Results 51 to 60 of about 49,944 (196)

Harmonizing the Pyrene and Ether Groups in Covalent Triazine Polymers for Highly Effective H2O2 Photosynthesis via One‐Step Two‐Electron Oxygen Reduction

Advanced Functional Materials, EarlyView.
The pyrene and ether groups are incorporated into the covalent triazine polymer (CTP) structure. The synergistic effect of the two functional groups endows CTP with better electron transfer, light absorption, and oxygen activation properties. An impressive apparent quantum yield (13.2% @420 nm) and a remarkable solar‐to‐chemical conversion efficiency ...
Chong Wang, Jinliang Lv, Yichun Lu, Hanfeng Ye, Xuan Zhang, Leonardo Cancellara, Nadezda Tarakina, Jiande Lin, Xin Gao, Oleksandr Savateev, Jiajia Cheng   +10 more
wiley   +1 more source

Study on Electrochemistry and Nucleation Process of Nickel Electrodeposition

International Journal of Electrochemical Science, 2017
Nickel thin films were prepared by plating technology on glassy carbon to investigate electrodeposition mechanism and nucleation process. Princeton parstat 2273 station was used to analyze nickel electrodeposition process based on cyclic voltammetry ...
Yundan Yu, Lixia Sun, Hongliang Ge, Guoying Wei, Li Jiang   +4 more
doaj   +1 more source

Stabilizing Cationic Palladium Single‐Atom Sites on Heteroatom‐Doped Carbon for Selective Hydrogen Peroxide Electrosynthesis

Advanced Functional Materials, EarlyView.
In this research, it is demonstrated that dual nitrogen and sulfur doping in hollow carbon spheres creates a tunable coordination environment that stabilizes cationic Pd single atoms as robust organometallic complexes, enabling high selectivity and stability for electrochemical hydrogen peroxide production under harsh acidic and peroxide‐rich ...
Guilherme V. Fortunato, Alexander Gunnarson, Hannaneh Hosseini, Xiangyu You, Pallabi Bhuyan, Ji Sik Choi, Hyo Sang Jeon, Xingshen Zhao, Julio C. Lourenço, Sumin Lim, Huize Wang, Ana Guilherme Buzanich, Martin Radtke, Paul Paciok, Marcos R.V. Lanza, Ferdi Schüth, Marc Ledendecker   +16 more
wiley   +1 more source

Ultrahigh‐Yield, Multifunctional, and High‐Performance Organic Memory for Seamless In‐Sensor Computing Operation

Advanced Functional Materials, EarlyView.
Molecular engineering of a nonconjugated radical polymer enables a significant enhancement of the glass transition temperature. The amorphous nature and tunability of the polymer, arising from its nonconjugated backbone, facilitates the fabrication of organic memristive devices with an exceptionally high yield (>95%), as well as substantial ...
Daeun Kim, Jaehyoung Ko, Namju Kim, Quynh H. Nguyen, Hoyeon Lee, Joohwan Eo, Seongeon Jin, Ji Eon Kwon, Seung‐Yeol Jeon, Youngdo Jeong, Dongseok Kwon, Sung Gap Im, Sanghan Lee, Byung Chul Jang, Yongho Joo   +14 more
wiley   +1 more source

Carbon Paste Electrode Incorporating 1-[4-(Ferrocenyl Ethynyl) Phenyl]-1-Ethanone for Voltammetric Determination of D-Penicillamine

International Journal of Electrochemical Science, 2007
Electrocatalytic oxidation of D-penicillamine (D-PA) at the surface of 1-[4-(ferrocenyl-ethynyl) phenyl]-1-ethanone modified carbon paste electrode (4-FEPEMCPE) was thoroughly investigated using cyclic voltammetry (CV) and double step potential ...
Jahan-Bakhsh Raoof, Reza Ojani, Fereshteh Chekin, R. Hossienzadeh   +3 more
doaj   +1 more source

Coordinated Multi‐Component Gradient Engineering of Catalyst Layers for Advanced Polymer Electrolyte Fuel Cells

Advanced Functional Materials, EarlyView.
This work presents a continuous linear gradient catalyst layer design, a general strategy for improving membrane electrode assemblies across electrochemical devices. Fabricated via a dual‐nozzle spray coating method, the architecture controls the Pt/carbon ratio, ionomer content and ionomer type across the catalyst layer, enhancing proton conduction ...
Shangwei Zhou, Matt P. Tudball, Yiming Guo, Bia Brandt, Adam Zucconi, Wenjia Du, Junfu Bu, Daniel H. C. Wan, Jianuo Chen, Emanuele Magliocca, Feng Ryan Wang, Alexander J.E. Rettie, Patrick S. Grant, Paul R. Shearing, Rhodri Jervis, Thomas S. Miller   +15 more
wiley   +1 more source

Catalytic Application of Gold Nanoparticles Electrodeposited by Fast Scan Cyclic Voltammetry to Glycerol Electrooxidation in Alkaline Electrolyte

International Journal of Electrochemical Science, 2011
A fast scan rate cyclic voltammetry was used to synthesis gold nanoparticles (AuNPs). AuNPs were electrodeposited on the surface of pencil graphite (PG) without using any additives in an acidic medium.
Mohammad Etesami, Norita Mohamed
doaj   +1 more source

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

Advanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou, Yu Mao, Mengyao Chang, Ziyun Wang, Wenke Xie, Cuizhu Ye, Shanghai Wei, Lars Thomsen, Geoffrey I. N. Waterhouse   +8 more
wiley   +1 more source

ELECTROCHEMICAL CHARACTERIZATION OF TWO OLEAMIDE ANALOGUES ANTI-OBESITY AGENTS

Studia Universitatis Babes-Bolyai Chemia, 2015
Electrochemical characterization of two oleamide analogues was performed by cyclic voltammetry, differential pulse voltammetry, and rotating disk electrode voltammetry.
Cătălina Elena NEGUŢ (CIOATEŞ), Eleonora-Mihaela UNGUREANU, Georgiana-Luiza ARNOLD, Constantin TĂNASE, Liviu BÎRZAN   +4 more
doaj