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Ghanim AH, Koonce JG, Hasa B, Rassoolkhani AM, Cheng W, Peate DW, Lee J, Mubeen S. Low-Loading of Pt Nanoparticles on 3D Carbon Foam Support for Highly Active and Stable Hydrogen Production. Front Chem 2018; 6:523. [PMID: 30460227 PMCID: PMC6232265 DOI: 10.3389/fchem.2018.00523] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 10/10/2018] [Indexed: 11/13/2022] Open
Abstract
Minimizing Pt loading is essential for designing cost-effective water electrolyzers and fuel cell systems. Recently, three-dimensional macroporous open-pore electroactive supports have been widely regarded as promising architectures to lower loading amounts of Pt because of its large surface area, easy electrolyte access to Pt sites, and superior gas diffusion properties to accelerate diffusion of H2 bubbles from the Pt surface. However, studies to date have mainly focused on Pt loading on Ni-based 3D open pore supports which are prone to corrosion in highly acidic and alkaline conditions. Here, we investigate electrodeposition of Pt nanoparticles in low-loading amounts on commercially available, inexpensive, 3D carbon foam (CF) support and benchmark their activity and stability for electrolytic hydrogen production. We first elucidate the effect of deposition potential on the Pt nanoparticle size, density and subsequently its coverage on 3D CF. Analysis of the Pt deposit using scanning electron microscopy images reveal that for a given deposition charge density, the particle density increases (with cubic power) and particle size decreases (linearly) with deposition overpotential. A deposition potential of -0.4 V vs. standard calomel electrode (SCE) provided the highest Pt nanoparticle coverage on 3D CF surface. Different loading amounts of Pt (0.0075-0.1 mgPt/cm2) was then deposited on CF at -0.4 V vs. SCE and subsequently studied for its hydrogen evolution reaction (HER) activity in acidic 1M H2SO4 electrolyte. The Pt/CF catalyst with loading amounts as low as 0.06 mgPt/cm2 (10-fold lower than state-of-the-art commercial electrodes) demonstrated a mass activity of 2.6 ampere per milligram Pt at 200 mV overpotential, nearly 6-fold greater than the commercial Pt/C catalyst tested under similar conditions. The 3D architectured electrode also demonstrated excellent stability, showing <7% loss in activity after 60 h of constant current water electrolysis at 100 mA/cm2.
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Affiliation(s)
- Abdulsattar H Ghanim
- Department of Chemical and Biochemical Engineering, University of Iowa, Iowa, IA, United States
| | - Jonathan G Koonce
- Department of Chemical and Biochemical Engineering, University of Iowa, Iowa, IA, United States
| | - Bjorn Hasa
- Department of Chemical Engineering, University of Patras, Patras, Greece
| | - Alan M Rassoolkhani
- Department of Chemical and Biochemical Engineering, University of Iowa, Iowa, IA, United States
| | - Wei Cheng
- Department of Chemical and Biochemical Engineering, University of Iowa, Iowa, IA, United States
| | - David W Peate
- Department of Earth and Environmental Sciences, University of Iowa, Iowa, IA, United States
| | - Joun Lee
- Department of Chemical and Biochemical Engineering, University of Iowa, Iowa, IA, United States
| | - Syed Mubeen
- Department of Chemical and Biochemical Engineering, University of Iowa, Iowa, IA, United States
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102
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NiO and Co3O4 nanofiber catalysts for the hydrogen evolution reaction at liquid/liquid interfaces. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.08.130] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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103
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Cao Q, Gu W, Li J, Wang E. The Effect of Metal Components in the Quaternary Electrocatalysts on the Morphology and Catalytic Performance of Transition Metal Phosphides. ELECTROANAL 2018. [DOI: 10.1002/elan.201800494] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Qiao Cao
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun, Jilin 130022 PR China
- University of the Chinese Academy of Sciences; Beijing 100049 PR China
| | - Wenling Gu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun, Jilin 130022 PR China
- University of the Chinese Academy of Sciences; Beijing 100049 PR China
| | - Jing Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun, Jilin 130022 PR China
- University of the Chinese Academy of Sciences; Beijing 100049 PR China
| | - Erkang Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun, Jilin 130022 PR China
- University of the Chinese Academy of Sciences; Beijing 100049 PR China
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104
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Dong J, Fu Q, Jiang Z, Mei B, Bao X. Carbide-Supported Au Catalysts for Water–Gas Shift Reactions: A New Territory for the Strong Metal–Support Interaction Effect. J Am Chem Soc 2018; 140:13808-13816. [DOI: 10.1021/jacs.8b08246] [Citation(s) in RCA: 142] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Jinhu Dong
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qiang Fu
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Zheng Jiang
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
| | - Bingbao Mei
- University of Chinese Academy of Sciences, Beijing 100049, China
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
| | - Xinhe Bao
- State Key Laboratory of Catalysis, iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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105
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Wang Y, Yang Z. TiC and TiN supported platinum monolayer as high-performance catalysts for CO oxidation: A DFT study. J Chem Phys 2018; 149:054705. [DOI: 10.1063/1.5038857] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Yan Wang
- College of Physics and Materials Science, Henan Normal University, Xinxiang, Henan 453007, China
| | - Zongxian Yang
- College of Physics and Materials Science, Henan Normal University, Xinxiang, Henan 453007, China
- National Demonstration Center for Experimental Physics Education, Henan Normal University, Xinxiang, Henan 453007, China
- Collaborative Innovation Center of Nano Functional Materials and Applications, Henan Province, China
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106
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Khan MA, Zhao H, Zou W, Chen Z, Cao W, Fang J, Xu J, Zhang L, Zhang J. Recent Progresses in Electrocatalysts for Water Electrolysis. ELECTROCHEM ENERGY R 2018. [DOI: 10.1007/s41918-018-0014-z] [Citation(s) in RCA: 186] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Abstract
The study of hydrogen evolution reaction and oxygen evolution reaction electrocatalysts for water electrolysis is a developing field in which noble metal-based materials are commonly used. However, the associated high cost and low abundance of noble metals limit their practical application. Non-noble metal catalysts, aside from being inexpensive, highly abundant and environmental friendly, can possess high electrical conductivity, good structural tunability and comparable electrocatalytic performances to state-of-the-art noble metals, particularly in alkaline media, making them desirable candidates to reduce or replace noble metals as promising electrocatalysts for water electrolysis. This article will review and provide an overview of the fundamental knowledge related to water electrolysis with a focus on the development and progress of non-noble metal-based electrocatalysts in alkaline, polymer exchange membrane and solid oxide electrolysis. A critical analysis of the various catalysts currently available is also provided with discussions on current challenges and future perspectives. In addition, to facilitate future research and development, several possible research directions to overcome these challenges are provided in this article.
Graphical Abstract
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107
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108
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Partanen L, Murdachaew G, Laasonen K. Oxygen Evolution Reaction Kinetic Barriers on Nitrogen-Doped Carbon Nanotubes. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2018; 122:12892-12899. [PMID: 30405870 PMCID: PMC6203181 DOI: 10.1021/acs.jpcc.8b03269] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 05/21/2018] [Indexed: 05/17/2023]
Abstract
We investigate kinetic barriers for the oxygen evolution reaction (OER) on singly and doubly nitrogen-doped single-walled carbon nanotubes (NCNTs) using the climbing image nudged elastic band method with solvent effects represented by a 45-water-molecule droplet. The studied sites were chosen based on a previous study of the same systems utilizing a thermodynamic model which ignored both solvent effects and kinetic barriers. According to that model, the two studied sites, one on a singly nitrogen-doped CNT and the other on a doubly doped CNT, were approximately equally suitable for OER. For the four-step OER process, however, our reaction barrier calculations showed a clear difference in the rate-determining *OOH formation step between the two systems, with barrier heights differing by more than 0.4 eV. Thus, the simple thermodynamic model may alone be insufficient for identifying optimal OER sites. Of the remaining three reaction steps, the two H2O forming ones were found to be barrierless in all cases. We also performed solvent-free barrier calculations on NCNTs and undoped CNTs. Substantial differences were observed in the energies of the intermediates when the solvent was present. In general, the observed low activation energy barriers for these reactions corroborate both experimental and theoretical findings of the utility of NCNTs for OER catalysis.
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109
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Lan K, Wang X, Yang H, Iqbal K, Zhu Y, Jiang P, Tang Y, Yang Y, Gao W, Li R. Ultrafine MoP Nanoparticles Well Embedded in Carbon Nanosheets as Electrocatalyst with High Active Site Density for Hydrogen Evolution. ChemElectroChem 2018. [DOI: 10.1002/celc.201800299] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kai Lan
- State Key Laboratory of Applied Organic Chemistry (SKLAOC) The Key Laboratory of Catalytic Engineering of Gansu Province College of Chemistry and Chemical Engineering; Lanzhou University; Lanzhou 730000 PR China
| | - Xiang Wang
- State Key Laboratory of Applied Organic Chemistry (SKLAOC) The Key Laboratory of Catalytic Engineering of Gansu Province College of Chemistry and Chemical Engineering; Lanzhou University; Lanzhou 730000 PR China
| | - Haidong Yang
- State Key Laboratory of Applied Organic Chemistry (SKLAOC) The Key Laboratory of Catalytic Engineering of Gansu Province College of Chemistry and Chemical Engineering; Lanzhou University; Lanzhou 730000 PR China
| | - Kanwal Iqbal
- State Key Laboratory of Applied Organic Chemistry (SKLAOC) The Key Laboratory of Catalytic Engineering of Gansu Province College of Chemistry and Chemical Engineering; Lanzhou University; Lanzhou 730000 PR China
| | - Yan Zhu
- State Key Laboratory of Applied Organic Chemistry (SKLAOC) The Key Laboratory of Catalytic Engineering of Gansu Province College of Chemistry and Chemical Engineering; Lanzhou University; Lanzhou 730000 PR China
| | - Pengbo Jiang
- State Key Laboratory of Applied Organic Chemistry (SKLAOC) The Key Laboratory of Catalytic Engineering of Gansu Province College of Chemistry and Chemical Engineering; Lanzhou University; Lanzhou 730000 PR China
| | - Yu Tang
- State Key Laboratory of Applied Organic Chemistry (SKLAOC) The Key Laboratory of Catalytic Engineering of Gansu Province College of Chemistry and Chemical Engineering; Lanzhou University; Lanzhou 730000 PR China
| | - Yuanyuan Yang
- State Key Laboratory of Applied Organic Chemistry (SKLAOC) The Key Laboratory of Catalytic Engineering of Gansu Province College of Chemistry and Chemical Engineering; Lanzhou University; Lanzhou 730000 PR China
| | - Wenbin Gao
- State Key Laboratory of Applied Organic Chemistry (SKLAOC) The Key Laboratory of Catalytic Engineering of Gansu Province College of Chemistry and Chemical Engineering; Lanzhou University; Lanzhou 730000 PR China
| | - Rong Li
- State Key Laboratory of Applied Organic Chemistry (SKLAOC) The Key Laboratory of Catalytic Engineering of Gansu Province College of Chemistry and Chemical Engineering; Lanzhou University; Lanzhou 730000 PR China
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Guo Q, Liang F, Gao XY, Gan QC, Li XB, Li J, Lin ZS, Tung CH, Wu LZ. Metallic Co2C: A Promising Co-catalyst To Boost Photocatalytic Hydrogen Evolution of Colloidal Quantum Dots. ACS Catal 2018. [DOI: 10.1021/acscatal.8b01105] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Qing Guo
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Fei Liang
- Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Xiao-Ya Gao
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Qi-Chao Gan
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Xu-Bing Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Jian Li
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Zhe-Shuai Lin
- Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Chen-Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Li-Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
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111
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Hunt ST, Román-Leshkov Y. Principles and Methods for the Rational Design of Core-Shell Nanoparticle Catalysts with Ultralow Noble Metal Loadings. Acc Chem Res 2018; 51:1054-1062. [PMID: 29510023 DOI: 10.1021/acs.accounts.7b00510] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Conspecuts Commercial and emerging renewable energy technologies are underpinned by precious metal catalysts, which enable the transformation of reactants into useful products. However, the noble metals (NMs) comprise the least abundant elements in the lithosphere, making them prohibitively scarce and expensive for future global-scale technologies. As such, intense research efforts have been devoted to eliminating or substantially reducing the loadings of NMs in various catalytic applications. These efforts have resulted in a plethora of heterogeneous NM catalyst morphologies beyond the traditional supported spherical nanoparticle. In many of these new architectures, such as shaped, high index, and bimetallic particles, less than 20% of the loaded NMs are available to perform catalytic turnovers. The majority of NM atoms are subsurface, providing only a secondary catalytic role through geometric and ligand effects with the active surface NM atoms. A handful of architectures can approach 100% NM utilization, but severe drawbacks limit general applicability. For example, in addition to problems with stability and leaching, single atom and ultrasmall cluster catalysts have extreme metal-support interactions, discretized d-bands, and a lack of adjacent NM surface sites. While monolayer thin films do not possess these features, they exhibit such low surface areas that they are not commercially relevant, serving predominantly as model catalysts. This Account champions core-shell nanoparticles (CS NPs) as a vehicle to design highly active, stable, and low-cost materials with high NM utilization for both thermo- and electrocatalysis. The unique benefits of the many emerging NM architectures could be preserved while their fundamental limitations could be overcome through reformulation via a core-shell morphology. However, the commercial realization of CS NPs remains challenging, requiring concerted advances in theory and manufacturing. We begin by formulating seven constraints governing proper core material design, which naturally point to early transition metal ceramics as suitable core candidates. Two constraints prove extremely challenging. The first relates to the core modifying the shell work function and d-band. To properly investigate materials that could satisfy this constraint, we discuss our development of a new heat, quench, and exfoliation (HQE) density functional theory (DFT) technique to model heterometallic interfaces. This technique is used to predict how transition metal carbides can favorably tune the catalytic properties of various NM monolayer shell configurations. The second challenging constraint relates to the scalable manufacturing of CS NP architectures with independent synthetic control of the thickness and composition of the shell and the size and composition of the core. We discuss our development of a synthetic method that enables high temperature self-assembly of tunable CS NP configurations. Finally, we discuss how these principles and methods were used to design catalysts for a variety of applications. These include the design of a thermally stable sub-monolayer CS catalyst, a highly active methanol electrooxidation catalyst, CO-tolerant Pt catalysts, and a hydrogen evolution catalyst that is less expensive than state-of-the-art NM-free catalysts. Such core-shell architectures offer the promise of ultralow precious metal loadings while ceramic cores hold the promise of thermodynamic stability and access to unique catalytic activity/tunability.
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Affiliation(s)
- Sean T. Hunt
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Yuriy Román-Leshkov
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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112
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Zhang X, Gu T, Shi S, Li L, Yu S. Enhanced Stability of Pt ML/M ML/WC(0001) Multilayer Alloys under Electrochemical Conditions: A First Principle Study. ACS APPLIED MATERIALS & INTERFACES 2018; 10:15704-15711. [PMID: 29667407 DOI: 10.1021/acsami.8b02360] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A platinum (Pt) monolayer catalyst could greatly reduce the use of Pt. However, the core or subsurface transition metal could easily segregate to the surface and eventually selectively dissolve in the working conditions. In this work, a type of PtML/MML/tungsten carbide (WC) multilayer structure catalyst has been designed using the density functional theory method. The results show that the stability of W-terminated core catalysts is lower than that of the corresponding C-terminated one. More importantly, the C-terminated PtML/CoML/WC alloy could also maintain a stable Pt monolayer structure in various electrolyte solutions (e.g., perchloric acid, phosphoric acid, and alkaline solutions) and via different oxygen reduction reaction (ORR) pathways, in addition to the previously well-known precious alloy elements, such as Ru, Ir, and so forth. The segregation of the M metal will be suppressed by introducing a high electronegativity nonmetal element in the core such as C through enhanced interaction between the C and M interlayers. The improved ORR activity and the stability of C-terminated PtML/Co(Ru)ML/WC(0001) multilayer structures highlight the importance of surface chemistry of the substrate in rational design Pt monolayer catalysts.
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Affiliation(s)
- Xiaoming Zhang
- State Key Laboratory of Automotive Simulation and Control, Department of Materials Science , Jilin University , Changchun 130012 , China
- Division of Fuel Cell & Battery, Dalian National Laboratory for Clean Energy , Dalian Institution of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , China
| | - Tianwei Gu
- State Key Laboratory of Automotive Simulation and Control, Department of Materials Science , Jilin University , Changchun 130012 , China
| | - Shaodong Shi
- State Key Laboratory of Automotive Simulation and Control, Department of Materials Science , Jilin University , Changchun 130012 , China
| | - Leyi Li
- State Key Laboratory of Automotive Simulation and Control, Department of Materials Science , Jilin University , Changchun 130012 , China
| | - Shansheng Yu
- State Key Laboratory of Automotive Simulation and Control, Department of Materials Science , Jilin University , Changchun 130012 , China
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113
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Wan W, Tackett BM, Chen JG. Reactions of water and C1 molecules on carbide and metal-modified carbide surfaces. Chem Soc Rev 2018; 46:1807-1823. [PMID: 28229154 DOI: 10.1039/c6cs00862c] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The formation of carbides can significantly modify the physical and chemical properties of the parent metals. In the current review, we summarize the general trends in the reactions of water and C1 molecules over transition metal carbide (TMC) and metal-modified TMC surfaces and thin films. Although the primary focus of the current review is on the theoretical and experimental studies of reactions of C1 molecules (CO, CO2, CH3OH, etc.), the reactions of water will also be reviewed because water plays an important role in many of the C1 transformation reactions. This review is organized by discussing separately thermal reactions and electrochemical reactions, which provides insights into the application of TMCs in heterogeneous catalysis and electrocatalysis, respectively. In thermal reactions, we discuss the thermal decomposition of water and methanol, as well as the reactions of CO and CO2 over TMC surfaces. In electrochemical reactions, we summarize recent studies in the hydrogen evolution reaction, electrooxidation of methanol and CO, and electroreduction of CO2. Finally, future research opportunities and challenges associated with using TMCs as catalysts and electrocatalysts are also discussed.
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Affiliation(s)
- Weiming Wan
- Department of Chemical Engineering, Columbia University, New York, NY 10027, USA.
| | - Brian M Tackett
- Department of Chemical Engineering, Columbia University, New York, NY 10027, USA.
| | - Jingguang G Chen
- Department of Chemical Engineering, Columbia University, New York, NY 10027, USA. and Chemistry Department, Brookhaven National Laboratory, Upton, NY 11973, USA
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Wang M, Gönüllü Y, Pyeon M, Diao Z, Czympiel L, Singh M, Shen S, Mathur S. Trace Amount of Platinum Supported on Carbonized Biomorphic Wood for Efficient Electrochemical Hydrogen Evolution in Alkaline Condition. ChemistrySelect 2018. [DOI: 10.1002/slct.201702959] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Meng Wang
- International Research Center for Renewable Energy; State Key Laboratory of Multiphase Flow in Power Engineering; Xi'an Jiaotong University, Xi'an, Shaanxi; 710049 China
- Department of Inorganic Chemistry; University of Cologne; Greinstr. 6 50939 Cologne Germany
| | - Yakup Gönüllü
- Department of Inorganic Chemistry; University of Cologne; Greinstr. 6 50939 Cologne Germany
| | - Myeongwhun Pyeon
- Department of Inorganic Chemistry; University of Cologne; Greinstr. 6 50939 Cologne Germany
| | - Zhidan Diao
- International Research Center for Renewable Energy; State Key Laboratory of Multiphase Flow in Power Engineering; Xi'an Jiaotong University, Xi'an, Shaanxi; 710049 China
| | - Lisa Czympiel
- Department of Inorganic Chemistry; University of Cologne; Greinstr. 6 50939 Cologne Germany
| | - Mrityunjay Singh
- Ohio Aerospace Institute (OAI); NASA Glenn Research Center; Cleveland OH 44135 USA
| | - Shaohua Shen
- International Research Center for Renewable Energy; State Key Laboratory of Multiphase Flow in Power Engineering; Xi'an Jiaotong University, Xi'an, Shaanxi; 710049 China
| | - Sanjay Mathur
- Department of Inorganic Chemistry; University of Cologne; Greinstr. 6 50939 Cologne Germany
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115
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Joshi U, Malkhandi S, Ren Y, Tan TL, Chiam SY, Yeo BS. Ruthenium-Tungsten Composite Catalyst for the Efficient and Contamination-Resistant Electrochemical Evolution of Hydrogen. ACS APPLIED MATERIALS & INTERFACES 2018; 10:6354-6360. [PMID: 29431422 DOI: 10.1021/acsami.7b17970] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A new catalyst, prepared by a simple physical mixing of ruthenium (Ru) and tungsten (W) powders, has been discovered to interact synergistically to enhance the electrochemical hydrogen evolution reaction (HER). In an aqueous 0.5 M H2SO4 electrolyte, this catalyst, which contained a miniscule loading of 2-5 nm sized Ru nanoparticles (5.6 μg Ru per cm2 of geometric surface area of the working electrode), required an overpotential of only 85 mV to drive 10 mA/cm2 of H2 evolution. Interestingly, our catalyst also exhibited good immunity against deactivation during HER from ionic contaminants, such as Cu2+ (over 24 h). We unravel the mechanism of synergy between W and Ru for catalyzing H2 evolution using Cu underpotential deposition, photoelectron spectroscopy, and density functional theory (DFT) calculations. We found a decrease in the d-band and an increase in the electron work function of Ru in the mixed composite, which made it bind to H more weakly (more Pt-like). The H-adsorption energy on Ru deposited on W was found, by DFT, to be very close to that of Pt(111), explaining the improved HER activity.
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Affiliation(s)
- Ubisha Joshi
- Department of Chemistry, Faculty of Science, National University of Singapore , 3 Science Drive 3, Singapore 117543
| | - Souradip Malkhandi
- Department of Chemistry, Faculty of Science, National University of Singapore , 3 Science Drive 3, Singapore 117543
| | - Yi Ren
- Institute of Materials Research and Engineering, Agency for Science Technology and Research , 2 Fusionopolis Way, Singapore 138634
| | - Teck Leong Tan
- Institute of High Performance Computing, Agency for Science, Technology and Research , 1 Fusionopolis Way, Singapore 138632
| | - Sing Yang Chiam
- Institute of Materials Research and Engineering, Agency for Science Technology and Research , 2 Fusionopolis Way, Singapore 138634
| | - Boon Siang Yeo
- Department of Chemistry, Faculty of Science, National University of Singapore , 3 Science Drive 3, Singapore 117543
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116
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Cao L, Tao P, Li M, Lyu F, Wang Z, Wu S, Wang W, Huo Y, Huang L, Lu Z. Synergistic Effects of C/α-MoC and Ag for Efficient Oxygen Reduction Reaction. J Phys Chem Lett 2018; 9:779-784. [PMID: 29381367 DOI: 10.1021/acs.jpclett.7b03347] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
It remains challenging to prepare highly active and stable catalysts from earth-abundant elements for the oxygen reduction reaction (ORR). Herein we report a facile method to synthesize cost-effective heterogeneous C/α-MoC/Ag electrocatalysts. Rotating disc electrode (RDE) experiments revealed that the obtained C/α-MoC/Ag exhibited much superior catalytic performance for ORR than that of C/Ag, C/α-MoC, or even the conventional Pt/C. First-principles calculations indicated that the enhanced activity could be attributed to the efficient synergistic effects between Ag and α-MoC/C by which the energy barrier for O2 dissociation has been substantially reduced. Furthermore, Li-air and Al-air cells were assembled to demonstrate the unprecedented electrochemical performance of C/α-MoC/Ag nanocomposites surpassing the Pt/C. Thus experimental results and theoretical calculations together showed that the heterogeneous C/α-MoC/Ag nanocomposites are a promising alternative to platinum for applications in industrial metal-air batteries.
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Affiliation(s)
- Lujie Cao
- Department of Materials Science & Engineering, Southern University of Science and Technology , Shenzhen 518055, P. R. China
| | - Pengpeng Tao
- Department of Materials Science & Engineering, Southern University of Science and Technology , Shenzhen 518055, P. R. China
| | - Minchan Li
- Department of Materials Science & Engineering, Southern University of Science and Technology , Shenzhen 518055, P. R. China
| | - Fucong Lyu
- Department of Materials Science & Engineering, Southern University of Science and Technology , Shenzhen 518055, P. R. China
| | - Zhenyu Wang
- Department of Materials Science & Engineering, Southern University of Science and Technology , Shenzhen 518055, P. R. China
| | - Sisi Wu
- Department of Materials Science & Engineering, Southern University of Science and Technology , Shenzhen 518055, P. R. China
| | - Wenxi Wang
- Department of Materials Science & Engineering, Southern University of Science and Technology , Shenzhen 518055, P. R. China
| | - Yifeng Huo
- Department of Materials Science & Engineering, Southern University of Science and Technology , Shenzhen 518055, P. R. China
| | - Li Huang
- Department of Physics, Southern University of Science and Technology , Shenzhen 518055, P. R. China
| | - Zhouguang Lu
- Department of Materials Science & Engineering, Southern University of Science and Technology , Shenzhen 518055, P. R. China
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117
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Analysis of Trends and Emerging Technologies in Water Electrolysis Research Based on a Computational Method: A Comparison with Fuel Cell Research. SUSTAINABILITY 2018. [DOI: 10.3390/su10020478] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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118
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Labrador NY, Songcuan EL, De Silva C, Chen H, Kurdziel SJ, Ramachandran RK, Detavernier C, Esposito DV. Hydrogen Evolution at the Buried Interface between Pt Thin Films and Silicon Oxide Nanomembranes. ACS Catal 2018. [DOI: 10.1021/acscatal.7b02668] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Natalie Y. Labrador
- Columbia University in the City of New York Department of Chemical Engineering, Lenfest
Center for Sustainable Energy, 500 W. 120th Street, New York, New York 10027, United States
| | - Eva L. Songcuan
- Columbia University in the City of New York Department of Chemical Engineering, Lenfest
Center for Sustainable Energy, 500 W. 120th Street, New York, New York 10027, United States
| | - Chathuranga De Silva
- Columbia University in the City of New York Department of Chemical Engineering, Lenfest
Center for Sustainable Energy, 500 W. 120th Street, New York, New York 10027, United States
| | - Han Chen
- Columbia University in the City of New York Department of Chemical Engineering, Lenfest
Center for Sustainable Energy, 500 W. 120th Street, New York, New York 10027, United States
| | - Sophia J. Kurdziel
- Columbia University in the City of New York Department of Chemical Engineering, Lenfest
Center for Sustainable Energy, 500 W. 120th Street, New York, New York 10027, United States
| | - Ranjith K. Ramachandran
- Ghent University, Department of Solid State Sciences,
CoCooN, Krijgslaan 281/S1, B-9000 Ghent, Belgium
| | - Christophe Detavernier
- Ghent University, Department of Solid State Sciences,
CoCooN, Krijgslaan 281/S1, B-9000 Ghent, Belgium
| | - Daniel V. Esposito
- Columbia University in the City of New York Department of Chemical Engineering, Lenfest
Center for Sustainable Energy, 500 W. 120th Street, New York, New York 10027, United States
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119
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Li X, Ma X, Du X, Zheng J, Hao X, Abudula A, Guan G. Silver-doped molybdenum carbide catalyst with high activity for electrochemical water splitting. Phys Chem Chem Phys 2018; 18:32780-32785. [PMID: 27878173 DOI: 10.1039/c6cp06307a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A hybrid catalyst composed of silver (Ag) doped wire-like molybdenum carbide (MoxCy) with pure β-phase and carbon nanotubes (CNTs) was coated well on a carbon rod electrode for the hydrogen evolution reaction (HER). The effects of Ag loading amount and carbonization temperature on the crystal form of MoxCy were investigated in detail. It is found that the MoxCy crystal form can be tuned by adjusting the preparation conditions, and nanostructured wire-like Mo2C with pure β-phase was obtained at a temperature over 750 °C. Ag/MoxCy composite nanomaterials were investigated by X-ray diffraction, UV/vis spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy, transmission electron microscopy, energy-dispersive spectroscopy and Brunauer-Emmett-Teller surface area analysis. The hybrid catalyst was further deposited on the carbon nanotube (CNT) modified carbon rod substrate. Due to the high surface area and 3D porous network-like microstructure, the Ag/Mo2C/CNTs hybrid electrode showed enhanced catalytic performance when comparing with the corresponding pure one. Particularly, for the Ag-doped Mo2C/CNTs hybrid electrode with an optimum 1 Ag : 5 Mo molar ratio of the precursors, a current density of 10 mA cm-2 was obtained by applying an overpotential of 142 mV in 0.5 mol L-1 H2SO4 solution. It is expected that such a hybrid electrode can be widely applied for effective electrolysis of water to produce hydrogen.
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Affiliation(s)
- Xiumin Li
- Graduate School of Science and Technology, Hirosaki University, 1-Bunkyocho, Hirosaki 036-8560, Japan
| | - Xuli Ma
- North Japan Research Institute for Sustainable Energy (NJRISE), Hirosaki University, 2-1-3, Matsubara, Aomori 030-0813, Japan. and Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Xiao Du
- North Japan Research Institute for Sustainable Energy (NJRISE), Hirosaki University, 2-1-3, Matsubara, Aomori 030-0813, Japan. and Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Junlan Zheng
- North Japan Research Institute for Sustainable Energy (NJRISE), Hirosaki University, 2-1-3, Matsubara, Aomori 030-0813, Japan. and Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Xiaogang Hao
- Department of Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, P. R. China
| | - Abuliti Abudula
- Graduate School of Science and Technology, Hirosaki University, 1-Bunkyocho, Hirosaki 036-8560, Japan
| | - Guoqing Guan
- Graduate School of Science and Technology, Hirosaki University, 1-Bunkyocho, Hirosaki 036-8560, Japan and North Japan Research Institute for Sustainable Energy (NJRISE), Hirosaki University, 2-1-3, Matsubara, Aomori 030-0813, Japan.
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120
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Jain A, Ramasubramaniam A. Tuning core–shell interactions in tungsten carbide–Pt nanoparticles for the hydrogen evolution reaction. Phys Chem Chem Phys 2018; 20:23262-23271. [DOI: 10.1039/c8cp04113j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Titanium doping enhances the stability and activity of tungsten carbide core–platinum shell nanoparticles for hydrogen evolution
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Affiliation(s)
- Akash Jain
- Department of Chemical Engineering
- University of Massachusetts
- Amherst
- USA
| | - Ashwin Ramasubramaniam
- Department of Mechanical and Industrial Engineering
- University of Massachusetts
- Amherst
- USA
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121
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Kim H, Choe S, Park H, Jang JH, Ahn SH, Kim SK. An extremely low Pt loading cathode for a highly efficient proton exchange membrane water electrolyzer. NANOSCALE 2017; 9:19045-19049. [PMID: 29188847 DOI: 10.1039/c7nr07224d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Direct self-terminated Pt electrodeposition on carbon paper enables precise control of loading Pt mass, from the sub-microgram to the sub-milligram scale. This can provide insight into the low limits of Pt use for reasonable performance of a proton exchange membrane water electrolyzer.
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Affiliation(s)
- Hoyoung Kim
- School of Integrative Engineering, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea.
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122
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Huang T, Chen Y, Lee JM. A Microribbon Hybrid Structure of CoOx-MoC Encapsulated in N-Doped Carbon Nanowire Derived from MOF as Efficient Oxygen Evolution Electrocatalysts. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1702753. [PMID: 29119671 DOI: 10.1002/smll.201702753] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 09/13/2017] [Indexed: 06/07/2023]
Abstract
Developing highly efficient electrocatalysts for oxygen evolution is vital for renewable and sustainable energy production and storage. Herein, nitrogen-doped carbon encapsulated CoOx-MoC heterostructures are reported for the first time as high performance oxygen evolution electrocatalysts. The composition can be tuned by the addition of a Mo source to form a nanowire-assembled hierarchically porous microstructure, which can enlarge the specific surface area, thus exposing more active sites, facilitating mass transport and charge transfer. Moreover, it is demonstrated that the formation of CoOx-MoC heterostructures and the resulting synergistic effect between MoC and Co facilitate the reaction kinetics, leading to significantly improved oxygen evolution reaction (OER) activity with an onset overpotential of merely 290 mV, and a low overpotential of 330 mV to afford a current density of 10 mA cm-2 . The well-constructed microarchitecture contributes to superior long term stability electrochemical behaviors. This work provides a facile strategy via composition tuning and structure optimization for the development of next-generation nonprecious metal-based OER electrocatalysts.
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Affiliation(s)
- Tan Huang
- Energy Research Institute@NTU, Interdisciplinary Graduate School, Nanyang Technological University, 50 Nanyang Drive, Singapore, 637553, Singapore
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
| | - Yu Chen
- Key Laboratory of Macromolecular Science of Shaanxi Province, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710062, P. R. China
| | - Jong-Min Lee
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore, 637459, Singapore
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123
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Iida T, Shetty M, Murugappan K, Wang Z, Ohara K, Wakihara T, Román-Leshkov Y. Encapsulation of Molybdenum Carbide Nanoclusters inside Zeolite Micropores Enables Synergistic Bifunctional Catalysis for Anisole Hydrodeoxygenation. ACS Catal 2017. [DOI: 10.1021/acscatal.7b03175] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Takayuki Iida
- Department
of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Department
of Chemical Engineering, Massachusetts Institute of Technology, 25 Ames Street, Cambridge, Massachusetts 02139, United States
| | - Manish Shetty
- Department
of Chemical Engineering, Massachusetts Institute of Technology, 25 Ames Street, Cambridge, Massachusetts 02139, United States
| | - Karthick Murugappan
- Department
of Chemical Engineering, Massachusetts Institute of Technology, 25 Ames Street, Cambridge, Massachusetts 02139, United States
| | - Zhenshu Wang
- Department
of Chemical Engineering, Massachusetts Institute of Technology, 25 Ames Street, Cambridge, Massachusetts 02139, United States
| | - Koji Ohara
- Japan Synchrotron Radiation Research Institute/SPring-8, Kouto 1-1-1, Sayo-gun, Hyogo 679-5198, Japan
| | - Toru Wakihara
- Department
of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yuriy Román-Leshkov
- Department
of Chemical Engineering, Massachusetts Institute of Technology, 25 Ames Street, Cambridge, Massachusetts 02139, United States
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124
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Wexler RB, Martirez JMP, Rappe AM. Active Role of Phosphorus in the Hydrogen Evolving Activity of Nickel Phosphide (0001) Surfaces. ACS Catal 2017. [DOI: 10.1021/acscatal.7b02761] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Robert B. Wexler
- Department
of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - John Mark P. Martirez
- Department
of Mechanical and Aerospace Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Andrew M. Rappe
- Department
of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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125
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Zhang F, Wu J, Jiang W, Hu Q, Zhang B. New and Efficient Electrocatalyst for Hydrogen Production from Water Splitting: Inexpensive, Robust Metallic Glassy Ribbons Based on Iron and Cobalt. ACS APPLIED MATERIALS & INTERFACES 2017; 9:31340-31344. [PMID: 28879761 DOI: 10.1021/acsami.7b09222] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Efficient, stable electrocatalysts are required to promote the hydrogen evolution reaction (HER) to obtain hydrogen as a clean, sustainable fuel via water splitting. In the present work, ribbons of the metallic glass Fe40Co40P13C7 were produced using a conventional melt-spinning technique and assessed as electrocatalysts for HER. In 0.5 M H2SO4, these ribbons generated an overpotential of 118 mV at a current density of 10 mA cm-2. This overpotential remained essentially constant over 20 h under these conditions. On the basis of the excellent properties, these glassy ribbons represent a new type of highly active, robust HER catalyst suitable for practical applications.
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Affiliation(s)
- Fabao Zhang
- Institute of Amorphous Matter Science, School of Materials Science and Engineering & Anhui Provincial Key Lab of Functional Materials and Devices, Hefei University of Technology , Hefei 230009, China
| | - Jili Wu
- Institute of Amorphous Matter Science, School of Materials Science and Engineering & Anhui Provincial Key Lab of Functional Materials and Devices, Hefei University of Technology , Hefei 230009, China
| | - Wei Jiang
- Institute of Amorphous Matter Science, School of Materials Science and Engineering & Anhui Provincial Key Lab of Functional Materials and Devices, Hefei University of Technology , Hefei 230009, China
| | - Qingzhuo Hu
- Institute of Amorphous Matter Science, School of Materials Science and Engineering & Anhui Provincial Key Lab of Functional Materials and Devices, Hefei University of Technology , Hefei 230009, China
| | - Bo Zhang
- Institute of Amorphous Matter Science, School of Materials Science and Engineering & Anhui Provincial Key Lab of Functional Materials and Devices, Hefei University of Technology , Hefei 230009, China
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126
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Xu S, Chen Y, Li Y, Lu A, Yao Y, Dai J, Wang Y, Liu B, Lacey SD, Pastel GR, Kuang Y, Danner VA, Jiang F, Fu KK, Hu L. Universal, In Situ Transformation of Bulky Compounds into Nanoscale Catalysts by High-Temperature Pulse. NANO LETTERS 2017; 17:5817-5822. [PMID: 28771364 DOI: 10.1021/acs.nanolett.7b03019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The synthesis of nanoscale metal compound catalysts has attracted much research attention in the past decade. The challenges of preparation of the metal compound include the complexity of the synthesis process and difficulty of precise control of the reaction conditions. Herein, we report an in situ synthesis of nanoparticles via a high-temperature pulse method where the bulk material acts as the precursor. During the process of rapid heating and cooling, swift melting, anchoring, and recrystallization occur, resulting in the generation of high-purity nanoparticles. In our work, the cobalt boride (Co2B) nanoparticles with a diameter of 10-20 nm uniformly anchored on the reduced graphene oxide (rGO) nanosheets were successfully prepared using the high temperature pulse method. The as-prepared Co2B/rGO composite displayed remarkable electrocatalytic performance for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). We also prepared molybdenum disulfide (MoS2) and cobalt oxide (Co3O4) nanoparticles, thereby demonstrating that the high-temperature pulse is a universal method to synthesize ultrafine metal compound nanoparticles.
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Affiliation(s)
- Shaomao Xu
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Yanan Chen
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Yiju Li
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Aijiang Lu
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Yonggang Yao
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Jiaqi Dai
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Yanbin Wang
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Boyang Liu
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Steven D Lacey
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Glenn R Pastel
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Yudi Kuang
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Valencia A Danner
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Feng Jiang
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Kun Kelvin Fu
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
| | - Liangbing Hu
- Department of Materials Science and Engineering, University of Maryland College Park , College Park, Maryland 20742, United States
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127
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Amin MA, Fadlallah SA, Alosaimi GS, Ahmed EM, Mostafa NY, Roussel P, Szunerits S, Boukherroub R. Room-Temperature Wet Chemical Synthesis of Au NPs/TiH 2/Nanocarved Ti Self-Supported Electrocatalysts for Highly Efficient H 2 Generation. ACS APPLIED MATERIALS & INTERFACES 2017; 9:30115-30126. [PMID: 28771327 DOI: 10.1021/acsami.7b07611] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Self-supported electrocatalysts are a new class of materials exhibiting high catalytic performance for various electrochemical processes and can be directly equipped in energy conversion devices. We present here, for the first time, sparse Au NPs self-supported on etched Ti (nanocarved Ti substrate self-supported with TiH2) as promising catalysts for the electrochemical generation of hydrogen (H2) in KOH solutions. Cleaned, as-polished Ti substrates were etched in highly concentrated sulfuric acid solutions without and with 0.1 M NH4F at room temperature for 15 min. These two etching processes yielded a thin layer of TiH2 (the corrosion product of the etching process) self-supported on nanocarved Ti substrates with different morphologies. While F--free etching process led to formation of parallel channels (average width: 200 nm), where each channel consists of an array of rounded cavities (average width: 150 nm), etching in the presence of F- yielded Ti surface carved with nanogrooves (average width: 100 nm) in parallel orientation. Au NPs were then grown in situ (self-supported) on such etched surfaces via immersion in a standard gold solution at room temperature without using stabilizers or reducing agents, producing Au NPs/TiH2/nanostructured Ti catalysts. These materials were characterized by scanning electron microscopy/energy-dispersive spectroscopy (SEM/EDS), grazing incidence X-ray diffraction (GIXRD), and X-ray photoelectron spectroscopy (XPS). GIXRD confirmed the formation of Au2Ti phase, thus referring to strong chemical interaction between the supported Au NPs and the substrate surface (also evidenced from XPS) as well as a titanium hydride phase of chemical composition TiH2. Electrochemical measurements in 0.1 M KOH solution revealed outstanding hydrogen evolution reaction (HER) electrocatalytic activity for our synthesized catalysts, with Au NPs/TiH2/nanogrooved Ti catalyst being the best one among them. It exhibited fast kinetics for the HER with onset potentials as low as -22 mV vs. RHE, high exchange current density of 0.7 mA cm-2, and a Tafel slope of 113 mV dec-1. These HER electrochemical kinetic parameters are very close to those measured here for a commercial Pt/C catalyst (onset potential: -20 mV, Tafel slope: 110 mV dec-1, and exchange current density: 0.75 mA cm-2). The high catalytic activity of these materials was attributed to the catalytic impacts of both TiH2 phase and self-supported Au NPs (active sites for the catalytic reduction of water to H2), in addition to their nanostructured features which provide a large-surface area for the HER.
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Affiliation(s)
- Mohammed A Amin
- Department of Chemistry, Faculty of Science, Ain Shams University , Abbassia, Cairo 11566, Egypt
| | - Sahar A Fadlallah
- Chemistry Department, Faculty of Science, Cairo University , 12613 Giza, Egypt
| | | | - Emad M Ahmed
- Solid State Physics Department, National Research Center , Dokki, Giza 12311, Egypt
| | - Nasser Y Mostafa
- Chemistry Department, Faculty of Science, Suez Canal University , Ismailia 41522, Egypt
| | - Pascal Roussel
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181 - UCCS - Unité de Catalyse et Chimie du Solide , F-59000 Lille, France
| | - Sabine Szunerits
- Univ. Lille, CNRS, Centrale Lille, ISEN, Univ. Valenciennes, UMR 8520 - IEMN , F-59000 Lille, France
| | - Rabah Boukherroub
- Univ. Lille, CNRS, Centrale Lille, ISEN, Univ. Valenciennes, UMR 8520 - IEMN , F-59000 Lille, France
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128
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Miao M, Pan J, He T, Yan Y, Xia BY, Wang X. Molybdenum Carbide-Based Electrocatalysts for Hydrogen Evolution Reaction. Chemistry 2017; 23:10947-10961. [DOI: 10.1002/chem.201701064] [Citation(s) in RCA: 230] [Impact Index Per Article: 32.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Mao Miao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education); Hubei Key Laboratory of Material Chemistry and Service Failure; School of Chemistry and Chemical Engineering; Wuhan National Laboratory for Optoelectronics; Huazhong University of Science and Technology (HUST); 1037 Luoyu Road Wuhan 430074 P.R. China
- Shenzhen Institute of Huazhong University of Science and Technology; Shenzhen 518000 P.R. China
| | - Jing Pan
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education); Hubei Key Laboratory of Material Chemistry and Service Failure; School of Chemistry and Chemical Engineering; Wuhan National Laboratory for Optoelectronics; Huazhong University of Science and Technology (HUST); 1037 Luoyu Road Wuhan 430074 P.R. China
- Shenzhen Institute of Huazhong University of Science and Technology; Shenzhen 518000 P.R. China
| | - Ting He
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education); Hubei Key Laboratory of Material Chemistry and Service Failure; School of Chemistry and Chemical Engineering; Wuhan National Laboratory for Optoelectronics; Huazhong University of Science and Technology (HUST); 1037 Luoyu Road Wuhan 430074 P.R. China
- Shenzhen Institute of Huazhong University of Science and Technology; Shenzhen 518000 P.R. China
| | - Ya Yan
- School of Materials Science & Engineering; University of Shanghai for Science and Technology; 516 Jungong Road Shanghai 200093 P.R. China
- School of Chemical and Biomedical Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Bao Yu Xia
- Key Laboratory of Material Chemistry for Energy Conversion and Storage (Ministry of Education); Hubei Key Laboratory of Material Chemistry and Service Failure; School of Chemistry and Chemical Engineering; Wuhan National Laboratory for Optoelectronics; Huazhong University of Science and Technology (HUST); 1037 Luoyu Road Wuhan 430074 P.R. China
- Shenzhen Institute of Huazhong University of Science and Technology; Shenzhen 518000 P.R. China
- School of Chemical and Biomedical Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
| | - Xin Wang
- School of Chemical and Biomedical Engineering; Nanyang Technological University; 50 Nanyang Avenue 639798 Singapore
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129
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Garg A, Milina M, Ball M, Zanchet D, Hunt ST, Dumesic JA, Román‐Leshkov Y. Transition‐Metal Nitride Core@Noble‐Metal Shell Nanoparticles as Highly CO Tolerant Catalysts. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201704632] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Aaron Garg
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Maria Milina
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Madelyn Ball
- Department of Chemical and Biological Engineering University of Wisconsin-Madison Madison WI 53706 USA
| | - Daniela Zanchet
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
- Institute of Chemistry University of Campinas Campinas SP 13083-970 Brazil
| | - Sean T. Hunt
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - James A. Dumesic
- Department of Chemical and Biological Engineering University of Wisconsin-Madison Madison WI 53706 USA
| | - Yuriy Román‐Leshkov
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
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130
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Garg A, Milina M, Ball M, Zanchet D, Hunt ST, Dumesic JA, Román‐Leshkov Y. Transition‐Metal Nitride Core@Noble‐Metal Shell Nanoparticles as Highly CO Tolerant Catalysts. Angew Chem Int Ed Engl 2017; 56:8828-8833. [DOI: 10.1002/anie.201704632] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Aaron Garg
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Maria Milina
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Madelyn Ball
- Department of Chemical and Biological Engineering University of Wisconsin-Madison Madison WI 53706 USA
| | - Daniela Zanchet
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
- Institute of Chemistry University of Campinas Campinas SP 13083-970 Brazil
| | - Sean T. Hunt
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - James A. Dumesic
- Department of Chemical and Biological Engineering University of Wisconsin-Madison Madison WI 53706 USA
| | - Yuriy Román‐Leshkov
- Department of Chemical Engineering Massachusetts Institute of Technology Cambridge MA 02139 USA
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131
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Chen ZY, Duan LF, Sheng T, Lin X, Chen YF, Chu YQ, Sun SG, Lin WF. Dodecahedral W@WC Composite as Efficient Catalyst for Hydrogen Evolution and Nitrobenzene Reduction Reactions. ACS APPLIED MATERIALS & INTERFACES 2017; 9:20594-20602. [PMID: 28562013 DOI: 10.1021/acsami.7b04419] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Core-shell composites with strong phase-phase contact could provide an incentive for catalytic activity. A simple, yet efficient, H2O-mediated method has been developed to synthesize a mesoscopic core-shell W@WC architecture with a dodecahedral microstructure, via a one-pot reaction. The H2O plays an important role in the resistance of carbon diffusion, resulting in the formation of the W core and W-terminated WC shell. Density functional theory (DFT) calculations reveal that adding W as core reduced the oxygen adsorption energy and provided the W-terminated WC surface. The W@WC exhibits significant electrocatalytic activities toward hydrogen evolution and nitrobenzene electroreduction reactions, which are comparable to those found for commercial Pt/C, and substantially higher than those found for meso- and nano-WC materials. The experimental results were explained by DFT calculations based on the energy profiles in the hydrogen evolution reactions over WC, W@WC, and Pt model surfaces. The W@WC also shows a high thermal stability and thus may serve as a promising more economical alternative to Pt catalysts in these important energy conversion and environmental protection applications. The current approach can also be extended or adapted to various metals and carbides, allowing for the design and fabrication of a wide range of catalytic and other multifunctional composites.
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Affiliation(s)
- Zhao-Yang Chen
- State Key Laboratory Breeding Base for Green Chemistry Synthesis Technology, International Sci. & Tech. Cooperation Base of Energy Materials and Application, College of Chemical Engineering and Materials Science, Zhejiang University of Technology , 18 Chaowang Road, Hangzhou 310032, P. R. China
| | - Long-Fa Duan
- State Key Laboratory Breeding Base for Green Chemistry Synthesis Technology, International Sci. & Tech. Cooperation Base of Energy Materials and Application, College of Chemical Engineering and Materials Science, Zhejiang University of Technology , 18 Chaowang Road, Hangzhou 310032, P. R. China
| | - Tian Sheng
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen, 361005, P. R. China
| | - Xiao Lin
- Department of Chemical Engineering and Biotechnology, University of Cambridge , Cambridge CB2 3RA, United Kingdom
| | - Ya-Feng Chen
- Department of Chemical Engineering, Loughborough University , Loughborough, Leicestershire, LE11 3TU, United Kingdom
| | - You-Qun Chu
- State Key Laboratory Breeding Base for Green Chemistry Synthesis Technology, International Sci. & Tech. Cooperation Base of Energy Materials and Application, College of Chemical Engineering and Materials Science, Zhejiang University of Technology , 18 Chaowang Road, Hangzhou 310032, P. R. China
| | - Shi-Gang Sun
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen, 361005, P. R. China
| | - Wen-Feng Lin
- Department of Chemical Engineering, Loughborough University , Loughborough, Leicestershire, LE11 3TU, United Kingdom
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132
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Mittermeier T, Madkikar P, Wang X, Gasteiger HA, Piana M. Probing Transition-Metal Silicides as PGM-Free Catalysts for Hydrogen Oxidation and Evolution in Acidic Medium. MATERIALS 2017; 10:ma10060661. [PMID: 28773022 PMCID: PMC5554042 DOI: 10.3390/ma10060661] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 06/10/2017] [Accepted: 06/13/2017] [Indexed: 11/23/2022]
Abstract
In this experimental study, we investigate various transition-metal silicides as platinum-group-metal-(PGM)-free electrocatalysts for the hydrogen oxidation reaction (HOR), and for the hydrogen evolution reaction (HER) in acidic environment for the first time. Using cyclic voltammetry in 0.1 M HClO4, we first demonstrate that the tested materials exhibit sufficient stability against dissolution in the relevant potential window. Further, we determine the HOR and HER activities for Mo, W, Ta, Ni and Mo-Ni silicides in rotating disk electrode experiments. In conclusion, for the HOR only Ni2Si shows limited activity, and the HER activity of the investigated silicides is considerably lower compared to other PGM-free HER catalysts reported in the literature.
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Affiliation(s)
- Thomas Mittermeier
- Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstr. 4, D-85748 Garching, Germany.
| | - Pankaj Madkikar
- Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstr. 4, D-85748 Garching, Germany.
| | - Xiaodong Wang
- Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstr. 4, D-85748 Garching, Germany.
- Johnson Matthey Catalysts (Germany) GmbH, Bahnhofstr. 43, D-96257 Redwitz, Germany.
| | - Hubert A Gasteiger
- Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstr. 4, D-85748 Garching, Germany.
| | - Michele Piana
- Department of Chemistry and Catalysis Research Center, Technical University of Munich, Lichtenbergstr. 4, D-85748 Garching, Germany.
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133
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Zhang X, Huang L, Han Y, Xu M, Dong S. Nitrogen-doped carbon encapsulating γ-MoC/Ni heterostructures for efficient oxygen evolution electrocatalysts. NANOSCALE 2017; 9:5583-5588. [PMID: 28406257 DOI: 10.1039/c7nr01027c] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Developing efficient and earth-abundant oxygen evolution reaction (OER) electrocatalysts is of great importance in renewable energy research. Herein, we report nitrogen-doped carbon encapsulating γ-MoC/Ni heterostructures (γ-MoC/Ni@NC) for the first time as efficient OER electrocatalysts. The composites can be controlled by the addition of a Mo source to form a nanoparticle-assembled hierarchically porous nanostructure, which can enlarge the specific surface area, thus exposing more active sites. Moreover, we demonstrate that the formation of γ-MoC@Ni heterostructures and the resulting synergistic effect between γ-MoC and Ni can facilitate the reaction kinetics, leading to significantly improved OER activity with an onset overpotential of merely 240 mV, and a low overpotential of 310 mV to afford a current density of 10 mA cm-2. This work provides a new insight into the development of highly active and inexpensive OER electrocatalysts.
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Affiliation(s)
- Xueping Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P.R. China
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134
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Xu YT, Xiao X, Ye ZM, Zhao S, Shen R, He CT, Zhang JP, Li Y, Chen XM. Cage-Confinement Pyrolysis Route to Ultrasmall Tungsten Carbide Nanoparticles for Efficient Electrocatalytic Hydrogen Evolution. J Am Chem Soc 2017; 139:5285-5288. [DOI: 10.1021/jacs.7b00165] [Citation(s) in RCA: 294] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Yan-Tong Xu
- MOE
Key Laboratory of Bioinorganic and Synthetic Chemistry, School of
Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Xiaofen Xiao
- Key
Laboratory for Polymeric Composite and Functional Materials of Ministry
of Education, Key Laboratory of High Performance Polymer-Based Composites
of Guangdong Province, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Zi-Ming Ye
- MOE
Key Laboratory of Bioinorganic and Synthetic Chemistry, School of
Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Shenlong Zhao
- CAS
Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center
for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Rongan Shen
- Department
of Chemistry, Tsinghua University, Beijing 100084, China
| | - Chun-Ting He
- MOE
Key Laboratory of Bioinorganic and Synthetic Chemistry, School of
Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Jie-Peng Zhang
- MOE
Key Laboratory of Bioinorganic and Synthetic Chemistry, School of
Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Yadong Li
- Department
of Chemistry, Tsinghua University, Beijing 100084, China
| | - Xiao-Ming Chen
- MOE
Key Laboratory of Bioinorganic and Synthetic Chemistry, School of
Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
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135
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Wang J, Xu F, Jin H, Chen Y, Wang Y. Non-Noble Metal-based Carbon Composites in Hydrogen Evolution Reaction: Fundamentals to Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1605838. [PMID: 28234409 DOI: 10.1002/adma.201605838] [Citation(s) in RCA: 577] [Impact Index Per Article: 82.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2016] [Revised: 12/15/2016] [Indexed: 05/17/2023]
Abstract
Hydrogen has been hailed as a clean and sustainable alternative to finite fossil fuels in many energy systems. Water splitting is an important method for hydrogen production in high purity and large quantities. To accelerate the hydrogen evolution reaction (HER) rate, it is highly necessary to develop high efficiency catalysts and to select a proper electrolyte. Herein, the performances of non-noble metal-based carbon composites under various pH values (acid, alkaline and neutral media) for HER in terms of catalyst synthesis, structure and molecular design are systematically discussed. A detailed analysis of the structure-activity-pH correlations in the HER process gives an insight on the origin of the pH-dependence for HER, and provide guidance for future HER mechanism studies on non-noble metal-based carbon composites. Furthermore, this Review gives a fresh impetus to rational design of high-performance noble-metal-free composites catalysts and guide researchers to employ the established electrocatalysts in proper water electrolysis technologies.
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Affiliation(s)
- Jing Wang
- Advanced Materials and Catalysis Group, Center for Chemistry of High-performance and Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310028, P. R. China
| | - Fan Xu
- Advanced Materials and Catalysis Group, Center for Chemistry of High-performance and Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310028, P. R. China
| | - Haiyan Jin
- Advanced Materials and Catalysis Group, Center for Chemistry of High-performance and Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310028, P. R. China
| | - Yiqing Chen
- Advanced Materials and Catalysis Group, Center for Chemistry of High-performance and Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310028, P. R. China
| | - Yong Wang
- Advanced Materials and Catalysis Group, Center for Chemistry of High-performance and Novel Materials, Department of Chemistry, Zhejiang University, Hangzhou, 310028, P. R. China
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136
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Yang TT, Saidi WA. Tuning the hydrogen evolution activity of β-Mo 2C nanoparticles via control of their growth conditions. NANOSCALE 2017; 9:3252-3260. [PMID: 28225110 DOI: 10.1039/c6nr09893b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The use of water electrocatalysis for hydrogen production is a promising, sustainable and greenhouse-gas-free process to develop disruptive renewable energy technologies. Transition metal carbides, in particular β-phase Mo2C, are garnering increased attention as hydrogen evolution reaction (HER) catalysts due to their favourable synthesis conditions, stability and high catalytic efficiency. We use a thermodynamic approach in conjunction with density functional theory and a kinetic model of exchange current density to systematically study the HER activity of β-Mo2C under different experimental conditions. We show that the (011) surface has the highest HER activity, which is rationalized by its lack of strong Mo-based hydrogen adsorption sites. Thus, the HER efficiency of β-Mo2C can be tuned using nanoparticles (NPs) that expose larger fractions of this termination. We give definite maps between NP morphologies and experimental synthesis conditions, and show that the control of the carbon chemical potential during synthesis can expose up to 90% of the (011) surface, while ambient H2 has little effect on the NP morphology. The "volcano" plot shows that under these optimum conditions, the NP exchange current density is ∼10-5 A cm-2, that is only slightly smaller than that of Pt (111).
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Affiliation(s)
- Timothy T Yang
- Department of Materials Science and Engineering, University of Pittsburgh, Pittsburgh, PA 15260, USA.
| | - Wissam A Saidi
- Department of Materials Science and Engineering, University of Pittsburgh, Pittsburgh, PA 15260, USA.
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137
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He C, Tao J. Three-dimensional hollow porous Co6Mo6C nanoframe as an highly active and durable electrocatalyst for water splitting. J Catal 2017. [DOI: 10.1016/j.jcat.2017.01.007] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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138
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Wang J, Mao S, Liu Z, Wei Z, Wang H, Chen Y, Wang Y. Dominating Role of Ni 0 on the Interface of Ni/NiO for Enhanced Hydrogen Evolution Reaction. ACS APPLIED MATERIALS & INTERFACES 2017; 9:7139-7147. [PMID: 28165222 DOI: 10.1021/acsami.6b15377] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The research of a robust catalytic system based on single NiOx electrocatalyst for hydrogen evolution reaction (HER) remains a huge challenge. Particularly, the factors that dominate the catalytic properties of NiOx-based hybrids for HER have not been clearly demonstrated. Herein, a convenient protocol for the fabrication of NiOx@bamboo-like carbon nanotube hybrids (NiOx@BCNTs) is designed. The hybrids exhibit superb catalytic ability and considerable durability in alkaline solution. A benchmark HER current density of 10 mA cm-2 has been achieved at an overpotential of ∼79 mV. In combination with the experimental results and density functional theory (DFT) calculations, this for the first time definitely validates that the inherent high Ni0 ratio and the Ni0 on the interface of Ni/NiO play a vital role in the outstanding catalytic performance. Especially, the Ni0 on the interface of Ni/NiO performs superior activity for water splitting compared with that of bulk Ni0. These conclusions provide guidance for the rational design of the future non-noble metallic catalysts.
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Affiliation(s)
- Jing Wang
- Advanced Materials and Catalysis Group, Center for Chemistry of High-performance and Novel Materials, Department of Chemistry, Zhejiang University , Hangzhou 310028, P. R. China
| | - Shanjun Mao
- Advanced Materials and Catalysis Group, Center for Chemistry of High-performance and Novel Materials, Department of Chemistry, Zhejiang University , Hangzhou 310028, P. R. China
| | - Zeyan Liu
- Advanced Materials and Catalysis Group, Center for Chemistry of High-performance and Novel Materials, Department of Chemistry, Zhejiang University , Hangzhou 310028, P. R. China
| | - Zhongzhe Wei
- Advanced Materials and Catalysis Group, Center for Chemistry of High-performance and Novel Materials, Department of Chemistry, Zhejiang University , Hangzhou 310028, P. R. China
| | - Haiyan Wang
- Advanced Materials and Catalysis Group, Center for Chemistry of High-performance and Novel Materials, Department of Chemistry, Zhejiang University , Hangzhou 310028, P. R. China
| | - Yiqing Chen
- Advanced Materials and Catalysis Group, Center for Chemistry of High-performance and Novel Materials, Department of Chemistry, Zhejiang University , Hangzhou 310028, P. R. China
| | - Yong Wang
- Advanced Materials and Catalysis Group, Center for Chemistry of High-performance and Novel Materials, Department of Chemistry, Zhejiang University , Hangzhou 310028, P. R. China
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139
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Qu Y, Yang M, Chai J, Tang Z, Shao M, Kwok CT, Yang M, Wang Z, Chua D, Wang S, Lu Z, Pan H. Facile Synthesis of Vanadium-Doped Ni 3S 2 Nanowire Arrays as Active Electrocatalyst for Hydrogen Evolution Reaction. ACS APPLIED MATERIALS & INTERFACES 2017; 9:5959-5967. [PMID: 28112954 DOI: 10.1021/acsami.6b13244] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Ni3S2 nanowire arrays doped with vanadium(V) are directly grown on nickel foam by a facile one-step hydrothermal method. It is found that the doping can promote the formation of Ni3S2 nanowires at a low temperature. The doped nanowires show excellent electrocatalytic performance toward hydrogen evolution reaction (HER), and outperform pure Ni3S2 and other Ni3S2-based compounds. The stability test shows that the performance of V-doped Ni3S2 nanowires is improved and stabilized after thousands of linear sweep voltammetry test. The onset potential of V-doped Ni3S2 nanowire can be as low as 39 mV, which is comparable to platinum. The nanowire has an overpotential of 68 mV at 10 mA cm-2, a relatively low Tafel slope of 112 mV dec-1, good stability and high Faradaic efficiency. First-principles calculations show that the V-doping in Ni3S2 extremely enhances the free carrier density near the Fermi level, resulting in much improved catalytic activities. We expect that the doping can be an effective way to enhance the catalytic performance of metal disulfides in hydrogen evolution reaction and V-doped Ni3S2 nanowire is one of the most promising electrocatalysts for hydrogen production.
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Affiliation(s)
- Yuanju Qu
- Institute of Applied Physics and Materials Engineering, University of Macau , Macao SAR, P. R. China
- Department of Electromechanical Engineering, Faculty of Science and Technology, University of Macau , Macao SAR, P. R. China
| | - Mingyang Yang
- Institute of Applied Physics and Materials Engineering, University of Macau , Macao SAR, P. R. China
- Department of Materials Science and Engineering, Shenzhen Key Laboratory of Hydrogen Energy, South University of Science and Technology of China , Shengzhen 518055, Guangdong P. R. China
| | - Jianwei Chai
- Institute of Materials Research and Engineering (IMRE), A*STAR (Agency for Science, Technology, and Research) , #08-03, 2 Fusionopolis Way, Innovis, Singapore 138634
| | - Zhe Tang
- Department of Materials Science and Engineering, National University of Singapore , Singapore 119077
| | - Mengmeng Shao
- Institute of Applied Physics and Materials Engineering, University of Macau , Macao SAR, P. R. China
| | - Chi Tat Kwok
- Institute of Applied Physics and Materials Engineering, University of Macau , Macao SAR, P. R. China
- Department of Electromechanical Engineering, Faculty of Science and Technology, University of Macau , Macao SAR, P. R. China
| | - Ming Yang
- Institute of Materials Research and Engineering (IMRE), A*STAR (Agency for Science, Technology, and Research) , #08-03, 2 Fusionopolis Way, Innovis, Singapore 138634
| | - Zhenyu Wang
- Department of Materials Science and Engineering, Shenzhen Key Laboratory of Hydrogen Energy, South University of Science and Technology of China , Shengzhen 518055, Guangdong P. R. China
| | - Daniel Chua
- Department of Materials Science and Engineering, National University of Singapore , Singapore 119077
| | - Shijie Wang
- Institute of Materials Research and Engineering (IMRE), A*STAR (Agency for Science, Technology, and Research) , #08-03, 2 Fusionopolis Way, Innovis, Singapore 138634
| | - Zhouguang Lu
- Department of Materials Science and Engineering, Shenzhen Key Laboratory of Hydrogen Energy, South University of Science and Technology of China , Shengzhen 518055, Guangdong P. R. China
| | - Hui Pan
- Institute of Applied Physics and Materials Engineering, University of Macau , Macao SAR, P. R. China
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140
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Xia Y, Gilroy KD, Peng H, Xia X. Keimvermitteltes Wachstum kolloidaler Metallnanokristalle. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201604731] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Younan Xia
- The Wallace H. Coulter Department of Biomedical Engineering Georgia Institute of Technology and Emory University Atlanta GA 30332 USA
- School of Chemistry and Biochemistry School of Chemical and Biomolecular Engineering Georgia Institute of Technology Atlanta GA 30332 USA
| | - Kyle D. Gilroy
- The Wallace H. Coulter Department of Biomedical Engineering Georgia Institute of Technology and Emory University Atlanta GA 30332 USA
| | - Hsin‐Chieh Peng
- The Wallace H. Coulter Department of Biomedical Engineering Georgia Institute of Technology and Emory University Atlanta GA 30332 USA
| | - Xiaohu Xia
- The Wallace H. Coulter Department of Biomedical Engineering Georgia Institute of Technology and Emory University Atlanta GA 30332 USA
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141
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Xia Y, Gilroy KD, Peng HC, Xia X. Seed-Mediated Growth of Colloidal Metal Nanocrystals. Angew Chem Int Ed Engl 2016; 56:60-95. [PMID: 27966807 DOI: 10.1002/anie.201604731] [Citation(s) in RCA: 355] [Impact Index Per Article: 44.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Revised: 06/18/2016] [Indexed: 11/08/2022]
Abstract
Seed-mediated growth is a powerful and versatile approach for the synthesis of colloidal metal nanocrystals. The vast allure of this approach mainly stems from the staggering degree of control one can achieve over the size, shape, composition, and structure of nanocrystals. These parameters not only control the properties of nanocrystals but also determine their relevance to, and performance in, various applications. The ingenuity and artistry inherent to seed-mediated growth offer extensive promise, enhancing a number of existing applications and opening the door to new developments. This Review demonstrates how the diversity of metal nanocrystals can be expanded with endless opportunities by using seeds with well-defined and controllable internal structures in conjunction with a proper combination of capping agent and reduction kinetics. New capabilities and future directions are also highlighted.
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Affiliation(s)
- Younan Xia
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA.,School of Chemistry and Biochemistry, School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Kyle D Gilroy
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA
| | - Hsin-Chieh Peng
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA
| | - Xiaohu Xia
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA
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142
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Hendon CH, Hunt ST, Milina M, Butler KT, Walsh A, Román-Leshkov Y. Realistic Surface Descriptions of Heterometallic Interfaces: The Case of TiWC Coated in Noble Metals. J Phys Chem Lett 2016; 7:4475-4482. [PMID: 27786468 DOI: 10.1021/acs.jpclett.6b02293] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Noble metal-coated core-shell nanoparticles have been applied to a suite of catalytic applications, with the aim of decreasing the noble metal loading while ideally improving their performance. The chemistry and therefore activity at the surface of these materials are intimately related to the accurate description of the core-shell interface. Using density functional theory, we developed a procedure to obtain realistic surface topology descriptions at the heterometallic junction. This procedure was applied to a topical series of catalysts: Ti0.1W0.9C coated in atomically thin monolayers of noble metals. Our quantum chemical calculations provide access to both relevant surface descriptions of these materials and also rationalize several experimental observations. Our general procedure paves the way for the rationalization and prediction of next-generation heterometallic catalysts.
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Affiliation(s)
- Christopher H Hendon
- Department of Chemical Engineering, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States
| | - Sean T Hunt
- Department of Chemical Engineering, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States
| | - Maria Milina
- Department of Chemical Engineering, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States
| | - Keith T Butler
- Department of Chemistry, University of Bath , Claverton Down, BA2 7AY Bath, United Kingdom
| | - Aron Walsh
- Department of Materials, Imperial College London , SW7 2AZ London, United Kingdom
- Department of Materials Science and Engineering, Yonsei University , Seoul, South Korea
| | - Yuriy Román-Leshkov
- Department of Chemical Engineering, Massachusetts Institute of Technology , Cambridge, Massachusetts 02139, United States
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143
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Xiao H, Wang S, Wang C, Li Y, Zhang H, Wang Z, Zhou Y, An C, Zhang J. Lamellar structured CoSe 2 nanosheets directly arrayed on Ti plate as an efficient electrochemical catalyst for hydrogen evolution. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.09.043] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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144
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Mo J, Kang Z, Retterer ST, Cullen DA, Toops TJ, Green JB, Mench MM, Zhang FY. Discovery of true electrochemical reactions for ultrahigh catalyst mass activity in water splitting. SCIENCE ADVANCES 2016; 2:e1600690. [PMID: 28138516 PMCID: PMC5262453 DOI: 10.1126/sciadv.1600690] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 09/29/2016] [Indexed: 05/26/2023]
Abstract
Better understanding of true electrochemical reaction behaviors in electrochemical energy devices has long been desired. It has been assumed so far that the reactions occur across the entire catalyst layer (CL), which is designed and fabricated uniformly with catalysts, conductors of protons and electrons, and pathways for reactants and products. By introducing a state-of-the-art characterization system, a thin, highly tunable liquid/gas diffusion layer (LGDL), and an innovative design of electrochemical proton exchange membrane electrolyzer cells (PEMECs), the electrochemical reactions on both microspatial and microtemporal scales are revealed for the first time. Surprisingly, reactions occur only on the CL adjacent to good electrical conductors. On the basis of these findings, new CL fabrications on the novel LGDLs exhibit more than 50 times higher mass activity than conventional catalyst-coated membranes in PEMECs. This discovery presents an opportunity to enhance the multiphase interfacial effects, maximizing the use of the catalysts and significantly reducing the cost of these devices.
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Affiliation(s)
- Jingke Mo
- Department of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee (UT) Space Institute, UT, Knoxville, TN 37388, USA
| | - Zhenye Kang
- Department of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee (UT) Space Institute, UT, Knoxville, TN 37388, USA
| | | | | | - Todd J. Toops
- Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | | | - Matthew M. Mench
- Department of Mechanical, Aerospace, and Biomedical Engineering, UT, Knoxville, TN 37996, USA
| | - Feng-Yuan Zhang
- Department of Mechanical, Aerospace, and Biomedical Engineering, University of Tennessee (UT) Space Institute, UT, Knoxville, TN 37388, USA
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145
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Ishii T, Yamada K, Osuga N, Imashiro Y, Ozaki JI. Single-Step Synthesis of W 2C Nanoparticle-Dispersed Carbon Electrocatalysts for Hydrogen Evolution Reactions Utilizing Phosphate Groups on Carbon Edge Sites. ACS OMEGA 2016; 1:689-695. [PMID: 31457156 PMCID: PMC6640763 DOI: 10.1021/acsomega.6b00179] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Accepted: 10/07/2016] [Indexed: 05/30/2023]
Abstract
A novel, one-step protocol for the selective synthesis of W2C nanoparticles from phosphotungstic acid (H3PW12O40), a low-cost and commercially available tungsten compound, was developed. The nanoparticles had diameters of 1-50 nm and were dispersed on a carbon substrate. The W2C nanoparticles were prepared by a simple operation sequence, involving impregnation of carbon black with H3PW12O40 followed by calcination at 1000 °C. X-ray diffraction study revealed the selective formation of the W2C phase in the samples prepared, whereas the tungsten carbide (WC) phase was present in the control prepared from H2WO4. Stable W2C nanoparticles were obtained using this method owing to the presence of phosphate at the interfaces between the W2C nanoparticles and the carbon substrates, which inhibited the diffusion of carbon atoms from the carbon substrates to the W2C nanoparticles, leading to the formation of WC. The W2C nanoparticles prepared showed an excellent catalytic activity for the hydrogen evolution reaction (HER), with low Tafel slopes of ∼50 mV/decade. The HER catalytic activity was notably high, being comparable to that of MoS2, which is a promising alternative to Pt. The present method can potentially be applied to produce highly effective, low-cost, Pt-free electrocatalysts for the HER.
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Affiliation(s)
- Takafumi Ishii
- International
Research and Education Center for Element Science, Faculty of Science
and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Keita Yamada
- International
Research and Education Center for Element Science, Faculty of Science
and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
| | - Noriko Osuga
- Nisshinbo
Holdings Inc., 1-2-3
Onodai, Midori-ku, Chiba, Chiba 267-0056, Japan
| | - Yasuo Imashiro
- Nisshinbo
Holdings Inc., 1-2-3
Onodai, Midori-ku, Chiba, Chiba 267-0056, Japan
| | - Jun-ichi Ozaki
- International
Research and Education Center for Element Science, Faculty of Science
and Technology, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan
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146
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Gong Q, Wang Y, Hu Q, Zhou J, Feng R, Duchesne PN, Zhang P, Chen F, Han N, Li Y, Jin C, Li Y, Lee ST. Ultrasmall and phase-pure W 2C nanoparticles for efficient electrocatalytic and photoelectrochemical hydrogen evolution. Nat Commun 2016; 7:13216. [PMID: 27752046 PMCID: PMC5071847 DOI: 10.1038/ncomms13216] [Citation(s) in RCA: 140] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 09/13/2016] [Indexed: 02/08/2023] Open
Abstract
Earlier research has been primarily focused on WC as one of the most promising earth-abundant electrocatalysts for hydrogen evolution reaction (HER), whereas the other compound in this carbide family-W2C-has received far less attention. Our theoretical calculations suggest that such a focus is misplaced and W2C is potentially more HER-active than WC. Nevertheless, the preparation of phase pure and sintering-free W2C nanostructures represents a formidable challenge. Here we develop an improved carburization method and successfully prepare ultrasmall and phase-pure W2C nanoparticles. When evaluated for HER electrocatalysis, W2C nanoparticles exhibit a small onset overpotential of 50 mV, a Tafel slope of 45 mV dec-1 and outstanding long-term cycling stability, which are dramatically improved over all existing WC-based materials. In addition, the integration of W2C nanoparticles with p-type Si nanowires enables highly active and sustainable solar-driven hydrogen production. Our results highlight the great potential of this traditionally non-popular material in HER electrocatalysis.
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Affiliation(s)
- Qiufang Gong
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
| | - Yu Wang
- College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Qi Hu
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Jigang Zhou
- Canadian Light Source Inc., Saskatoon, Saskatchewan, Canada S7N 0X4
| | - Renfei Feng
- Canadian Light Source Inc., Saskatoon, Saskatchewan, Canada S7N 0X4
| | - Paul N. Duchesne
- Department of Chemistry, Dalhousie University, Halifax, Canada NS B3H 4R2
| | - Peng Zhang
- Department of Chemistry, Dalhousie University, Halifax, Canada NS B3H 4R2
| | - Fengjiao Chen
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
| | - Na Han
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
| | - Yafei Li
- College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Chuanhong Jin
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Yanguang Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
| | - Shuit-Tong Lee
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China
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147
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An efficient nanostructured copper(I) sulfide-based hydrogen evolution electrocatalyst at neutral pH. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.08.129] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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148
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Wang J, Wang W, Wang Z, Chen JG, Liu CJ. Porous MS2/MO2 (M = W, Mo) Nanorods as Efficient Hydrogen Evolution Reaction Catalysts. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01927] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jiajun Wang
- Collaborative
Innovation Center of Chemical Science and Engineering, School of Chemical
Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Wei Wang
- Collaborative
Innovation Center of Chemical Science and Engineering, School of Chemical
Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Zongyuan Wang
- Collaborative
Innovation Center of Chemical Science and Engineering, School of Chemical
Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Jingguang G. Chen
- Department
of Chemical Engineering, Columbia University, New York, New York 10027, United States
| | - Chang-jun Liu
- Collaborative
Innovation Center of Chemical Science and Engineering, School of Chemical
Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
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149
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Pd/TiN nanocomposite catalysts for selective hydrogenation of phenol and its derivatives. CHINESE CHEM LETT 2016. [DOI: 10.1016/j.cclet.2016.03.036] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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150
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Calvillo L, Valero-Vidal C, Agnoli S, Sezen H, Rüdiger C, Kunze-Liebhäuser J, Granozzi G. Combined Photoemission Spectroscopy and Electrochemical Study of a Mixture of (Oxy)carbides as Potential Innovative Supports and Electrocatalysts. ACS APPLIED MATERIALS & INTERFACES 2016; 8:19418-19427. [PMID: 27399154 DOI: 10.1021/acsami.6b04414] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Active and stable non-noble metal materials, able to substitute Pt as catalyst or to reduce the Pt amount, are vitally important for the extended commercialization of energy conversion technologies, such as fuel cells and electrolyzers. Here, we report a fundamental study of nonstoichiometric tungsten carbide (WxC) and its interaction with titanium oxycarbide (TiOxCy) under electrochemical working conditions. In particular, the electrochemical activity and stability of the WxC/TiOxCy system toward the ethanol electrooxidation reaction (EOR) and hydrogen evolution reaction (HER) are investigated. The chemical changes caused by the applied potential are established by combining photoemission spectroscopy and electrochemistry. WxC is not active toward the ethanol electrooxidation reaction at room temperature but it is highly stable under these conditions thanks to the formation of a passive thin film on the surface, consisting mainly of WO2 and W2O5, which prevents the full oxidation of WxC. In addition, WxC is able to adsorb ethanol, forming ethoxy groups on the surface, which constitutes the first step for the ethanol oxidation. The interaction between WxC and TiOxCy plays an important role in the electrochemical stability of WxC since specific orientations of the substrate are able to stabilize WxC and prevent its corrosion. The beneficial interaction with the substrate and the specific surface chemistry makes tungsten carbide a good electrocatalyst support or cocatalyst for direct ethanol fuel cells. However, WxC is active toward the HER and chemically stable under hydrogen reduction conditions, since no changes in the chemical composition or dissolution of the film are observed. This makes tungsten carbide a good candidate as electrocatalyst support or cocatalyst for the electrochemical production of hydrogen.
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Affiliation(s)
- Laura Calvillo
- Department of Chemical Sciences and INSTM unit, Università di Padova , Via Marzolo 1, 35131 Padova, Italia
| | - Carlos Valero-Vidal
- Institute of Physical Chemistry, Leopold-Franzens-University Innsbruck , Innrain 52c, A-6020 Innsbruck, Austria
| | - Stefano Agnoli
- Department of Chemical Sciences and INSTM unit, Università di Padova , Via Marzolo 1, 35131 Padova, Italia
| | - Hikmet Sezen
- Elettra-Sincrotrone Trieste SCpA , SS14-Km163.5 in Area Science Park, 34149 Trieste, Italy
| | - Celine Rüdiger
- Institute of Physical Chemistry, Leopold-Franzens-University Innsbruck , Innrain 52c, A-6020 Innsbruck, Austria
| | - Julia Kunze-Liebhäuser
- Institute of Physical Chemistry, Leopold-Franzens-University Innsbruck , Innrain 52c, A-6020 Innsbruck, Austria
| | - Gaetano Granozzi
- Department of Chemical Sciences and INSTM unit, Università di Padova , Via Marzolo 1, 35131 Padova, Italia
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