Results 31 to 40 of about 6,445 (304)

Tuning Separator Chemistry: Improving Zn Anode Compatibility via Functionalized Chitin Nanofibers

Advanced Functional Materials, EarlyView.
Nanochitin derived from waste shrimp shells is used to fabricate separators for aqueous zinc batteries. By tuning the density of amine and carboxylic surface groups, water mobility at the separator interface is controlled, promoting uniform zinc deposition, suppressing dendrite growth, and enabling exceptional cycling stability exceeding 2000 h ...
Ibrahim Al Kathemi, Vishnu Arumughan, Mohamed Zbiri, Marcel Kröger, Ira Smal, Eero Kontturi, Roza Bouchal   +6 more
wiley   +1 more source

Determination of zinc in fuel alcohol by anodic stripping voltammetry

Eclética Química, 2018
The presence of heavy metals in fuel ethanol is obtained in different steps as production and storage of ethanol, constituting an inorganic contamination. Quantitative analysis of these contaminants has been usually carried out by conventional techniques
Marcelo Firmino de Oliveira, Adelir Aparecida Saczk, Leonardo Luiz Okumura, Nelson Ramos Stradiotto   +3 more
doaj   +1 more source

Graded‐Interface Dual‐Environment Hydrogel‐Polymer Electrolyte for Stabilized Anode and Sustained Cathode Kinetics in Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, EarlyView.
A graded‐interface hydrogel‐polymer electrolyte decouples water activity to simultaneously stabilize the Zn anode and sustain cathode kinetics. The flexible design supports dendrite‐free cycling over 1600 h, high capacity in both MnO2 and V2O5 full cells, and stable pouch‐cell performance under bending, resolving the fundamental water conflict in ...
Shuyun Wang, Shengmei Chen, Xinyu Wang, Haipeng Wang, Jinsong Zhou, Ka Kiu Keith Cheung, Yiran Ying, Longtao Ma, Juan Antonio Zapien   +8 more
wiley   +1 more source

Determinação eletroanalítica do hormônio progesterona em fármacos utilizando o eletrodo de filme de bismuto [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em QuímicaEsse trabalho descreve o desenvolvimento de um método eletroanalítico para determinação do hormônio ...
Lima, Camila Alves de
core  

Determination of Cu and As by Stripping Voltammetry in Utility Poles Treated with Chromated Copper Arsenate (Cca)

International Journal of Electrochemical Science, 2008
This work presents an electroanalytical method for determining the presence of Cu and As in utility poles treated with chromated copper arsenate (CCA) using anodic and cathodic stripping voltammetry in the differential pulse mode (DPASV and DPCSV) and a ...
Fábio R. Bento, Marco T. Grassi, Almir Sales, Lucia H. Mascaro   +3 more
doaj   +1 more source

Tailoring Li‐ion Storage and Transport in Two‐Dimensional Conjugated Metal‐Organic Frameworks via Precise Nitrogen Incorporation

Advanced Functional Materials, EarlyView.
Two nitrogen‐doped 2D conjugated metal‐organic frameworks (2D c‐MOFs, namely Cu‐Nx‐OHBA, x = 2 or 4) are synthesized, featuring precise nitrogen incorporation via rational ligand design. The Cu‐Nx‐OHBA 2D c‐MOFs are largely tailorable by varying skeletal nitrogen density, with respect to electrical conductivity, Li‐storage capacitance, and Li‐transport
Xiangyu Li, Shaoze Shi, Fucai Cui, Rashid Iqbal, Pengyu Wang, Tianrui Wu, Jingcheng Hao, Renhao Dong   +7 more
wiley   +1 more source

Otimização de técnicas voltamétricas de redissolução para determinação de metais traço em amostras de águas de ambientes costeiros de Santa Catarina [PDF]

, 2003
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em Química.Foram desenvolvidos parâmetros eletroquímicos utilizando técnicas voltamétricas de redissolução, para posterior ...
Mello, Ligia Catarina
core  

The Behavior of Ciprofloxacin at a DNA Modified Glassy Carbon Electrodes

International Journal of Electrochemical Science, 2014
The voltammetric behavior of ciprofloxacin was investigated using cyclic voltammetry and differential-pulse anodic stripping voltammetry at bare glassy carbon (GC) electrodes and DNA- modified glassy carbon (DNA-GC) electrodes.
Nizam Diab, Ibrahim Abu-Shqair, Radi Salim, Mohammad Al-Subu   +3 more
doaj   +1 more source

A Bilayered Inorganic‐Metal Interface Enables Highly Reversible Aluminum Deposition for Long‐Life Aqueous Batteries

Advanced Functional Materials, EarlyView.
A gradient M/MOx (M = Sn, Cu, Cd) synergistic interphase was constructed on Al via a one‐step displacement reaction. This interphase leverages high aluminophilicity and ion‐buffering capability to accelerate desolvation, enhance Al3+ transport, and suppress side reactions, enabling ultrastable symmetric cell operation at 0.05 mA cm−2 for 1800 h with an
Shuang Cheng, Xiaomin Cheng, Linge Li, Yaping Wang, Jing Zhang, Yongzheng Zhang, Hongzhen Lin, Jian Wang   +7 more
wiley   +1 more source

Dynamic Interfacial Chemistry of Choline Chloride as Electrolyte Additive for Stable Zn‐Iodine Batteries

Advanced Functional Materials, EarlyView.
Choline chloride (ChCl) additive enables dynamic interface engineering in Zn‐I2 batteries by forming hydrophobic polyiodide complexes and a Zn‐stabilizing Ch+‐rich layer under electric field modulation. This dual‐function strategy suppresses iodine hydrolysis and dendrite formation, while optimizing Zn2+ solvation and transport for high‐efficiency ...
Xiaoyu Bi, Yuchuan Ren, Ao Yu, Linlin Yang, Ren He, Yapeng Cheng, Xingqi Chang, Xuan Lu, Yanting Xie, Qian Xue, Hu Yuan, Canhuang Li, Runzhou Huang, Jordi Jacas Biendicho, Chaoqi Zhang, Jian Shang, Andreu Cabot   +16 more
wiley   +1 more source