Copper Oxide Nanograss for Efficient and Stable Photoelectrochemical Hydrogen Production by Water Splitting

Enhancing water splitting via weakening H2 and O2 adsorption on NiCo-LDH@CdS due to interstitial nitrogen doping: A close look at the mechanism of electron transfer

“…Increased use of fossil fuels has fueled much interest in the study and development of sustainable and clean energy resources to fulfill energy requirements [1,2]. A clean, renewable, and efficient source of energy is hydrogen [3][4][5][6]. Water splitting is generally composed of the two half-reactions of oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) [7][8][9].…”

“…Water splitting is generally composed of the two half-reactions of oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) [7][8][9]. There have been many attempts to develop inexpensive and highly efficient electrocatalysts with dual OER/HER capabilities for use in scalable organic syntheses and integrated devices that consume hydrogen [4,5].…”

One-step synthesis of novel Cu2ZnNiO3 complex oxide nanowires with tuned band gap for photoelectrochemical water splitting

“…One excellent carbon-free fuel is hydrogen. Much effort has been put into development of methods to separate hydrogen from compounds such as water, hydrocarbons and other organic compounds (Borkar et al, 2018). Since water is the most abundant source of hydrogen, hydrogen production via water splitting, via techniques such as water electrolysis (Shiva Kumar & Himabindu, 2019), thermochemical water splitting (Papathomas & Gorea, 1990), photoelectrochemical (PEC) water splitting (Bu & Ao, 2017) and photobiological methods (Larroche et al, 1975), has been widely studied.…”

“…Unfortunately, there is no single material able to meet all of the aforementioned criteria simultaneously. Furthermore, the reported efficiencies of existing electrode materials are low and unable to compete commercially with other hydrogen generation methods (Borkar et al, 2018). For instance, platinum (Pt) is an excellent catalyst for hydrogen evolution reaction, but Pt is rather rare and expensive.…”

“…For instance, solar energy is one of the dynamic solutions for sustainability goals (Joy et al, 2018). Yet, current methods of solar energy utilization on a wide scale are unable to provide a sustainable and affordable power supply for everyday needs (Borkar et al, 2018). One excellent carbon-free fuel is hydrogen.…”