Results 11 to 20 of about 125,187 (145)
ABSTRACT Fe‐N‐C electrocatalysts are considered promising alternatives to platinum‐based catalysts for advancing the development of metal–air batteries. However, the simultaneous realization of scalable synthesis, hierarchical mass‐transfer pathways, and precise regulation of Fe‐N4 sites remains challenging. Different from conventional Fe‐N‐C synthesis,
Bingye Song +7 more
wiley +1 more source
ABSTRACT High‐temperature microwave‐absorbing materials (HTMAMs) are vital for the electromagnetic stealth of hypersonic aircraft and aerospace engines. Traditional carbon‐based or magnetic‐based absorbers suffer from oxidation, Curie‐temperature limitations, and impedance mismatch under extreme conditions.
Jing Wu +6 more
wiley +1 more source
ABSTRACT MoS2 is considered a promising electrocatalyst for the hydrogen evolution reaction (HER) because of its low cost and excellent stability. However, its practical application is severely limited by the scarcity of edge active sites and poor intrinsic electrical conductivity.
Ting Wang +6 more
wiley +1 more source
Enhanced Microwave Attenuation via Coupled Ni3ZnC0.7/Ni3InC0.5 Heterogeneous Interfaces
ABSTRACT The growing complexity of electromagnetic environments places increasingly stringent demands on microwave absorbers, particularly regarding broadband attenuation, impedance matching in ultrathin configurations, and structural stability. Herein, we propose a dual nonstoichiometric carbide synergistic regulation strategy, in which Ni3ZnC0.7 and ...
Xiaomeng Jiang +10 more
wiley +1 more source
ABSTRACT Vanadium redox flow batteries show considerable promise for energy storage, yet their overall performance is still hindered by the limited electrochemical activity of graphite felt (GF) electrodes. Herein, using folic acid and metal salts as precursors, M–N–C functionalized carbon nanosheets (M–NC, M=Co, Fe, and Ni) were prepared via a ...
Long Jiang +7 more
wiley +1 more source
ABSTRACT Capacitive deionization (CDI) using activated carbon (AC) electrodes holds great promise for seawater desalination, yet its practical application is severely constrained by the intrinsic hydrophobicity of carbon surfaces. Herein, we propose a solid‐state superhydrophilic modulation strategy that physically wet‐mixes superhydrophilic MOF ...
Ruiting Ni +4 more
wiley +1 more source
ABSTRACT Sb2S3 is regarded as a promising anode for sodium‐ion batteries (SIBs) because of its high theoretical capacity and moderate working potential. However, it suffers from huge volume changes, poor conductivity, and excessive side reactions, leading to severe capacity decay and a low initial Coulombic efficiency (ICE), thus limiting its practical
Jia‐Hao Zhao +6 more
wiley +1 more source
Overdischarge Induced Porous Graphite for Upcycling of Spent Lithium‐Ion Batteries
ABSTRACT The upcycling of spent lithium‐ion batteries (LIBs) into high‐performance materials offers both economic and environmental benefits. In this study, the principle of battery discharge‐induced copper dissolution and deposition is applied to fabricate a graphite/nanocopper composite anode.
Yadong Wang +13 more
wiley +1 more source
ABSTRACT Photocatalytic hydrogen peroxide (H2O2) production from water and oxygen driven by solar energy represents a highly promising green and sustainable strategy. Herein, lignin‐derived carbon quantum dots (LCDs) were strategically introduced at the heterojunction between a Bi‐based metal organic framework (Bi‐MOF) and ZnIn2S4 (ZIS).
Wanpeng Sun +8 more
wiley +1 more source
有机磷农药的长期大量使用会造成土壤、水体等生态环境的污染,进而危害人类健康。作为有机磷农药的代表,毒死蜱使用后在水中的残留时间长、毒性大,被多个国家禁用,而在我国仍有使用。以球形铁碳粒子作为粒子电极,构建三维电极-电Fenton体系处理毒死蜱模拟废水,探讨不同操作条件对废水中COD和有机磷去除率的影响,采用正交试验探究各因素的影响程度。结果表明:与活性炭纤维、泡沫镍相比,不锈钢作为阴极材料时对废水中的COD和有机磷去除效果较好。以不锈钢为阴极,适量Na2SO4为电解质,在电流密度为16 mA/cm2 ...
陈子杨, 黄胜, 余健
doaj +2 more sources

