Potential-induced reversible uptake/release of perchlorate from wastewater by polypyrrole@CoNi-layered double hydroxide modified electrode with proton-ligand effect

BiOI with Inherent Photo/Electric Biactivity Recovery I– by Novel Photoassisted Electrochemically Switched Ion Exchange Technology

“…Figure 2b shows the high-resolution XPS spectrum of Bi 4f; for BiOI, two peaks at 159.9 and 165.2 eV were consistent with Bi 4f 7/2 and Bi 4f 5/2 , respectively, representing the characteristics of Bi 3+ . 27 For the I − -vacancy BiOI, the peaks of Bi 4f 7/2 and Bi 4f 5/2 were located at 159.6 and 164.8 eV, the binding energy shifted to the right by 0.4 eV, which may be due to the release of I − caused by the decrease in the electron density. 50 However, after the adsorption of I − , the peaks of Bi 4f returned to the position of BiOI.…”

“…At the same time, the film electrode does not need to be chemically regenerated, effectively avoiding secondary pollution . Currently, this technology has been applied to the selective separation of many ions, such as Li + , Cs + , Pb 2+ , Ni 2+ , Y 3+ , ClO 4 – , F – , Cl – , and I – . For example, Ji et al synthesized PPy/BiOCl EIXM to achieve the recovery of Cl – ; Luo et al applied BiOI to extract I – .…”

Simplified fast synthesis of strong-coupling composite supercapacitor materials by one-step bipolar pulse electrodeposition

“…39 During the synthesis of NiCoS, the feedstock of PPy may be lled by diffusion, and subsequently during the synthesis of PPy, the feedstock of NiCoS can be supplied by diffusion. 26,27 Aer 80 cycles of bipolar pulse electrodeposition for a total of 2400 seconds, the nickel-cobalt sulde nanoower with a large electrode-electrolyte contact area and suitable ion-diffusion channel and the package of PPy with the appropriate thickness are successfully deposited on the Ni foam (section morphology diagram in Fig. 1a).…”

“…UPED has the off-time and the raw materials consumed near the electrode can be replenished by diffusion during the off-time, which is benecial to improve the overpotential and obtain a smaller morphology. [26][27][28] Inspired by UPED, other materials may be deposited during the diffusion of raw materials by extending the pulse period, and composite electrode materials can be prepared by bipolar pulse electrodeposition in one step.…”

Electrodeposition of Ti-Doped Hierarchically Mesoporous Silica Microspheres/Tungsten Oxide Nanocrystallines Hybrid Films and Their Electrochromic Performance

“…It is recognized that the mechanism of the dynamic which changed optical properties of the electrochromic materials is mainly attributed to the electrochemically induced oxidation-reduction reaction [10,11]. Generally, materials containing variable valence elements can be used as electrochromic materials, including conducting polymers [12][13][14], organic small molecular [15,16] and inorganic metal oxides [17][18][19][20].…”