Nickel metal–organic framework implanted on graphene and incubated to be ultrasmall nickel phosphide nanocrystals acts as a highly efficient water splitting electrocatalyst

Yan, Liting; Jiang, Huimin; Xing, Yanlong; Wang, Ying; Liu, Dandan; Gu, Xin; Dai, Pengcheng; Li, Liangjun; Zhao, Xuebo

doi:10.1039/c7ta10218f

Cited by 171 publications

(79 citation statements)

References 81 publications

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“…[18][19][20] In the past two decades, MOFs have been shown to have variousa pplicationss uch as for gas storage, gas separation, sensors, proton conduction and optoelectronic devices. [40][41][42] Recently,h etero-NiFe bimetallic MOF was shown as ar obust electrode materialf or electrochemical OER. [27] Besides being highly crystalline, MOFs are easily recyclable and robust under numerous chemical and physicalc onditions.…”

Section: Introductionmentioning

confidence: 99%

“…[38,39] Ni(OH) 2 has been explored widely as an activee lectrocatalyst for OER activity.N evertheless, Ni-MOFsa re found to be better substitutes for Ni(OH) 2 owing to their high surface areas and tunable structures. [40][41][42] Recently,h etero-NiFe bimetallic MOF was shown as ar obust electrode materialf or electrochemical OER. [43] Further,t wo-dimensionaln ickel phthalocyanine-based MOF wass hown to exhibit remarkable catalytic activity in the alkaline medium.…”

Section: Introductionmentioning

confidence: 99%

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Isostructural Ni^II Metal–Organic Frameworks (MOFs) for Efficient Electrocatalysis of Oxygen Evolution Reaction and for Gas Sorption Properties

Konavarapu

Ghosh

Dey

et al. 2019

Chemistry A European J

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Design ands ynthesis of stable, active and cost-effective electrocatalystf or water splitting applicationsi sa n emerging area of research, given thed epletion of fossil fuels. Herein, two isostructuralN i II redox-activem etal-organic frameworks (MOFs) containing flexible tripodal trispyridyl ligand (L)a nd linear dicarboxylates such as terephthalate (TA) and 2-aminoterphthalate (H 2 NTA) are studied fort heir catalytic activity in oxygen evaluation reaction( OER). The 2D-layered MOFs form 3D hydrogen bonded frameworks containing one-dimensional hydrophilic channels that are filled with water molecules. The electrochemical studies reveal that MOFs display an efficient catalytic activity towards oxygen evolutionr eactioni na lkaline conditions with an overpotential as low as 356 mV.F urther,t hese 2D-MOFs exhibit excellenta bility to adsorb water vapor (180-230 cc g À1 at 273 K) and CO 2 (33 cc g À1 at 273 K). The presence of hydrophilic functionality in the frameworks was found to significantly enhancet he electrocatalytic activity as well as H 2 Os orption.Supporting information and the ORCID identification number(s) for the author(s) of this articlecan be found under: https://doi.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Isostructural Ni^II Metal–Organic Frameworks (MOFs) for Efficient Electrocatalysis of Oxygen Evolution Reaction and for Gas Sorption Properties

Konavarapu

Ghosh

Dey

et al. 2019

Chemistry A European J

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“…Graphene has been widely studied and explored because of its unique structural and physicochemical properties of stable structure and long cycling life . As a result, Tan et al reported a N‐doped graphene/Fe–Fe 3 C (NG/Fe–Fe 3 C) nanocomposite in 2014, which was prepared by a facile one‐pot method using MIL‐100 (Fe) (as shown in Figure b).…”

Section: Batteriesmentioning

confidence: 99%

Applications of Metal–Organic‐Framework‐Derived Carbon Materials

et al. 2018

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production, especially for hydroelectricity, sunlight, and wind energy, which cannot be gathered or released when they are needed. [5][6][7][8] Electrochemical energy storage devices provide a promising approach for the storage of electric energy from these sources. [9][10][11] Currently, carbonaceous materials have attracted much interest for their extensive applications including adsorption, [12] catalysis, [13] batteries, [14] fuel cells, [15,16] supercapacitors, [17,18] and drug delivery and imaging. [19] In addition, some sensors are also one of the important applications of carbonaceous materials, because they are closely related to human health. [20,21] For instance, Emran and co-workers [22] constructed ultrasensitive biosensors with N-doped mesoporous carbon (NMC)-based electrodes for in vitro monitoring of DA released from living cells. With the further study of the experiment, they also designed a series of S-doped carbon materials for a wider detection of DA, UA (uric acid), and AA (ascorbic acid). [23,24] The advantages of easy preparing, nontoxic and excellent electrical conductivity of carbonaceous materials, which are rare among energy storage materials, make carbonaceous materials superior to most of the energy storage materials. [25][26][27] There are varieties of approaches for the preparation of carbon materials, such as directly carbonizing from organic precursors, physically or chemically carbonizing from carbon, template methods using zeolites and mesoporous silica, solvothermal and hydrothermal methods with elevated temperature, the electrical arc methods, and chemical vapor decomposition (CVD) methods. [28][29][30][31][32][33][34] Among all these approaches, directly carbonizing from organic precursors is the most frequently used method to prepare nanoporous carbons (NPCs) due to its flexibility and simplicity. [35][36][37] However, these NPC materials present certain drawbacks, such as low surface areas, disordered structures, and ununiformed sizes, which will greatly limit their applications. [25] As studies have progressed, researchers found that carbon materials derived from metalorganic frameworks (MOFs) could overcome these limitations.Metal-organic frameworks, which are also named porous coordination polymers (PCPs), are crystalline porous materials with periodic network structures formed by metal ions (or metal clusters) and organic ligands. [38][39][40][41][42] They are usually prepared by solvothermal methods and used as precursors or templates to form nanostructured materials. [43][44][45] So far, many researchers have highlighted the advantages of MOFs. For Carbon materials derived from metal-organic frameworks (MOFs) have attracted much attention in the field of scientific research in recent years because of their advantages of excellent electron conductivity, high porosity, and diverse applications. Tremendous efforts are devoted to improving their chemical and physical properties, including optimizing the morphology and structure of the carbon materials, compositing them wi...

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“…Therefore, a well‐established effective technology, water electrolysis is used to yield clean hydrogen energy . However, the practical hydrogen evolution activity is limited because of the sluggish reaction kinetics of both HER and OER, which require high overpotentials and show low efficiency . Hence, it is of great importance to decrease the overpotentials of water splitting by using electrocatalysts.…”

Section: Introductionmentioning

confidence: 99%

“…[10] However, the practical hydrogen evolution activity is limited because of the sluggish reaction kinetics of both HER and OER, which require high overpotentials and show low efficiency. [10][11][12] Hence, it is of great importance to decrease the overpotentials of water splitting by using electrocatalysts. Up to now, for the HER and OER, the most excellent electrocatalysts are still noble metals, such as platinum, platinumbased materials, iridium, and ruthenium oxides.…”

Section: Introductionmentioning

confidence: 99%

Zn−Co−S Colloidal Nanocrystal Clusters as Efficient and Durable Bifunctional Electrocatalysts For Full Water Splitting

Zhao

Xing

et al. 2019

ChemNanoMat

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The synthesis of efficient, cost‐effective, and non‐toxic bifunctional electrocatalysts for oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) is highly needed for renewable energy related processes (conversion and storage). In the present work, we report a simple and straightforward one‐step hydrothermal strategy to prepare Zn−Co−S colloidal nanocrystal clusters (CNCs) for total water splitting (OER and HER activity) for the first time. The Zn−Co−S CNCs consist of a large number of interconnected nanoparticles forming spherical structures, which is very helpful for the electrochemical activity. Under alkaline conditions, the Zn−Co−S electrocatalyst demonstrates an excellent electrocatalytic activity by driving 10 mA cm−2 at 157 mV HER and 320 mV OER overpotentials, respectively. The Zn−Co−S catalyst electrode maintained the catalytic activity for 12 h exhibiting a good electrochemical stability. Furthermore, as fabricated two‐electrode alkaline water‐splitting system of Zn−Co−S//Zn−Co−S affords 10 mA cm−2 at a voltage of 1.64 V.

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Nickel metal–organic framework implanted on graphene and incubated to be ultrasmall nickel phosphide nanocrystals acts as a highly efficient water splitting electrocatalyst

Abstract: Ultrasmall Ni2P/rGO was synthesized using template-confinement strategy of MOFs and served as a highly efficient electrocatalyst for overall water splitting.

Cited by 171 publications

References 81 publications

Isostructural Ni^II Metal–Organic Frameworks (MOFs) for Efficient Electrocatalysis of Oxygen Evolution Reaction and for Gas Sorption Properties

Isostructural Ni^II Metal–Organic Frameworks (MOFs) for Efficient Electrocatalysis of Oxygen Evolution Reaction and for Gas Sorption Properties

Applications of Metal–Organic‐Framework‐Derived Carbon Materials

Zn−Co−S Colloidal Nanocrystal Clusters as Efficient and Durable Bifunctional Electrocatalysts For Full Water Splitting

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Nickel metal–organic framework implanted on graphene and incubated to be ultrasmall nickel phosphide nanocrystals acts as a highly efficient water splitting electrocatalyst

Abstract: Ultrasmall Ni2P/rGO was synthesized using template-confinement strategy of MOFs and served as a highly efficient electrocatalyst for overall water splitting.

Cited by 171 publications

References 81 publications

Isostructural NiII Metal–Organic Frameworks (MOFs) for Efficient Electrocatalysis of Oxygen Evolution Reaction and for Gas Sorption Properties

Isostructural NiII Metal–Organic Frameworks (MOFs) for Efficient Electrocatalysis of Oxygen Evolution Reaction and for Gas Sorption Properties

Applications of Metal–Organic‐Framework‐Derived Carbon Materials

Zn−Co−S Colloidal Nanocrystal Clusters as Efficient and Durable Bifunctional Electrocatalysts For Full Water Splitting

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Product

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Isostructural Ni^II Metal–Organic Frameworks (MOFs) for Efficient Electrocatalysis of Oxygen Evolution Reaction and for Gas Sorption Properties

Isostructural Ni^II Metal–Organic Frameworks (MOFs) for Efficient Electrocatalysis of Oxygen Evolution Reaction and for Gas Sorption Properties