Results 61 to 70 of about 53,090 (285)

The Influence of Annealing on the Sb Layer in the Synthesis of [001]‐Oriented Sb2Se3 Film for Photoelectrochemical Hydrogen Gas Generation

Advanced Functional Materials, EarlyView.
[001]‐oriented Sb2Se3 film with improved crystallinity and adjusted composition is achieved via a new thermal treatment approach consisting of preliminary annealing of the Sb layer before its selenization. The findings of this work demonstrate enhanced charge carriers' transportation, a stable performance, and an improvement of H2 generation from ...
Magno B. Costa, Moisés A. de Araújo, Joaquim Puigdollers, Pablo Ortega, Teresa Andreu, Cristobal Voz, Edgardo Saucedo, Lucia H. Mascaro   +7 more
wiley   +1 more source

Electrochemical alcohol oxidation reaction on Precious‐Metal‐Free catalysts: Mechanism, activity, and selectivity

Carbon Neutralization
The electrochemical alcohol oxidation reaction (AOR) is pivotal for the development of sustainable energy. The complete oxidation of alcohols has attracted extensive attention as a vital process in fuel cells.
Jiawei Shi, Jun Ma, Enze Ma, Jing Li, Yang Hu, Liyuan Fan, Weiwei Cai   +6 more
doaj   +1 more source

Electrocatalytic degradation of reactive blue 49 on Pt, Au, and carbon felt: Influence of operating parameters

Results in Chemistry
The problem of pollution of surface water by dyes discharged by various industries is a serious environmental issue. However, electrochemical oxidation is emerging as a promising alternative for water treatment.
Fatima Zaaboul, Ghizlan Kaichouh, Abdelaali Balahbib, Khang Wen Goh, Abdelhakim Bouyahya, Abderrahim El Hourch   +5 more
doaj   +1 more source

Pd Nanoparticles Supported on Tungsten Carbide Embedded onto Ordered Mesoporous Carbons for Electrocatalysis of Formic Acid Oxidation

International Journal of Electrochemical Science, 2013
In this work, tungsten carbide (WC) embedded onto ordered mesoporous carbons (OMCs) is used as the support of Pd nanoparticles for electrocatalytic oxidation of formic acid. The WC loaded OMCs was prepared via a hard template route. Pd nanoparticles were
Liangliang Zou, Mingjun Ren, Haifeng Zhang, Zhiqing Zou, Hui Yang, Songlin Feng   +5 more
doaj   +1 more source

Inflating hollow nanocrystals through a repeated Kirkendall cavitation process. [PDF]

, 2017
The Kirkendall effect has been recently used to produce hollow nanostructures by taking advantage of the different diffusion rates of species involved in the chemical transformations of nanoscale objects.
Cao, Zhenming, Jin, Mingshang, Kuang, Qin, Shan, Zhiwei, Tianou, He, Wang, Weicong, Wang, Zhao, Yang, Xiaolong, Yin, Yadong   +8 more
core   +3 more sources

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

Advanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian, Jingkai Lin, Zhihao Tian, Selusiwe Ncube, Huayang Zhang, Emiliano Cortés, Hongqi Sun, Shaobin Wang   +7 more
wiley   +1 more source

The Effect of Deep Cryogenic Treatment on the Electrocatalytic Performance of a Pd@CFs Catalyst for Methanol Oxidation

Nanomaterials
To enhance the electrocatalytic performance of a flexible Pd@CFs catalyst for methanol oxidation, deep cryogenic treatment in liquid nitrogen was introduced.
Chenxing Wang, Jiahui Mo, Haoting Wang, Jia Liu, Gege He, Xinhai He, Yanyan Song   +6 more
doaj   +1 more source

The influence of the preparation method of NiOx photocathodes on the efficiency of p-type dye-sensitised solar cells [PDF]

, 2015
Improving the efficiency of p-type dye-sensitized solar cells (DSCs) is an important part of the development of high performance tandem DSCs. The optimization of the conversion efficiency of p-DSCs could make a considerable contribution in the ...
Dini, Danilo, Gibson, E. A., Halpin, Y., Vos, J. G.   +3 more
core   +1 more source

Switching on electrocatalytic activity in solid oxide cells [PDF]

Nature, 2016
Solid oxide cells (SOCs) can operate with high efficiency in two ways-as fuel cells, oxidizing a fuel to produce electricity, and as electrolysis cells, electrolysing water to produce hydrogen and oxygen gases. Ideally, SOCs should perform well, be durable and be inexpensive, but there are often competitive tensions, meaning that, for example ...
Myung, Jae-ha, Neagu, Dragos, Miller, David N., Irvine, John T.S.   +3 more
openaire   +5 more sources

Exploiting the Functionality of Cerium Oxide‐Modified Carbon Nanohorns Catalysts Toward Enhanced CO2 Reduction Performance

Advanced Functional Materials, EarlyView.
A cerium oxide‐carbon nanohybrid catalyst is synthesized via two distinct routes and is integrated into H‐type cells and gas diffusion layers (GDLs) to enhance electrochemical performance. Structural variations significantly affect performance, with the solvothermal sample exhibiting higher current densities.
Alessia Pollice, Michele Cacioppo, Miriam Marchi, Miriam Moro, Francesco Paolucci, Marcella Bonchio, Maurizio Prato, Giovanni Valenti, Michele Melchionna, Paolo Fornasiero   +9 more
wiley   +1 more source