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Constructing cost‐efficient and robust bifunctional electrocatalysts for both neutral and alkaline water splitting is highly desired, but still affords a great challenge, due to sluggish hydrogen/oxygen evolution reaction (HER/OER) kinetics. Herein, an in situ integration engineering strategy of oxygen‐vacancy and core–shell heterojunction to fabricate an anemone‐like CoP@CoOOH core–shell heterojunction...
Suitable anode materials with high capacity and long cycling stability, especially capability at high current densities, are urgently needed to advance the development of potassium ion batteries (PIBs) and sodium ion batteries (SIBs). Herein, a porous Ni‐doped FeSe2/Fe3Se4 heterojunction encapsulated in Se‐doped carbon (NF11S/C) is designed through selenization of MOFs precursor. The porous composite...
Previous studies on syntheses of metal‐organic frameworks (MOFs) for photocatalytic CO2 reduction are mainly focused on the exquisite control over the net topology and the functionality of metal clusters/organic building blocks. This contribution demonstrates that the rational design of MOF‐based photocatalyst can be further extended to the hierarchical structure at micrometer scales well beyond the...
The exploitation of effective strategies to accelerate the Na+ diffusion kinetics and improve the structural stability in the electrode is extremely important for the development of high efficientcy sodium‐ion batteries. Herein, Se vacancies and heterostructure engineering are utilized to improve the Na+‐storage performance of transition metal selenides anode prepared through a facile two‐in‐one route...
Ammonia, the second most‐produced chemical, is widely used in agricultural and industrial applications. However, traditional industrial ammonia production dominated by the Haber–Bosch process presents huge resource and environment issues due to the massive energy consumption and CO2 emission. The newly emerged nitrogen fixation technology, photocatalytic N2 reduction reaction (p‐NRR), uses clean solar...
Development of a reliable doping method for 2D materials is a key issue to adopt the materials in the future microelectronic circuits and to replace the silicon, keeping the Moore's law toward the sub‐10 nm channel length. Especially hole doping is highly required, because most of the transition metal dichalcogenides (TMDC) among the 2D materials are electron‐doped by sulfur vacancies in their atomic...
Bias‐Free Water Splitting
In article number 2204495, Xin Tong, Lianzhou Wang, Zhiming M. Wang, and co‐workers develop a quantum dots (QDs)‐based photoelectrochemical (PEC) device comprised of tandem Zn‐doped CuInS2 QDs‐decorated metal oxide electrodes (BiVO4 and Cu2O) for bias‐free solar water splitting. Both the ligands capped on QDs and QDs‐electrode heterojunctions are rationally engineered to...
A cost‐effective and high‐efficiency photoelectrochemical (PEC) water splitting system based on colloidal quantum dots (QDs) represents a potential solar‐to‐hydrogen (STH) conversion technology to achieve future carbon neutrality. Herein, a self‐biased PEC cell consisting of BiVO4 photoanode and Cu2O photocathode both decorated with Zn‐doped CuInS2 (ZCIS) QDs is successfully fabricated. The intrinsic...
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