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Rational design of highly efficient noble‐metal‐unbound electrodes for hydrogen and oxygen production at increased current density is crucial for robust water‐splitting. A facile hydrothermal and room‐temperature aging method is presented, followed by chemical vapor deposition (CVD), to create a self‐sacrificed hybrid heterostructure electrocatalyst. This hybrid material, (Mn−(Co,Ni)2P/CoP/(N,S)−C),...
Two different nanostructures of two dissimilar highly‐potent active electrocatalysts, P‐dopped metallic‐(1T)‐Fe‐VSe2 (P,Fe‐1T‐VSe2) nanosheet and P‐dopped Fe‐CoSe2 (P,Fe‐CoSe2) nanorods are hybridized and integrated into a single heterostructure (P,Fe‐(VCo)Se2) on Ni‐foam for high‐performance water splitting (WS). The catalytic efficiency of VSe2 nanosheets is first enhanced by enriching metallic...
The development of trifunctional electrocatalyst for oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER) with deeply understanding the mechanism to enhance the electrochemical performance is still a challenging task. In this work, the distorted metastable hybrid‐phase induced 1T′/1T Co,PSnS2 nanosheets on carbon cloth (1T′/1T Co,PSnS2@CC) is prepared...
Rechargeable zinc‐air batteries (ZABs) are promising energy storage systems due to their low‐cost and safety. However, the working principle of ZABs is based on oxygen evolution reaction (OER) and oxygen reduction reaction (ORR), which display sluggish kinetic and low stability. Herein, this work proposes a novel method to design a heterogeneous CoP/CoO electrocatalyst on mesopore nanobox carbon/carbon...
The flexible electrochromic Zn‐ion battery (FE‐ZiB), a newly born energy‐storage technology having both electrochromic characteristics and energy‐storage capability in a single device, will be a promising technology for the future transparent wearable electronics. However, the current technology limits the fabrication of FE‐ZIB because the zinc (Zn) anode material is opaque and rigid. The development...
Atomic metal‐modulated heterostructures have been evidenced as an exciting solution to develop high‐performance multifunctional electrocatalyst toward water splitting. In this research, a catalyst of continuous cobalt‐cobalt oxide (Co‐CoO) lateral heterostructures implanted with well‐dispersed rhodium (Rh) atoms and shelled over conductive porous 1D copper (Cu) nano‐supports for hydrogen evolution...
Introducing defects and in situ topotactic transformation of the electrocatalysts generating heterostructures of mixed‐metal oxides(hydroxides) that are highly active for oxygen evolution reaction (OER) in tandem with metals of low hydrogen adsorption barrier for efficient hydrogen evolution reaction (HER) is urgently demanded for boosting the sluggish OER and HER kinetics in alkaline media. Ascertaining...
Highly flexible quasi solid‐state batteries are promising in next‐generation energy storage sectors due to their high energy density, power density, and low manufacturing cost. However, poor cycle life seriously limits their application in industrial sectors. Herein, a novel strategy is established to design the oxygenated cobalt vanadium selenide (O‐CoxV1‐xSe2) nanostructures for high‐performance...
Fabrication of hierarchical nanosheet arrays of 1T phase of transition‐metal dichalcogenides is indeed a critical task, but it holds immense potential for energy storage. A single‐step strategy is employed for the fabrication of stable 1T‐MnxMo1–xS2–ySey and MoFe2S4–zSez hierarchical nanosheet arrays on carbon cloth as positive and negative electrodes, respectively. The flexible asymmetric supercapacitor...
The development of hierarchical nanostructures with highly active and durable multifunctional catalysts has a new significance in the context of new energy technologies of water splitting and metal–air batteries. Herein, a strategy is demonstrated to construct a 3D hierarchical oxygenated cobalt molybdenum selenide (O‐Co1−xMoxSe2) series with attractive nanoarchitectures, which are fabricated by a...
The scalable and cost‐effective H2 fuel production via electrolysis demands an efficient earth‐abundant oxygen and hydrogen evolution reaction (OER, and HER, respectively) catalysts. In this work, for the first time, the synthesis of a sheet‐like Zn1‐xFex–oxyselenide and Zn1‐xFex–LDH on Ni‐foam is reported. The hydrothermally synthesized Zn1‐xFex–LDH/Ni‐foam is successfully converted into Zn1‐xFex...
Supercapacitors suffer from lack of energy density and impulse the energy density limit, so a new class of hybrid electrode materials with promising architectures is strongly desirable. Here, the rational design of a 3D hierarchical sandwich Co9S8/α‐MnS@N–C@MoS2 nanowire architecture is achieved during the hydrothermal sulphurization reaction by the conversion of binary mesoporous metal oxide core...
Herein, a new type of cobalt encapsulated nitrogen‐doped carbon (Co@NC) nanostructure employing ZnxCo1−x(C3H4N2) metal–organic framework (MOF) as precursor is developed, by a simple, ecofriendly, solvent‐free approach that utilizes a mechanochemical coordination self‐assembly strategy. Possible evolution of ZnxCo1−x(C3H4N2) MOF structures and their conversion to Co@NC nanostructures is established...
A nanohybrid based on porous and hollow interior structured LaNiO3 stabilized nitrogen and sulfur codoped graphene (LaNiO3/N,S‐Gr) is successfully synthesized for the first time. Such a nanohybrid as an electrocatalyst shows high catalytic activity for oxygen reduction reaction (ORR) in O2‐saturated 0.1 m KOH media. In addition, it demonstrates a comparable catalytic activity, longer working stability,...
Hierarchical nanostructure, high electrical conductivity, extraordinary specific surface area, and unique porous architecture are essential properties in energy storage and conversion studies. A new type of hierarchical 3D cobalt encapsulated Fe3O4 nanosphere is successfully developed on N‐graphene sheet (Co−Fe3O4 NS@NG) hybrid with unique nanostructure by simple, scalable, and efficient solvothermal...
Plasmonic nanostructures are widely studied and used because of their useful size, shape, composition and assembled structure‐based plasmonic properties. It is, however, highly challenging to precisely design, reproducibly synthesize and reliably utilize plasmonic nanostructures with enhanced optical properties. Here, we devise a facile synthetic method to generate Au surface roughness‐controlled...
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