Results 271 to 280 of about 11,300,632 (342)

Tracking Electrocatalytic Activity of a Single Palladium Nanoparticle for Hydrogen Evolution Reaction.

Chemistry, 2021
The nanoparticle-based electrocatalysts' performance is directly related to the working conditions. In general, a number of nanoparticles are uncontrollably fixed on a millimetre-sized electrode for electrochemical measurements. However, it cannot reveal
Mengjie Chen, Si‐Min Lu, Yue‐Yi Peng, Zhifeng Ding, Yitao Long   +4 more
semanticscholar   +1 more source

Electrocatalytic Activity of Polyaniline in Magnesium–Sulfur Batteries

The Journal of Physical Chemistry Letters, 2022
Rechargeable magnesium-sulfur (Mg-S) batteries offer the potential for inexpensive energy storage alternatives to other metal-ion batteries for the grid scale and household applications. Despite all economic and resource advantages, Mg-S battery chemistry suffers from a complicated reaction mechanism and extremely slow reaction kinetics. To improve the
Murali Krishna, Arnab Ghosh, Divyamahalakshmi Muthuraj, Sharmistha Das, Sagar Mitra   +4 more
openaire   +2 more sources

Surface geometry and electrocatalytic activity

Materials Chemistry and Physics, 1989
Abstract The theory of electrode reaction was completed some thirty years ago for the hydrogen evolution reaction of reaction type A plus A going to A 2 on pure metals whose surface is composed of single atomic species. However, that for the hydrogen evolution reaction on surfaces composed of two atomic species as well as that for reaction of the ...
S. Motoo, N. Furuya
openaire   +1 more source

Dimensionality Control of Electrocatalytic Activity in Perovskite Nickelates

Nano Letters, 2020
The dimensionality of the crystal structure plays an important role in the electronic structures of materials. Ruddlesden-Popper perovskite oxides offer an attractive platform for studying this role due to dimensional flexibility. The effects of dimensionality on physical properties in those oxides have been widely reported.
Cong Cao, Chunyan Shang, Xu Li, Yinyin Wang, Chunxiao Liu, Xinyi Wang, Shiming Zhou, Jie Zeng   +7 more
openaire   +2 more sources

Electrocatalytic activity of core/shell magnetic nanocomposite

Analytical Biochemistry, 2014
Electrically active magnetic nanocomposites (EAMNCs), Au nanoparticles/self-doped polyaniline@Fe3O4 (AuNPs/SPAN@Fe3O4) with well-defined core/shell structure, were first synthesized by a simple method. The morphology and composition of the as-synthesized AuNPs/SPAN@Fe3O4 nanocomposite have been characterized by transmission electron microscopy (TEM ...
Rong, Tian, Xiaojun, Chen, Xiaolong, Xu, Cheng, Yao   +3 more
openaire   +2 more sources

Engineered spin state in Ce doped LaCoO3 with enhanced electrocatalytic activity for rechargeable Zn-Air batteries

, 2020
Simultaneously engineering the eg electron filling and increasing the intrinsic conductivity is the bottleneck problem in improving the oxygen electrocatalysis of LaCoO3-based electrocatalysts.
Jinmei Qian, Tongtong Wang, Zhengmei Zhang, Yonggang Liu, Junfu Li, D. Gao   +5 more
semanticscholar   +1 more source

Electrocatalytic activity of self-doped polyaniline

Electrochimica Acta, 2012
Self-doped conducting polyaniline-modified indium tin oxide (ITO) electrodes were prepared by cyclic voltammetry on ITO substrates in aniline (AN) and o-aminobenzene sulfonic acid (OSA) mixed monomer solutions with AN/OSA mole ratios of 25/75, 50/50, and 75/25, followed by investigations on electrocatalytic activities of the copolymers to redox ...
Yeong-Tarng Shieh, Jeng-Ji Jung, Rong-Hsien Lin, Chien-Hsin Yang, Tzong-Liu Wang   +4 more
openaire   +1 more source

Electrocatalytic Oxygen Evolution with an Immobilized TAML Activator

Journal of the American Chemical Society, 2014
Iron complexes of tetra-amido macrocyclic ligands are important members of the suite of oxidation catalysts known as TAML activators. TAML activators are known to be fast homogeneous water oxidation (WO) catalysts, producing oxygen in the presence of chemical oxidants, e.g., ceric ammonium nitrate.
Ethan L, Demeter, Shayna L, Hilburg, Newell R, Washburn, Terrence J, Collins, John R, Kitchin   +4 more
openaire   +2 more sources

Enhancing the Electrocatalytic Activity of Pd/M (M = Ni, Mn) Nanoparticles for the Oxygen Reduction Reaction in Alkaline Media through Electrochemical Dealloying

ACS Catalysis, 2020
We have developed a facile and effective electrochemical dealloying strategy to enhance the electrocatalytic activity of Pd-M (M = Ni, Mn) nanoparticles for the oxygen reduction reaction (ORR) in a...
Xinyao Lu, M. Ahmadi, F. Disalvo, H. Abruña   +3 more
semanticscholar   +1 more source

An integral metric for evaluating electrocatalytic activity

Chemija
This study introduces an integral metric of electrocatalytic activity, which is based on the comparison of the area under the polarisation curve in current density vs overpotential coordinates over a specific chosen overpotential range.
V. Protsenko, D. Makhota
semanticscholar   +1 more source