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Bi2Te3‐based alloys are the benchmark for commercial thermoelectric (TE) materials, the widespread demand for low‐grade waste heat recovery and solid‐state refrigeration makes it imperative to enhance the figure‐of‐merits. In this study, high‐performance Bi0.5Sb1.5Te3 (BST) is realized by incorporating Cu2GeSe3 and Se. Concretely, the diffusion of Cu and Ge atoms optimizes the hole concentration and...
Amination of aryl chlorides by metallaphotocatalysis is highly desired but remains practically challenging. Meanwhile, relying on soluble noble‐metal photocatalysts suffers from resource scarcity and structural instability which limit their practical application. Here in, a highly crystalline acetylene‐based hydrazone‐linked covalent organic framewok‐1 (AC‐COF‐1) is reported that enables metallaphotocatalytic...
Electrochemical nitrogen reduction reaction (NRR) to ammonia (NH3) using renewable electricity provides a promising approach towards carbon neutral. What's more, it has been regarded as the most promising alternative to the traditional Haber‐Bosch route in current context of developing sustainable technologies. The development of a class of highly efficient electrocatalysts with high selectivity and...
Insufficient stability of current carbon supported Pt and Pt alloy catalysts is a significant barrier for proton‐exchange membrane fuel cells (PEMFCs). As a primary degradation cause to trigger Pt nanoparticle migration, dissolution, and aggregation, carbon corrosion remains a significant challenge. Compared with enhancing Pt and PtM alloy particle stability, improving support stability is rather...
The carbon‐supported single metal site catalysts have great potential for electrochemical CO2 reduction due to their flexibility to regulate metal centers, coordination environments, and local structures for enhancing catalytic activity and selectivity. Yi Mei, Gang Wu, and co‐workers report that besides the high efficiency of CO2 to CO conversion, single metal sites could provide a synergy to design...
The electrochemical CO2 reduction reaction (CO2RR) is a promising strategy to achieve electrical‐to‐chemical energy storage while closing the global carbon cycle. The carbon‐supported single‐atom catalysts (SACs) have great potential for electrochemical CO2RR due to their high efficiency and low cost. The metal centers’ performance is related to the local coordination environment and the long‐range...
Ultraviolet‐visible‐near infrared (UV‐Vis‐NIR) broadband detection is important for image sensing, communication, and environmental monitoring, yet remains as a challenge in achieving high external quantum efficiency (EQE) in the broad spectrum range. Herein, sensitive broadband integrated photodetectors (PDs) with high EQE levels are reported. The organic bulk‐heterojunction (OBHJ) layer, based on...
Vertically oriented highly crystalline 2D layered (BA)2(MA)n−1PbnI3n+1 (BA = CH3(CH2)3NH3, MA = CH3NH3, n = 3, 4) perovskite thin‐films are fabricated with the aid of ammonium thiocyanate (NH4SCN) additive through one‐step spin‐coating process. The humidity‐stability of the film is certified by the almost unchanged X‐ray diffraction patterns after exposed to humid atmosphere (Hr = 55 ± 5%) for 40...
In article number 1601710, W.‐G. Wu and co‐workers present plasmonic nanopin‐metasurfaces that are capable of producing a structural color appearance in reflection mode. Benefiting from the strong optical field confinement of plasmonic nanopin‐cavity resonators, these metasurfaces functionalized with biomolecules can operate as highly sensitive optical colorimetric sensing devices.
In view of the toxic potential of a bioweapon threat, rapid visual recognition and sensing of ricin has been of considerable interest while remaining a challenging task up to date. In this study, a gold nanopin‐based colorimetric sensor is developed realizing a multicolor variation for ricin qualitative recognition and analysis. It is revealed that such plasmonic metasurfaces based on nanopin‐cavity...
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