Pinpointing the Cl Coordination Effect on Mn ‐N3‐Cl Moiety Toward Boosting Reaction Kinetics and Suppressing Shuttle Effect in Li–S Batteries
This study reveals that Cl coordination positively contributes to improving the catalytic activity of the Mn-N3-Cl moiety, providing a fresh perspective for the design of high-performance SACs. (Source: Small)
Source: Small - March 28, 2024 Category: Nanotechnology Authors: Yurong Yan,
Ning Fu,
Wei Shao,
Tiantian Wang,
Ying Liu,
Yongsheng Niu,
Yanwei Zhang,
Mao Peng,
Zhenglong Yang Tags: Research Article Source Type: research
Advanced Hollow Cubic FeCo ‐N‐C Cathode Electrocatalyst for Ultrahigh‐Power Aluminum–Air Battery
FeCo –HNC, featuring atomically dispersed dual metal sites and a hollow cubic structure, exhibits a half-wave potential of 0.907 V. Integrated into an aluminum–air battery, it attains unprecedented power densities of 804 mW cm−2 in ambient air and 1200 mW cm−2 in an oxygen-rich environment, showcasing stability over an impressive 200 h continuous operation. AbstractThe exploration of electrocatalysts toward oxygen reduction reaction (ORR) is pivotal in the development of diverse batteries and fuel cells that rely on ORR. Here, a FeCo-N-C electrocatalyst (FeCo –HNC) featuring with atomically dispersed dual...
Source: Small - March 28, 2024 Category: Nanotechnology Authors: Zhidong Tian,
Yiqi Liang,
Kai Chen,
Jiyuan Gao,
Zhiwen Lu,
Xiang Hu,
Yichun Ding,
Zhenhai Wen Tags: Research Article Source Type: research
Robust, Narrow ‐Band Nanorods LEDs with Luminous Efficacy > 200 lm/W: Next‐Generation of Efficient Solid‐State Lighting
This article reveals narrow emission band nanorods (NRs) with tailored wavelengths to enhance the color rendering index (CRI) and luminous efficacy (LE). For general lighting, CdSe/ZnxCd1-xS/ZnS NRs with quantum yield up to 96% and 99% in ultra-efficient LEDs maximize the efficacy, reaching a record efficacy of 214 lm W−1 (certified by the National Accreditation Service). The mid-power (0.3 W@ 50 mA) NR-LEDs show significantly enhanced long-term stability (T95 = 400 h @ 50 mA). AbstractEnergy-efficient white light-emitting diodes (LEDs) are in high demand across the society. Despite the significant advancements in the ...
Source: Small - March 28, 2024 Category: Nanotechnology Authors: Chengbin Kang,
Maksym F. Prodanov,
Jianxin Song,
Kumar Mallem,
Zebing Liao,
Valerii V. Vashchenko,
Abhishek K. Srivastava Tags: Research Article Source Type: research
Hierarchical Polyimide Microparticles with Controllable Morphology
The tunable macromolecular chain conformation of polyelectrolytes triggered by the addition of 1,2-dimethylimidazole and cetyltrimethylammonium chloride (CTAC) can greatly influence their self-assembly behavior during hydrothermal reaction (HTR). Hierarchical polyimide (PI) microparticles with controllable morphology are prepared. This work provides new insights into the construction of diverse hierarchical structures of polymer materials. AbstractHierarchical polyimides (PIs) not only show outstanding thermal stability and high mechanical strength but also have great advantages in terms of microstructure and surface area,...
Source: Small - March 27, 2024 Category: Nanotechnology Authors: Zhichao Wang,
Jianhua Hu,
Haitao Wang Tags: Research Article Source Type: research
Harnessing Natural Evaporation for Electricity Generation using MOF ‐Based Nanochannels
This work studies using nanochannels and the metal –organic framework MOF-801 to capture thermal energy from water evaporation in the environment and convert it into electrical power. MOF-801 enhances output with a 2.2 V open circuit voltage and 1.9 µA short circuit current. This evaporation-driven process provides an environmentally friendly w ay to generate power from water, heat, and light anywhere without external dependencies. AbstractFunctionalized nanochannels can convert environmental thermal energy into electrical energy by driving water evaporation. This process involves the interaction between the solid –...
Source: Small - March 27, 2024 Category: Nanotechnology Authors: Huimin Liu,
Peng Cui,
Jingjing Zhang,
Jingjing Wang,
Ying Ge,
Zunkang Zhou,
Yao Meng,
Zanying Huang,
Ke Yang,
Zuliang Du,
Gang Cheng Tags: Research Article Source Type: research
