Waste-derived catalysts for water electrolysis: circular economy-driven sustainable green hydrogen energy

Z Chen, S Yun, L Wu, J Zhang, X Shi, W Wei, Y Liu… - Nano-Micro Letters, 2023 - Springer
The sustainable production of green hydrogen via water electrolysis necessitates cost-
effective electrocatalysts. By following the circular economy principle, the utilization of waste …

All-solid-state, self-powered supercapacitors: state-of-the-art and future perspectives

DM Sayed, NK Allam - Journal of Energy Storage, 2022 - Elsevier
Our response to the current ecological crisis assesses the human future. COVID-19
pandemic clearly shows how critical the energy access is for health care services. This …

Selective electrochemical reduction of CO2 on compositionally variant bimetallic Cu–Zn electrocatalysts derived from scrap brass alloys

IM Badawy, AM Ismail, GE Khedr, MM Taha… - Scientific Reports, 2022 - nature.com
The electrocatalytic reduction of carbon dioxide (CO2RR) into value-added fuels is a
promising initiative to overcome the adverse effects of CO2 on climate change. Most …

Highly durable compositionally variant bifunctional tetrametallic Ni–Co–Mn–Fe phosphide electrocatalysts synthesized by a facile electrodeposition method for high …

MM Hasan, AK Gomaa, GE Khedr, KE Salem… - Energy & …, 2022 - ACS Publications
In the recent few decades, the demand for green sources of energy that are clean and
sustainable became very essential to reduce the greenhouse and global warming problems …

Electronically defective tellurium-doped TiO2 catalysts for enhanced photoelectrochemical water splitting

SM Fawzy, GE Khedr, NK Allam - International Journal of Hydrogen Energy, 2023 - Elsevier
Density functional theory (DFT) was employed to explore the effect of Tellurium
substitutional (Te Ti) doping in titanium dioxide (TiO 2). The incorporation of Te was found to …

Stainless steel mesh-based CoSe/Ni3Se4 heterostructure for efficient electrocatalytic overall water splitting

H Zhou, D Zhang, W Dong, C Zhou, T Jiang… - International Journal of …, 2023 - Elsevier
The construction of high-efficiency bifunctional electrocatalysts is still a main challenge for
hydrogen production from water splitting, in which comprehensive structure regulation plays …

New reaction path for long-chain hydrocarbons by electrochemical CO2 and CO reduction over Au/stainless steel

SY Hwang, JY Maeng, GE Park, SY Yang, SY Kim… - Chemosphere, 2023 - Elsevier
Abstract The Fischer-Tropsch (FT) synthesis is recognized for its ability to produce long-
chain hydrocarbons. In this study, we aimed to replicate FT synthesis using electrochemical …

Intermolecular electron transfer in electrochemically exfoliated BCN-Cu nanosheet electrocatalysts for efficient hydrogen evolution

MM Hasan, GE Khedr, F Zakaria… - ACS Applied Energy …, 2022 - ACS Publications
The search for materials with superior electrocatalytic performance has attracted attention
during the past few years aiming to identify a convenient material that works at a low …

Optimized Synthesis of Nanostructured Trimetallic Mn–V–Fe Selenides with Battery-Type Behavior for High-Performance Hybrid Supercapacitors

SA Teama, HM El Sharkawy, NK Allam - Energy & Fuels, 2023 - ACS Publications
The design and synthesis of innovative materials with a specific architecture are necessary
to advance the supercapacitor industry. Recently, transition metal selenides have been …

C76 Nanospheres/Ni Foam as High-Performance Heterostructured Electrocatalysts for Hydrogen Evolution Reaction: Unveiling the Interfacial Interaction

MM Hasan, GE Khedr, NK Allam - ACS Applied Nano Materials, 2022 - ACS Publications
Fullerenes have emerged as functional catalytic nanomaterials in a plethora of applications,
mainly due to their distinctive electronic structures. Therefore, we investigated the electronic …