Electrodeposited Ni Co P hierarchical nanostructure as a cost-effective and durable electrocatalyst with superior activity for bifunctional water splitting

Darband, Ghasem Barati; Mahmood, Asif; Hyun, Suyeon; Rouhaghdam, A. Sabour; Shanmugam, Sangaraju

doi:10.1016/j.jpowsour.2019.04.050

Cited by 135 publications

(49 citation statements)

References 62 publications

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“…[ 152 ] Carving CoFe–P from open frameworks such as Prussian Blue Analogue (PBA) ( Figure a) allows for a higher ECSA which encourages a faster electron transfer and electrolyte adsorption, while permitting better dissociation of evolved gas bubbles for better material stability. [ 155 ]…”

Section: Bifunctional Amorphous Electrocatalystsmentioning

confidence: 99%

Section: Bifunctional Amorphous Electrocatalystsmentioning

confidence: 99%

“…[ 76,155 ] Embedding NiCoP in stable, high surface area supports such as Ni nanocones (Figure 13b) can reduce the cell voltage required (1.53 V at 10 mA cm −2 ) while delivering good material stability (100 h at 10 mA cm −2 ), as shown in Figure 13c,d. [ 155 ]…”

Section: Bifunctional Amorphous Electrocatalystsmentioning

confidence: 99%

“…Reports on the optimal ratio of Ni:Co diverges greatly from around 1:1 to 9:1 for various nanostructures, hence it is imperative for a separate optimization process to be carried out for each type of NiCoP catalyst design. [ 76,155 ] Embedding NiCoP in stable, high surface area supports such as Ni nanocones (Figure 13b) can reduce the cell voltage required (1.53 V at 10 mA cm −2 ) while delivering good material stability (100 h at 10 mA cm −2 ), as shown in Figure 13c,d. [ 155 ]…”

Section: Bifunctional Amorphous Electrocatalystsmentioning

confidence: 99%

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Earth‐Abundant Amorphous Electrocatalysts for Electrochemical Hydrogen Production: A Review

Zhang

Soo

Tan

et al. 2021

Adv Energy and Sustain Res

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Electrochemical water splitting provides a promising approach to store renewable electricity in the form of hydrogen on a grand scale. However, the current techniques for large‐scale electrochemical hydrogen production rely on the use of expensive and scarce noble‐metal catalysts making it uncompetitive to traditional methods using fossil fuels. Thus, replacing noble‐metal electrocatalysts with cheap materials made of abundant elements holds the key to achieve the cost‐effectiveness. Recently, amorphous electrocatalysts emerged as promising candidates due to their unique physical and chemical properties compared with their crystalline counterparts leading to superior catalytic performance. Given the rapid advances made in the design, synthesis, and development of amorphous catalysts, namely monometallic and multimetallic borides, sulfides, phosphides, oxides, and hydroxides based on transition metals, the recent progress on compositional designs, microstructure, morphology, electronic properties, and interaction with host materials are reviewed critically. Special attention is paid to uncover the main strategies adopted in each material category and the underlying structure–property relationship that lead to improved hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) performances. As a result, guidance for the design and synthesis of novel amorphous electrocatalysts with high performance for large‐scale electrochemical water splitting application is provided.

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Section: Bifunctional Amorphous Electrocatalystsmentioning

confidence: 99%

Section: Bifunctional Amorphous Electrocatalystsmentioning

confidence: 99%

Section: Bifunctional Amorphous Electrocatalystsmentioning

confidence: 99%

Section: Bifunctional Amorphous Electrocatalystsmentioning

confidence: 99%

See 2 more Smart Citations

Earth‐Abundant Amorphous Electrocatalysts for Electrochemical Hydrogen Production: A Review

Zhang

Soo

Tan

et al. 2021

Adv Energy and Sustain Res

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“…Since P compounds can be captured by acting as protons, while promoting the formation of peroxides intermediate OER. [16][17][18] Simultaneously, phosphides can be partially oxidized at the oxidation potential, and these intermediate oxidation states, as seen in oxides and phosphates, all have high OER capabilities. As a consequence, metal phosphides have good electrocatalytic properties.…”

Section: Introductionmentioning

confidence: 99%

Rational construction of free-standing P-doped Fe₂O₃ nanowire arrays as highly effective electrocatalyst for overall water splitting

Yong

Qian

et al. 2021

RSC Adv.

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Bifunctional Heterostructured Transition Metal Phosphides for Efficient Electrochemical Water Splitting

Zhang

Maijenburg

et al. 2020

Adv Funct Materials

404

273

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Reducing green hydrogen production costs is essential for developing a hydrogen economy. Developing cost-effective electrocatalysts for water electrolysis is thus of great research interest. Among various material candidates, transition metal phosphides (TMP) have emerged as robust bifunctional electrocatalysts for both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) due to their various phases and tunable electronic structure. Recently, heterostructured catalysts have exhibited significantly enhanced activities toward HER/OER. The enhancement can be attributed to the increased amount of accessible active sites, accelerated mass/charge transfer, and optimized adsorption of intermediates, which arise from the synergistic effects of the heterostructure. Herein, a comprehensive overview of the recent progress of bifunctional TMP-based heterostructure is introduced to provide an insight into their preparation and corresponding reaction mechanisms. It starts with summarizing general fundamental aspects of HER/OER and the synergistic effect of heterostructures for enhanced catalytic activity. Next, the innovational strategies to design and construct bifunctional TMP-based heterostructures with enhanced overall water splitting activity, as well as the related mechanisms, are discussed in detail. Finally, a summary and perspective for further opportunities and challenges are highlighted for the further development of bifunctional TMP-based heterostructures from the points of practical application and mechanistic studies.

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Electrodeposited Ni Co P hierarchical nanostructure as a cost-effective and durable electrocatalyst with superior activity for bifunctional water splitting

Cited by 135 publications

References 62 publications

Earth‐Abundant Amorphous Electrocatalysts for Electrochemical Hydrogen Production: A Review

Earth‐Abundant Amorphous Electrocatalysts for Electrochemical Hydrogen Production: A Review

Rational construction of free-standing P-doped Fe₂O₃ nanowire arrays as highly effective electrocatalyst for overall water splitting

Bifunctional Heterostructured Transition Metal Phosphides for Efficient Electrochemical Water Splitting

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Electrodeposited Ni Co P hierarchical nanostructure as a cost-effective and durable electrocatalyst with superior activity for bifunctional water splitting

Cited by 135 publications

References 62 publications

Earth‐Abundant Amorphous Electrocatalysts for Electrochemical Hydrogen Production: A Review

Earth‐Abundant Amorphous Electrocatalysts for Electrochemical Hydrogen Production: A Review

Rational construction of free-standing P-doped Fe2O3 nanowire arrays as highly effective electrocatalyst for overall water splitting

Bifunctional Heterostructured Transition Metal Phosphides for Efficient Electrochemical Water Splitting

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Rational construction of free-standing P-doped Fe₂O₃ nanowire arrays as highly effective electrocatalyst for overall water splitting