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Synthesis of upconversion nanoparticles (UCNPs)‐metal halide perovskites (MHPs) heterostructure is garnered immense attentions due to their unparalleled photophysical properties. However, the obvious difference in their structural forms makes it a huge challenge. Herein, hexagonal β‐NaYF4 and hexagonal Cs4PbBr6 are filtrated to construct the UCNP/MHP heterostructural luminescent material. The similarity...
Electrocatalysts with high activity and durability for acidic oxygen evolution reaction (OER) play a crucial role in achieving cost‐effective hydrogen production via proton exchange membrane water electrolysis. A novel electrocatalyst, Te‐doped RuO2 (Te–RuO2) nanotubes, synthesized using a template‐directed process, which significantly enhances the OER performance in acidic media is reported. The...
The clinical patency of small‐diameter vascular grafts (SDVGs) (ID < 6 mm) is limited, with the formation of mural thrombi being a major threat of this limitation. Herein, a bilayered hydrogel tube based on the essential structure of native blood vessels is developed by optimizing the relation between vascular functions and the molecular structure of hydrogels. The inner layer of the SDVGs comprises...
Hydrogen Evolution Reaction
In article number 2207146, Rui Gao, Chuan Shi, and co‐workers present Pt atoms to redisperse on α‐MoC1−x substrate from carbon nanotubes, which creates dual active interfaces of Pt species dispersed over carbon nanotubes and α‐MoC1−x. Benefiting from the strong electronic interaction between the Pt atom and α‐MoC1−x, the utilization efficiency of the Pt atom is evidently...
Developing high‐performance electrocatalysts toward hydrogen evolution reaction (HER) is important for clean and sustainable hydrogen energy, yet still challenging. Herein, an α‐MoC1 ‐ x induced redispersing strategy to construct a superior HER electrocatalyst (Pt/CNTs‐N + α‐MoC1 ‐ x) by mechanical mixing of α‐MoC1 ‐ x with Pt/CNTs‐N followed by thermal reduction is reported. It is found that thermo‐activation...
Single atom sites (SAS) of FeN4 are clarified as one of the most active components for the oxygen reduction reaction (ORR). Effective strategies by engineering the local coordination environment and site density of FeN4 sites are crucial to further enhance the electrocatalytic ORR performance. Herein, the integration of a second metal of Mn with Fe to construct Fe&Mn/N‐C catalysts with enhanced...
Molybdenum phosphide (MoP) is regarded as one of the most promising alternatives to noble‐metal based electrocatalysts for efficient hydrogen evolution reaction (HER) due to its similar d‐band electronic structure to noble metals and tunable features associated with phase and composition. However, it still remains a great challenge to construct MoP electrocatalysts with abundant active sites that...
Heterostructured Electrocatalysts
In article number 2102413, Baocang Liu, Rui Gao, Jun Zhang, Bin Liu, and co‐workers report the construction of a novel heterostructured electrocatalyst of CePO4/MoP/carbon cloth (CC) constituting MoP nanobelts with surface‐decorated CePO4 nanoparticles on CC for hydrogen evolution reaction (HER). The CePO4/MoP/CC electrocatalyst exhibits a low overpotential of 48...
A robust polyaniline‐assisted strategy is developed to construct a self‐supported electrode constituting a nitrogen, phosphorus, sulfur tri‐doped thin graphitic carbon layer encapsulated sulfur‐doped molybdenum phosphide nanosheet array (NPSCL@S‐MoP NSs/CC) with accessible nanopores, desirable chemical compositions, and stable composite structure for efficient hydrogen evolution reaction (HER). The...
The practical application of lithium–sulfur (Li–S) batteries is hindered by the “shuttle” of lithium polysulfides (LiPS) and sluggish Li–S kinetics issues. Herein, a synergistic strategy combining mesoporous architecture design and defect engineering is proposed to synthesize multifunctional defective 3D ordered mesoporous cobalt sulfide (3DOM N‐Co9S8−x) to address the shuttling and sluggish reaction...
In article number 1700234, Yi‐Lun Ying, Yi‐Tao Long, and co‐workers, demonstrate that a well‐defined silver‐coated nanopore electrode acts as a “rocket” which can electrochemically manipulate silver ions diffused from the tiny opening of the nanopore. As a result, the confining electrochemical effect of the nanopore electrode guides the self‐assembly of AuNPs in the microscale highly homogeneously...
The self‐assembly of nanoparticles is a challenging process for organizing precise structures with complicated and ingenious structures. In the past decades, a simple, high‐efficiency, and reproducible self‐assembly method from nanoscale to microscale has been pursued because of the promising and extensive application prospects in bioanalysis, catalysis, photonics, and energy storage. However, microscale...
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