Results 241 to 250 of about 65,056 (295)

Electrochemical potential tuned solar water splitting

Chemical Communications, 2003
As a fundamental step towards a clean, renewable source of H2, a novel physical chemical process within molten NaOH in which an external single, small bad gap photosentizer, such as Si, can drive the energetics of water cleavage is demonstrated, and is accomplished by tuning (decreasing) the water splitting electrochemical potential, EH2O, rather than ...
Stuart, Licht, Leonid, Halperin, Michael, Kalina, Martina, Zidman, Nadezhda, Halperin   +4 more
openaire   +2 more sources

Impact of Surface Hydrophilicity on Electrochemical Water Splitting

ACS Applied Materials & Interfaces, 2021
The activity of electrocatalysts can be improved by modifying their electronic structures and surface morphologies. In electrochemical reactions with gas evolution, the performance of an electrocatalyst is also affected by how easily gas bubbles depart from an electrocatalyst surface.
Byung Keun Kim, Myung Jun Kim, Jae Jeong Kim   +2 more
openaire   +2 more sources

Nanomaterials for photo-electrochemical water splitting: a review

Environmental Science and Pollution Research, 2023
Over the last few decades, the global rise in energy demand has prompted researchers to investigate the energy requirements from alternative green fuels apart from the conventional fossil fuels, due to the surge in CO2 emission levels. In this context, the global demand for hydrogen is anticipated to extend by 4-5% in the next 5 years.
Vivek, Dhiman, Sandeep, Singh, Varsha, Srivastava, Sangeeta, Garg, Amit D, Saran   +4 more
openaire   +2 more sources

Electrochemical Water-Splitting Based on Hypochlorite Oxidation

Journal of the American Chemical Society, 2015
Effective catalytic water-splitting can be electrochemically triggered in an alkaline solution of sodium hypochlorite. Hypochlorite oxidation on polycrystalline platinum yields ClO· radicals, which initiate a radical-assisted water-splitting, yielding oxygen, hydrogen peroxide, and protons.
Minhová Macounová, K. (Kateřina), Simic, N., Ahlberg, E., Krtil, P. (Petr)   +3 more
openaire   +3 more sources

3D Printing for Electrochemical Water Splitting

2023
Additive manufacturing (or 3D printing) has been increasingly employed for energy conversion and storage applications. Although it is still in the early stage of research and development, the utilization of 3D printing for electrochemical water splitting applications has gained significant interest.
Lee, Chong Yong, Wallace, Gordon G.
openaire   +2 more sources

Water Splitting Using Electrochemical Approach

2016
For electrochemical water splitting, a number of bioinspired and biomimetic Mn-based materials have been developed; however, the catalytic performances markedly differ between natural and synthetic Mn catalysts. Based on the recent in situ detection of surface intermediates for the oxygen evolution reaction (OER) by MnO2, this chapter introduces the ...
Akira Yamaguchi, Toshihiro Takashima, Kazuhito Hashimoto, Ryuhei Nakamura   +3 more
openaire   +1 more source

Multifunctional materials for photo-electrochemical water splitting

Journal of Materials Chemistry A, 2022
The rise in world pollution and energy demand has aggravated the energy crisis and depletion of non-renewable energy resources. Here, we review multifunctional materials that can be used for photoelectrochemical water splitting for clean energy production.
P. Mary Rajaitha, Sugato Hajra, Krystian Mistewicz, Swati Panda, Manisha Sahu, Deepak Dubal, Yusuke Yamauchi, Hoe Joon Kim   +7 more
openaire   +2 more sources

The Electrochemical Splitting of Water

1983
The electrochemical production of hydrogen as an energy medium is becoming economically feasible. The technology is established; it is clean and requires no extra separation or purification of products; it generates suitable pressures for storage and can be used in a modular mode.
F. Gutmann, Oliver J. Murphy
openaire   +1 more source

Comparing Electrochemical and Biological Water Splitting

The Journal of Physical Chemistry C, 2007
On the basis of density functional theory calculations, we compare the free energies of key intermediates in the water splitting reaction over transition metal oxide surfaces to those of the Mn cluster in photo system II. In spite of the very different environments in the enzyme system and on the inorganic catalyst surface of an acidic electrolysis ...
J. Rossmeisl, K. Dimitrievski, P. Siegbahn, J. K. Nørskov   +3 more
openaire   +1 more source

Iridium-based nanomaterials for electrochemical water splitting

Nano Energy, 2020
Abstract Electrochemical water splitting is an appealing technology to produce high-purity hydrogen as a clean and sustainable energy carrier. The efficiency of water splitting largely depends on the intrinsic activity, selectivity, and stability of the electrocatalysts.
Zhijie Chen, Xiaoguang Duan, Wei Wei, Shaobin Wang, Bing-Jie Ni   +4 more
openaire   +2 more sources