Plants Based on Nitrogen-Doped Carbon Nanotubes/Core–shell Au@Cu2O Nanoparticles/Carbon Fiber Electrochemical Microsensor

“…There are two obvious Raman peaks located at 1340 and 1570 cm –1 , which belong to carbon atoms. The peak at 1340 cm –1 corresponds to the D-band, and the peak intensity is related to the edge defects and disorder degree of the carbon sample . The peak at 1570 cm –1 corresponds to the G-band, which is related to the order degree of sp carbon atoms and reflects the graphitization degree .…”

“…The peak at 1340 cm −1 corresponds to the Dband, and the peak intensity is related to the edge defects and disorder degree of the carbon sample. 19 The peak at 1570 cm −1 corresponds to the G-band, which is related to the order degree of sp 2 carbon atoms and reflects the graphitization degree. 28 From the Raman spectra of bare CFM, the intensity of peaks D and G is weak, and their full width at half-maximum (fwhm) is wide.…”

“…For this purpose, carbon fiber microelectrode (CFM) can be selected as the substrate of the work electrode to reduce the background current and improve the signal-to-noise ratio . Carbon nanotubes can be used to modify the electrode since carbon nanotubes and their derivatives have the advantages of large surface area, superior conductivity, remarkable mechanical properties, , and strong ability to resist fouling. , Cu 2 O nanoparticles (NPs) have been used in electrochemical catalysis due to their large surface area, good electrochemical activity, and the ability to facilitate electron transfer. In addition, there is a decarboxylative coupling reaction between IAA and the copper ion, which is beneficial to the electrochemical sensing of IAA .…”

Electronic State Modulation and Reaction Pathway Regulation on Necklace‐Like MnOx‐CeO2@Polypyrrole Hierarchical Cathode for Advanced and Flexible Li–CO2 Batteries

“…[33][34][35] The post-in-situ synthetic pathway provides a new approach for achieving continuous and nanoscaled contact between conductive agent and catalytic materials, which is expected to reduce the interface resistance with a binder-free structure. [36,37] The feasibility of in-situ polymerization of PPy nanowires on active materials for metal-gas batteries has not yet been explored. Meanwhile, the PPy nanofibers can physically assemble to form a flexible freestanding film, which bypasses the complicated preparation process of traditional cathodes.…”