Results 81 to 90 of about 26,197 (212)

Characterization of cerium oxide nanoparticles—Part 1: Size measurements

Environmental Toxicology and Chemistry, 2012
Abstract The present study gives an overview of some of the major aspects for consideration in the characterization of nanomaterials (NMs). Part 1 focuses on the measurement of particle size and size-related parameters using several analytical techniques such as transmission electron microscopy, atomic force microscopy, dynamic light ...
Baalousha, M, Ju-Nam, Y, Cole, PA, Gaiser, B, Fernandes, TF, Hriljac, JA, Jepson, MA, Stone, V, Tyler, CR, Lead, JR   +9 more
openaire   +4 more sources

Regulating Interfacial Hydrogen‐Bonding Connectivity by Oxygen Vacancies‐Driven [Fe(CN)6]3− Coordination for Boosting Hydrogen Peroxide Electrosynthesis

Carbon Energy, EarlyView.
ABSTRACT The inherent hydroxide‐rich (OH⁻) environment in alkaline media facilitates the two‐electron oxygen reduction reaction (2e−ORR). However, the strong interaction between alkali metal cations and solvated water molecules significantly reduces the connectivity of the hydrogen bond network within the alkaline electric double layer, thereby ...
Kaiming Li, Ben Huang, Aihao Xu, Kai Nie, Xianhai Bai, Qian Ning, Guodong Wang, Shiming Qiu, Huibing He, Yang Ren, Jing Xu, Xucai Yin   +11 more
wiley   +1 more source

Multiple Active Sites Engineering in Cu/γ‐Al2O3 Catalyst Enables Selective Electrocatalytic CO2 Reduction to Methane at High Rates

Carbon Energy, EarlyView.
A multi‐site heterogeneous electrocatalyst is designed, composed of Cu nanoclusters supported on γ‐Al2O3. Within this system, CO2 activation, H2O dissociation, and *CO protonation are respectively governed by the Cu sites, γ‐Al2O3 sites, and the Cu/γ‐Al2O3 interface sites.
Xiangke Zeng, Jieshu Zhou, Yi Liu, Yunfei Zhi, Li Wang, Hongying Su, Xintao Zhou, Yongming Luo, Shaoyun Shan, Kaili Yao, Jun Li   +10 more
wiley   +1 more source

Cerium Oxide Nanoparticles Role as Antioxidant

Medical Journal of Babylon
Abstract Cerium oxide nanoparticles (NPs), also known as ceria NPs, are particles of cerium oxide with sizes in the nanometer range. Cerium oxide (CeO2) is a compound composed of cerium and oxygen, and when it is reduced to NPs, it exhibits unique properties and applications. Cerium oxide NPs possess excellent catalytic properties.
openaire   +2 more sources

A study of Ni‐Co/CeO2 catalyst derived from metal–organic framework for dry reforming of methane

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The efficacy of cobalt‐doped, MOF‐derived catalysts for dry reforming of methane (DRM) was examined. The focus was on the influence of varying nickel and cobalt molar ratios on catalytic performance. Three catalysts with Ni:Co ratios of 1:1, 1:0.5, and 0.5:1, were synthesized and tested with cerium oxide as a constant support. The DRM reaction
Ruth D. Alli, Nader Mahinpey
wiley   +1 more source

Revisiting the synthesis of dimethyl carbonate from methanol and carbon dioxide

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The process for producing dimethyl carbonate (DMC) from carbon dioxide (CO2) and methanol is explored in this article. It provides an overview of the thermodynamics involved in DMC synthesis, discussing the challenges and potential solutions. The article highlights the reported use of catalysts and dehydrating agents to improve DMC yield and ...
Diego Alexander Santos Araque, Niloofar Mozaffari, Louis Fradette, Serge Kaliaguine   +3 more
wiley   +1 more source

CeO2/Co3O4 p‐n Heterojunction as a Photo‐Responsive Bifunctional Electrocatalyst for Efficient Zinc‐Air Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A photo‐responsive bifunctional electrocatalyst with CeO2/Co3O4 p‐n heterojunction has been designed and exhibited excellent photo‐enhanced ORR/OER performance and Zn‐air batteries performance. The introduction of semiconductor materials as bifunctional oxygen reduction/evolution reaction (ORR/OER) electrodes has been proved as an efficient way to ...
Yuling Liu, Taotao Zeng, Chenyu Zhang, Zhanglong He, Mingqing Zuo, Hao He, Zeyan Zhou, Lei Han   +7 more
wiley   +1 more source

Cerium oxide nanoparticles

Oxidative stress induced by the overproduction of free radicals or reactive oxygen species (ROS) has been considered as a key pathogenic mechanism contributing to the initiation and progression of injury in liver diseases. Consequently, during the last few years antioxidant substances, such as superoxide dismutase (SOD), resveratrol, colchicine ...
Casals, Gregori||, Perramón, Meritxell||, Casals, Eudald||, Portolés, Irene, Fernández-Varo, Guillermo||, Morales Ruiz, Manuel||, Puntes, Víctor||, Jiménez, Wladimiro||   +7 more
openaire   +1 more source

Rational design of Ni‐based catalysts for methane dry reforming: Recent advances and future perspectives

FlexMat, EarlyView.
Addressing the challenges inherent in dry reforming of methane (DRM), this paper focuses on the structural design and performance optimization of Ni‐based catalysts. The modulation strategies for DRM are systematically reviewed across four dimensions: the micromorphology of active metals, metal‐support interactions, electronic modifications by ...
Bowei Cao, Junlei Zhang, Wanglei Wang
wiley   +1 more source

Emerging Perovskite Solar Cells for Building‐Integrated Photovoltaic Applications

Information &Functional Materials, EarlyView.
In this review, we discuss technological approaches of perovskite solar cells that are highly compatible with the requirements of building‐integrated photovoltaic applications, including semi‐transparent, colorful, and flexible perovskite solar cells.
Yongke Liang, Jiawei Xu, Hanlin Guo, Binghan Li, Zhifang Shi   +4 more
wiley   +1 more source