Isolation of Metalloid Boron Atoms in Intermetallic Carbide Boosts the Catalytic Selectivity for Electrocatalytic N₂ Fixation

Abstract

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Phase transformations in the nickel phosphide system induced by transition-metal doping and their electro-catalytic study

“…The durability and long-term stability of an electrode are crucial factors necessary for the practical use of HER technologies. 56 We, therefore, investigated the long-term stability of our nickel phosphide electrodes by measuring their polarization curves which are given in Fig. 11.…”

Lattice Strained B‐Doped Ni Nanoparticles for Efficient Electrochemical H2O2 Synthesis

“…The N 1s spectrum of Ni 4 -B 1 @BNC is divided into four peaks at 397.9, 398.8, 400.6, and 401.7 eV, ascribed to NB, pyridinic-N (N6), pyrrolic-N (N5), and quaternary-N, respectively. [30][31][32] Ni 4 -B 1 @BNC possesses the highest N contents in N-B (19.7 at%) and N6 (30.0 at%) species among the five different catalysts, compared to Ni 1 -B 2 @BNC (17.5 at%, 20.3 at%), Ni 7 -B 1 @BNC (14.2 at%, 26.5 at%), Ni@NC (0 at%, 20.0 at%), and BNC (19.4 at%, 16.3 at%). The Ni 4 -B 1 @BNC with optimized strain intensity among the different catalysts is favorable for the formation of the most stable hexagonal boron nitride, which has proved a higher activity and selectivity toward the oxygen reduction to H 2 O 2 .…”

An electrochemical modification strategy to fabricate NiFeCuPt polymetallic carbon matrices on nickel foam as stable electrocatalysts for water splitting

“… 6 In particular, the OER remains a bottleneck for EWS owing to its sluggish kinetics. 7 Although attempts have been made to use earth abundant transition metals 8 and their corresponding compounds 9 as electrocatalysts to reduce cost, 10 their poor stability, excessive load and high overpotential partially meet the requirements of practical applications. 11 On the other hand, noble metals such as platinum (Pt), 12 iridium (Ir), 13 ruthenium (Ru) 14 and their corresponding oxides 15 are used as benchmark electrocatalysts towards EWS, given their high efficiency and stability.…”