Phosphating-induced charge transfer on CoO/CoP interface for alkaline H2 evolution

Effectively enhanced activity for overall water splitting through interfacially strong P–Co–O tetrahedral coupling interaction on CoO/CoP heterostructure hollow-nanoneedles

“…50–53 It can be seen from the comparison that a peak with a small negative shift is found in CoO/CoP–NC compared to that in CoP–NC and CoO–NC, which is mainly due to the introduction of P atoms changing the bond energy of Co–O and the electron transfer from P to O atoms. 52–54 Fig. 3e shows the characteristic peaks in the high-resolution C 1s spectra of CoO/CoP–NC, CoP–NC, and CoO–NC, which were attributed to C–C/CC, C–O, and C–N at approximately 284.01, 285.80, and 288.59 eV, respectively.…”

Designing a Built-In Electric Field for Efficient Energy Electrocatalysis

“…Although great endeavors have been made to develop high-performance metal catalysts, the sluggish kinetics still remains a huge challenge for water splitting, especially in the OER process. , In view of the multiple advantages of heterointerface engineering in electrocatalysis, Xu et al built core–shell CuO@CoS x nanowire arrays through in situ oxidative etching and chemical bath deposition. After situ anodic oxidation, a core–branch CuO@CoOOH/CF p–n heterojunction was formed.…”

Low-temperature resistant gel polymer electrolytes for zinc–air batteries

“…The large numbers of active H 2 O molecules at the electrolyte/anode interface are easily decomposed because the equilibrium potential of H 2 O/H 2 is higher than that of Zn 2+ /Zn, leading to the generation of zinc dendrites and the occurrence of various side reactions (hydrogen evolution reaction and corrosion). 83,84 The addition of organic solvent molecules in place of active water to modulate the solvation conformation around Zn 2+ to [Zn(H 2 O) x ] 2+ ( x < 6) can effectively reduce the solvation energy, which inhibits dendrites/side reactions and increases the reversibility of the Zn ions. 85 In situ optical visualization revealed that the zinc/electrolyte interface with the addition of DMSO to liquid electrolyte remained smooth after charge/discharge cycles, while the interface without DMSO was uneven (photos of (i) and (ii) in Fig.…”