Self‐Assemble and In Situ Formation of Ni1−xFexPS3 Nanomosaic‐Decorated MXene Hybrids for Overall Water Splitting

Du, Zhi; Dinh, Khang Ngoc; Liang, Qinghua; Zheng, Yun; Luo, Yubo; Zhang, Jianli; Yan, Qingyu

doi:10.1002/aenm.201801127

Cited by 220 publications

(135 citation statements)

References 66 publications

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“…The CoP‐Co 2 P@PC/PG||CoP‐Co 2 P@PC/PG device ( Figure A) only requires a cell voltage of 1.567 V to drive the OWS to reach a current density of 10 mA cm −2 , superior to Pt/C||IrO 2 pair (1.576 V) and their pure‐phase counterparts based devices (Figure S21, Supporting Information). Also, the OWS activity of CoP‐Co 2 P@PC/PG NHs is better than other reported bifunctional catalysts, such as Cu 0.3 Co 2.7 P/NC (1.620 V for 10 mA cm −2 ), FeCoP nanosheets (1.600 V for 10 mA cm −2 ), NiFeSP/NF (1.580 V for 10 mA cm −2 ), Ni 1− x Fe x PS 3 @MXene (1.650 V for 10 mA cm −2 ), NiCo 2 S 4 NW/NF(1.630 V for 10 mA cm −2 ), and so on. The detailed comparison of OWS activity of CoP‐Co 2 P@PC/PG NHs with other reported catalysts is provided in Table S3 (Supporting Information).…”

Section: Resultsmentioning

confidence: 72%

Cobalt Phosphides Nanocrystals Encapsulated by P‐Doped Carbon and Married with P‐Doped Graphene for Overall Water Splitting

Yang

Guo

Zhao

et al. 2019

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As one class of important functional materials, transition metal phosphides (TMPs) nanostructures show promising applications in catalysis and energy storage fields. Although great progress has been achieved, phase‐controlled synthesis of cobalt phosphides nanocrystals or related nanohybrids remains a challenge, and their use in overall water splitting (OWS) is not systematically studied. Herein, three kinds of cobalt phosphides nanocrystals encapsulated by P‐doped carbon (PC) and married with P‐doped graphene (PG) nanohybrids, including CoP@PC/PG, CoP‐Co2P@PC/PG, and Co2P@PC/PG, are obtained through controllable thermal conversion of presynthesized supramolecular gels that contain cobalt salt, phytic acid, and graphene oxides at proper temperature under Ar/H2 atmosphere. Among them, the mixed‐phase CoP‐Co2P@PC/PG nanohybrids manifest high electrocatalytic activity toward both hydrogen and oxygen evolution in alkaline media. Remarkably, using them as bifunctional catalysts, the fabricated CoP‐Co2P@PC/PG||CoP‐Co2P@PC/PG electrolyzer only needs a cell voltage of 1.567 V for driving OWS to reach the current density at 10 mA cm−2, superior to their pure‐phase counterparts and recently reported bifunctional catalysts based devices. Also, such a CoP‐Co2P@PC/PG||CoP‐Co2P@PC/PG device exhibits outstanding stability for OWS. This work may shed some light on optimizing TMPs nanostructures based on phase engineering, and promote their applications in OWS or other renewable energy options.

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Section: Resultsmentioning

confidence: 72%

Cobalt Phosphides Nanocrystals Encapsulated by P‐Doped Carbon and Married with P‐Doped Graphene for Overall Water Splitting

Yang

Guo

Zhao

et al. 2019

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122

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“…It can be ascribed by that Cu 3 P, Cu 3 N and NPSC constituents are transformed into copper oxides/hydroxides, carbon oxides and remains vacancies in Cu 3 NÀ Cu 3 P/ NPSCNWs@NF electrode during the oxygen evolution reaction process, these copper oxides/hydroxides and vacancies can further enhance the electrocatalytic performance. [71][72][73][74][75] Moreover, the faradaic efficiency during the water splitting process are nearly 100 % ( Figure S14). Furthermore, the electro-conductivity of NPSC, Cu 3 N (111) and Cu 3 P (300) components were preliminary proved by the DFT simulations.…”

Section: Overall Water Splitting Under Alkaline Electrolytementioning

confidence: 99%

MOF‐Derived Copper Nitride/Phosphide Heterostructure Coated by Multi‐Doped Carbon as Electrocatalyst for Efficient Water Splitting and Neutral‐pH Hydrogen Evolution Reaction

et al. 2020

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Efficient and robust electrocatalysts composed of earth‐abundant elements to replace noble metals is highly essential for cost‐effective production of hydrogen from water splitting. Herein, we demonstrate the fabrication of SO42− anions bridged MOF‐derived Cu3N−Cu3P heterostructure coated by ultrathin N, P, S‐tri‐doped carbon (NPSC) on nickel foam (Cu3N−Cu3P/NPSCNWs@NF) via an interface reconstruction strategy. The first‐principle simulation demonstrates that both Cu3N, Cu3P and NPSC own good electrical conductivity, suggesting these species can lead to efficient electrocatalytic performance. The remarkable features of high intrinsic conductivity and interfacial heterostructures at Cu3N−Cu3P/NPSCNWs@NF have ensured excellent water splitting electrocatalytic activity with a low potential of 1.54 V at 10 mA cm−2 in 1 M KOH over 24 h, and additionally the resultant electrode exhibits impressive response for HER with an ultralow potential of 109 mV at 10 mA cm−2 in neutral‐pH media over 30 h.

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“…Moreover, the possible synthesis route of the Ni/Cr 2 CO 2 catalysis was predicted, which could guide the experimental synthesis of Ni/Cr 2 CO 2 . In Yan's study, a novel hybrid consisting of nickel‐based bimetal phosphorus trisulfide (Ni 1− x Fe x PS 3 ) and MXene nanosheets was prepared (Figure c) through the self‐assembly process combining with in situ solid‐state reaction at a low temperature. The prepared Ni 0.7 Fe 0.3 PS 3 @MXene nanohybrid shows low overpotential of 282 mV and Tafel slope of 36.5 mV dec −1 for OER in 1 m KOH solution.…”

Section: Electrochemical Energy Conversion and Storage Applicationsmentioning

confidence: 99%

MXene‐Based Nanocomposites for Energy Conversion and Storage Applications

Zhang

Tian

et al. 2020

Chemistry A European J

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Novel nanomaterials and advanced nanotechnology continuously push forwardt he rapid development of sustainable energy conversion and storage equipment. An emerging family of two-dimensional transition-metal carbides, nitrides and carbonitrides, also known as MXenes, have attracted increasing attention and in depth investigation. Benefitting from their unique intrinsic properties, MXenes have attracted significant attention and they have been considered as promising candidate materials for the development of environmentally friendly energy resources. Al arge number of studies show that MXenes have great potential in energy conversiona nd storagef ields. Despite of their exceptional properties, MXenes also have some inher-ent characteristics, such as low capacities and unstabler etention performances, which severely hinder their prospect applicationsi ne nergy conversion and storage fields. In this Minireview,t he latest progress on MXenes and their hybrid composites with small molecules, polymers, carbon or metal ions, and their applicationsinenergy conversionand storage fields is highlighted, including their use in different types of batteries, supercapacitors, hydrogen/oxygene volution reactions, electromagnetic interference absorption/shielding and solar steam generation. In addition, the critical challenges and further development prospects of MXene-based materials are also introduced.The ORCID identification number(s) for the author(s) of this articlecan be found under: https://doi.

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Self‐Assemble and In Situ Formation of Ni₁₋_xFe_xPS₃ Nanomosaic‐Decorated MXene Hybrids for Overall Water Splitting

Cited by 220 publications

References 66 publications

Cobalt Phosphides Nanocrystals Encapsulated by P‐Doped Carbon and Married with P‐Doped Graphene for Overall Water Splitting

Cobalt Phosphides Nanocrystals Encapsulated by P‐Doped Carbon and Married with P‐Doped Graphene for Overall Water Splitting

MOF‐Derived Copper Nitride/Phosphide Heterostructure Coated by Multi‐Doped Carbon as Electrocatalyst for Efficient Water Splitting and Neutral‐pH Hydrogen Evolution Reaction

MXene‐Based Nanocomposites for Energy Conversion and Storage Applications

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