Efficient electrocatalytic oxygen reduction over metal free-nitrogen doped carbon nanocapsules.

Chem Commun (Camb)

School of Advanced Science and Engineering, Waseda University, Tokyo 169-8555, Japan.

Published: April 2011

Nitrogen doped carbon nanocapsules (NCNCs) were synthesized as a non-noble electrocatalyst for the ORR using a simple and efficient route. The NCNCs exhibited higher activity than the commercial Pt/C catalyst, excellent stability, and resistance to methanol oxidation in the oxygen reduction reaction.

Download full-text PDF

Source
http://dx.doi.org/10.1039/c1cc10361jDOI Listing

Publication Analysis

Top Keywords

oxygen reduction
8
doped carbon
8
carbon nanocapsules
8
efficient electrocatalytic
4
electrocatalytic oxygen
4
reduction metal
4
metal free-nitrogen
4
free-nitrogen doped
4
nanocapsules nitrogen
4
nitrogen doped
4

Similar Publications

Electrochemical nitrate reduction (NORR) to ammonia presents a promising alternative strategy to the traditional Haber-Bosch process. However, the competitive hydrogen evolution reaction (HER) reduces the Faradaic efficiency toward ammonia, while the oxygen evolution reaction (OER) increases the energy consumption. This study designs IrCu alloy nanoparticles as a bifunctional catalyst to achieve efficient NORR and OER while suppressing the unwanted HER.

View Article and Find Full Text PDF

Introduction: To evaluate the effectiveness of noninvasive positive pressure ventilation (NPPV) versus standard therapy in severe asthma exacerbations through meta-analysis.

Methods: Nine randomized controlled trials (344 patients) were analyzed from inception to August 2024. Primary outcomes included respiratory rate, forced expiratory volume in first second (FEV1), and oxygen saturation (SpO2).

View Article and Find Full Text PDF

Molecular Mechanism of N-Acetylcysteine Regulating Proliferation and Hormone Secretion of Granulosa Cells in Sheep.

Reprod Domest Anim

January 2025

Tianzhu County Animal Husbandry Technology Extension Station, Tianzhu, Gansu, China.

Granulosa cells (GCs) are pivotal in the development of ovarian follicles, serving not only as supportive cells but also as the primary producers of steroid hormones. The proliferation of these cells and the synthesis of steroid hormones are crucial for follicular development and atresia. In our study, GCs were isolated using follicular fluid aspiration and subsequently identified through immunofluorescence.

View Article and Find Full Text PDF

Leaf Photosynthetic and Respiratory Thermal Acclimation in Terrestrial Plants in Response to Warming: A Global Synthesis.

Glob Chang Biol

January 2025

Key Laboratory of National Forestry and Grassland Administration on Forest Ecosystem Protection and Restoration of Poyang Lake Watershed, College of Forestry, Jiangxi Agricultural University, Nanchang, China.

Leaf photosynthesis and respiration are two of the largest carbon fluxes between the atmosphere and biosphere. Although experiments examining the warming effects on photosynthetic and respiratory thermal acclimation have been widely conducted, the sensitivity of various ecosystem and vegetation types to warming remains uncertain. Here we conducted a meta-analysis on experimental observations of thermal acclimation worldwide.

View Article and Find Full Text PDF

Polyphenols as a strategy for improving male reproductive system.

Mol Biol Rep

January 2025

Center for Environmental and Human Toxicology, Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA.

Reproduction in males is one of the complicated processes that is mediated by many environmental factors, as well as by diet (e.g. supplements, nutritional value).

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!