Fueling the future: A comprehensive review of hydrogen energy systems and their challenges

International Journal of Hydrogen Energy, Journal Year: 2023, Volume and Issue: 54, P. 791 - 816

Published: Aug. 19, 2023

Language: Английский

---

Bifunctional Electrocatalysts for Overall and Hybrid Water Splitting

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(7), P. 3694 - 3812

Published: March 22, 2024

Electrocatalytic water splitting driven by renewable electricity has been recognized as a promising approach for green hydrogen production. Different from conventional strategies in developing electrocatalysts the two half-reactions of (e.g., and oxygen evolution reactions, HER OER) separately, there growing interest designing bifunctional electrocatalysts, which are able to catalyze both OER. In addition, considering high overpotentials required OER while limited value produced oxygen, is another rapidly exploring alternative oxidation reactions replace hybrid toward energy-efficient generation. This Review begins with an introduction on fundamental aspects splitting, followed thorough discussion various physicochemical characterization techniques that frequently employed probing active sites, emphasis reconstruction during redox electrolysis. The design, synthesis, performance diverse based noble metals, nonprecious metal-free nanocarbons, overall acidic alkaline electrolytes, thoroughly summarized compared. Next, their application also presented, wherein anodic include sacrificing agents oxidation, pollutants oxidative degradation, organics upgrading. Finally, concise statement current challenges future opportunities presented hope guiding endeavors quest sustainable

Language: Английский

---

Water electrolysis for hydrogen production: from hybrid systems to self-powered/catalyzed devices

Energy & Environmental Science, Journal Year: 2023, Volume and Issue: 17(1), P. 49 - 113

Published: Nov. 7, 2023

This perspective highlights recent advancements in innovative strategies to provide valuable insights into the potential for energy-saving hydrogen production through water electrolysis.

Language: Английский

---

Emerging materials and technologies for electrocatalytic seawater splitting

Science Advances, Journal Year: 2023, Volume and Issue: 9(42)

Published: Oct. 18, 2023

The limited availability of freshwater in renewable energy-rich areas has led to the exploration seawater electrolysis for green hydrogen production. However, complex composition presents substantial challenges such as electrode corrosion and electrolyzer failure, calling into question technological economic feasibility direct splitting. Despite many efforts, a comprehensive overview analysis electrolysis, including electrochemical fundamentals, materials, technologies recent breakthroughs, is still lacking. In this review, we systematically examine advances electrocatalytic splitting critically evaluate obstacles optimizing water supply, devices stable production from seawater. We demonstrate that robust materials innovative technologies, especially selective catalysts high-performance devices, are critical efficient electrolysis. then outline discuss future directions could advance techno-economic emerging field, providing roadmap toward design commercialization can enable efficient, cost-effective, sustainable

Language: Английский

---

Progress and Perspectives for Solar‐Driven Water Electrolysis to Produce Green Hydrogen

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(16)

Published: March 9, 2023

Abstract Solar‐driven water electrolysis has been considered to be a promising route produce green hydrogen, because the conventional system is not completely renewable as it requires power from nonrenewable fossil fuel sources. This review emphasizes strategies for solar‐driven electrolysis, including construction of photovoltaic (PV)‐water electrolyzer systems, PV‐rechargeable energy storage device‐water systems with solar sole input energy, and photoelectrochemical splitting systems. The basic discussions above are first presented. Meanwhile, replacing oxygen evolution reaction electrooxidation organic compounds can effectively improve efficiency splitting. Also, seawater greatly broadens practical applications due abundant reserves seawater. Recent years have witnessed great development in field electrolysis. recent research area subsequently reviewed. Finally, perspectives on existing challenges along some opportunities further provided.

Language: Английский

---

Dual hydrogen production from electrocatalytic water reduction coupled with formaldehyde oxidation via a copper-silver electrocatalyst

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Jan. 31, 2023

The broad employment of water electrolysis for hydrogen (H

Language: Английский

---

Recent Advancements in Electrochemical Hydrogen Production via Hybrid Water Splitting

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(4)

Published: Oct. 10, 2023

Abstract As one of the most promising approaches to producing high‐purity hydrogen (H 2 ), electrochemical water splitting powered by renewable energy sources such as solar, wind, and hydroelectric power has attracted considerable interest over past decade. However, electrolysis process is seriously hampered sluggish electrode reaction kinetics, especially four‐electron oxygen evolution at anode side, which induces a high overpotential. Currently, emerging hybrid strategy proposed integrating thermodynamically favorable electro–oxidation reactions with cathode, providing new opportunity for energy–efficient H2 production. To achieve highly efficient cost–effective toward large–scale practical H production, much work been continuously done exploit alternative anodic oxidation cutting–edge electrocatalysts. This review will focus on recent developments production coupled reactions, including choice substrates, investigation electrocatalytic materials, deep understanding underlying mechanisms. Finally, some insights into scientific challenges now standing in way future advancement technique are shared, hope inspiring further innovative efforts this rapidly growing field.

Language: Английский

---

Electrocatalytic seawater splitting: Nice designs, advanced strategies, challenges and perspectives

Materials Today, Journal Year: 2023, Volume and Issue: 69, P. 193 - 235

Published: Sept. 19, 2023

Language: Английский

---

Principles of Designing Electrocatalyst to Boost Reactivity for Seawater Splitting

Advanced Energy Materials, Journal Year: 2023, Volume and Issue: 13(31)

Published: June 27, 2023

Abstract Directly seawater electrolysis would be a transformative technology for large‐scale carbon‐neutral hydrogenproduction without relying on pure water. However, current splitting is challenged by detrimental chlorine chemistry, the sluggish kinetics, and existence of impurities/precipitates, making it more difficult than water splitting. So far, tremendous efforts have been made to develop electrocatalysts boost electrocatalytic hydrogen evolution reaction (HER) oxygen (OER) activities seawater‐based electrolyzers. To get further insights into achievements future perspectives catalysts electrolysis, general principles are summarized comprehensive optimization, ranging from active sites, electrochemical interface, electron transfer path, fully improve performance electrolysis. Then, aiming at different challenges cathode anode unique strategies design effective cathodic anodic catalysts, such pH criterion, selective HER/OER, Cl − blocking layers, discussed, respectively. Also, several fields which worthy exploration as rational extensions developing toward practical applications put forward.

Language: Английский

---

N, O-doped carbon foam as metal-free electrocatalyst for efficient hydrogen production from seawater

Nano Research, Journal Year: 2022, Volume and Issue: 15(10), P. 8922 - 8927

Published: Aug. 19, 2022

Language: Английский

---