Results 21 to 30 of about 367,222 (166)

Anchoring Polyoxometalate (PMo11Fe) on ZnO Nanosheet for Construction of a Novel S‐Scheme Heterojunction Toward Efficient Photodegradation of Levofloxacin Antibiotics

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Currently, the photocatalytic performance of ZnO has been severely limited by its weak light response ability and sluggish charge carrier dynamics, which considerably hinder its extensive application in photocatalytic fields. Herein, through anchoring the synthesized K6PMo11FeO40·nH2O (PMo11Fe) onto ZnO nanosheets, a novel S‐scheme ...
Xinjia Zhang   +8 more
wiley   +1 more source

Mesoporous Hexametallic High‐Entropy Alloy Nanotubes With Multicomponent Electronic Modulation for Efficient Bifunctional Catalysis

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Platinum‐based electrocatalysts are fundamentally constrained by strong oxygen binding, which restricts the oxygen reduction reaction (ORR) kinetics, and by severe CO poisoning, which hinders the methanol oxidation reaction (MOR). To address these limitations, we synthesized PdPtRuIrRhNi high‐entropy alloy (HEA) mesoporous nanotubes that ...
Hong Pan   +6 more
wiley   +1 more source

Synergistic Effect of Hydrophilic Surface and Nano‐Ag2O in TiO2‐Based Composites Coating on Antibacterial and Osteogenic Properties of Low Modulus Ti‐Mo‐Ag Alloy

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Ti‐15Mo‐2.5Ag alloy exhibited a low modulus and strong antibacterial ability but poor bioactivity. To resolve this problem, sandblasting and anodization were used to create a hydrophilic and nano‐Ag2O‐containing TiO2 coating. Subsequently, the microstructure and physicochemical properties were investigated by scanning electron microscopy, X ...
Yanchun Xie   +11 more
wiley   +1 more source

Fe Nanoclusters Regulate Surface Electronic Structure and Promote Charge Extraction for Enhanced Photocatalytic Degradation Through Heterojunction Engineering in ZnIn2S4

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Metal nanoclusters provide abundant catalytically active sites and unique electronic structures that are highly beneficial for enhancing photocatalytic performance; however, their practical application is often hindered by poor photostability.
Yiying Qin   +6 more
wiley   +1 more source

退火对硅锗薄膜上低维结构的PL光谱的影响

open access: yes四川大学学报. 自然科学版, 2009
采用激光辐照的方法在硅锗薄膜样品表面生成微米级小孔,用高精度扫描电镜观察孔内结构,发现片状的纳米结构.用荧光光谱仪测其光致荧光谱,在705nm 处出现较强的光致荧光谱(PL).对片状结构在800℃下进行退火20min 后,其 PL 光谱明显蓝移至575nm.退火40min 后,在725nm 处有较宽的 PL 光谱,同时,在606nm 处有一尖锐的 PL 光谱.利用量子受限和纳晶与氧化物的界面态综合模型解释 PL 光谱的产生.
吴克跃, 宋军, 吴兴举
doaj  

Defect Engineering of Carbon Frameworks Driven All‐Slope Hard Carbon Anodes for Fast‐Charging Sodium‐Ion Batteries

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Fast‐charging capability is one of the crucial factors determining the application prospects of sodium‐ion batteries (SIBs). Nevertheless, the mismatched sodium storage kinetics and Coulombic efficiency (CE) in hard carbon anodes are bottlenecks in the implementation of fast‐charging SIBs. Herein, we propose a facile pre‐carbonization strategy
Qixin Liu   +8 more
wiley   +1 more source

曲酸与胰蛋白酶相互作用的光谱学研究

open access: yes四川大学学报. 自然科学版, 2009
研究了曲酸对胰蛋白酶活性的影响,以及曲酸处理的胰蛋白酶的紫外光谱、荧光淬灭光谱、同步荧光光谱和三维荧光光谱.结果显示曲酸对胰蛋白酶具有激活作用;二者相互作用后,曲酸可以使胰蛋白酶的紫外吸收强度增强,但却使得蛋白内源荧光强度下降.Stern-Volmer作图显示了曲酸对胰蛋白酶的荧光淬灭为静态淬灭作用,求出二者的结合常数K为5.30×10~7L/mol,结合位点n为1.50;用同步荧光光谱和三维荧光光谱探讨了曲酸对胰蛋白酶构象的影响.
李黎   +5 more
doaj  

Synergetic Ruthenium Clusters and Ligand Motifs in Insoluble Polyoxometalates for Efficient Urea Electrosynthesis

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT The electrocatalytic co‐reduction of CO2 and nitrate (NO3− ${\text{NO}}_{3}^{-}$) to synthesize urea presents a sustainable alternative to traditional industrial processes, yet its efficiency is fundamentally limited by the kinetically mismatched activation and coupling of CO2 and NO3− ${\text{NO}}_{3}^{-}$.
Jiayu Liu   +9 more
wiley   +1 more source

Fenton法处理聚合物钻井废水中有机物的实验研究

open access: yesGongye shui chuli, 2019
关键词: 钻井废水, 高级氧化技术, Fenton氧化, 紫外光谱 ...
唐一鸣   +4 more
doaj   +2 more sources

Dual‐Layer Solid Electrolyte Interphase Enables Effective Suppression of Lithium Dendrites

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT The heterogeneous solid electrolyte interphase (SEI) at the Li metal anode often leads to slow and uneven Li+ flux, causing severe Li dendrite growth. Herein, we combine X‐ray photoelectron spectroscopy and cryogenic transmission electron microscopy to demonstrate that a dual‐layer SEI, consisting of an inorganic inner layer and an organic ...
Huaping Wang   +4 more
wiley   +1 more source

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