Green Chemistry, Journal Year: 2024, Volume and Issue: 26(18), P. 9782 - 9790
Published: Jan. 1, 2024
F doping promotes the enrichment of OH on surface Co 3 O 4 , reduces energy barrier rate-limiting step, and thus accelerates reaction efficiency.
Language: Английский
ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(3), P. 853 - 879
Published: Feb. 7, 2024
Hydrogen production via electrocatalytic water splitting is hampered by the slow kinetics of anodic oxygen evolution reaction (OER). To address this limitation, electrochemical hydrogen (HER) can be boosted with more favorable oxidation small organic molecules ideally driven renewable energies, producing valuable chemicals. In context, coupling methanol (MOR) simultaneous formate has garnered significant interest. Such a cost-effective process, meeting growing demand for energy storage and fuel production, requires developing cheap efficient electrocatalysts. Given knowledge gap between precious nonprecious metal electrocatalysts, exemplified nickel its derived compounds, review focuses on MOR from fundamental electrochemistry, materials design synthesis, activity-composition/structure relations. Despite advances, we still face formidable challenges in deciphering intricate catalytic mechanism, elevating activity selectivity to new heights, pioneering development scalable prototypes.
Language: Английский
Citations
76
Advanced Science, Journal Year: 2023, Volume and Issue: 10(32)
Published: Oct. 2, 2023
Abstract Researchers are investigating innovative composite materials for renewable energy and storage systems. The major goals of this studies i) to develop a low‐cost stable trimetallic oxide catalyst ii) change the electrical environment active sites through site‐selective Mo substitution. effect on NiCoMoO 4 is elucidated using both in situ X‐ray absorption spectroscopy diffraction analysis. Also, density functional theory strategies show that has extraordinary catalytic redox activity because high adsorption atom crystal plane. Further, it demonstrated hierarchical nanoflower structures reduced graphene can be employed as powerful bifunctional electrocatalyst oxygen reduction/evolution reactions alkaline solutions, providing small overpotential difference 0.75 V. Zn–air batteries based developed exhibit outstanding cycling stability high‐power 125.1 mW cm −2 . This work encourages use practical applications provides an interesting concept designing electrocatalyst.
Language: Английский
Citations
45
Carbon Neutralization, Journal Year: 2024, Volume and Issue: 3(2), P. 172 - 198
Published: Feb. 26, 2024
Abstract Water splitting is a critical process for the production of green hydrogen, contributing to advancement circular economy. However, application water devices on large scale primarily impeded by sluggish oxygen evolution reaction (OER) at anode. Thus, developing and designing efficient OER catalysts significant target. NiFe‐based are extensively researched as excellent electrocatalysts due their affordability, abundant reserves, intrinsic activities. they still suffer from long‐term stability challenges. To date, few systematic strategies improving durability have been reported. In this review, various advanced introduced. Moreover, challenges in alkaline media, including iron segregation, structural degradation, peeling substrate summarized. More importantly, enhance highlighted opportunities discussed facilitate future studies electrolysis. This review presents design strategy anion exchange membrane (AEM) electrolyzers overcome OER, which also emphasizes importance media its significance achieving large‐scale commercialization.
Language: Английский
Citations
35
Advanced Energy Materials, Journal Year: 2024, Volume and Issue: 14(38)
Published: July 14, 2024
Abstract Replacing the slow protonation process of oxygen evolution reaction (OER) with fast alcohol electro‐oxidation can decrease driving potentials, thus improving overall efficiency electrochemical devices. However, formation effective catalytic sites for oxidation remains challenging in accelerating to inhibit metal leaching and improve catalyst stability. Herein, asymmetric Ni‐O‐Cr are constructed by alloying Cr into NiO matrix optimize coordination environments, showing significantly enhanced stability during electro‐oxidation. The maintain constant valence states Ni oxidation, efficiently suppressing dissolution even at high potentials. In situ characterizations combined theoretical calculations indicate that adsorption activation OH* molecules compared pure NiO, increasing anodic kinetics. results also smaller gap 3 d ‐O 2 p strengthens charge transfer, leading This work gives insights boosting using sites‐enriched solid‐solution electrocatalysts.
Language: Английский
Citations
27
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(14)
Published: Feb. 15, 2024
As a sustainable valorization route, electrochemical glycerol oxidation reaction (GOR) involves in formation of key OH* and selective adsorption/cleavage C-C(O) intermediates with multi-step electron transfer, thus suffering from high potential poor formate selectivity for most non-noble-metal-based electrocatalysts. So, it remains challenging to understand the structure-property relationship as well construct synergistic sites realize high-activity high-selectivity GOR. Herein, we successfully achieve dual-high performance low potentials superior GOR by forming Lewis Brønsted acid Ni-alloyed Co-based spinel. The optimized NiCo oxide solid-acid electrocatalyst exhibits (1.219 V@10 mA/cm
Language: Английский
Citations
22
Advanced Materials, Journal Year: 2024, Volume and Issue: 36(35)
Published: June 5, 2024
The utilization of rare earth elements to regulate the interaction between catalysts and oxygen-containing species holds promising prospects in field oxygen electrocatalysis. Through structural engineering adsorption regulation, it is possible achieve high-performance catalytic sites with a broken activity-stability tradeoff. Herein, this work fabricates hierarchical CeO
Language: Английский
Citations
22
Advanced Powder Materials, Journal Year: 2024, Volume and Issue: 3(5), P. 100227 - 100227
Published: Aug. 15, 2024
Language: Английский
Citations
22
Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 665, P. 240 - 251
Published: March 21, 2024
Language: Английский
Citations
18
Advanced Science, Journal Year: 2023, Volume and Issue: 10(29)
Published: Aug. 8, 2023
Abstract The development of efficient and economical electrocatalysts for oxygen evolution reaction (OER) is paramount importance the sustainable production renewable fuels energy storage systems; however, sluggish OER kinetics involving multistep four proton‐coupled electron transfer hampers progress in these systems. Fortunately, surface reconstruction offers promising potential to improve catalyst design. Anion modulation plays a crucial role controlling extent positively persuading reconstructed species' performances. This review starts by providing general explanation how various types anions can trigger dynamic create different combinations with pre‐catalysts. Next, influences anion on manipulating process are discussed based situ advanced characterization techniques. Furthermore, effects survived anionic groups species water oxidation activity further discussed. Finally, challenges prospects future directions redirecting construct highly practical catalysts proposed.
Language: Английский
Citations
26
Materials Today Physics, Journal Year: 2024, Volume and Issue: 43, P. 101399 - 101399
Published: March 15, 2024
Language: Английский
Citations
15