Recent progress of transition metal nitrides for efficient electrocatalytic water splitting

Peng, Xiang; Pi, Chaoran; Zhang, Xuming; Li, Shuai; Huo, Kaifu; Chu, Paul K.

doi:10.1039/c8se00525g

Cited by 354 publications

(203 citation statements)

References 175 publications

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“…This may limit the further development of transition metal and heteroatom co‐doped nanocarbons as OER electrocatalysts . Finally, the active sites of OER electrocatalysts with complex structures, such as multi‐heteroatom doped nanocarbons integrated with dual transition metals, are extremely hard to be identified owing to complicated electrochemical environments during the OER . Furthermore, nanocarbon based transition metal compounds are easily agglomerated during the oxidation reaction, are still need to be explored through advanced characterization equipments to directly observe electrocatalytic processes during the OER reaction.…”

Section: Discussionmentioning

confidence: 97%

“…Recently, TMN x have been considered as one of the most promising OER electrocatalysts owning to their unique merits of tunable sizes, electronic structures, metallic conductivity, and high corrosion resistance . Specifically, doping N atoms into transition metal can make the electronic structure of TMN x up to the Fermi level which resemble that of precious metals (e. g. Pt) via increasing the d‐electron density and making the d‐band contraction . However, single‐phase TMN x have worse activity as compared with noble metals (e. g. Pt‐group) due to the dissatisfied metal‐hydrogen (M−H) bonding strength.…”

Section: Hybrid Nanocarbon Electrocatalystsmentioning

confidence: 99%

“…However, single‐phase TMN x have worse activity as compared with noble metals (e. g. Pt‐group) due to the dissatisfied metal‐hydrogen (M−H) bonding strength. Constructing of hybrids based on TMN x and heteroatom‐doped carbon materials has been proved as a promising way to enhance the electrochemical performances because the modified electronic structure of nanocarbon based transition metal compounds leads to desirable M−H bonding strength, positive synergistic effect, and favorable electrochemical stability . For example, a novel class of highly active and stable OER electrocatalysts were synthesized through immobilizing organometallic Ni (II) complexes on the sidewalls of multiwalled carbon nanotubes (denoted as Ni‐bipy‐MWNT).…”

Section: Hybrid Nanocarbon Electrocatalystsmentioning

confidence: 99%

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Nanostructured Carbon Based Heterogeneous Electrocatalysts for Oxygen Evolution Reaction in Alkaline Media

Lei

Lyu

et al. 2019

ChemCatChem

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Development of cost-effective and highly efficient oxygen evolution reaction (OER) electrocatalysts has become a vital project of renewable energy technologies. The OER is critical for a variety of electrochemical energy devices such as water electrolyzers, metal-air batteries, CO 2 reduction, and electrosynthesis of ammonia. Compared to extensively studied metal oxide catalysts, graphitized carbon catalysts have been newly emerged as promising OER catalysts especially in less corrosive alkaline media, due to their low cost, high electrical conductivity, unique physicochemical properties, and excellent electrocatalytic performances. In this review, we discussed recent advances in nanostructured carbon electrocatalysts. At first, metal-free OER carbon electrocatalysts including single-and multi-heteroatom doping and edge-and defect-rich defects are introduced. Then, transition metal and heteroatom co-doped nanocarbons are summarized including CoÀ NÀ C, NiÀ NÀ C, and Fe-NÀ C. In addition, carbon based hybrid electrocatalysts are highlighted, which include carbon based transition metal nitrides (TMN x ), sulfides (TMS x ), and selenides (TMSe x ), and phosphides (TMP x ). Finally, current challenges and perspective for future research on carbon-based OER catalysts are outlined.

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Section: Discussionmentioning

confidence: 97%

Section: Hybrid Nanocarbon Electrocatalystsmentioning

confidence: 99%

Section: Hybrid Nanocarbon Electrocatalystsmentioning

confidence: 99%

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Nanostructured Carbon Based Heterogeneous Electrocatalysts for Oxygen Evolution Reaction in Alkaline Media

Lei

Lyu

et al. 2019

ChemCatChem

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“…[ 7,8 ] For HER, many nonnoble metal compounds have replaced traditional noble metal catalysts and have been utilized with satisfying catalytic efficiency. [ 9–12 ] Concerning to the four‐electron OER process, its reaction rates determine the overall catalytic efficiency of the water electrolysis. [ 13–15 ] Therefore, it is of particular importance to develop OER catalysts with high activity and durability.…”

Section: Introductionmentioning

confidence: 99%

Atomic Doping and Anion Reconstructed CoF₂ Electrocatalyst for Oxygen Evolution Reaction

Dong

et al. 2020

Adv Materials Inter

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limits the availability of new types of energy. [4] Accordingly, hydrogen has been considered as a promising energy carrier to storage renewable energy through electrocatalytic water splitting. Great progress has been achieved to improve the electrolytic efficiency of the hydrogen evolution reaction (HER) [5,6] and oxygen evolution reaction (OER). [7,8] For HER, many nonnoble metal compounds have replaced traditional noble metal catalysts and have been utilized with satisfying catalytic efficiency. [9][10][11][12] Concerning to the fourelectron OER process, its reaction rates determine the overall catalytic efficiency of the water electrolysis. [13][14][15] Therefore, it is of particular importance to develop OER catalysts with high activity and durability.At present, noble metal-based materials for OER, such as ruthenium oxides, are still ranking the highest level. [16,17] Meanwhile, nonnoble metal compounds, for instance, transition metal oxides, [18][19][20][21] perovskite, [22,23] hydroxide, [24,25] nitrides, [26,27] borates, [28,29] and so on, have also captured extensive interests for preparing high-efficient OER catalysts. Among them, the metal fluoride, mostly literature reported for supercapacitor, lithium ion battery, etc., [30][31][32][33] is rarely wielded in the field of water electrolysis, possibly due to the chemical/electrochemical instability of fluoride ions and the weak bond between the metal ions and fluoride ions. Actually, fluoride ions can be easily replaced by other anions during the testing process, which is beneficial to optimize the catalytic activity by anionic reconstruction. [34] Consequently, metal fluoride is one of the most promising candidates to enhance the OER activity. Cobalt-based compounds, high-efficient catalytic activity for OER, have been considered one of the most prospective nonnoble catalysts in alkaline conditions for their low cost, rich source, and excellent corrosion resistance. [35][36][37][38][39] In addition, atomic doping or substitution can further improve its electrocatalytic performance by introducing more defects and catalytic active sites. [40][41][42] Herein, we took Fe-doped CoF 2 as research object to explore its electrocatalytic performance and catalytic mechanism in water splitting. Pristine CoF 2 was fabricated through a facile two-step reaction of hydrothermal method and chemical vapor deposition fluorination process. Furthermore, Fe 3+ was introduced into the resultant by adding iron agent into the precursor solution. The obtained Fe-doped CoF 2 revealed better electrocatalytic performance compared to pristine CoF 2 in 1 m Electrocatalytic water splitting is one of the most promising green solutions for large-scale hydrogen production, which has developed rapidly in recent years. The slow reaction rate of oxygen evolution reaction (OER) has become the bottleneck to improve the electrocatalytic efficiency. Herein, Fe-doped CoF 2 nanowire arrays on 3D nickel foam are prepared by two steps of hydrothermal reaction and fluorination process. The increa...

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“…The d band structure of the original metal can vary by the incorporation of nitrogen atoms, which could cause its electronic structure almost similar to the noble metal catalyst, and that can enhance its electrocatalytic activity, while during the formation of nitrides, the nitrogen atom tends to occupy the interstitial sites due to its small radius in the original close‐packed lattice of metal atoms, and the modified lattice can enhance the electrical conductivity, corrosion resistance and oxidation resistance . Hence, constructing metal nitride nanoarrays can enhance the activity and stability for overall water splitting . Lu and Sun's group have observed that Fe 2 Ni 2 N NPA ( NPA : Nano‐plate array) exhibits enhanced activity and stability for overall water splitting.…”

Section: Constructing Earth‐abundant 3d Nanoarrays For Efficient Overmentioning

confidence: 99%

Constructing Earth‐abundant 3D Nanoarrays for Efficient Overall Water Splitting – A Review

2019

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Constructing nanoarrays is a promising way to achieve efficient overall water-splitting for H 2 production. At first, this paper introduces the significance of constructing nanoarrays for gas evolution reactions: Constructing electrocatalyst with nanoarray structure can provide superaerophobic surface, which can lower the bubble adhesive force and bubble size by forming a discontinuous triple phase contact line (TPCL), and that can facilitate the release of gas, while it can afford abundant active sites, and that can enhance the activity and stability for gas evolution reactions. Then, we review the activity (including � 1.49 V), and stability (including � 100 h) for overall water splitting in alkaline medium of various kinds of recently reported earth-abundant 3D nanoarray bifunctional electrocatalysts. Later, we review the efficient strategies such as constructing nanoarrays with doping metals/heteroatoms, bimetallic/multi-metallic materials, metal oxides, metal phosphide/phosphate, metal nitrides, carbon, amorphous materials, metal chalcogenides (metal sulfides and selenides), coreshell/hetero/hollow structure, vacancies/defects, and wellmatched electrode pair to achieve efficient overall water splitting. Then, we review the construction of earth-abundant nanoarray bifunctional electrocatalyst for efficient overall water splitting in acid medium. Finally, we discussed the gas separation in water electrolysis.[a] Dr.

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Recent progress of transition metal nitrides for efficient electrocatalytic water splitting

Abstract: Recent advances in transition metal nitride-based catalysts for efficient electrochemical water splitting have been reviewed.

Cited by 354 publications

References 175 publications

Nanostructured Carbon Based Heterogeneous Electrocatalysts for Oxygen Evolution Reaction in Alkaline Media

Nanostructured Carbon Based Heterogeneous Electrocatalysts for Oxygen Evolution Reaction in Alkaline Media

Atomic Doping and Anion Reconstructed CoF₂ Electrocatalyst for Oxygen Evolution Reaction

Constructing Earth‐abundant 3D Nanoarrays for Efficient Overall Water Splitting – A Review

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Recent progress of transition metal nitrides for efficient electrocatalytic water splitting

Abstract: Recent advances in transition metal nitride-based catalysts for efficient electrochemical water splitting have been reviewed.

Cited by 354 publications

References 175 publications

Nanostructured Carbon Based Heterogeneous Electrocatalysts for Oxygen Evolution Reaction in Alkaline Media

Nanostructured Carbon Based Heterogeneous Electrocatalysts for Oxygen Evolution Reaction in Alkaline Media

Atomic Doping and Anion Reconstructed CoF2 Electrocatalyst for Oxygen Evolution Reaction

Constructing Earth‐abundant 3D Nanoarrays for Efficient Overall Water Splitting – A Review

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Atomic Doping and Anion Reconstructed CoF₂ Electrocatalyst for Oxygen Evolution Reaction