LiCoPO 4 (LCP) as an effective peroxymonosulfate activator for degradation of diethyl phthalate in aqueous solution without controlling pH: Efficiency, stability and mechanism

Recycling the Cathode Scrap of Spent Lithium-Ion Batteries as an Easily Recoverable Peroxymonosulfate Catalyst with Enhanced Catalytic Performance

“…With each cycle, the amount of dissolved metal Mn and Li gradually decreased. The maximum Mn and Li contents in the first cycle were 0.482 and 0.807 mg/L, respectively, both of which are less than the comprehensive discharge standard of spent water in China (Mn = 2 mg/L) and the water discharge limit in an area in Australia (Li = 2.5 mg/L) . However, the Al ions from the partially reactive Al foil were not detected by ICP in the aqueous solution, indicating that a relative reaction occurred on the surface and internal part of the cathode scrap.…”

“…The maximum Mn and Li contents in the first cycle were 0.482 and 0.807 mg/L, respectively, both of which are less than the comprehensive discharge standard of spent water in China (Mn = 2 mg/L) and the water discharge limit in an area in Australia (Li = 2.5 mg/ L). 62 However, the Al ions from the partially reactive Al foil were not detected by ICP in the aqueous solution, indicating that a relative reaction occurred on the surface and internal part of the cathode scrap. These dissolved metal ions had a negligible influence on the catalytic reaction caused by the homogeneous catalysis of dissolved Mn due to low concentration.…”

Co3+‐Rich Na1.95CoP2O7 Phosphates as Efficient Bifunctional Catalysts for Oxygen Evolution and Reduction Reactions in Alkaline Solution

“…The P 2p peaks located at 133.10 eV of obtained catalysts can be identified as P 2p 1/2 , whereas another peak at 134.20 eV is assigned to P 2p 3/2 (Figure S5, Supporting Information) . The O 1s peaks of electrocatalysts are mainly located at 530.90 eV (Figure S6, Supporting Information), which are well indexed to the oxygen species in phosphates . Figure b shows the Co 2p 3/2 peaks of NCPO, NCPO2, NCPO5 and NCPO10 catalysts.…”

“…The P2 pp eaks located at 133.10eVo fo btained catalysts can be identified as P2 p 1/2 , whereas another peak at 134.20 eV is assignedt oP2 p 3/2 (Figure S5, SupportingInformation). [27] Figure 4b shows the Co 2p 3/2 peaks of NCPO, NCPO2, NCPO5a nd NCPO10 catalysts. [27] Figure 4b shows the Co 2p 3/2 peaks of NCPO, NCPO2, NCPO5a nd NCPO10 catalysts.…”

“…[26] The O1sp eaks of electrocatalysts are mainly located at 530.90 eV ( Figure S6, Supporting Information), which are well indexedt ot he oxygen speciesi n phosphates. [27] Figure 4b shows the Co 2p 3/2 peaks of NCPO, NCPO2, NCPO5a nd NCPO10 catalysts. Upon deconvolution, the Co spectrac ould be divided into peaks of Co 2 + located at 781.20 eV,C o 3 + located at 780.12 eV,a nd Co satellitesa t 785.50 eV.…”