Developing bifunctional electrocatalysts for oxygen evolution reaction (OER) and hydrogen (HER) toward overall water splitting with high efficiency robust durability is highly desirable but very challenging. Herein, we report a efficient electrocatalyst based on Co@Ir core–shell nanoparticles encapsulated in nitrogen-doped porous carbon derived from metal–organic frameworks. The series of Co@Ir/NC-x samples were prepared through galvanic replacement IrCl3 Co/NC, which was obtained by...

Abstract Structure engineering has proven to be an effective strategy for improving the catalytic performance and reducing cost of ruthenium oxide‐based catalysts toward oxygen evolution reactions (OER). Herein, a polyhedron‐shaped yolk‐shell structure composed zinc‐cobalt‐ruthenium ternary metal alloy oxide (ZnCo‐RuO 2 /C) is prepared, by taking advantage Kirkendall effect. The frame ensembled nanoparticles are 116.9 ± 25.9 nm 3.1 0.7 in diameter, respectively. porous ZnCo‐RuO /C exposes...

Developing Earth-abundant, highly efficient, and anti-corrosion electrocatalysts to boost the oxygen evolution reaction (OER), reduction (ORR), hydrogen (HER) for Zn–air battery (ZAB) overall water splitting is imperative. In this study, a novel process starting with Cu2O cubes was developed fabricate hollow NixCo1−xSe nanocages as trifunctional OER, ORR, HER reasonable formation mechanism proposed. The Ni0.2Co0.8Se exhibited higher OER activity than its counterparts low overpotential of 280...

The recognition of the solid electrolyte interface (SEI) between electrode materials and is limiting selection materials, electrolytes, further electrochemical performance batteries. Herein, we report ZnSe@C core–shell nanocomposites derived from ZIF-8 as anode lithium-ion batteries, performances, SEI films formed on in both ether carbonate electrolytes. It found that delivers a reversible capacity 617.1 mA h·g–1 after 800 cycles at 1 A·g–1 electrolyte, much higher than electrolyte. Both ex...

A facile strategy is developed to create a MIL-88A/Ni(OH)₂ heterostructure, where the interfacial charge transfer significantly boosted OER performance.

Anisotropic mesoporous carbon (AMC) nanoparticles with asymmetric external morphologies, topological internal structure, and superior performance of species are attracting great attention because their seductive features differentiating them from symmetric nanoparticles. However, a bewildering challenge but crucial desire remains to endow flexibly tunable morphology pore structure. Herein, dual/triple-templating evolved emulsion strategy for fabrication AMC distinctive defined structure by...

Monoclinic ferrous tungstate (FeWO4) microcrystals with hierarchical nano/microstructures have been selectively synthesized via a facile hydrothermal process in the presence of ethylenediamine tetraacetic acid disodium salt (Na2EDTA) and hexamethylenetetramine (HMT). HMT played triple roles as reducing agent, alkaline source, crystal growth modifier, while Na2EDTA served chelating reagent structure-directing agent. The appropriate conditions for synthesis multilayer flower-like FeWO4 were...

Developing high-performance catalysts for oxygen evolution reaction (OER) is critical the widespread applications of clean and sustainable energy through electrochemical devices such as zinc-air batteries (photo)electrochemical water splitting. Constructing heterostructure vacancies have demonstrated great promises to boost OER performance. Herein, we report a facile strategy fabricate hetero-structured NiFe2 O4 /Ni3 S4 nanorods, where can be derived from Fe-based metal-organic frameworks...

The hydroboration of alkenes, alkynes, imines, and carbodiimides using the anionic 1-H-boratabenzene ligand bound to rare-earth (RE = Y, Lu), transition (Zr Rh), main-group (Li) metals is reported. This metal ion dependent; in case complexes, reactivity follows trend RE > Zr Rh. Hydroboration with complexes works well for a range unsaturated substrates, including 1-hexene, allyl propyl ether, 3-hexyne, benzylidene-n-propylamine, N,N′-diisopropylcarbodiimide, thus generating series new...

Abstract Assessing the homogeneity of two random vectors is a fundamental task in statistical inference. In this work, we introduce weighted multivariate Cramér‐von Mises type metric that transforms each variable through marginal mixture distribution function and integrates squared difference probability functions these transformed variables. Notably, our exhibits scale invariance, rendering it robust against outliers heterogeneity. The expression for straightforward possesses closed‐form...

Cu2O/TiO2 binary composite has been fabricated through a simple hydrothermal self-assembly and calcination process. The formation of heterojunction between two materials facilitates the separation charge carriers andpromote charge...

Abstract The successful application of gallium trichloride as a catalyst for the intermolecular hydroamination alkynes with aromatic amines is reported. reaction effective many aniline derivatives and shows exclusive selectivity Markovnikov products. mechanism transformation was investigated by DFT calculations plausible pathway proposed.

Solidified polymer nanospheres and the corresponding mesoporous carbon incorporated with ultra-fine Fe₃O₄nanocrystals were fabricated by a one-pot aqueous route assisted iron ions.

Nano cobalt oxide particles supported on ordered mesoporous carbon CMK-3 (CMK: material from Korea) were prepared by a hydrothermal synthesis method.

N-doped mesoporous carbon nanospheres (NMCNs) with tunable particle size, pore surface roughness, and inner cavity are extremely important for the future development of new carriers nanoencapsulation, high-performance giant molecule transport, cell uptake. However, constructing such a multifunctional material via simple method still remains great challenge. Herein, controlled growth technology was developed first time to synthesize NMCNs based on initial reaction temperature (IRT) solution...

Under ambient conditions, discrete half-sandwich rare-earth (RE) dialkyls, [η5-(1,3-(SiMe3)2C9H5)]]RE(CH2SiMe3)2(THF) (RE = Sc, Y, Dy, Lu), catalyze rapid and stereoselective coordination polymerization of β-methyl-α-methylene-γ-butyrolactone (βMMBL), a conjugated polar olefin member the naturally occurring or biomass-derived methylene butyrolactone family. Within present RE series, complex largest ion (Dy3+) exhibits highest activity, achieving high turnover frequency 390 min–1, also...