CoNiCuMgZn high entropy alloy nanoparticles embedded onto graphene sheets via anchoring and alloying strategy as efficient electrocatalysts for hydrogen evolution reaction

Evaluation of Entropy‐Stabilized (Mg0.2Co0.2Ni0.2Cu0.2Zn0.2)O Oxides Produced via Solvothermal Method or Electrospinning as Anodes in Lithium‐Ion Batteries

“…The ESM family includes alloys, [ 1,2 ] oxides, [ 9 ] and other composites, [ 10–15 ] which exhibit a variety of structures (rock‐salt, spinel, perovskite, fluorite…) and are endowed with enhanced properties that make them very promising candidates for a very wide range of applications, spanning from catalysis [ 16–24 ] to energy conversion and storage. [ 25–38 ]…”

“…Long-range ordering can be minimized by mixing isostructural components or elements having a similar charge. [5] The ESM family includes alloys, [1,2] oxides, [9] and other composites, [10][11][12][13][14][15] which exhibit a variety of structures (rock-salt, spinel, perovskite, fluorite…) and are endowed with enhanced properties that make them very promising candidates for a very wide range of applications, spanning from catalysis [16][17][18][19][20][21][22][23][24] to energy conversion and storage. [25][26][27][28][29][30][31][32][33][34][35][36][37][38] Rock-salt (Mg 0.2 Co 0.2 Ni 0.2 Cu 0.2 Zn 0.2 )O was the first singlephase multicomponent oxide successfully synthesized, in 2015, via solid-state reaction from an equimolar mixture of MgO, CoO, NiO, CuO, and ZnO.…”

CoFeNiMnZnB as a High-Entropy Metal Boride to Boost the Oxygen Evolution Reaction

“…This large surface area and porosity offer a large number of potentially electroactive surface sites and facilitate the transport rate of reactants and reaction products. 35 As observed by scanning electron microscopy (SEM), the CoFeNiMnZnB sample consists of porous aggregates of particles with sizes around 50 nm (Figures 2a, S1a−c and S2a−c). The CoFeNiMnZnB architecture was analyzed in more detail by transmission electron microscopy (TEM).…”

“…The Brunauer–Emmett–Teller (BET) surface area and the average pore size of CoFeNiMnZnB are 61.4 m 2 g –1 and 21.2 nm, respectively (Figures d and S3). This large surface area and porosity offer a large number of potentially electroactive surface sites and facilitate the transport rate of reactants and reaction products …”

Multiphase PdCu nanoparticles with improved C1 selectivity in ethanol oxidation

“…47,48 In addition the Cu element is also present in both Cu 0 and Cu 2+ valence states. [49][50][51] Fig. 2b shows the XPS of Pd 3d at five calcination temperatures, from which it can be seen that compared to the peak positions of Pd 3d 3/2 and Pd 3d 5/2 for the PdCu/CNT-200 (fcc) and PdCu/CNT-600 (bcc) catalysts with a single crystalline phase, the peaks of PdCu/CNT-300, PdCu/CNT-400, and PdCu/ CNT-500 catalysts corresponding to Pd 3d 3/2 and Pd 3d 5/2 peaks all show different degrees of slight positive shifts, which cause changes in the electronic structure.…”