نتایج جستجو برای: electrocatalysis

تعداد نتایج: 1588  

Journal: :Journal of the American Chemical Society 2013
Ariel Furst Sally Landefeld Michael G Hill Jacqueline K Barton

We report a novel method of DNA array formation that is electrochemically formed and addressed with a two-electrode platform. Electrochemical activation of a copper catalyst, patterned with one electrode, enables precise placement of multiple sequences of DNA onto a second electrode surface. The two-electrode patterning and detection platform allows for both spatial resolution of the patterned ...

2009
Rong Kou Yuyan Shao Donghai Wang Mark H. Engelhard Ja Hun Kwak Jun Wang Vilayanur V. Viswanathan Chongmin Wang Yuehe Lin Yong Wang Ilhan A. Aksay Jun Liu

Electrocatalysis of oxygen reduction using Pt nanoparticles supported on functionalized graphene sheets (FGSs) was studied. FGSs were prepared by thermal expansion of graphite oxide. Pt nanoparticles with average diameter of 2 nm were uniformly loaded on FGSs by impregnation methods. Pt-FGS showed a higher electrochemical surface area and oxygen reduction activity with improved stability as com...

Journal: :Chemical science 2015
Andrew G Walden Alexander J M Miller

The tris(2-pyridyl)phosphine oxide (Py3PO) complex [Ru(Py3PO)(bpy)(OH2)]2+ (bpy is 2,2'-bipyridine) is a pH-dependent water oxidation electrocatalyst that accelerates dramatically with increasing pH-up to 780 s-1 at pH 10 (∼1 V overpotential). Despite retaining the pentakis(pyridine) ligand arrangement common to previously reported catalysts, the tripodal Py3PO ligand framework supports much fa...

Journal: :Physical chemistry chemical physics : PCCP 2013
Richard L Doyle Ian J Godwin Michael P Brandon Michael E G Lyons

This paper presents a review of the redox and electrocatalytic properties of transition metal oxide electrodes, paying particular attention to the oxygen evolution reaction. Metal oxide materials may be prepared using a variety of methods, resulting in a diverse range of redox and electrocatalytic properties. Here we describe the most common synthetic routes and the important factors relevant t...

Journal: :Chinese Journal of Catalysis 2022

As the green and sustainable development of human society highly relies on renewable energy, it has been recognized that electrocatalysis is a key technology to this end. High efficient ways carbon-neutralization (eCO2RR), reverse artificial nitrogen cycle (RANC), oxygen chemistry (OER ORR) all can be driven by electrocatalysis. Advanced theoretical study an important means fundamentally unders...

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