Structurally-controlled FeNi LDH/CNTs electro-Fenton membrane for in-situ electro-generation and activation of hydroxyl radicals toward organic micropollutant treatment

Low-temperature pyrolysis enables FeNi3 nanoparticle implanted N-doped carbon nanosheets as an efficient bifunctional electrocatalyst for overall water splitting

“…The I D /I G ratio of 1.03 suggests more structure defects of the carbon, beneting the exposure of active sites. 39,57 The emerging band located between 500 and 700 cm −1 is related to the M-O bond, in line with the XPS analysis. 39 In addition, the specic surface area and pore structure of FeNi 3 /NCS were studied by N 2 adsorption and desorption experiments (Fig.…”

“…[33][34][35] FeNi-LDH has been veried to be a competitive alternative for the OER, but the HER performance is unfavorable, which is primarily caused by the intrinsic low conductivity and decient electrochemically active surface area. 36 Doping with other metal nanoparticles, 37,38 coupling with conductive supports, [39][40][41] and hybridizing with other functional compounds [42][43][44] are effective ways to boost the electrocatalytic activity of LDHs. For instance, Ma and coworkers have reported NiFe LDH modied Ag nanowires on Ni foam to improve the OER and HER activity.…”

Intelligent Chip-Controlled Smart Oxygen Electrodes for Constructing Rechargeable Zinc–Air Batteries with Excellent Energy Efficiency and Durability

“…Selected area electron diffraction (SAED) pattern displays that the composites have the (012) and (018) planes of FeNi-LDH and the (003) plane of graphitic carbon, which is consistent with the result of the PXRD pattern, Fourier transforms infrared (FT-IR), and Raman spectra (Figures b4, S7). − Compared with the I D / I G of PNCNF (0.95), the Fe x Ni y -LDH/PNCNF composites have higher I D / I G values (0.96–1.21), revealing the existence of structural defects in the composite (Figure S7b), which is beneficial for exposing more Ni active sites to enhance the catalytic activity. , All Fe x Ni y -LDH/PNCNF catalysts exhibit type-IV isotherms with a typical hysteresis loop. The presence of micropores, mesopores, and macropores provides a larger specific surface area and ion-exchange space for the catalytic reaction, thus accelerating the ion/electron mass transfer process of the OER process (Figure S8 and Table S2).…”

“…27 Selected area electron diffraction (SAED) pattern displays that the composites have the (012) and (018) planes of FeNi-LDH and the (003) plane of graphitic carbon, S7b), which is beneficial for exposing more Ni active sites to enhance the catalytic activity. 32,33 All Fe x Ni y -LDH/PNCNF catalysts exhibit type-IV isotherms with a typical hysteresis loop. The presence of micropores, mesopores, and macropores provides a larger specific surface area and ion-exchange space for the catalytic reaction, thus accelerating the ion/electron mass transfer process of the OER process (Figure S8 and Table S2).…”

Carbon nanomaterial-based membranes for water and wastewater treatment under electrochemical assistance

“…However, they can be effectively removed by nanocarbonaceous MF or UF membranes coupling with electro-adsorption, electrooxidation, electroreduction and/or electro-Fenton process. 24,[217][218][219][220][221][222][223][224][225] During the electrochemically assisted processes, the molecules are captured and/or decomposed quickly when they migrate toward or pass through the nanocarbonaceous membranes, achieving high permselectivity. 219,[226][227][228][229] Moreover, the convection in the membrane pore efficiently improves the mass transfer to promote the electrochemical reactions.…”