Efficient photoelectrochemical water oxidation and electrochemical supercapacitor performance of ZnAl2O4 hexagonal microstructures

Article Environmental Sciences

Effect of annealing environment on the photoelectrochemical water oxidation and electrochemical supercapacitor performance of SnO2 quantum dots

Bathula Babu et al.

Summary: The nitrogen-annealing environment significantly improves the electrochemical performance of SnO2 quantum dots, leading to higher specific capacitance and photocurrent compared to pristine samples.

CHEMOSPHERE (2022)

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Article Chemistry, Multidisciplinary

Rational Design of Metal Oxide-Based Heterostructure for Efficient Photocatalytic and Photoelectrochemical Systems

Chengkai Xia et al.

Summary: The research focuses on the rational design of metal oxide heterostructures to enhance photo-to-chemical energy conversion efficiency using photocatalytic and photoelectrochemical systems. Strategies to improve conversion efficiency include surface modification, surface regulation, and interfacial assembly with various materials. The underlying reaction mechanisms and challenges in developing metal oxide-based heterostructures for photo-to-chemical devices are also discussed.

ADVANCED FUNCTIONAL MATERIALS (2021)

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Review Engineering, Environmental

0D to 3D carbon-based networks combined with pseudocapacitive electrode material for high energy density supercapacitor: A review

Sachin Kumar et al.

Summary: Supercapacitors are reliable energy storage devices, but face limitations such as low capacitance and energy density. Carbon based nanocomposites have been extensively studied for their excellent properties. Developing high energy density supercapacitor devices remains a challenge despite advancements in research.

CHEMICAL ENGINEERING JOURNAL (2021)

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Article Green & Sustainable Science & Technology

Recent progress in material selection and device designs for photoelectrochemical water-splitting

I. R. Hamdani et al.

Summary: This review focuses on the fundamentals, recent progress, challenges, and possible strategies of solar hydrogen production through photoelectrochemical watersplitting technology, aiming to make it a practically feasible option to address the energy crisis and rising demands.

RENEWABLE & SUSTAINABLE ENERGY REVIEWS (2021)

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Article Chemistry, Physical

Electronic structure and optical properties of spinel structure Zn1-xNixAl2O4 nanopowders synthesized by sol-gel method

Qiang Lu et al.

Summary: Zn1-xNixAl2O4 nanoparticles were synthesized using the sol-gel technique, and the band structure of defects in the ZnAl2O4 structure was calculated using first-principles method. Ni ions successfully substitute for Zn2+ lattice sites, occupying mainly tetrahedral sites and introducing new energy levels, resulting in reduced photoluminescence intensity and a redshift in bandgap with increasing Ni ion concentration.

CHEMICAL PHYSICS LETTERS (2021)

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Article Materials Science, Ceramics