RSC Advances, Journal Year: 2023, Volume and Issue: 13(6), P. 3843 - 3876
Published: Jan. 1, 2023
Electrochemical splitting of water is an appealing solution for energy storage and conversion to overcome the reliance on depleting fossil fuel reserves prevent severe deterioration global climate. Though there are several cells, hydrogen (H
Language: Английский
Chemical Society Reviews, Journal Year: 2020, Volume and Issue: 49(7), P. 2196 - 2214
Published: Jan. 1, 2020
The fundamentals related to the oxygen evolution reaction and catalyst design are summarized discussed.
Language: Английский
Citations
2139
Advanced Functional Materials, Journal Year: 2020, Volume and Issue: 30(15)
Published: Feb. 16, 2020
The development of low-cost, high-efficiency, and robust electrocatalysts for the oxygen evolution reaction (OER) is urgently needed to address energy crisis. In recent years, non-noble-metal-based OER have attracted tremendous research attention. Beginning with introduction some evaluation criteria OER, current are reviewed, classification metals/alloys, oxides, hydroxides, chalcogenides, phosphides, phosphates/borates, other compounds, along their advantages shortcomings. knowledge mechanisms practical applications also summarized developing more efficient electrocatalysts. Finally, states, challenges, perspectives discussed.
Language: Английский
Citations
1033
Joule, Journal Year: 2021, Volume and Issue: 5(7), P. 1704 - 1731
Published: June 16, 2021
Language: Английский
Citations
806
Advanced Materials, Journal Year: 2021, Volume and Issue: 33(20)
Published: March 25, 2021
Abstract The proton exchange membrane (PEM) water electrolysis is one of the most promising hydrogen production techniques. oxygen evolution reaction (OER) occurring at anode dominates overall efficiency. Developing active and robust electrocatalysts for OER in acid a longstanding challenge PEM electrolyzers. Most catalysts show unsatisfied stability under strong acidic oxidative conditions. Such also leads to difficulties better understanding mechanisms. This review aims provide current progress on mechanisms acid, analyze strategies enhance both activity stability, summarize state‐of‐the‐art acid. First, prevailing are reviewed establish physicochemical structure–activity relationships guiding design highly efficient with stable performance. reported approaches improve activity, from macroview microview, then discussed. To problem instability, key factors affecting catalyst summarized surface reconstruction Various noble‐metal‐based non‐noble‐metal‐based reviewed. Finally, challenges perspectives development
Language: Английский
Citations
645
Nature Communications, Journal Year: 2020, Volume and Issue: 11(1)
Published: Aug. 13, 2020
Abstract Anodic oxygen evolution reaction (OER) is recognized as kinetic bottleneck in water electrolysis. Transition metal sites with high valence states can accelerate the kinetics to offer highly intrinsic activity, but suffer from thermodynamic formation barrier. Here, we show subtle engineering of oxidized Ni 4+ species surface reconstructed (oxy)hydroxides on multicomponent FeCoCrNi alloy film through interatomically electronic interplay. Our spectroscopic investigations theoretical studies uncover that Fe component enables species, which energetically favored by multistep 2+ →Ni 3+ . The dynamically constructed drives holes into ligands facilitate intramolecular coupling, triggering lattice activation form Fe-Ni dual-sites ultimate catalytic center activity. As a result, OER catalyst delivers outstanding mass activity and turnover frequency 3601 A g −1 0.483 s at an overpotential 300 mV alkaline electrolyte, respectively.
Language: Английский
Citations
598
Advanced Materials, Journal Year: 2021, Volume and Issue: 34(16)
Published: Dec. 4, 2021
Abstract Electrochemical water splitting technology for producing “green hydrogen” is important the global mission of carbon neutrality. Electrocatalysts with decent performance at high current densities play a central role in industrial implementation this technology. This field has advanced immensely recent years, as witnessed by many types catalysts designed and synthesized toward industriallyrelevant (>200 mA cm –2 ). By discussing advances field, several key aspects are summarized that affect catalytic high‐current‐density electrocatalysis, including dimensionality catalysts, surface chemistry, electron transport path, morphology, catalyst‐electrolyte interplay. The multiscale design strategy considers these comprehensively developing electrocatalysts highlighted. perspectives on future directions emerging also put forward.
Language: Английский
Citations
581
Nature Materials, Journal Year: 2020, Volume and Issue: 19(11), P. 1140 - 1150
Published: Oct. 5, 2020
Language: Английский
Citations
561
Advanced Energy Materials, Journal Year: 2019, Volume and Issue: 10(11)
Published: Sept. 24, 2019
Abstract The exploitation of cheap and efficient electrocatalysts is the key to make energy‐related electrocatalytic techniques commercially viable. In recent years, transition metal phosphides (TMPs) have gained a great deal attention owing their multifunctional active sites, tunable structure, composition, as well unique physicochemical properties. This review summarizes up‐to‐date progress on TMPs in electrocatalysis from diversified synthetic methods, ingenious‐modulated strategies, novel applications. order set forth theory–structure–performance relationships upon TMPs, corresponding reaction mechanisms, electrocatalytsts' structure/composition designs desired electrochemical performance are jointly discussed, along with demonstrating practical applications overall water splitting, metal–air batteries, lithium–sulfur etc. end, some underpinning issues research orientations toward briefly proposed.
Language: Английский
Citations
541
ACS Energy Letters, Journal Year: 2021, Volume and Issue: 6(4), P. 1175 - 1180
Published: March 19, 2021
The search for cheap and abundant alternatives to Pt the hydrogen evolution reaction (HER) has led many efforts develop new catalysts. Although discovery of promising catalysts is often reported, none can compete with in intrinsic activity. To enable true progress, a rigorous assessment catalytic activity needed, addition minimizing mass-transport limitations following best practices measurements. Herein, we underline importance measuring activities, e.g., turnover frequencies (TOFs). Using mass-selected, identical nanoparticles at range loadings, show pervasive impact on observed acid. We present highest TOF measured room temperature. Since our measurements are still limited by mass transport, HER acid unknown. numerical diffusion model, suggest that hysteresis cyclic voltammograms arises from H2 oversaturation, which another indicator limitations.
Language: Английский
Citations
532
Angewandte Chemie International Edition, Journal Year: 2021, Volume and Issue: 60(36), P. 19572 - 19590
Published: Feb. 19, 2021
Abstract Compared to modern fossil‐fuel‐based refineries, the emerging electrocatalytic refinery (e‐refinery) is a more sustainable and environmentally benign strategy convert renewable feedstocks energy sources into transportable fuels value‐added chemicals. A crucial step in conducting e‐refinery processes development of appropriate reactions optimal electrocatalysts for efficient cleavage formation chemical bonds. However, compared well‐studied primary (e.g., O 2 reduction, water splitting), mechanistic aspects materials design complex are yet be settled. To address this challenge, herein, we first present fundamentals heterogeneous electrocatalysis some reactions, then implement these establish framework by coupling situ generated intermediates (integrated reactions) or products (tandem reactions). We also set principles strategies efficiently manipulate reaction pathways.
Language: Английский
Citations
530