Superb water splitting activity of the electrocatalyst Fe3Co(PO4)4 designed with computation aid

Sultan, Siraj; Ha, Miran; Kim, Dong Yeon; Tiwari, Jitendra N.; Myung, Chang Woo; Meena, Abhishek; Shin, Tae Joo; Chae, Keun Hwa; Kim, Kwang S.

doi:10.1038/s41467-019-13050-3

Cited by 133 publications

(94 citation statements)

References 50 publications

(53 reference statements)

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“…Various nanostructure of MoS 2 has been developed and applied in many fields especially for HER, which exhibits an excellent HER performance demonstrated by both computationally and experimentally. Additionally, many researches indicate that edges in MoS 2 nanostructure are the initial HER active sites 49–66. Therefore, many efforts are developed to prepare MoS 2 with more exposed edge sites and improved HER activity.…”

Section: Synthesis Of Metal Chalcogenidesmentioning

confidence: 99%

“…A number of metal chalcogenides materials have been demonstrated to generate functional hybrid nanoarchitectures though different optimizing strategy, such as morphology (1D, 2D, 3D, and other morphology), structural control (porous structure, phase statue regulation, amorphous structure), electronic structure optimization (defects, vacancy, nanointerface, stress regulation), heterostructure with other nanomaterials (oxides, hydroxides, carbon materials, noble metals), and so on ( Table 2 ). 49–95 It is noteworthy that despite that they possess an excellent electrocatalytic performance for water splitting, the morphology, structure, valence state and content change of the elements, and electronic properties (conductivity, bandgap, density of states) of those metal chalcogenides should be carefully confirmed after electrocatalytic reaction of water splitting due to the inevitable oxidation will happen on the surface of the electrocatalysts during OER, and the reduction reaction will also happen under HER condition. Therefore, an in‐depth study should be made to confirm the electrocatalytic performance changes of those surface modified metal chalcogenides.…”

Section: Various Strategies Applicated In Metal Chalcogenides For Watmentioning

confidence: 99%

“…The most active catalysts for HER are platinum (Pt) based materials, while the iridium (Ir), ruthenium (Ru), and their oxides show superior OER performance, but the high price of those noble metal and limited stability make them application at the commercial scale is still challenging 43–47. Recently, various transition metal‐based catalysts exhibit excellent performance for HER and OER, especially for those metal chalcogenides show higher activity than noble metal‐based catalysts for OER 48–50. More importantly, in this review the basic mechanism for HER and OER in both acid and alkaline media are summarized ( Scheme ).…”

Section: Introductionmentioning

confidence: 97%

“…OER is a more complex reaction with four‐electrode transition and many intermediates (HO*, O*, and HOO*) (Scheme 2c,d). In generally, there are four pathways for formation O 2 (H 2 O (acid)/OH − (base) → HO* → O* → HOO* → O 2 , each step with one electron transition) under any condition 48,49. With the different activity, catalysts show different free energy for each pathway, while the step that requires the most energy become RDS.…”

Section: Introductionmentioning

confidence: 99%

“…It has a variety of morphologies and shows different catalytic properties. For example, the ultrathin MoS 2 with atomic layer thickness, especially for 1T‐MoS 2 , demonstrates comparable HER catalytic activity to Pt, in which the excellent activity can be attributed to abundant edges defects 46–59. The surface sites,60–63 defects,64,65 disulfide linkages, and triangular MoS 2 units66 can be shown amazing catalytic performance.…”

Section: Introductionmentioning

confidence: 99%

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Optimized Metal Chalcogenides for Boosting Water Splitting

et al. 2020

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splitting (2H 2 O → 2H 2 + O 2 ), consisting of hydrogen evolution and oxygen evolution reaction (HER/OER), can convert electricity to chemical energy in H 2 and O 2 for further energy applications. The practical application of overall water splitting, however, is still limited due to the lack of effective and stable catalysts to reduce reaction energy barrier and enhance Faraday efficient for both reactions. [6][7][8][9][10] Different materials have been studied for overall water splitting catalysis, like metal chalcogenides, metal carbides, oxides, etc. The transition metal carbides, especially graphene, have a better electroconductivity, ductility, and high surface area which display excellent performance in water splitting. [11][12][13] Oxides as another abundant species on the earth also show better water splitting performance, but their stability in hard media is not very good. [14][15][16] The layered double hydroxides (LDH) with unique structure, abundant interstratified electrons and channels for intermediate adsorption and desorption display wonderful water splitting performance. [17][18][19][20] Additionally, the metalorganic frameworks (MOFs) and their based nanocrystals as newly nanomaterials have got much attention in various fields, but their structure limited the active sites exposure for the complete coordinative metal sites. [21][22][23][24][25] Therefore, it is important to enable the cost-effective, large-scale production of these catalysts, and further improve the performance and efficiency of overall water splitting.Transition metal chalcogenides have many different compositions with various lattice structure, while those materials also have unique electronic structures. [26] Based on those superior properties, the transition metal chalcogenides show promising application in many energy applications, [27] such as electrochemical catalysis, photocatalysis, metal-air batteries, and other energy conversion reactions. Especially for their abundant defects sties, [26][27][28] tunable electronic structure, [29][30][31][32] and various morphology, [33][34][35][36][37] the transition metal chalcogenides exhibit boosting performance for water splitting. However, they still have some disadvantages, such as poor conductivity, activity, and stability, in water splitting limited their large-scale industrial application. [38][39][40][41][42] How to synthesize the active and stable transition metal chalcogenides is still a big challenge for wide application. In this Review, the several promising strategies are designed to prepare the active and stable transition metal chalcogenides (Scheme 1). → 2H 2 + O 2 ) is a very promising avenue to effectively and environmentally friendly produce highly pure hydrogen (H 2 ) and oxygen (O 2 ) at a large scale. Different materials have been developed to enhance the efficiency for water splitting. Among them, chalcogenides with unique atomic arrangement and high electronic transport show interesting catalytic properties in various electrochemical reactions, such as the ...

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Section: Synthesis Of Metal Chalcogenidesmentioning

confidence: 99%

Section: Various Strategies Applicated In Metal Chalcogenides For Watmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Optimized Metal Chalcogenides for Boosting Water Splitting

et al. 2020

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Simple and Scalable Mechanochemical Synthesis of Noble Metal Catalysts with Single Atoms toward Highly Efficient Hydrogen Evolution

Jin

Sultan

et al. 2020

Adv Funct Materials

169

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Designing a facile strategy to access active and atomically dispersed metallic catalysts are highly challenging for single atom catalysts (SACs). Herein, a simple and fast approach is demonstrated to construct Pt catalysts with single atoms in large quantity via ball milling Pt precursor and N‐doped carbon support (K2PtCl4@NC‐M; M denotes ball‐milling). The as‐prepared K2PtCl4@NC‐M only requires a low overpotential of 11 mV and exhibits 17‐fold enhanced mass activity for the electrochemical hydrogen evolution compared to commercial 20 wt% Pt/C. The superior hydrogen evolution reaction (HER) catalytic activity of K2PtCl4@NC‐M can be attributed to the generation of Pt single atoms, which improves the utilization efficiency of Pt atoms and the introduction of Pt‐N2C2 active sites with near‐zero hydrogen adsorption energy. This viable ball milling method is found to be universally applicable to the fabrication of other single metal atoms, for example, rhodium and ruthenium (such as Mt‐N2C2, where Mt denotes single metal atom). This strategy also provides a promising and practical avenue toward large‐scale energy storage and conversion application.

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In Situ Reconstruction of Helical Iron Borophosphate Precatalyst toward Durable Industrial Alkaline Water Electrolysis and Selective Oxidation of Alcohols

Yang,

Vijaykumar,

Chen

et al. 2023

Adv Funct Materials

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Iron‐based (pre)catalysts have attracted enormous attention for various electrooxidation reactions due to the low cost, high abundance, and multiple accessible redox states of iron. Herein, a well‐defined helical iron borophosphate (LiFeBPO) is developed as an electro(pre)catalyst for the oxygen evolution reaction (OER) and selective alcohol oxidation. When deposited on nickel foam (NF), LiFeBPO exhibits an exceptional OER performance at ambient conditions attaining a current density of 100 mA cm−2 at ≈276 mV overpotential in 1 m KOH. Notably, this anode sustains durable alkaline water electrolysis at 500 mA cm−2 for over 330 h under industrial conditions (6 m KOH and 85 °C). In –situ and ex situ investigations reveal a deep reconstruction of LiFeBPO during OER, which transforms into a 3D open porous skeleton assembled by ultrasmall, low‐crystalline α‐FeOOH nanoparticles (interfacing with NiOOH of NF). This structure contributes to exposing accessible surface active sites, as well as accelerating mass transport and bubble detachment. Moreover, this electrode also catalyzes the electrooxidation of alcohols (methanol, ethylene glycol, and glycerol) to formic acid (FA) with high selectivity and full conversion. This study provides promising solutions for designing suitable anodes for the simultaneous production of green hydrogen fuel and value–added FA from electrooxidation reactions.

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Superb water splitting activity of the electrocatalyst Fe3Co(PO4)4 designed with computation aid

Cited by 133 publications

References 50 publications

Optimized Metal Chalcogenides for Boosting Water Splitting

Optimized Metal Chalcogenides for Boosting Water Splitting

Simple and Scalable Mechanochemical Synthesis of Noble Metal Catalysts with Single Atoms toward Highly Efficient Hydrogen Evolution

In Situ Reconstruction of Helical Iron Borophosphate Precatalyst toward Durable Industrial Alkaline Water Electrolysis and Selective Oxidation of Alcohols

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