Anti-perovskite metal carbides: A new family of promising electrocatalysts for oxygen reduction in alkaline solution

Enhanced cathodic activity by tantalum inclusion at B-site of La0.6Sr0.4CO0.4Fe0.6O3 based on structural property tailored via camphor-assisted solid-state reaction

“…All the catalysts were synthesized by using the CSSR method, and the comparison was made with the traditional solid-state reaction process to unravel the benefits of the CSSR approach. The procedure for the material preparation was invoked according to our previous reports with some modifications [24,25]. The LSCF was prepared by using a stoichiometric mixing ratio of SrCO In a typical synthesis procedure, the precursors were thoroughly mixed and infiltrated into camphor as pore formers, and the mixing ratio (precursors to camphor) was kept at 2 : 1 to avoid carbothermal reaction and the formation of carbide phases.…”

Anti-perovskite carbides Ca6CSe4and Sr6CSe4for photovoltaics with similar optoelectronic properties to MAPbI3

“…Moreover, it is noted that several anti-perovskite carbides, such as Mg 3 CNi, Co 3 CZn, Fe 3 CZn, Ni 3 CZn, and Ti 3 CAl, have been synthesized experimentally through the repeated sintering, self-propagating hightemperature synthesis, mechanical alloying method, conventional powder metallurgy, solid-state reaction, one-step thermal reduction, or in situ reaction/hot-pressing route. [53][54][55] These synthesis methods of carbides may provide insight into the synthesis of the predicted M 6 CCh 4 anti-perovskites.…”

“…Halide perovskites are commonly fabricated via feasible room-temperature spin-coating approaches, which are low-cost but lead to poor stability as well as heat resistance. 12,79 Compared with halide perovskites, most synthesis methods for anti-perovskite carbides require high temperature, [53][54][55] indicating their great potential on concentrator cells. Fig.…”

Hydrogel-Derived Co3ZnC/Co Nanoparticles with Heterojunctions Supported on N-Doped Porous Carbon and Carbon Nanotubes for the Highly Efficient Oxygen Reduction Reaction in Zn–Air Batteries

“…13−15 The bimetallic carbide Co 3 ZnC belongs to these compounds possessing appreciable ORR performance in an alkaline medium. 16 enhanced catalytic activity toward the ORR. 17,18 However, in 0.1 M KOH, the Co-based catalysts with the Co 3 ZnC/Co heterojunctions still display the ORR half-wave potentials (E 1/2 , vs reversible hydrogen electrode (RHE)) more negative than 0.83 V, 17,18 inferior than other Co−N−C materials 2,19 and hence further modification of Co 3 ZnC/Co-containing catalysts is necessary for the requirement of next-generation energy devices.…”

“…In addition to the porous structures, M–N x moieties along with compound or metallic NPs are also crucial for ORR catalysis, and several literature studies have confirmed the synergistic effect among the NPs and M–N x moieties. − The bimetallic carbide Co 3 ZnC belongs to these compounds possessing appreciable ORR performance in an alkaline medium . It promotes electron transfer from Co NPs to Co 3 ZnC/Co heterojunctions, thus contributing to the enhanced catalytic activity toward the ORR. , However, in 0.1 M KOH, the Co-based catalysts with the Co 3 ZnC/Co heterojunctions still display the ORR half-wave potentials ( E 1/2 , vs reversible hydrogen electrode (RHE)) more negative than 0.83 V, , inferior than other Co–N–C materials , and hence further modification of Co 3 ZnC/Co-containing catalysts is necessary for the requirement of next-generation energy devices.…”