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Microsized‐Carbon Anodes
In article number 2305841, Chengzhi Zhang, Jun Tan, Jinshui Liu, and co‐workers propose heterogeneous carbon‐carbon composite design with robust structure. The confinement effect originating from expanded‐graphite skeletons suppressed the crystallization degree of pitch‐derived carbon and contributed rich edge‐defect sites in composites, providing high capacity and stability...
Pitch‐derived carbon (PC) anode features the merits of low‐cost, rich edge‐defect sites, and tunable crystallization degree for potassium ion batteries (PIBs). However, gaining the PC anode with both rich edge‐defect sites and robust structure remains challenging. Herein, micro‐sized and robust PC/expanded‐graphite (EG) composites (EGC) with rich edge‐defect sites are massively synthesized via melting...
Near‐neutral zinc–air batteries (ZABs) have garnered significant research interest due to their high energy density, exceptional electrochemical reversibility, and adaptability to ambient air. However, these batteries suffer from substantial electrochemical polarization, low energy efficiency, and poor rate performance. In this study, a mesoporous carbon (meso‐C) with a high specific surface area...
Non‐alkaline zinc‐air batteries (ZABs) that use reversible O2/ZnO2 chemistry exhibit excellent stability and superior reversibility compared to conventional alkaline ZABs. Unlike alkaline ZABs, ZnO2 discharge products are generated on the surface of the air cathodes in non‐alkaline ZABs, requiring more gas–liquid–solid three‐phase reaction interfaces. However, the kinetics of reported ZABs based on...
Coordination Polymers
In article number 2302492, Fa‐Kun Zheng, Guo‐Cong Guo, and co‐workers first reveal a coordination polymers (CPs)‐based direct X‐ray detector with anisotropic charge transport from the perspective of structural chemistry. This study provides beneficial guidance and deep insight for designing high‐performance CPs‐based X‐ray detectors.
Anisotropic charge transport plays a pivotal role in clarifying the conductivity mechanism in direct X‐ray detection to improve the detection sensitivity. However, the anisotropic photoelectric effect of semiconductive single crystal responsive to X‐ray is still lacking of theoretical and experimental proof. The semiconductive coordination polymers (CPs) with designable structures, adjustable functions,...
Extremely low temperature has posed huge burden on the public safety concerns and global economics, thereby calling for high‐performance warmth retention materials to resist harsh environment. However, most present fibrous warmth retention materials are limited by their large fiber diameter and simple stacking structure, leading to heavy weight, weak mechanical property, and limited thermal insulation...
Metallic‐phase iron sulfide (e.g., Fe7S8) is a promising candidate for high power density sodium storage anode due to the inherent metal electronic conductivity and unhindered sodium‐ion diffusion kinetics. Nevertheless, long‐cycle stability can not be achieved simultaneously while designing a fast‐charging Fe7S8‐based anode. Herein, Fe7S8 encapsulated in carbon‐sulfur bonds doped hollow carbon fibers...
Sodium Anode Materials
In article number 2302200, Chengzhi Zhang, Jun Tan, Jinshui Liu, and co‐workers present a high‐power density sodium‐ion batteries (SIBs) anode that Fe7S8 encapsulated in carbon‐sulfur bonds doped carbonaceous fibers (NHCFs‐S‐Fe7S8). The multinomial optimized NHCFs‐S‐Fe7S8 integrates a suitable structure for high power density and longer cycle life SIBs.
Highly active bifunctional electrocatalysts for oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) have always been the key factors to affect the performance of zinc–air batteries. However, integrating the independent reaction sites of ORR and OER in a catalyst remains a major challenge. Herein, a collaborative strategy based on defect induction and doping is proposed to prepare the...
With the widespread application of lithium iron phosphate batteries, the production capacity of the yellow phosphorus industry has increased sharply, and the treatment of the highly toxic by‐product PH3 is facing severe challenges. In this study, a 3D copper‐based catalyst (3DCuO/C) that can efficiently decompose PH3 at low temperatures and low oxygen concentrations is synthesized. The PH3 capacity...
Photocatalysts
A 3D Cu‐based PH3 decomposition catalyst with a scaly morphology is synthesized via hydrothermal loading, exhibiting notable efficiency in PH3 decomposition under low‐temperature nd micro‐aerobic conditions. The deactivation of the catalyst is found to be attributable to the formation of Cu3P. In article number 2301169, Riguang Zhang, Fei Wang, Kai Li, and co‐workers suggest the potential...
In the current drug discovery process, the synthesis of compound libraries is separated from biological screenings both conceptually and technologically. One of the reasons is that parallel on‐chip high‐throughput purification of synthesized compounds is still a major challenge. Here, on‐chip miniaturized high‐throughput liquid–liquid extraction in volumes down to 150 nL with efficiency comparable...
Layered double‐hydroxide (LDH) has been considered an important class of electrocatalysts for the oxygen evolution reaction (OER), but the adsorption‐desorption behaviors of oxygen intermediates on its surface still remain unsatisfactory. Apart from transition‐metal doping to solve this electrocatalytic problem of LDH, rare‐earth (RE) species have sprung up as emerging dopants owing to their unique...
The interaction between platelets and circulating tumor cells (CTCs) contributes to distal tumor metastasis by protecting CTCs from immunological assault and shear stress, which can be disrupted by nitric oxide (NO) through inhibiting platelet‐mediated adhesion. To eradicate primitive tumors and inhibit CTC‐based pulmonary metastasis, a novel biomimetic nanomedicine (mCuMNO) is designed by encapsulating...
Waterproof and breathable membranes that prevent liquid water penetration, while allowing air and moisture transmission, have attracted significant attention for various applications. Electrospun nanofiber materials with adjustable pore structures, easily tunable wettability, and good pore connectivity, have shown significant potential for constructing waterproof and breathable membranes. Herein,...
Inner Ear Therapy
In article number 2106591, Bin Ye, Wenguo Cui, Mingliang Xiang, and co‐workers construct a mussel‐inspired injectable hydrogel microsphere loading Ebselen liposomes that adheres to the cochlea round windows membrane (RWM). The positively charged primary amine groups through electrostatic interaction and the catechol groups through high‐strength coordination bonds and hydrogen bonds...
The least damaging and most economical method to deliver drugs or carriers into the inner ear for treatment of disease is through the middle ear. However, the retention of drug in the middle ear is an obstacle. Here, inspired by the adhesion of mussels, a methacrylate gelatin microspheres (GM) coupling polydopamine (PDA) layer (GM@PDA) with excellent adhesive ability is constructed, and Ebselen liposomes...
An atomically thin TaSe2 sample, approximately containing two to three layers of TaSe2 nanosheets with a diameter of 2.5 cm is prepared here for the first time and applied on the detection of various Raman‐active molecules. It achieves a limit of detection of 10−10 m for rhodamine 6G molecules. The excellent surface‐enhanced Raman scattering (SERS) performance and underlying mechanism of TaSe2 are...
As the aging population increases in many countries, electronic skin (e‐skin) for health monitoring has been attracting much attention. However, to realize the industrialization of e‐skin, two factors must be optimized. The first is to achieve high comfort, which can significantly improve the user experience. The second is to make the e‐skin intelligent, so it can detect and analyze physiological...
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