In-situ reconstructed Ru atom array on α-MnO2 with enhanced performance for acidic water oxidation

Lin, Chao; Li, Jili; Li, Xiaopeng; Yang, Shuai; Luo, Wei; Zhang, Yaojia; Kim, Sung–Hae; Kim, Dong‐Hyung; Shinde, S.S.; Li, Yefei; Liu, Zhi-Pan; Zheng, Jianguo; Lee, Jung-Ho

doi:10.1038/s41929-021-00703-0

Cited by 579 publications

(341 citation statements)

References 84 publications

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“…[ 17 ] To further assess the OER performance, we also collected the actual amount of oxygen evolved by chronoamperometry at a potential to achieve the density of 50 mA cm −2 in 1 m KOH + 0.5 m NaCl electrolyte. [ 60 ] The optical photos of the O 2 gas collection setup and their evolved volumes after different reaction times are shown in Figure S18 (Supporting Information). The Ni 2 Fe‐LDH/FeNi 2 S 4 /NF (1 × 1 cm 2 ) reaches the fastest O 2 generation rate of ≈7.0 mL h −1 at the initial 1 h period.…”

Section: Resultsmentioning

confidence: 99%

Partial Sulfidation Strategy to NiFe‐LDH@FeNi₂S₄ Heterostructure Enable High‐Performance Water/Seawater Oxidation

Tan

Wang

et al. 2022

Adv Funct Materials

179

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The development of a high-performance electrocatalyst for oxygen evolution reaction (OER) is imperative but challenging. Here, a partial sulfidation route to construct Ni 2 Fe-LDH/FeNi 2 S 4 heterostructure on nickel foam (Ni 2 Fe-LDH/ FeNi 2 S 4 /NF) by adjusting the hydrothermal duration is reported. The heterostructures afford abundant hydroxide/sulfide interfaces that offer plentiful active sites, rapid charge and mass transfer, favorable adsorption energy to oxygenated species (OH − and OOH) evidenced by the density functional theory calculations, which synergistically boost the alkaline water oxidation. In the 1.0 m KOH solution, Ni 2 Fe-LDH/FeNi 2 S 4 /NF exhibits an excellent OER catalytic activity with a much smaller overpotential (240 mV) to reach the current density of 100 mA cm −2 than single-phase Ni 2 Fe-LDH/NF (279 mV) or FeNi 2 S 4 /NF (271 mV). More impressively, 2000 cycles of cyclic voltammetry scan for water oxidation results in the formation of a sulfate layer over the catalyst. The corresponding post-catalyst demonstrates better OER activity and durability than the initial one in the alkaline simulated seawater electrolyte. The post-Ni 2 Fe-LDH/FeNi 2 S 4 /NF delivers smaller overpotential (250 mV) at 100 mA cm −2 and longer stability time than the original form (260 mV). The post-formed sulfate passivating layer is responsible for the outstanding corrosion resistance of the salty-water oxidation anode since it can effectively repel chloride.

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Section: Resultsmentioning

confidence: 99%

Partial Sulfidation Strategy to NiFe‐LDH@FeNi₂S₄ Heterostructure Enable High‐Performance Water/Seawater Oxidation

Tan

Wang

et al. 2022

Adv Funct Materials

179

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“…Meanwhile, the results revealed that up to 37 monolayers of oxides (~ 14 nm) can be involved during the OER process [132]. Since then, 18 O labelled EMS has been widely used as a powerful tool to monitor the participation of lattice oxygen [105,130].…”

Section: Experimental Observations Evidencing the Lommentioning

confidence: 99%

Oxygen Evolution Reaction in Energy Conversion and Storage: Design Strategies Under and Beyond the Energy Scaling Relationship

2022

Nano-Micro Lett.

167

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The oxygen evolution reaction (OER) is the essential module in energy conversion and storage devices such as electrolyzer, rechargeable metal–air batteries and regenerative fuel cells. The adsorption energy scaling relations between the reaction intermediates, however, impose a large intrinsic overpotential and sluggish reaction kinetics on OER catalysts. Developing advanced electrocatalysts with high activity and stability based on non-noble metal materials is still a grand challenge. Central to the rational design of novel and high-efficiency catalysts is the development and understanding of quantitative structure–activity relationships, which correlate the catalytic activities with structural and electronic descriptors. This paper comprehensively reviews the benchmark descriptors for OER electrolysis, aiming to give an in-depth understanding on the origins of the electrocatalytic activity of the OER and further contribute to building the theory of electrocatalysis. Meanwhile, the cutting-edge research frontiers for proposing new OER paradigms and crucial strategies to circumvent the scaling relationship are also summarized. Challenges, opportunities and perspectives are discussed, intending to shed some light on the rational design concepts and advance the development of more efficient catalysts for enhancing OER performance.

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“…At present, it is generally accepted that the OER can take place on heterogeneous catalysts via a conventional adsorbate evolution mechanism (AEM), lattice-oxygen-mediated mechanism (LOM), or oxide path mechanism (OPM). 128,129…”

Section: Reaction Mechanism Of the Uormentioning

confidence: 99%

Strategies for designing more efficient electrocatalysts towards the urea oxidation reaction

et al. 2022

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In-situ reconstructed Ru atom array on α-MnO2 with enhanced performance for acidic water oxidation

Cited by 579 publications

References 84 publications

Partial Sulfidation Strategy to NiFe‐LDH@FeNi₂S₄ Heterostructure Enable High‐Performance Water/Seawater Oxidation

Partial Sulfidation Strategy to NiFe‐LDH@FeNi₂S₄ Heterostructure Enable High‐Performance Water/Seawater Oxidation

Oxygen Evolution Reaction in Energy Conversion and Storage: Design Strategies Under and Beyond the Energy Scaling Relationship

Strategies for designing more efficient electrocatalysts towards the urea oxidation reaction

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In-situ reconstructed Ru atom array on α-MnO2 with enhanced performance for acidic water oxidation

Cited by 579 publications

References 84 publications

Partial Sulfidation Strategy to NiFe‐LDH@FeNi2S4 Heterostructure Enable High‐Performance Water/Seawater Oxidation

Partial Sulfidation Strategy to NiFe‐LDH@FeNi2S4 Heterostructure Enable High‐Performance Water/Seawater Oxidation

Oxygen Evolution Reaction in Energy Conversion and Storage: Design Strategies Under and Beyond the Energy Scaling Relationship

Strategies for designing more efficient electrocatalysts towards the urea oxidation reaction

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Partial Sulfidation Strategy to NiFe‐LDH@FeNi₂S₄ Heterostructure Enable High‐Performance Water/Seawater Oxidation

Partial Sulfidation Strategy to NiFe‐LDH@FeNi₂S₄ Heterostructure Enable High‐Performance Water/Seawater Oxidation