Free-standing nanoporous NiMnFeMo alloy: An efficient non-precious metal electrocatalyst for water splitting

Líu, Hao; Xi, Cong; Xin, Jinghua; Zhang, Guoliang; Zhang, Shaofei; Zhang, Zhenyu; Huang, Qin; Li, Jianxin; Liu, Hui; Kang, Jianli

doi:10.1016/j.cej.2020.126530

Cited by 109 publications

(51 citation statements)

References 54 publications

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“…Therefore, more complex alloy compositions (from unitary to binary and finally to ternary) would offer more possibilities to further enhance the electrocatalytic performance. [ 42 ]…”

Section: Ng Encapsulated Non‐precious Metal Based Electrocatalystsmentioning

confidence: 99%

MOFs‐Derived N‐Doped Carbon‐Encapsulated Metal/Alloy Electrocatalysts to Tune the Electronic Structure and Reactivity of Carbon Active Sites^†

Yang

Jiang

et al. 2021

Chin. J. Chem.

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Despite progress over the past few years in developing efficient low‐cost catalysts, precious metals are still the best catalysts for hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and oxygen reduction reaction (ORR). However, the natural scarcity and high cost greatly hamper their large‐scale commercialization. The combination of graphene shell with metal core could tune the electronic structure of carbon active sites. Recently, nitrogen doped graphene encapsulated metal or alloy (M@NG) has emerged as novel and fascinating electrocatalysts. In this review, we focus on some recent advances in designing M@NG electrocatalysts for HER, OER and ORR through tuning electronic structure and activity of carbon active sites. We have summarized some facile and universal strategy for synthesizing various M@NG via direct annealing of metal‐organic frameworks (MOFs). With elaborated MOFs precursor design, careful control over the nitrogen doping level, metal element types and alloy structure, the electronic structure of carbon active sites can be rationally tuned to optimize activity for different electrochemical reactions. We hope this review can provide new insights into the design of M@NG with high catalytic activity.

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“…Therefore, more complex alloy compositions (from unitary to binary and finally to ternary) would offer more possibilities to further enhance the electrocatalytic performance. [ 42 ]…”

Section: Ng Encapsulated Non‐precious Metal Based Electrocatalystsmentioning

confidence: 99%

MOFs‐Derived N‐Doped Carbon‐Encapsulated Metal/Alloy Electrocatalysts to Tune the Electronic Structure and Reactivity of Carbon Active Sites^†

Yang

Jiang

et al. 2021

Chin. J. Chem.

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“…106,[155][156][157][158] Overall, water splitting cell with these transition metal-based catalysts also yield good performance with some that are comparable to the RuO 2 or IrO 2 jj Pt/C cell but mostly within a small current density range from 10 to 100 mA/cm 2 . 77,106,153,157,159,160 Much recently, several Ni-and Co-containing bifunctional catalysts were further investigated for their halfcell performance towards water splitting in 1 M KOH electrolyte. Ashok et al 72 utilized the cobalt sulfide Co 9 S 8 nanowire trapped in an N-doped MWCNT.…”

Section: Potential Of Bifunctional Water Splitting Electrocatalysts F...mentioning

confidence: 99%

Recent developments on transition metal–based electrocatalysts for application in anion exchange membrane water electrolysis

Sulaiman

Wong

Loh

2021

Intl J of Energy Research

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Anion exchange membrane water electrolyzer (AEMWE) is a promising technology in water electrolysis for the production of green hydrogen. Unlike conventional alkaline water electrolyzers (AWE), AEMWEs utilize mild alkaline conditions and anion exchange membranes as separators and ionic conductors, respectively. However, the largest merit of AEMWE is the utilization of lowcost transition metals as electrocatalysts for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Achieving excellent AEMWE performance using highly active and robust transition metal electrocatalysts is desired for lowering the fabrication cost and realizing the successful commercialization of AEMWE. Water splitting efficiency in the AEMWE largely depends on the kinetics of the HER and OER catalysts. Such a condition requires proper understanding of the reaction mechanisms, careful design and optimization of catalyst materials, and maintenance of catalyst durability under AEMWE conditions during long-term operation. This review discussed recent transition metal HER, OER, and bifunctional water splitting electrocatalysts applied within the actual AEMWE membrane electrode assembly (MEA), where their influence toward the electrolyzer cell performance is highlighted. Additionally, the MEA fabrication methods are briefly addressed.From the review, potential electrocatalyst materials and remaining challenges are identified to provide for future improvements on the AEMWE system.

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“…They show better conductivity and surface and absence of paper binders, allowing ion or proton diffusion to occur quickly. We would pay much attention to 3D self-supported non-precious electrocatalysts since this is the first move towards commercial application [54][55][56].…”

Section: Evaluation Of Electrocatalystsmentioning

confidence: 99%

Earth-Abundant Electrocatalysts for Water Splitting: Current and Future Directions

Shamsah¹,

Sami²

2021

Catalysts

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Of all the available resources given to mankind, the sunlight is perhaps the most abundant renewable energy resource, providing more than enough energy on earth to satisfy all the needs of humanity for several hundred years. Therefore, it is transient and sporadic that poses issues with how the energy can be harvested and processed when the sun does not shine. Scientists assume that electro/photoelectrochemical devices used for water splitting into hydrogen and oxygen may have one solution to solve this hindrance. Water electrolysis-generated hydrogen is an optimal energy carrier to store these forms of energy on scalable levels because the energy density is high, and no air pollution or toxic gas is released into the environment after combustion. However, in order to adopt these devices for readily use, they have to be low-cost for manufacturing and operation. It is thus crucial to develop electrocatalysts for water splitting based on low-cost and land-rich elements. In this review, I will summarize current advances in the synthesis of low-cost earth-abundant electrocatalysts for overall water splitting, with a particular focus on how to be linked with photoelectrocatalytic water splitting devices. The major obstacles that persist in designing these devices. The potential future developments in the production of efficient electrocatalysts for water electrolysis are also described.

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Free-standing nanoporous NiMnFeMo alloy: An efficient non-precious metal electrocatalyst for water splitting

Cited by 109 publications

References 54 publications

MOFs‐Derived N‐Doped Carbon‐Encapsulated Metal/Alloy Electrocatalysts to Tune the Electronic Structure and Reactivity of Carbon Active Sites^†

MOFs‐Derived N‐Doped Carbon‐Encapsulated Metal/Alloy Electrocatalysts to Tune the Electronic Structure and Reactivity of Carbon Active Sites^†

Recent developments on transition metal–based electrocatalysts for application in anion exchange membrane water electrolysis

Earth-Abundant Electrocatalysts for Water Splitting: Current and Future Directions

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Free-standing nanoporous NiMnFeMo alloy: An efficient non-precious metal electrocatalyst for water splitting

Cited by 109 publications

References 54 publications

MOFs‐Derived N‐Doped Carbon‐Encapsulated Metal/Alloy Electrocatalysts to Tune the Electronic Structure and Reactivity of Carbon Active Sites†

MOFs‐Derived N‐Doped Carbon‐Encapsulated Metal/Alloy Electrocatalysts to Tune the Electronic Structure and Reactivity of Carbon Active Sites†

Recent developments on transition metal–based electrocatalysts for application in anion exchange membrane water electrolysis

Earth-Abundant Electrocatalysts for Water Splitting: Current and Future Directions

Contact Info

Product

Resources

About

MOFs‐Derived N‐Doped Carbon‐Encapsulated Metal/Alloy Electrocatalysts to Tune the Electronic Structure and Reactivity of Carbon Active Sites^†

MOFs‐Derived N‐Doped Carbon‐Encapsulated Metal/Alloy Electrocatalysts to Tune the Electronic Structure and Reactivity of Carbon Active Sites^†