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VO2 material, as a promising intercalation host, is widely investigated not only in aqueous lithium‐ion batteries, but also in aqueous zinc‐ion batteries (AZIBs) owing to its stable tunnel‐like framework and multivalence of vanadium. Different from lithium‐ion storage, VO2 can provide higher capacity when storing zinc ions, even exceeding its theoretical capacity (323 mAh g−1), but the specific reason...
To overcome the low efficiency of overall water splitting, highly effective and stable catalysts are in urgent need, especially for the anode oxygen evolution reaction (OER). In this case, nickel selenides appear as good candidates to catalyze OER and other substitutable anodic reactions due to their high electronic conductivity and easily tunable electronic structure to meet the optimized adsorption...
The synergistic effect of hollow cavities and multiple hetero‐interfaces displays huge advantages in achieving lightweight and high‐efficient electromagnetic wave absorption, but still confronts huge challenges. Herein, hierarchical Co2P/CoS2@C@MoS2 composites via the self‐sacrificed strategy and a subsequent hydrothermal method have been successfully synthesized. Specifically, ZIF‐67 cores first...
Infinite‐Layer Nickelates
In article number 2304146, Kui‐juan Jin and co‐workers report the novel photoinduced insulator‐metal and superconducting‐like phase transitions in the infinite‐layer NdNiO2 film, bringing forward a unique way to manipulate the electronic correlation with photons and trigger intriguing quantum phase transitions.
The quantum phase transition caused by regulating the electronic correlation in strongly correlated quantum materials has been a research hotspot in condensed matter science. Herein, a photon‐induced quantum phase transition from the Kondo‐Mott insulating state to the low temperature metallic one accompanying with the magnetoresistance changing from negative to positive in the infinite‐layer NdNiO...
In the lithium‐dominated era, rechargeable Zn batteries are emerging as a competitive alternative. However, the sluggish kinetics of ion diffusion and structural destruction of cathode materials have thus far hampered the realization of future large‐scale energy storage. Herein, an in situ self‐transformation approach is reported to electrochemically boost the activity of a high‐temperature, argon‐treated...
2D molybdenum ditelluride (MoTe2) with polymorphism is a promising candidate to developing phase‐change memory, high‐performance transistors and spintronic devices. The phase‐transition‐assisted chemical vapor deposition (CVD) process has been used to prepare large‐scale 2H‐MoTe2 with large grain size and low density of grain boundary. However, because of the lack of precise control of the growth...
In article number 1905311, Jun Yang, Yongyao Xia, and co‐workers design an O3‐type layered Ni‐rich oxide cathode through an electrochemical Li+/Na+ exchange strategy. Benefiting from its high‐active and open layered framework for fast ion transport, the Na‐intercalated cathode demonstrates a high reversible capacity and superior rate capability, which has potential applications in the field of large‐scale...
Inspired by its high‐active and open layered framework for fast Li+ extraction/insertion reactions, layered Ni‐rich oxide is proposed as an outstanding Na‐intercalated cathode for high‐performance sodium‐ion batteries. An O3‐type Na0.75Ni0.82Co0.12Mn0.06O2 is achieved through a facile electrochemical ion‐exchange strategy in which Li+ ions are first extracted from the LiNi0.82Co0.12Mn0.06O2 cathode...
Biological liquid crystals, a rich set of soft materials with rod‐like structures widely existing in nature, possess typical lyotropic liquid crystalline phase properties both in vitro (e.g., cellulose, peptides, and protein assemblies) and in vivo (e.g., cellular lipid membrane, packed DNA in bacteria, and aligned fibroblasts). Given the ability to undergo phase transition in response to various...
Nonuniform and highly localized Li dendrites are known to cause deleterious and, in many cases, catastrophic effects on the performance of rechargeable Li batteries. However, the mechanisms of cathode failures upon contact with Li metal are far from clear. In this study, using in situ transmission electron microscopy, the interaction of Li metal with well‐defined, epitaxial thin films of LiCoO2, the...
In article number 1803108, Yingge Du and co‐workers directly visualize the interaction of Li dendrites with well‐defined epitaxial LiCoO2 thin films at the atomic scale using in situ transmission electron microscopy. Li atoms are shown to selectively attack the LiCoO2 crystal along the [001] direction, generating a large number of grain boundaries and anti‐phase boundaries that are rich in Li2O at...
Tungsten ditelluride (WTe2) is a semimetal with orthorhombic Td phase that possesses some unique properties such as Weyl semimetal states, pressure‐induced superconductivity, and giant magnetoresistance. Here, the high‐pressure properties of WTe2 single crystals are investigated by Raman microspectroscopy and ab initio calculations. WTe2 shows strong plane‐parallel/plane‐vertical vibrational anisotropy,...
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