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

---

Recent Progress on Semiconductor Heterogeneous Photocatalysts in Clean Energy Production and Environmental Remediation

Catalysts, Journal Year: 2023, Volume and Issue: 13(7), P. 1102 - 1102

Published: July 14, 2023

Semiconductor-based photocatalytic reactions are a practical class of advanced oxidation processes (AOPs) to address energy scarcity and environmental pollution. By utilizing solar as clean, abundant, renewable source, this process offers numerous advantages, including high efficiency, eco-friendliness, low cost. In review, we present several methods construct various photocatalyst systems with excellent visible light absorption efficient charge carrier separation ability through the optimization materials design reaction conditions. Then it introduces fundamentals photocatalysis in both clean generation remediation. other parts, introduce approaches enhance activity by applying different strategies, semiconductor structure modification (e.g., morphology regulation, co-catalysts decoration, doping, defect engineering, surface sensitization, heterojunction construction) tuning optimizing conditions (such concentration, initial contaminant pH, temperature, intensity, charge-carrier scavengers). Then, comparative study on performance recently examined photocatalysts applied production remediation will be discussed. To realize these goals, H2 via water splitting, CO2 reduction value-added products, dye, drug photodegradation lessen toxic chemicals, presented. Subsequently, report dual-functional for simultaneous pollutant reactions. brief discussion about industrial economical applications is described. The follows introducing application artificial intelligence machine learning selection an innovative issues. Finally, summary future research directions toward developing significantly improved efficiency stability provided.

Language: Английский

---

Semiconductor Nanomaterial Photocatalysts for Water-Splitting Hydrogen Production: The Holy Grail of Converting Solar Energy to Fuel

Nanomaterials, Journal Year: 2023, Volume and Issue: 13(3), P. 546 - 546

Published: Jan. 29, 2023

Nanomaterials have attracted attention for application in photocatalytic hydrogen production because of their beneficial properties such as high specific surface area, attractive morphology, and light absorption. Furthermore, is a clean green source energy that may help to resolve the existing crisis increasing environmental pollution caused by consumption fossil fuels. Among various methods, water splitting most significant it utilizes solar light, freely available throughout world, activated via semiconductor nanomaterial catalysts. Various types photocatalysts are developed this purpose, including carbon-based transition-metal-based photocatalysts, each has its advantages disadvantages. The present review highlights basic principle techniques thermochemical process, electrocatalytic direct enhance production. Moreover, modification strategies band gap engineering, alloys, multiphoton been reviewed. Z- S-schemes heterojunction were also Ultimately, developing efficient, practical, highly novel visible-light-harvesting will be discussed, addition challenges involved. This can provide researchers with reference current state affairs, motivate them develop new materials generation.

Language: Английский

---

Novel Pt-carbon core–shell decorated hierarchical CoMo2S4 as efficient electrocatalysts for alkaline/seawater hydrogen evolution reaction

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 473, P. 145348 - 145348

Published: Aug. 9, 2023

Language: Английский

---

Scalable synthesis of MOF-derived Nd2O3@C and V2O5@C nanohybrid: Efficient electrocatalyst for OER in alkaline medium

Fuel, Journal Year: 2023, Volume and Issue: 355, P. 129485 - 129485

Published: Aug. 18, 2023

Language: Английский

---

Transition metal-based electrocatalysts for alkaline overall water splitting: advancements, challenges, and perspectives

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(39), P. 5104 - 5135

Published: Jan. 1, 2024

This review has examined the advancements and challenges in development of transition metal-based electrocatalysts for alkaline water splitting reaction last decade.

Language: Английский

---

Rationally Construction of Mn‐Doped RuO₂ Nanofibers for High‐Activity and Stable Alkaline Ampere‐Level Current Density Overall Water Splitting

Small, Journal Year: 2023, Volume and Issue: 20(15)

Published: Nov. 23, 2023

Abstract Nowadays, highly active and stable alkaline bifunctional electrocatalysts toward water electrolysis that can work at high current density (≥1000 mA cm −2 ) are urgently needed. Herein, Mn‐doped RuO 2 (Mn x Ru 1‐x O nanofibers (NFs) constructed to achieve this object, presenting wonderful hydrogen evolution reaction (HER) oxygen (OER) performances with the overpotentials of only 269 461 mV 1 A in m KOH solution, remarkably stability under industrial demand , significantly better than benchmark Pt/C commercial electrocatalysts, respectively. More importantly, assembled Mn 0.05 0.95 NFs||Mn NFs electrolyzer overall splitting reaches 10 a cell voltage 1.52 V also delivers an outstanding over 150 h continuous operation, far surpassing Pt/C||commercial NFs||RuO most previously reported exceptional electrolyzers. Theoretical calculations indicate Mn‐doping into optimize electronic structure weaken strength O─H bond near‐zero adsorption free energy (Δ G H* value for HER, effectively intermediate * relevant sites, achieving higher OER catalytic activity, since overlapping center p‐d orbitals is closer Fermi level.

Language: Английский

---

Strategies and applications of electrocatalytic nitrate reduction towards ammonia

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 506, P. 215723 - 215723

Published: Feb. 26, 2024

Language: Английский

---

Mo-doped porous Co3O4 nanoflakes as an electrode with the enhanced capacitive contribution for asymmetric supercapacitor application

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 82, P. 110540 - 110540

Published: Jan. 16, 2024

Language: Английский

---

Dual doping: An emerging strategy to construct efficient metal catalysts for water electrolysis

EcoEnergy, Journal Year: 2024, Volume and Issue: 2(1), P. 114 - 140

Published: March 1, 2024

Abstract Developing efficient electrocatalysts for water electrolysis is critical sustainable hydrogen energy development. For enhancing the catalytic performance of metal catalysts, dual doping has attracted enormous interest its high effectiveness and facile realization. Dual effective tuning electronic properties, electrical conductivity, populating active sites, improving stability catalysts. In this review, recent developments in cation–cation, cation–anion, anion–anion dual‐doped catalysts splitting are comprehensively summarized discussed. An emphasis put on illustrating how regulates external internal properties boosts Additionally, perspectives pointed out to guide future research engineering high‐performance heteroatom‐doped electrocatalysts.

Language: Английский

---