Unraveling the crucial contribution of additive chromate to efficient and stable alkaline seawater oxidation on Ni-based layered double hydroxides

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 665, P. 240 - 251

Published: March 21, 2024

Language: Английский

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Unlocking the potential of hydrogen evolution: Advancements in 3D nanostructured electrocatalysts supported on nickel foam

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 355, P. 124197 - 124197

Published: May 12, 2024

Language: Английский

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Green nanoparticles for advanced corrosion protection: Current perspectives and future prospects

Applied Surface Science Advances, Journal Year: 2024, Volume and Issue: 21, P. 100605 - 100605

Published: April 30, 2024

The article discusses the function of green nanoparticles in preventing corrosion different alloys such as copper, zinc, steel, and aluminium alloys. Green are characterized by their environmentally friendly sustainable production methods, which emphasize using natural materials. Environmental issues have long been linked to traditional inhibitors, has led a shift towards more alternatives. A potential remedy for these is use nanoparticles, derived from renewable biodegradable resources. support sustainability goals strong inhibition properties. Their combined role makes them essential players future where environmental awareness material safety coexist. review envisages significant paradigm critical industrial contexts, calls robust ecologically approach prevention. can potentially transform field materials protection entirely, investigation inhibitors opens up new directions study development. In conclusion, this highlights crucial creating creative solutions will enhance productivity well-being. Finally, prospects difficulties sustainably applying also explored.

Language: Английский

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Advanced Catalyst Design and Reactor Configuration Upgrade in Electrochemical Carbon Dioxide Conversion

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(52)

Published: Aug. 20, 2023

Abstract Electrochemical carbon dioxide reduction reaction (CO 2 RR) driven by renewable energy shows great promise in mitigating and potentially reversing the devastating effects of anthropogenic climate change environmental degradation. The simultaneous synthesis energy‐dense chemicals can meet global demand while decoupling emissions from economic growth. However, development CO RR technology faces challenges catalyst discovery device optimization that hinder their industrial implementation. In this contribution, a comprehensive overview current state research is provided, starting with background motivation for technology, followed fundamentals evaluated metrics. Then underlying design principles electrocatalysts are discussed, emphasizing structure–performance correlations advanced electrochemical assembly cells increase selectivity throughput. Finally, review looks to future identifies opportunities innovation mechanism discovery, material screening strategies, assemblies move toward carbon‐neutral society.

Language: Английский

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High-performing catalysts for energy-efficient commercial alkaline water electrolysis

Sustainable Energy & Fuels, Journal Year: 2022, Volume and Issue: 7(1), P. 31 - 60

Published: Nov. 30, 2022

High-performing, durable electrocatalysts, capable of maintaining industrial current densities (200–700 mA cm −2 ), are needed.

Language: Английский

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Bimetal‐Incorporated Black Phosphorene with Surface Electron Deficiency for Efficient Anti‐Reconstruction Water Electrolysis

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(25)

Published: March 9, 2023

Abstract Surface reconstruction (SRC) is a common phenomenon and promotion manner for Ni/Co‐based precatalysts during the water splitting process. However, catalytic surface will in turn complicate streamlined prediction modeling on activity. Hence, rational design of anti‐SRC catalysts highly desirable, but challengeable. In this article, series affordable bimetal‐incorporated black phosphorene (BP) are constructed by an situ electro‐exfoliation/insertion method electrolysis. It found that bimetals (e.g., NiFe, NiPd) cationic covalent incorporation with electron‐deficient state few‐layer BP. The optimized bimetal‐BP structures present excellent stable performances low overpotentials hydrogen evolution (HER, 53 mV, NiPd‐BP) oxygen (OER, 268 NiFe‐BP) reactions at 10 mA cm −2 1 m KOH. behaviors elucidated Raman studies HER/OER, probably due to balanced electron transfer pathway Ni sites. This research opens interesting possibilities designing efficient production authentic structure‐activity understandings.

Language: Английский

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The Oxygen Evolution Reaction Drives Passivity Breakdown for Ni–Cr–Mo Alloys

Advanced Materials, Journal Year: 2023, Volume and Issue: 35(39)

Published: July 12, 2023

Corrosion is the main factor limiting lifetime of metallic materials, and a fundamental understanding governing mechanism surface processes difficult to achieve since thin oxide films at metal-liquid interface passivity are notoriously challenging study. In this work, combination synchrotron-based techniques electrochemical methods used investigate passive film breakdown Ni-Cr-Mo alloy, which in many industrial applications. This alloy found be active toward oxygen evolution reaction (OER), OER onset coincides with loss severe metal dissolution. The involves oxidation Mo4+ sites Mo6+ that can dissolved, results breakdown. fundamentally different from typical transpassive Cr-containing alloys where Cr6+ postulated dissolved high anodic potentials, not observed here. At current densities, also leads acidification solution near surface, further triggering plays an important role due their catalytic activity, effect needs considered when studying corrosion catalytically alloys.

Language: Английский

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Recent advances of slippery liquid-infused porous surfaces with anti-corrosion

Chemical Communications, Journal Year: 2023, Volume and Issue: 59(16), P. 2182 - 2198

Published: Jan. 1, 2023

Slippery liquid-infused porous surfaces with dense lubricant layer and non-adhesive enable to effectively avoid metal corrosion.

Language: Английский

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Oxygen reduction performance measurements: Discrepancies against benchmarks

Battery energy, Journal Year: 2023, Volume and Issue: 2(3)

Published: Jan. 30, 2023

Abstract Oxygen electrocatalysis is crucial for renewable energy conversion and storage technologies. Specifically proton exchange membrane fuel cells (PEMFCs), oxygen reduction reaction (ORR) the primary that determines performance costs. The ORR activity durability are commonly assessed using a rotating disk electrode (RDE). However, there numerous inconsistencies in RDE measurements among researchers when comparing newly developed catalysts to state‐of‐the‐art ones. These evaluation deviations from standard protocols result irreproducible screening benchmarking of electrocatalysts. Despite fact US Department Energy has established regularly revises protocols, many reported studies do not adhere these guidelines. This perspective aims draw attention discrepancies stability at as emphasizes implementing mandatory meaningful comparison durability. We intend emphasize use available test standards ubiquitously more accurate comparisons accelerate development cell catalysts.

Language: Английский

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Exploration and Insight of Dynamic Structure Evolution for Electrocatalysts

Accounts of Materials Research, Journal Year: 2023, Volume and Issue: 4(5), P. 427 - 437

Published: April 10, 2023

ConspectusElectrochemical energy technology is crucial for transitioning from fossil fuels to renewable sources due its clean, efficient, and sustainable nature. Electrocatalysts are capable of maximizing conversion efficiency in a practical electrochemical by accelerating the charge transfer at electrode–electrolyte interface, which structure composition electrocatalyst directly determine catalyst performance. Therefore, advanced electrocatalysts possess not only an optimal but also sufficient self-stability processes achieve continuous efficient conversion. However, structural evolution various electrocatalytic has been gradually revealed intensified, hinders application technology.The process involves adsorption bonding reactants on active sites, this results instantaneous change electrocatalysts. Structural proposed here emphasizes surface or internal structure/composition reaction systems factors such as medium, reactants, potential, so on. Generally, transformation sites/phases under potentials. This process, known reconstruction, can lead changes activity and/or selectivity. Related research focuses how control utilize reconstruction prepare robust reconstructed catalysts may always maintain stability undergo further evolution, loss passivation components, eventually leading deactivation. commonly referred corrosion, final degradation catalytic The related inducement triggering corrosion more critical prevention strategies. it urgent clarify formulate strategies, designing corrosion-resistant harsh complex environment/conditions dynamic changeable behavior electrocatalysts, challenging mechanism/law mechanism. It impossible establish accurate structure–activity relationship guide design preparation high-efficiency catalysts.In Account, we present recent progress We first discuss electrolysis systems, including mechanism several prepared manipulating reconstruction. introduce unique microbially induced synthesis that upgrade synthesis. Next, examine Pt-based oxygen reduction propose Pt dissolution caused adsorbed oxygenated species. suggest Pt–Ni catalysts, extendable carbon-coated resistance strategies suggested. Finally, challenges opportunities technologies.

Language: Английский

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