Faceted Branched Nickel Nanoparticles with Tunable Branch Length for High‐Activity Electrocatalytic Oxidation of Biomass

Abstract

Controlling the formation of nanosized branched nanoparticles with high uniformity is one of the major challenges in synthesizing nanocatalysts with improved activity and stability. Using a cubic‐core hexagonal‐branch mechanism to form highly monodisperse branched nanoparticles, we vary the length of the nickel branches. Lengthening the nickel branches, with their high coverage of active facets, is shown to improve activity for electrocatalytic oxidation of 5‐hydroxymethylfurfural (HMF), as an example for biomass conversion.

Rational incorporation of defects within metal–organic frameworks generates highly active electrocatalytic sites

“…37,57 Similarly, high conversion rates and faradaic efficiency values (both above 95%) have been noted for transition metal based catalysts, but only in highly alkaline conditions (0.1 to 1.0 M KOH). [54][55][56][58][59][60][61][62][63][64] As discussed below, we believe that the key to the high performance of this system in weakly basic conditions lies in the unique active site conguration.…”

Advances in Electrochemical Modification Strategies of 5‐Hydroxymethylfurfural

“…Near quantitative yield was obtained for the electrochemical production of FDCA. Faceted branched nickel nanoparticles have also been shown to electrochemically oxidize HMF [47] . Wang and co‐workers have demonstrated that P‐dopped nickel borides (NiB x −P y ) can be efficient electrocatalysts for the valorization of HMF [48] .…”

Robust selenium-doped carbon nitride nanotubes for selective electrocatalytic oxidation of furan compounds to maleic acid

“…At ambient conditions, furfural could be selectively converted into MA with a yield of 84.2% in 0.5 M KHCO 3 aqueous solution, which was much higher than those in the reported typical heterogeneous systems (Table S1 † ). Notably, when the furan compounds became furoic acid and 2,5-furandicarboxylic acid, which could be easily achieved from electrocatalytic oxidation of renewable furfural and 5-hydroxymethylfurfural, 12 very high yields (>90%) of MA could be obtained, which has never been realized previously. The high selectivity at ambient conditions and the wide applicability confirmed the great potential of the C 3.0 N-Se 0.03 on the electrocatalytic oxidation of furan compounds to synthesize MA.…”