Fe and P dual-doped nickel carbonate hydroxide/carbon nanotube hybrid electrocatalysts for an efficient oxygen evolution reaction

Ye, Qing; Jiang, Liu; Lin, Lü; Sun, Min; Wang, Yufeng; Cheng, Yongliang

doi:10.1039/d2nr00184e

Cited by 21 publications

(26 citation statements)

References 57 publications

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“…Furthermore, the remaining peaks are nicely attributed to Ni 2 CO 3 (OH) 2 (JCPDS 29–0868). Also, the divided peak positions in high‐resolution Ni 2p 3/2 and Fe 2p 3/2 (Figure S7c–d) spectra of NiFe CHs‐CNT/G after long‐term OER test all shift toward lower energy, indicating a decreased valence state with the pristine ones [30] . The low‐valent Ni is easily oxidized to the high‐valent state, which can enhance the OER activity of catalysts [31] .…”

Section: Resultsmentioning

confidence: 97%

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Green Preparation of CNTs/Graphite Supported NiFe Carbonate Hydroxides for Oxygen Evolution Reaction

Liu

Wang

et al. 2022

ChemCatChem

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Developing durable and highly active non-noble electrocatalysts for oxygen evolution reaction (OER) is highly desirable for water splitting. Herein, we report a NiFe carbonate hydroxides embedded in a carbon nanotubes and graphite composite material (NiFe CHs-CNT/G) by a facile and green precipitation method. The NiFe CHs are in-situ grown on CNT/G using NH 3. H 2 O as precipitant and CO 2 in air as the source of CO 3 2À under room temperature and pressure. The introduction of CNT/G not only improves the conductivity of material, but also enhances the combination of CNT/G and NiFe CHs nanosheets, thereby accelerating the transfer of electrons and reactants. Meanwhile, the catalyst with a special sandwich morphology provides larger active area to expose more active sites. Moreover, the effective interaction within the Ni and Fe in NiFe CHs-CNT/G is benefiting for improving OER performance. All these lead to the optimized NiFe CHs-CNT/G catalyst delivers an outstanding OER performance with a low overpotential of 300 mV at 10 mA cm À 2 and a small Tafel slope of 60.13 mV dec À 1 .

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Section: Resultsmentioning

confidence: 97%

“…Also, the divided peak positions in highresolution Ni 2p 3/2 and Fe 2p 3/2 (Figure S7c-d) spectra of NiFe CHs-CNT/G after long-term OER test all shift toward lower energy, indicating a decreased valence state with the pristine ones. [30] The low-valent Ni is easily oxidized to the high-valent…”

Section: Chemcatchemmentioning

confidence: 99%

Green Preparation of CNTs/Graphite Supported NiFe Carbonate Hydroxides for Oxygen Evolution Reaction

Liu

Wang

et al. 2022

ChemCatChem

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“…The chemisorption of oxyanions changes the electronic structure of the oxyanion and the catalyst. In this regard, DFT calculations have shown that surface‐adsorbed oxyanions can increase the density of states at the Fermi level, [16, 39, 46] and that the d‐band center can be changed, potentially resulting in optimized OER intermediate adsorption energies [18, 47, 48] Surface‐adsorption of sulfate has been shown to create a negatively charged surface layer, which repulses other anions such as chlorine and thus can prevent unwanted side reactions such as chlorine oxidation in direct seawater splitting [49, 50] …”

Section: The Effect Of Surface‐adsorbed Oxyanionsmentioning

confidence: 99%

Section: The Effect Of Surface‐adsorbed Oxyanionsmentioning

confidence: 99%

“…In this regard, DFT calculations have shown that surface-adsorbed oxyanions can increase the density of states at the Fermi level, [16,39,46] and that the d-band center can be changed, potentially resulting in optimized OER intermediate adsorption energies. [18,47,48] 3) Surface-adsorption of sulfate has been shown to create a negatively charged surface layer, which repulses other anions such as chlorine and thus can prevent unwanted side reactions such as chlorine oxidation in direct seawater splitting. [49,50] 4) In metal-organic frameworks, oxyanions from the electrolyte have also been shown to adsorb in the vicinity of the active site influencing catalysis.…”

Section: The Effect Of Surface-adsorbed Oxyanions On the Oermentioning

confidence: 99%

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Effect of Surface‐Adsorbed and Intercalated (Oxy)anions on the Oxygen Evolution Reaction

Hausmann

Menezes

2022

Angewandte Chemie

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As the kinetically demanding oxygen evolution reaction (OER) is crucial for the decarbonization of our society, a wide range of (pre)catalysts with various non‐active‐site elements (e.g., Mo, S, Se, N, P, C, Si…) have been investigated. Thermodynamics dictate that these elements oxidize during industrial operation. The formed oxyanions are water soluble and thus predominantly leach in a reconstruction process. Nevertheless, recently, it was unveiled that these thermodynamically stable (oxy)anions can adsorb on the surface or intercalate in the interlayer space of the active catalyst. There, they tune the electronic properties of the active sites and can interact with the reaction intermediates, changing the OER kinetics and potentially breaking the persisting OER *OH/*OOH scaling relations. Thus, the addition of (oxy)anions to the electrolyte opens a new design dimension for OER catalysis and the herein discussed observations deepen the understanding of the role of anions in the OER.

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Progress in Manipulating Dynamic Surface Reconstruction via Anion Modulation for Electrocatalytic Water Oxidation

Ajmal

Zhang

et al. 2023

Advanced Science

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The development of efficient and economical electrocatalysts for oxygen evolution reaction (OER) is of paramount importance for the sustainable production of renewable fuels and energy storage systems; however, the sluggish OER kinetics involving multistep four proton‐coupled electron transfer hampers progress in these systems. Fortunately, surface reconstruction offers promising potential to improve OER catalyst design. Anion modulation plays a crucial role in controlling the extent of surface reconstruction and positively persuading the reconstructed species' performances. This review starts by providing a general explanation of how various types of anions can trigger dynamic surface reconstruction and create different combinations with pre‐catalysts. Next, the influences of anion modulation on manipulating the surface dynamic reconstruction process are discussed based on the in situ advanced characterization techniques. Furthermore, various effects of survived anionic groups in reconstructed species on water oxidation activity are further discussed. Finally, the challenges and prospects for the future development directions of anion modulation for redirecting dynamic surface reconstruction to construct highly efficient and practical catalysts for water oxidation are proposed.

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Fe and P dual-doped nickel carbonate hydroxide/carbon nanotube hybrid electrocatalysts for an efficient oxygen evolution reaction

Abstract: Designing cost-effective and highly active oxygen evolution reaction (OER) electrocatalyst is the critical for large scale hydrogen production from electrocatalytic water splitting. Herein, Fe and P dual-doped nickel carbonate hydroxide/carbon...

Cited by 21 publications

References 57 publications

Green Preparation of CNTs/Graphite Supported NiFe Carbonate Hydroxides for Oxygen Evolution Reaction

Green Preparation of CNTs/Graphite Supported NiFe Carbonate Hydroxides for Oxygen Evolution Reaction

Effect of Surface‐Adsorbed and Intercalated (Oxy)anions on the Oxygen Evolution Reaction

Progress in Manipulating Dynamic Surface Reconstruction via Anion Modulation for Electrocatalytic Water Oxidation

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