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The utility of electrochemical active biofilm in bioelectrochemical systems has received considerable attention for harvesting energy and chemical products. However, the slow electron transfer between biofilms and electrodes hinders the enhancement of performance and still remains challenging. Here, using Fe3O4 /L‐Cys nanoparticles as precursors to induce biomineralization, a facile strategy for the...
Modulating the coordination configuration of single Fe atom has been an efficient strategy to strengthen the redox dynamics for lithium‐sulfur batteries (LSBs) but remains challenging. Herein, the single Fe atom is functioned with nitrogen and carbon atoms in the first shell, and simultaneously, oxidized sulfur (─SOx) in the second shell, which presents a lower antibonding state and well address the...
The availability of durable, high‐performance electrocatalysts for the hydrogen oxidation reaction (HOR) is currently a constraint for anion‐exchange membrane fuel cells (AEMFCs). Herein, a rapid microwave‐assisted synthesis method is used to develop a core–shell catalyst support based on a hydrogenated TiO2/carbon for PtRu nanoparticles (NPs). The hydrogenated TiO2 provides a strong metal‐support...
Rechargeable aqueous zinc–ion batteries are regarded as promising energy storage devices due to their attractive economic benefits and extraordinary electrochemical performance. However, the sluggish Zn2+ mass transfer behavior and water‐induced parasitic reactions that occurred on the anode–electrode interface inevitably restrain their applications. Herein, inspired by the selective permeability...
Sodium‐ion batteries are a promising substitute for lithium batteries due to the abundant resources and low cost of sodium. Herein, honeycomb‐shaped MoSe2/reduced graphene oxide (rGO) composite materials are synthesized from graphene oxide (GO) and MoSe2 through a one‐step solvothermal process. Experiments show that the 3D honeycomb structure provides excellent electrolyte penetration while alleviating...
Doping Cd atom(s) into gold clusters is very promising in both theoretical study and practical applications. However, it has long been a challenge to synthesize heavily Cd‐doped AuCd bimetallic clusters and thereby reveal their structure‐property correlations. Herein a novel AuCd bimetallic cluster: Au16Cd16(SC6H11)20 (SC6H11 denotes deprotonated cyclohexanethiol) with a Cd to Au atomic ratio of 1:1...
High‐performance optoelectronic nonvolatile memory is promising candidate for next‐generation information memory devices. Here, a floating‐gate memory is constructed based on van der Waals heterostructure, which exhibits a large storage window ratio (≈75.5%) and an extremely high on/off ratio (107), as well as an ultrafast electrical writing/erasing speed (40 ns). The enhanced performance enables...
Ni single‐atom catalysts (SACs) are appealing for electrochemical reduction CO2 reduction (CO2RR). However, regulating the balance between the activity and conductivity remains a challenge to Ni SACs due to the limitation of substrates structure. Herein, the intrinsic performance enhancement of Ni SACs anchored on quasi‐one‐dimensional graphene nanoribbons (GNRs) synthesized is demonstrated by longitudinal...
The balance between large nonlinear optical (NLO) effect and wide bandgap is the key scientific issue for the exploration of infrared NLO materials. Targeting this issue, two new pentanary chalcogenides KGaGe1.37Sn0.63S6 (1) and KGaGe1.37Sn0.63Se6 (2) are obtained by the three‐in‐one strategy, viz. three types of fourfold‐coordinated metal elements co‐occupying the same site. They crystallize in the...
In this paper, Au@Ag nanopencil is designed as a multimodality plasmonic nanoprobe based on asymmetric etching for the detection of SCN− and ClO−. Au@Ag nanopencil with Au tip and Au@Ag rod is prepared by asymmetric tailoring of uniformly grown silver‐covered gold nanopyramids under the combined effect of partial galvanic replacement and redox reaction. By asymmetric etching in different systems,...
Electroreduction of nitrite (NO2−) to valuable ammonia (NH3) offers a sustainable and green approach for NH3 synthesis. Here, a Cu3P@TiO2 heterostructure is rationally constructed as an active catalyst for selective NO2−‐to‐NH3 electroreduction, with rich nanosized Cu3P anchored on a TiO2 nanoribbon array on Ti plate (Cu3P@TiO2/TP). When performed in the 0.1 m NaOH with 0.1 m NaNO2, the Cu3P@TiO2/TP...
Microstructures play a critical role to influence the polarization behavior of dielectric materials, which determines the electromagnetic response ability in gigahertz. However, the relationship between them, especially in the solid‐solution structures is still absent. Herein, a series of (Ti1‐yNby)2AlC MAX phase solid solutions with nano‐laminated structures have been employed to illuminate the aforementioned...
Synthesis of green ammonia (NH3) via electrolysis of nitric oxide (NO) is extraordinarily sustainable, but multielectron/proton‐involved hydrogenation steps as well as low concentrations of NO can lead to poor activities and selectivities of electrocatalysts. Herein, it is reported that oxygen‐defective TiO2 nanoarray supported on Ti plate (TiO2−x/TP) behaves as an efficient catalyst for NO reduction...
Cobalt phthalocyanine (CoPc) has attracted particular interest owing to its excellent activity during the electrochemical CO2 conversion to CO. However, the efficient utilization of CoPc at industrially relevant current densities is still a challenge owing to its nonconductive property, agglomeration, and unfavorable conductive substrate design. Here, a microstructure design strategy for dispersing...
Microstructure Design Strategies
In article number 2300051, Qian Fu and co‐workers report a microstructure design strategy for dispersing CoPc molecules on macroporous hollow nanocarbon sheets in CO2 electrolysis. The carbon sheets' interconnected and macroporous structure provides a large surface area for anchoring CoPc with high dispersion and promotes reactant mass transport, thus improving the...
Recently, artificial channel‐based ionic diodes and transistors are extensively studied to mimic biological systems. Most of them are constructed vertically and are challenging to be further integrated. Several examples of ionic circuits with horizontal ionic diodes are reported. However, they generally require nanoscale channel sizes to meet the demand for ion‐selectivity, resulting in low current...
Electrochemical nitrate (NO3−) reduction reaction (NO3−RR) is a potential sustainable route for large‐scale ambient ammonia (NH3) synthesis and regulating the nitrogen cycle. However, as this reaction involves multi‐electron transfer steps, it urgently needs efficient electrocatalysts on promoting NH3 selectivity. Herein, a rational design of Co nanoparticles anchored on TiO2 nanobelt array on titanium...
Aqueous zinc‐ion batteries hold attractive potential for large‐scale energy storage devices owing to their prominent electrochemical performance and high security. Nevertheless, the applications of aqueous electrolytes have generated various challenges, including uncontrolled dendrite growth and parasitic reactions, thereby deteriorating the Zn anode's stability. Herein, inspired by the superior affinity...
Smart Photonic Materials
In article number 2204199, Bin Wang, Jinpeng Li, Guangdong Ying, and co‐workers construct a dual photonic bandgap structure to achieve flexible switching of intensity, wavelength, and direction of circularly polarized luminescence accompanied by ultra‐high asymmetry factor values. This work provides insights into the real‐time manipulation of circularly polarized signals by...
Currently, the smart photonic materials that can switch circularly polarized signals in real‐time have attracted extensive attention due to numerous potential applications in information storage and photonics displays. However, the dynamically reversible switching of circularly polarized signals requires precise structural reconfiguration, which is rarely achieved in traditional biomaterials. Herein,...
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