Sub-1.1 nm ultrathin porous CoP nanosheets with dominant reactive {200} facets: a high mass activity and efficient electrocatalyst for the hydrogen evolution reaction

Zhang, Chao; Huang, Yi; Yu, Yifu; Zhang, Jingfang; Zhuo, Sifei; Zhang, Bin

doi:10.1039/c6sc05687c

Cited by 256 publications

(157 citation statements)

References 59 publications

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“…These pioneering works render TMPs to be a hotspot in energy‐related electrocatalysis. Successively, Zhang and co‐workers prepared the ultrathin CoP nanosheets with dominant reactive facets via a chemical transformation strategy . From the fast Fourier transform (FFT) pattern (Figure b inset), a porous CoP nanosheet was in a single crystalline form with a preferential [100] orientation.…”

Section: Modulated Strategies For Tmps In Electrocatalytic Her Oer mentioning

confidence: 99%

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Multifunctional Transition Metal‐Based Phosphides in Energy‐Related Electrocatalysis

Yang

Dong

Jiao

2019

Advanced Energy Materials

387

220

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The exploitation of cheap and efficient electrocatalysts is the key to make energy‐related electrocatalytic techniques commercially viable. In recent years, transition metal phosphides (TMPs) electrocatalysts have gained a great deal of attention owing to their multifunctional active sites, tunable structure, and composition, as well as unique physicochemical properties. This review summarizes the up‐to‐date progress on TMPs in energy‐related electrocatalysis from diversified synthetic methods, ingenious‐modulated strategies, and novel applications. In order to set forth theory–structure–performance relationships upon TMPs, the corresponding reaction mechanisms, electrocatalytsts' structure/composition designs and desired electrochemical performance are jointly discussed, along with demonstrating their practical electrocatalytic applications in overall water splitting, metal–air batteries, lithium–sulfur batteries, etc. In the end, some underpinning issues and research orientations of TMPs toward efficient energy‐related electrocatalysis are briefly proposed.

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Section: Modulated Strategies For Tmps In Electrocatalytic Her Oer mentioning

confidence: 99%

Section: Modulated Strategies For Tmps In Electrocatalytic Her Oer mentioning

confidence: 99%

Multifunctional Transition Metal‐Based Phosphides in Energy‐Related Electrocatalysis

Yang

Dong

Jiao

2019

Advanced Energy Materials

387

220

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“…The good activity of CoP NA/CC compare to our previous CoP NW/CC could be rationally explained by the following: (1) Compare to CoP NW/CC (0.92 mg cm −2 ), CoP NA/CC has high catalyst loading (2.6 mg cm −2 ) enhancing the catalytic efficiency. (2) The electrochemical active surface areas (ECSAs) of CoP NA/CC, CoP NW/CC and α‐Co(OH) 2 NA/CC were estimated from their double layer capacitance values . Based on the cyclic voltammograms (CVs) between −0.94 and −0.86 V (Figure S5), the capacitances of CoP NA/CC, CoP NW/CC and α‐Co(OH) 2 NA/CC are calculated as 55.6, 33.6 and 23.2 mF cm −2 , respectively, suggesting a higher surface area and hence more exposed active sites for CoP NA/CC.…”

Section: Figurementioning

confidence: 99%

Self‐Standing CoP Nanosheets Array: A Three‐Dimensional Bifunctional Catalyst Electrode for Overall Water Splitting in both Neutral and Alkaline Media

et al. 2017

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It is highly attractive, but still remains a huge challenge, to develop efficient non‐noble‐metal electrocatalysts for both the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) under neutral and alkaline conditions. In this paper, we report that CoP nanosheet arrays on carbon cloth (CoP NA/CC), derived from α‐Co(OH)2 NA/CC, behaves as a three‐dimensional bifunctional water‐splitting catalyst electrode with high activity and durability in neutral and alkaline media. Such CoP NA/CC demands overpotentials of 145 and 52 mV to afford 10 mA cm−2 for the HER in 1.0 M phosphate buffer solution (PBS) and 1.0 M KOH, respectively, with much superior activity to α‐Co(OH)2 NA/CC. It can be attributed to the more thermo‐neutral hydrogen adsorption free energy for CoP than α‐Co(OH)2, according to density functional theory calculations. This electrode also demonstrates superior OER activity over α‐Co(OH)2 NA/CC and needs overpotentials of only 536 and 300 mV to drive 10 mA cm−2 at neutral and alkaline pH, respectively. The two‐electrode water electrolyzer using CoP NA/CC as both the cathode and anode shows a 2 mA cm−2 water‐splitting current at a cell voltage of 1.60 V in 1.0 M PBS and needs 1.65 V for 10 mA cm−2 under alkaline condition with excellent stability.

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“…[25][26][27][28][29] Low-dimensional (LD) nanomaterials are of particular interest due to their anisotropic-tunable properties, which greatly influence their performances. [41][42][43][44][45][46][47] More recently, LD MOFs have attracted intensive interest and been investigated in various applications. [38][39][40] As another typical LD materials, 2D nanomaterials, such as 2D nanosheets of layered double hydroxides (LDHs), transition metal dichalcogenides (TMDs), hexagonal boron nitride, and MXenes, have attracted widespread attention since the discovery of graphene.…”

Section: Introductionmentioning

confidence: 99%

Structural Engineering of Low‐Dimensional Metal–Organic Frameworks: Synthesis, Properties, and Applications

et al. 2019

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Low‐dimensional metal–organic frameworks (LD MOFs) have attracted increasing attention in recent years, which successfully combine the unique properties of MOFs, e.g., large surface area, tailorable structure, and uniform cavity, with the distinctive physical and chemical properties of LD nanomaterials, e.g., high aspect ratio, abundant accessible active sites, and flexibility. Significant progress has been made in the morphological and structural regulation of LD MOFs in recent years. It is still of great significance to further explore the synthetic principles and dimensional‐dependent properties of LD MOFs. In this review, recent progress in the synthesis of LD MOF‐based materials and their applications are summarized, with an emphasis on the distinctive advantages of LD MOFs over their bulk counterparties. First, the unique physical and chemical properties of LD MOF‐based materials are briefly introduced. Synthetic strategies of various LD MOFs, including 1D MOFs, 2D MOFs, and LD MOF‐based composites, as well as their derivatives, are then summarized. Furthermore, the potential applications of LD MOF‐based materials in catalysis, energy storage, gas adsorption and separation, and sensing are introduced. Finally, challenges and opportunities of this fascinating research field are proposed.

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Sub-1.1 nm ultrathin porous CoP nanosheets with dominant reactive {200} facets: a high mass activity and efficient electrocatalyst for the hydrogen evolution reaction

Abstract: We present a convenient chemical conversion strategy for the synthesis of CoP porous ultrathin nanosheets as highly efficient catalysts for the hydrogen evolution reaction.

Cited by 256 publications

References 59 publications

Multifunctional Transition Metal‐Based Phosphides in Energy‐Related Electrocatalysis

Multifunctional Transition Metal‐Based Phosphides in Energy‐Related Electrocatalysis

Self‐Standing CoP Nanosheets Array: A Three‐Dimensional Bifunctional Catalyst Electrode for Overall Water Splitting in both Neutral and Alkaline Media

Structural Engineering of Low‐Dimensional Metal–Organic Frameworks: Synthesis, Properties, and Applications

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