RESEARCH / A0028
A carbon-reinforced nickel electrode for solar-driven, robust, and ampere-level seawater electrolysis
Read the original paper · 10.1016/j.matt.2026.102953 ↗
Source figures may contain other techniques and soft X-ray spectra. C, N and O measurements are outside our current hard-XAFS testing range.
Figure 3. Theoretical studies of C-Ni charge transfer and the repelling corrosive Cl−effect in simulated seawater (A and B) In situ Raman spectra of Ni-C ACE (A) and NF (B) at different applied potentials (ranging from 1.224 to 1.624 V). The yellow shaded area represents the characteristic Ni–O peak in NiOOH. (C) Ni k-edge XANES spectra. (D) Oxidation state analysis of Ni in Ni-C ACE_post (NiIII/NiIV). (E) Ion chromatography quantified Cl−adsorption in Ni-C ACE and NF. (F) Charge density difference distribution at the Ni-C ACE interface in the simulated working state (yellow and cyan represent charge accumulation and dissi pation, respectively). (G) Comparison of the adsorption energies of Ni-C ACE and NF for Cl−and OH−. (H) Gibbs free energy of the OER process between reaction intermediates and Ni under Ni3+ and Nihv in NF and Ni-C ACE, respectively.