Ternary FeCoNi alloy nanoparticles embedded in N-doped carbon nanotubes for efficient oxygen evolution reaction electrocatalysis

Fe–Co–Ni trimetallic organic framework chrysanthemum-like nanoflowers: efficient and durable oxygen evolution electrocatalysts

“…Finally, the OER performance of the FCN-BTC MOF was compared with those of recently reported top-ranked MOF-based (Table S2†) OER electrocatalysts (in 1 M KOH) with respect to key electrocatalytic performance parameters, including the specific current density and Tafel slope. 14,59–65 Obviously, the FCN-BTC MOF electrode is superior to most OER electrocatalysts in terms of the overpotential and Tafel slope at specific current densities.…”

Catalyst overcoating engineering towards high-performance electrocatalysis

“…Similar to polymers, organic compounds especially those with heteroatom-containing groups such as -NH 2 and -NHcan coordinate with metal ions to form metal-coordinating organic complexes, making them promising precursors for the carbon nanoshell and the support of metal NPs. [104][105][106][107][108] For example, a one-step high pressure pyrolysis of ferrocene and cyanamide at 700 1C was reported by Hu et al 104 to prepare Fe 3 C/C hollow spheres overcoated with 4-9 layers of graphitic carbon. A negligible amount of nitrogen and Fe metal was observed on the surface of Fe 3 C/C, indicating that it was another mechanism rather than that catalyzed by Fe-N x moieties that accounted for the high ORR activity.…”

“…Analogously, trimetallic FeCoNi alloys overcoated with N-doped carbon nanotubes were generated following the protocol of direct pyrolysis of dicyandiamide-metal nitrate complexes at 800 1C in an inert atmosphere. 106 Such a versatile strategy has made it possible to elaborately select platform compounds such as the phosphorus (P) moietycoordinated counterparts to produce metal phosphides with surface overcoating of carbon nanoshells. [108][109][110][111] For example, Pu et al 108 prepared a N,P-codoped carbon-encapsulated ruthenium diphosphide catalyst (RuP 2 @NPC) by pyrolysis of phytic acid (PA) cross-linked Ru complexes and melamine at 900 1C.…”

ZIF‐8 MOF Encapsulated Co‐porphyrin, an Efficient Electrocatalyst for Water Oxidation in a Wide pH Range: Works Better at Neutral pH

“…Thus, we were able to encapsulate CoTMPP molecule inside ZIF‐8 MOF and prepare an efficient catalyst that can perform electrocatalytic OER in a wide pH range and also can perform electrocatalytic ORR in neutral pH (Section S10 in the Supporting Information). Although, in last few years, handful of highly efficient OER catalysts have been reported by researchers, [58–64] the catalytic OER efficiency of CTMZ‐8 can be compared with the best MOF based OER catalysts that can perform OER in neutral pH (Section S10 in the Supporting Information).…”