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Kumbhare LB, Udayan APM, Singla H, Sawant SN, Ruz P, Wadawale A, Bahadur J. Hydrogen-bonded linear chain assemblies of palladium(II)-selenoether complexes: solid state aggregates as templates for nano-structural Pd 17Se 15 leading to efficient electrocatalytic activity. Dalton Trans 2023. [PMID: 37997778 DOI: 10.1039/d3dt02170j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2023]
Abstract
A analogous series of 2-(3,5-dimethylpyrazol-1-yl)phenyl substituted selenoether complexes of palladium [PdCl2(RSeC6H4dmpz)]; (R = CH2COOH (1), CH2CH2COOH (2), and CH2CH2OH (3); dmpz = dimethylpyrazole) were ably synthesized in a facile manner and exhaustively characterized. Insight into molecular structures of these complexes was keenly probed through single crystal X-ray diffraction (XRD) analysis, unfolding the structural scaffolds and laying into molecular aggregation, availed through hydrogen bonding interactions borne out of tethered protic groups. The complexes were converted to capping free palladium selenide (Pd17Se15) nanoparticles through pyrolysis and evaluated for their electrocatalytic efficacy towards the hydrogen evolution reaction (HER), the oxygen evolution reaction (OER) and methanol oxidation reaction (MOR) in alkaline medium. In an alkaline medium, PSNP1 (Pd17Se15) obtained from the hydrogen bonded aggregate of complex PdCl2L1 (1) produced good HER activity. PSNP1 had a little decrease in current density after 300 continuous cycles, which proves that the catalyst presents high stability in the recycling process. For the electrocatalytic oxidation of CH3OH, the electrocatalytic rate constant (k) obtained was 0.3 × 103 cm3 mol-1 s-1.
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Affiliation(s)
| | - Anu Prathap M Udayan
- Department of Metallurgical and Materials Engineering, Punjab Engineering College (Deemed to be University), Sector-12, Chandigarh 160012, India
| | - Hardik Singla
- Department of Metallurgical and Materials Engineering, Punjab Engineering College (Deemed to be University), Sector-12, Chandigarh 160012, India
| | - Shilpa N Sawant
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India.
| | - Priyanka Ruz
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India.
| | - Amey Wadawale
- Chemistry Division, Bhabha Atomic Research Centre, Mumbai 400 085, India.
| | - Jitendra Bahadur
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
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2
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Hu Z, Yang N, Feng Y, Xu L, Hu C, Liu H, Tian S, Yang J. Synthesis of unconventional Pd-Se nanoparticles for phase-dependent ethanol electrooxidation. Chem Commun (Camb) 2023; 59:4020-4023. [PMID: 36917447 DOI: 10.1039/d2cc06785d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
By tuning the amount of the Se precursors during the synthesis, orthorhombic PdSe2, cubic Pd17Se15, and monoclinic Pd7Se2 nanoparticles are synthesized, which show phase-dependent electrocatalysis for the ethanol oxidation reaction. This work advances the controllable synthesis of transition metal selenides and inspires their applications in electrocatalysis.
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Affiliation(s)
- Zhenya Hu
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China. .,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Niuwa Yang
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China. .,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yongjun Feng
- State Key Laboratory of Chemical Resource Engineering, Beijing Engineering Center for Hierarchical Catalysts, College of Chemistry, Beijing University of Chemical Technology, No. 15 Beisanhuan East Road, Beijing, 100029, China
| | - Lin Xu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials, Nanjing Normal University, Nanjing, 210023, P. R. China
| | - Chaoquan Hu
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China. .,Nanjing IPE Institute of Green Manufacturing Industry, Nanjing, 211100, Jiangsu, China
| | - Hui Liu
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China. .,Nanjing IPE Institute of Green Manufacturing Industry, Nanjing, 211100, Jiangsu, China
| | - Shaonan Tian
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China.
| | - Jun Yang
- State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China. .,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China.,Nanjing IPE Institute of Green Manufacturing Industry, Nanjing, 211100, Jiangsu, China
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3
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Wang Z, Pan D, Chen K, Yin X, Wang J, Cai P, Wen Z. Palladium Modified FeCoS
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Nanosheet Arrays on Ni Foam as Bifunctional Electrodes for Overall Alkaline Water Splitting. ChemistrySelect 2023. [DOI: 10.1002/slct.202204456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Affiliation(s)
- Zeen Wang
- College of Chemistry Fuzhou University Fuzhou Fujian 350002 China
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of Materials and Techniques toward Hydrogen Energy Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China
| | - Duo Pan
- College of Chemistry Fuzhou University Fuzhou Fujian 350002 China
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of Materials and Techniques toward Hydrogen Energy Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China
| | - Kai Chen
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of Materials and Techniques toward Hydrogen Energy Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China
| | - Ximeng Yin
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of Materials and Techniques toward Hydrogen Energy Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China
| | - Jun Wang
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of Materials and Techniques toward Hydrogen Energy Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China
| | - Pingwei Cai
- College of Chemistry Fuzhou University Fuzhou Fujian 350002 China
| | - Zhenhai Wen
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of Materials and Techniques toward Hydrogen Energy Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China
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4
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Wang M, Liang L, Liu X, Sun Q, Guo M, Bai S, Xu Y. Selective Semi-Hydrogenation of Alkynes on Palladium-Selenium Nanocrystals. J Catal 2023. [DOI: 10.1016/j.jcat.2023.01.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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5
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Oswal P, Sood K, Singh S, Arora A, Bahuguna A, Purohit S, Kumar A. Single source precursor route for the first graphene oxide-Pd 6P nanocomposite: application in electrochemical hydrogen evolution reaction. Dalton Trans 2022; 51:6537-6542. [PMID: 35441183 DOI: 10.1039/d2dt00347c] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
For the first time, Pd6P has been synthesised using a simple, straightforward and one-pot method i.e., thermolysis of a Pd(II) complex of a bidentate (P, N) organophosphorus ligand (anthracene-9-yl-CHN-CH2CH2-PPh2). The electrocatalyst (obtained after grafting nanospheres of Pd6P over layers of graphene oxide) shows high activity in electrochemical hydrogen evolution reactions (HER) with an overpotential of 133 mV to drive 10 mA cm-2 of cathodic current density. The GO-Pd6P nanocomposite is robust and effective for a continuous HER run for up to 16 hours.
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Affiliation(s)
- Preeti Oswal
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, India.
| | - Kritika Sood
- Institute of Nano Science and Technology (INST) Mohali, Punjab, India
| | - Siddhant Singh
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, India.
| | - Aayushi Arora
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, India.
| | - Anurag Bahuguna
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, India.
| | - Suraj Purohit
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, India.
| | - Arun Kumar
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, India.
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Si Y, Guo ZY, Meng Y, Li HH, Chen L, Zhang AY, Gu CH, Li WW, Yu HQ. Reusing Sulfur-Poisoned Palladium Waste as a Highly Active, Nonradical Fenton-like Catalyst for Selective Degradation of Phenolic Pollutants. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:564-574. [PMID: 34918924 DOI: 10.1021/acs.est.1c05048] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Recycling of deactivated palladium (Pd)-based catalysts can not only lower the economic cost of their industrial use but also save the cost for waste disposal. Considering that the sulfur-poisoned Pd (PdxSy) with a strong Pd-S bond is difficult to regenerate, here, we propose a direct reuse of such waste materials as an efficient catalyst for decontamination via Fenton-like processes. Among the PdxSy materials with different poisoning degrees, Pd4S stood out as the most active catalyst for peroxymonosulfate activation, exhibiting pollutant-degradation performance rivaling the Pd and Co2+ benchmarks. Moreover, the incorporated S atom was found to tune the surface electrostatic potentials and charge densities of the Pd active site, triggering a shift in catalytic pathway from surface-bound radicals to predominantly direct electron transfer pathway that favors a highly selective oxidation of phenols. The catalyst stability was also improved due to the formation of strong Pd-S bond that reduces corrosion. Our work paves a new way for upcycling of Pd-based industrial wastes and for guiding the development of advanced oxidation technologies toward higher sustainability.
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Affiliation(s)
- Yang Si
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
- Suzhou Institute for Advance Research of USTC, USTC-CityU Joint Advanced Research Center, Suzhou 215123, China
| | - Zhi-Yan Guo
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
- Suzhou Institute for Advance Research of USTC, USTC-CityU Joint Advanced Research Center, Suzhou 215123, China
| | - Yan Meng
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Hui-Hui Li
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Lin Chen
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Ai-Yong Zhang
- Anhui Engineering Laboratory for Rural Water Environment and Resources, School of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei 230009, China
| | - Chao-Hai Gu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Wen-Wei Li
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
- Suzhou Institute for Advance Research of USTC, USTC-CityU Joint Advanced Research Center, Suzhou 215123, China
| | - Han-Qing Yu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
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7
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Preparation and characterization of colloidal Pd17Se15 nanoparticles from a novel Pd(II) pyridyl selenoether molecular precursor. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2021.120668] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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8
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Preformed molecular complexes of metals with organoselenium ligands: Syntheses and applications in catalysis. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213885] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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9
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Arora A, Oswal P, Kumar Rao G, Kumar S, Kumar A. Organoselenium ligands for heterogeneous and nanocatalytic systems: development and applications. Dalton Trans 2021; 50:8628-8656. [PMID: 33954317 DOI: 10.1039/d1dt00082a] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Organoselenium ligands have attracted great attention among researchers during the past two decades. Various homogeneous, heterogeneous and nanocatalytic systems have been designed using such ligands. Although reports on selenium ligated homogeneous catalysts are quite high in number, significant work has also been done on the development of heterogeneous and nanocatalytic systems using organoselenium ligands. A review article, focusing on the utility of organoselenium compounds in the development of catalytic systems, was published in 2012 (A. Kumar, G. K. Rao, F. Saleem and A. K. Singh, Dalton Trans., 2012, 41, 11949). Moreover, it mainly covered the homogeneous catalysts. There are no review articles in the literature on heterogeneous and nanocatalytic systems designed using organoselenium compounds and their applications. Hence, this perspective aims to cover the developments pertaining to the synthetic aspects of such catalytic systems (using organoselenium compounds) and their applications in catalysis of a variety of chemical transformations. Salient features and advantages of organoselenium compounds have also been highlighted to justify the rationale behind their use in catalyst development. Their performance in various chemical transformations [viz. Suzuki-Miyaura coupling, Heck coupling, Sonogashira coupling, O-arylation of phenol, transfer hydrogenation of aldehydes and ketones, aldehyde-alkyne-amine (A3) coupling, hydration of nitriles, conversion of aldehydes to amides, cross-dehydrogenative coupling (CDC), photodegradation of substrates (formic acid, methylene blue), reduction of nitrophenols, electrolysis (hydrogen evolution reaction and oxygen reduction reactions), organocatalysis and dye sensitized solar cells] and relevant aspects of catalytic processes (such as recyclability, substrate scope and green aspects) have been critically analyzed. Future perspectives have also been discussed.
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Affiliation(s)
- Aayushi Arora
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, Uttarakhand 248012, India.
| | - Preeti Oswal
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, Uttarakhand 248012, India.
| | - Gyandshwar Kumar Rao
- Department of Chemistry, Amity School of Applied Sciences, Amity University Haryana (AUH), Gurgaon, Haryana 122413, India
| | - Sushil Kumar
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, Uttarakhand 248012, India.
| | - Arun Kumar
- Department of Chemistry, School of Physical Sciences, Doon University, Dehradun, Uttarakhand 248012, India.
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10
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Vega-Granados K, Canaff C, Estudillo-Wong LA, Alonso-Núñez G, Cruz-Reyes J, Alonso-Vante N. The effect on the electrocatalytic activity of the chemical interaction of selenium with palladium centers: oxygen reduction and methanol oxidation reactions in alkaline medium. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 33:314001. [PMID: 34011696 DOI: 10.1088/1361-648x/ac02e5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 05/19/2021] [Indexed: 06/12/2023]
Abstract
The chemical reactivity of two different selenium precursors (SeO2and Se) with nanoparticulated palladium was studied in a simple aqueous phase synthesis to generate palladium selenides (PdxSey). As confirmed by XRD, XPS, TEM and energy dispersive spectroscopy analyses, the products generated showed different degrees of selenization according to the nature of the chemical precursor. Such degree of selenization was more important with elemental selenium, in contrast to SeO2. Surface electrochemistry and CO stripping in alkaline medium, clearly revealed the different interactions and stability of PdxSeyachieved with the Pd/C precursor depending on the selenium source. The electrocatalysis of the oxygen reduction reaction was also influenced by the Se source, first in the different degree of reactivity, and second in the selectivity of the reduction product between H2O and H2O2, as well as the tolerance to the methanol oxidation reaction.
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Affiliation(s)
- Karla Vega-Granados
- IC2MP, UMR-CNRS 7285, University of Poitiers, 4 rue Michel Brunet, F-86073 Poitiers Cedex 9, France
- Facultad de Ciencias Químicas e Ingeniería, Universidad Autónoma de Baja California, Tijuana, Mexico
| | - Christine Canaff
- IC2MP, UMR-CNRS 7285, University of Poitiers, 4 rue Michel Brunet, F-86073 Poitiers Cedex 9, France
| | - Luis-Alberto Estudillo-Wong
- Departamento de Biociencias e Ingeniería, CIIEMAD-IPN, Instituto Politécnico Nacional, Calle 30 de junio de 1520, Alcaldía GAM, C.P. 07340, Ciudad de México, Mexico
| | - Gabriel Alonso-Núñez
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Ensenada, Baja California C.P. 22860, Mexico
| | - Juan Cruz-Reyes
- Facultad de Ciencias Químicas e Ingeniería, Universidad Autónoma de Baja California, Tijuana, Mexico
| | - Nicolas Alonso-Vante
- IC2MP, UMR-CNRS 7285, University of Poitiers, 4 rue Michel Brunet, F-86073 Poitiers Cedex 9, France
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11
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Wojtysiak M, Jędraczka A, Stępień M, Kutyła D, Kowalik R. Electrodeposition of Pd–Se thin films. Electrochem commun 2021. [DOI: 10.1016/j.elecom.2021.107053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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12
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Arora A, Oswal P, Rao GK, Kumar S, Singh AK, Kumar A. Catalytically active nanosized Pd 9Te 4 (telluropalladinite) and PdTe (kotulskite) alloys: first precursor-architecture controlled synthesis using palladium complexes of organotellurium compounds as single source precursors. RSC Adv 2021; 11:7214-7224. [PMID: 35423283 PMCID: PMC8695049 DOI: 10.1039/d0ra08732g] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 01/07/2021] [Indexed: 11/21/2022] Open
Abstract
Several intermetallic binary phases of Pd-Te including Pd3Te2, PdTe, PdTe2, Pd9Te4, Pd3Te, Pd2Te, Pd20Te7, Pd8Te3, Pd7Te2, Pd7Te3, Pd4Te and Pd17Te4 are known, and negligible work (except few studies on PdTe) has been done on exploring applications of such phases and their fabrication at nanoscale. Hence, Pd(ii) complexes Pd(L1)Cl2 and Pd(L2-H)Cl (L1): Ph-Te-CH2-CH2-NH2 and L2: HO-2-C6H4-CH[double bond, length as m-dash]N-CH2CH2-Te-Ph were synthesized. Under similar thermolytic conditions, complex Pd(L1)Cl2 with bidentate coordination mode of ligand provided nanostructures of Pd9Te4 (telluropalladinite) whereas Pd(L2-H)Cl with tridentate coordination mode of ligand yielded PdTe (kotulskite). Bimetallic alloy nanostructures possess high catalytic potential for Suzuki coupling of aryl chlorides, and reduction of 4-nitrophenol. They are also recyclable upto six reaction cycles in Suzuki coupling.
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Affiliation(s)
- Aayushi Arora
- Department of Chemistry, School of Physical Sciences, Doon University Dehradun Uttarakhand 248012 India
| | - Preeti Oswal
- Department of Chemistry, School of Physical Sciences, Doon University Dehradun Uttarakhand 248012 India
| | - Gyandshwar K Rao
- Department of Chemistry, Amity School of Applied Sciences, Amity University Haryana (AUH) Gurgaon Haryana 122413 India
| | - Sushil Kumar
- Department of Chemistry, School of Physical Sciences, Doon University Dehradun Uttarakhand 248012 India
| | - Ajai K Singh
- Department of Chemistry, Indian Institute of Technology Delhi New Delhi 110016 India
| | - Arun Kumar
- Department of Chemistry, School of Physical Sciences, Doon University Dehradun Uttarakhand 248012 India
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13
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Jain VK. Cyclometalated group-16 compounds of palladium and platinum: Challenges and opportunities. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213546] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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14
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Meng W, Liu Y, Zhang X, Dai X, Liu G. A nonsymmorphic-symmetry-protected hourglass Weyl node, hybrid Weyl node, nodal surface, and Dirac nodal line in Pd 4X (X = S, Se) compounds. Phys Chem Chem Phys 2020; 22:22399-22407. [PMID: 32996503 DOI: 10.1039/d0cp03686b] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nonsymmorphic symmetry has been proved to protect band crossings in topological semimetals/metals. In this work, based on the symmetry analysis and first-principles calculations, we reveal rich topological phases in compounds Pd4X (X = S, Se), which are protected by nonsymmorphic symmetry. In the absence of spin-orbit coupling (SOC), it shows the coexistence of the type-I Weyl point and type-II Weyl point. Here, due to the screw rotation, the type-I Weyl point takes an hourglass form. However, this hourglass Weyl point can be gapped in the presence of SOC. Furthermore, a combination of nonsymmorphic twofold screw-rotational symmetry and time-reversal symmetry protects a nodal surface. Particularly, this nodal surface is robust against SOC. In addition, a combination of the glide mirror and time-reversal symmetry contributes a nodal line of double degeneracy. In the presence of SOC, there emerges hybridization of type-I and type-II Weyl points. Meanwhile, there also appears a Dirac nodal line-a fourfold degenerate nodal line under SOC, which is protected by nonsymmorphic symmetries. Our works suggest realistic materials to study Weyl nodes of type-I and type-II, and their hybridization, as well as symmetry-protected nodal surfaces and Dirac nodal lines.
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Affiliation(s)
- Weizhen Meng
- School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, China.
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15
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Chauhan RS. Reactivity of hemi-labile pyridyl and pyrimidyl derived chalcogen ligands towards group 10 metal phosphine precursors. NEW J CHEM 2020. [DOI: 10.1039/c9nj04993b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The reactivity of N-heterocyclic dichalcogenides and their sodium salts towards group 10 metal phosphine precursors has been investigated.
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Affiliation(s)
- Rohit Singh Chauhan
- Department of Chemistry
- K. J. Somaiya College of Science and Commerce
- Mumbai-400077
- India
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16
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Ehsan MA, Suliman MH, Rehman A, Hakeem AS, Yamani ZH, Qamar M. Direct deposition of a nanoporous palladium electrocatalyst for efficient hydrogen evolution reaction. NEW J CHEM 2020. [DOI: 10.1039/d0nj00507j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The porous palladium directly deposited on metallic substrates by aerosol-assisted chemical vapor deposition exhibits remarkable HER performance in an acidic electrolyte.
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Affiliation(s)
- Muhammad Ali Ehsan
- Center of Excellence in Nanotechnology (CENT)
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | - Munzir H. Suliman
- Center of Excellence in Nanotechnology (CENT)
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
- Department of Chemistry
| | - Abdul Rehman
- Department of Chemistry
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | - Abbas Saeed Hakeem
- Center of Excellence in Nanotechnology (CENT)
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | - Zain H. Yamani
- Center of Excellence in Nanotechnology (CENT)
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | - Mohammad Qamar
- Center of Excellence in Nanotechnology (CENT)
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
- K.A.CARE Energy Research & Innovation Center
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17
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Feng W, Pang W, Xu Y, Guo A, Gao X, Qiu X, Chen W. Transition Metal Selenides for Electrocatalytic Hydrogen Evolution Reaction. ChemElectroChem 2019. [DOI: 10.1002/celc.201901623] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Wenshuai Feng
- School of Physics and ElectronicsCentral South University Changsha Hunan 410083 P. R. China
| | - Wenbin Pang
- School of Physics and ElectronicsCentral South University Changsha Hunan 410083 P. R. China
| | - Yan Xu
- College of Chemistry and Chemical EngineeringCentral South University Changsha Hunan 410083 P. R. China
| | - Aimin Guo
- School of Physics and ElectronicsCentral South University Changsha Hunan 410083 P. R. China
| | - Xiaohui Gao
- School of Physics and ElectronicsCentral South University Changsha Hunan 410083 P. R. China
| | - Xiaoqing Qiu
- School of Physics and ElectronicsCentral South University Changsha Hunan 410083 P. R. China
- College of Chemistry and Chemical EngineeringCentral South University Changsha Hunan 410083 P. R. China
| | - Wei Chen
- State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy Science Changchun Jilin 130022 P.R. China
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18
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Progress in selenium based metal-organic precursors for main group and transition metal selenide thin films and nanomaterials. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.02.026] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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19
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Wang N, Tao B, Miao F, Zang Y. Electrodeposited Pd/graphene/ZnO/nickel foam electrode for the hydrogen evolution reaction. RSC Adv 2019; 9:33814-33822. [PMID: 35528896 PMCID: PMC9073706 DOI: 10.1039/c9ra05335b] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 10/03/2019] [Indexed: 11/29/2022] Open
Abstract
Efficient electrocatalysts are crucial to water splitting for renewable energy generation. In this work, electrocatalytic hydrogen evolution from Pd nanoparticle-modified graphene nanosheets loaded on ZnO nanowires on nickel foam was studied in an alkaline electrolyte. The high electron mobility stems from the cylindrical ZnO nanowires and the rough surface on the graphene/ZnO nanowires increases the specific surface area and electrical conductivity. The catalytic activity arising from adsorption and desorption of intermediate hydrogen atoms by Pd nanoparticles improves the hydrogen evolution reaction efficiency. As a hydrogen evolution reaction (HER) catalyst, the Pd/graphene/ZnO/Ni foam (Pd/G/ZnO/NF) nanocomposite exhibits good stability and superior electrocatalytic activity. Linear sweep voltammetry (LSV) revealed an overpotential of −31 mV and Tafel slope of 46.5 mV dec−1 in 1 M KOH. The economical, high-performance, and environmentally friendly materials have excellent prospects in hydrogen storage and hydrogen production. Efficient electrocatalysts are crucial to water splitting for renewable energy generation.![]()
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Affiliation(s)
- Na Wang
- College of Communications and Electronics Engineering
- Qiqihar University
- Heilongjiang 161006
- China
| | - Bairui Tao
- College of Communications and Electronics Engineering
- Qiqihar University
- Heilongjiang 161006
- China
| | - Fengjuan Miao
- College of Communications and Electronics Engineering
- Qiqihar University
- Heilongjiang 161006
- China
| | - Yu Zang
- College of Materials Science and Engineering
- Qiqihar University
- Qiqihar
- China
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20
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Cao M, Xue Z, Niu J, Qin J, Sawangphruk M, Zhang X, Liu R. Facile Electrodeposition of Ni-Cu-P Dendrite Nanotube Films with Enhanced Hydrogen Evolution Reaction Activity and Durability. ACS APPLIED MATERIALS & INTERFACES 2018; 10:35224-35233. [PMID: 30231609 DOI: 10.1021/acsami.8b12321] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Hydrogen can be the potential substitute energy carrier for fuel while electrolysis water with hydrogen evolution reaction (HER) is an efficient way to produce hydrogen. Highly active and robust electrocatalysts composed by earth abundant elements are required. Herein, nickel-copper-phosphorus (Ni-Cu-P) electrocatalysts are designed and synthesized by a facile one-step electrodeposition method. A unique pine-needle-like dendrite nanotube morphology of Ni-Cu-P electrocatalyst can be synthesized when copper content changed and impressive HER activity obtained in alkaline and acidic media. Briefly, the overpotential reaches 120 mV in 1 M KOH and 150 mV in 0.5 M H2SO4 at the current density of 10 mA cm-2, with the corresponding Tafel slope reaching 69 mV dec-1. The results are close to that of commercial Pt/C catalysts (37 mV in 1 M KOH). Furthermore, the density functional theory calculations also demonstrate that P-incorporated Ni-Cu, Cu-incorporated Ni-P, and Ni-incorporated Cu-P have the optimized hydrogen adsorption free energy (Δ GH*) of -0.066, -0.157, and -0.003 eV, respectively, which are more suitable than those of Ni-Cu, Ni-P, and Cu-P, respectively. The Ni-incorporated Cu-P even has a much smaller Δ GH* of -0.003 than that of Pt (∼-0.09 eV). We believe that our study will provide a new strategy to design non-noble metal alloy materials for practical applications in catalysis and energy fields.
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Affiliation(s)
- Meng Cao
- State Key Laboratory of Metastable Materials Science and Technology , Yanshan University , Qinhuangdao 066004 , P. R. China
| | - Zhe Xue
- State Key Laboratory of Metastable Materials Science and Technology , Yanshan University , Qinhuangdao 066004 , P. R. China
| | - Jingjing Niu
- State Key Laboratory of Metastable Materials Science and Technology , Yanshan University , Qinhuangdao 066004 , P. R. China
| | - Jiaqian Qin
- Research Unit of Advanced Materials for Energy Storage, Metallurgy and Materials Science Research Institute , Chulalongkorn University , Bangkok 10330 , Thailand
| | - Montree Sawangphruk
- Department of Chemical and Biomolecular Engineering, School of Energy Science and Engineering , Vidyasirimedhi Institute of Science and Technology , Rayong 21210 , Thailand
| | - Xinyu Zhang
- State Key Laboratory of Metastable Materials Science and Technology , Yanshan University , Qinhuangdao 066004 , P. R. China
| | - Riping Liu
- State Key Laboratory of Metastable Materials Science and Technology , Yanshan University , Qinhuangdao 066004 , P. R. China
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21
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Che Q, Bai N, Li Q, Chen X, Tan Y, Xu X. One-step electrodeposition of a hierarchically structured S-doped NiCo film as a highly-efficient electrocatalyst for the hydrogen evolution reaction. NANOSCALE 2018; 10:15238-15248. [PMID: 30066706 DOI: 10.1039/c8nr03944e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
An enormous challenge in the development of renewable hydrogen sources for electricity-driven water-splitting systems has been the limitation of the earth-abundant and robust highly-active cathode electrocatalysts. In this work, we developed a simple sulfur-anion doping strategy to obtain the S-doped NiCo composite (S-NiCo@50) on Ni foam (NF) via a one-step electrochemical deposition. It was found that doped sulfur plays a crucial role in reducing the overpotential of hydrogen evolution by providing abundant active sites as identified by the XPS spectrum. The formed metallic Ni and Co effectively promoted electron transportation. The synergistic effects between the amorphous CoxNiyS(x+y) substance and crystalline Ni and Co metal seemed to result in enhanced HER activity. In particular, the S-NiCo@50 electrode, featuring a hierarchical morphology, showed an ultralow overpotential of 28 and 125 mV at 10 and 100 mA cm-2, respectively, in 1.0 M NaOH with a large exchange current density (j0) of 4.8 mA cm-2 as well as high conductivity and stability; its catalytic properties are superior to most of the reported alkaline electrocatalysts and are on par with commercial Pt/C. Assembled with the counter electrode (Ni-Fe/NF), the overall water splitting was proved with a low 1.55 V at 10 mA cm-2. Moreover, we built the Ni24Co6S6 cluster as the S-NiCo@50 model and revealed its intrinsic activity by density functional theory (DFT) calculations. This study shows that S-doping and component control can be an exquisite strategy for realizing high-efficiency electrochemical water reduction.
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Affiliation(s)
- Qijun Che
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, P. R. China.
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22
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Du C, Li P, Yang F, Cheng G, Chen S, Luo W. Monodisperse Palladium Sulfide as Efficient Electrocatalyst for Oxygen Reduction Reaction. ACS APPLIED MATERIALS & INTERFACES 2018; 10:753-761. [PMID: 29235837 DOI: 10.1021/acsami.7b16359] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this study, we report a colloidal synthesis of palladium sulfides (including Pd16S7, Pd4S, and PdS) via a facile one-pot hot-solution synthetic route and their promising application as electrocatalyst for the oxygen reduction reaction (ORR). Among the different palladium sulfides tested, monodisperse Pd4S nanoparticles exhibit the best electrocatalytic activity toward ORR in alkaline medium, with the half-wave potential ca. 47 mV more positive than that of the state-of-the-art Pt/C catalyst. Density functional theory calculations indicate the existence of oxygen absorption sites in Pd4S surface result in optimized oxygen-binding ability for the four-electron oxygen reduction.
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Affiliation(s)
- Cheng Du
- College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Peng Li
- College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Fulin Yang
- College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Gongzhen Cheng
- College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Shengli Chen
- College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, Hubei 430072, P. R. China
| | - Wei Luo
- College of Chemistry and Molecular Sciences, Wuhan University , Wuhan, Hubei 430072, P. R. China
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23
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Sarkar S, Peter SC. An overview on Pd-based electrocatalysts for the hydrogen evolution reaction. Inorg Chem Front 2018. [DOI: 10.1039/c8qi00042e] [Citation(s) in RCA: 138] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The electrochemical hydrogen evolution reaction (HER) is a well-studied reaction which involves the reduction of protons for hydrogen production. Pd-based compounds are expected to have activity on par with or better than the expensive state-of-the-art Pt and can be considered as the future materials for the HER.
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Affiliation(s)
- Shreya Sarkar
- New Chemistry Unit
- Jawaharlal Nehru Centre for Advanced Scientific Research
- Bangalore
- India
- School of Advanced Materials
| | - Sebastian C. Peter
- New Chemistry Unit
- Jawaharlal Nehru Centre for Advanced Scientific Research
- Bangalore
- India
- School of Advanced Materials
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24
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Zhang R, Sun Z, Feng R, Lin Z, Liu H, Li M, Yang Y, Shi R, Zhang W, Chen Q. Rapid Adsorption Enables Interface Engineering of PdMnCo Alloy/Nitrogen-Doped Carbon as Highly Efficient Electrocatalysts for Hydrogen Evolution Reaction. ACS APPLIED MATERIALS & INTERFACES 2017; 9:38419-38427. [PMID: 29039914 DOI: 10.1021/acsami.7b10016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The catalytic performance of Pd-based catalysts has long been hindered by surface contamination, particle agglomeration, and lack of rational structural design. Here we report a simple adsorption method for rapid synthesis (∼90 s) of structure-optimized Pd alloy supported on nitrogen-doped carbon without the use of surfactants or extra reducing agents. The material shows much lower overpotential than 30 wt % Pd/C and 40 wt % Pt/C catalysts while exhibiting excellent durability (80 h). Moreover, unveiled by the density functional theory (DFT) calculation results, the underlying reason for the outstanding performance is that the PdMnCo alloy/pyridinic nitrogen-doped carbon interfaces weaken the hydrogen-adsorption energy on the catalyst and thus optimize the Gibbs free energy of the intermediate state (ΔGH*), leading to a remarkable electrocatalytic activity. This work also opens up an avenue for quick synthesis of a highly efficient structure-optimized Pd-based catalyst.
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Affiliation(s)
- Ruirui Zhang
- Hefei National Laboratory for Physical Sciences at Microscale, Department of Materials Science & Engineering, Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Zhongti Sun
- Hefei National Laboratory for Physical Sciences at Microscale, Department of Materials Science & Engineering, Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Ruilu Feng
- Hefei National Laboratory for Physical Sciences at Microscale, Department of Materials Science & Engineering, Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Zhiyu Lin
- Hefei National Laboratory for Physical Sciences at Microscale, Department of Materials Science & Engineering, Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Haizhen Liu
- Hefei National Laboratory for Physical Sciences at Microscale, Department of Materials Science & Engineering, Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Mengsi Li
- Hefei National Laboratory for Physical Sciences at Microscale, Department of Materials Science & Engineering, Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Yang Yang
- Hefei National Laboratory for Physical Sciences at Microscale, Department of Materials Science & Engineering, Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Ruohong Shi
- Hefei National Laboratory for Physical Sciences at Microscale, Department of Materials Science & Engineering, Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Wenhua Zhang
- Hefei National Laboratory for Physical Sciences at Microscale, Department of Materials Science & Engineering, Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
| | - Qianwang Chen
- Hefei National Laboratory for Physical Sciences at Microscale, Department of Materials Science & Engineering, Collaborative Innovation Center of Suzhou Nano Science and Technology, University of Science and Technology of China , Hefei, Anhui 230026, P. R. China
- The Anhui Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei 230031, China
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25
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Chaudhari KR, Paluru DK, Wadawale AP, Dey S. Allylpalladium complexes of pyridylselenolates as precursors for palladium selenides. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.08.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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26
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Zhang X, Wu D, Cheng D. Component-dependent electrocatalytic activity of PdCu bimetallic nanoparticles for hydrogen evolution reaction. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.06.076] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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27
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Dey S, Vivekananda KV, Wadawale AP, Jain VK, Bhuvanesh N. Reactivity of 4-Pyridyltellurolate with Pd(II)/Pt(II) Complexes. ChemistrySelect 2017. [DOI: 10.1002/slct.201700817] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sandip Dey
- Chemistry Division; Bhabha Atomic Research Centre, HBNI; Mumbai- 400 085, India
| | | | - Amey P. Wadawale
- Chemistry Division; Bhabha Atomic Research Centre, HBNI; Mumbai- 400 085, India
| | - Vimal K. Jain
- Chemistry Division; Bhabha Atomic Research Centre, HBNI; Mumbai- 400 085, India
| | - Nattamai Bhuvanesh
- Department of Chemistry; Texas A&M University; PO Box 30012, College Station Texas 77842-3012 USA
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28
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Singh P, Singh AK. Palladium(ii) complexes of N,N-diphenylacetamide based thio/selenoethers and flower shaped Pd16S7and prismatic Pd17Se15nano-particles tailored as catalysts for C–C and C–O coupling. Dalton Trans 2017; 46:10037-10049. [DOI: 10.1039/c7dt01279a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Pd16S7/Pd17Se15NPs of shapes unknown hitherto and their Pd precursors (0.0001 mol%) are efficient/reusable catalysts for Suzuki–Miyaura/C–O coupling.
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Affiliation(s)
- Poornima Singh
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi–110016
- India
| | - Ajai K. Singh
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi–110016
- India
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29
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Bai N, Li Q, Mao D, Li D, Dong H. One-Step Electrodeposition of Co/CoP Film on Ni Foam for Efficient Hydrogen Evolution in Alkaline Solution. ACS APPLIED MATERIALS & INTERFACES 2016; 8:29400-29407. [PMID: 27731623 DOI: 10.1021/acsami.6b07785] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The development of high-efficiency catalysts for hydrogen evolution via water splitting has been an effective strategy to solve the energy environmental problems and energy crisis. The abundant-reserving transition metals and their phosphides are becoming attractive Pt alternatives for hydrogen evolution reaction (HER). Herein, a crystalline/amorphous Co/CoP film was facilely prepared on nickel foam (NF) by a one-step electrodeposition technique at room temperature, named Co/CoP-NF. The as-prepared Co/CoP-NF electrocatalyst exhibits excellent electrocatalytic activity for HER, on par with Pt/C, showing a low overpotential of 35 mV at a current density of 10 mA·cm-2 and small Tafel slope of 71 mV·dec-1 in 1.0 M NaOH solution. More importantly, the Co/CoP-NF catalyst presents good long-term durability at an overpotential of 60 mV. Moreover, the influence of the electrodeposition parameters on the catalytic performance of the catalyst was discussed. This study offers an effective strategy to develop a non-noble-metal HER catalyst for industrial production of hydrogen.
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Affiliation(s)
- Ningning Bai
- School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, People's Republic of China
| | - Qing Li
- School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, People's Republic of China
| | - Daoyong Mao
- School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, People's Republic of China
| | - Daikun Li
- School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, People's Republic of China
| | - Hongzhou Dong
- School of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, People's Republic of China
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30
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Jana R, Bhim A, Bothra P, Pati SK, Peter SC. Electrochemical Dealloying of PdCu 3 Nanoparticles to Achieve Pt-like Activity for the Hydrogen Evolution Reaction. CHEMSUSCHEM 2016; 9:2922-2927. [PMID: 27650407 DOI: 10.1002/cssc.201601081] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 08/09/2016] [Indexed: 06/06/2023]
Abstract
Manipulating the d-band center of the metal surface and hence optimizing the free energy of hydrogen adsorption (ΔGH ) close to the optimal adsorption energy (ΔGH =0) for hydrogen evolution reaction (HER), is an efficient strategy to enhance the activity for HER. Herein, we report a oleylamine-mediated (acting as the solvent, stabilizer, and reducing agent) strategy to synthesize intermetallic PdCu3 nanoparticles (NPs) without using any external reducing agent. Upon electrochemical cycling, PdCu3 transforms into Pd-rich PdCu (ΔGH =0.05 eV), exhibiting remarkably enhanced activity (with a current density of 25 mA cm-2 at ∼69 mV overpotential) as an alternative to Pt for HER. The first-principle calculation suggests that formation of low coordination number Pd active sites alters the d-band center and hence optimal adsorption of hydrogen, leading to enhanced activity. This finding may provide guidelines towards the design and development of Pt-free highly active and robust electrocatalysts.
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Affiliation(s)
- Rajkumar Jana
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore, India
| | - Anupam Bhim
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore, India
| | - Pallavi Bothra
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore, India
| | - Swapan K Pati
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore, India
- Theoretical Sciences Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore, India
| | - Sebastian C Peter
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur P.O., Bangalore, India.
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31
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Ray C, Dutta S, Negishi Y, Pal T. A new stable Pd–Mn3O4 nanocomposite as an efficient electrocatalyst for the hydrogen evolution reaction. Chem Commun (Camb) 2016; 52:6095-8. [DOI: 10.1039/c6cc01642a] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A galvanic exchange reaction-mediated one-pot synthesis of Pd–Mn3O4 nanocomposites for excellent electrocatalytic activity and stability towards the hydrogen evolution reaction.
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Affiliation(s)
- Chaiti Ray
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur – 721302
- India
| | - Soumen Dutta
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur – 721302
- India
| | - Yuichi Negishi
- Department of Applied Chemistry
- Tokyo University of Science
- Tokyo-1628601
- Japan
| | - Tarasankar Pal
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur – 721302
- India
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