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Hu F, Huang P, Feng X, Zhou C, Zeng X, Liu C, Wang G, Yang X, Hu H. A porous network of boron-doped IrO 2 nanoneedles with enhanced mass activity for acidic oxygen evolution reactions. MATERIALS HORIZONS 2024. [PMID: 39508486 DOI: 10.1039/d4mh01358a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2024]
Abstract
While proton exchange membrane water electrolyzers (PEMWEs) are essential for realizing practical hydrogen production, the trade-off among activity, stability, and cost of state-of-the-art iridium (Ir)-based oxygen evolution reaction (OER) electrocatalysts for PEMWE implementation is still prohibitively challenging. Ir minimization coupled with mass activity improvement of Ir-based catalysts is a promising strategy to address this challenge. Here, we present a discovery demonstrating that boron doping facilitates the one-dimensional (1D) anisotropic growth of IrO2 crystals, as supported by both experimental and theoretical evidence. The synthesized porous network of ultralong boron-doped iridium oxide (B-IrO2) nanoneedles exhibits improved electronic conductivity and reduced charge transfer resistance, thereby increasing the number of active sites. As a result, B-IrO2 displays an ultrahigh OER mass activity of 3656.3 A gIr-1 with an Ir loading of 0.08 mgIr cm-2, which is 4.02 and 6.18 times higher than those of the un-doped IrO2 nanoneedle network (L-IrO2) and Adams IrO2 nanoparticles (A-IrO2), respectively. Density functional theory (DFT) calculations reveal that the B doping moderately increases the d-band center energy level and significantly lowers the free energy barrier for the conversion of *O to *OOH, thereby improving the intrinsic activity. On the other hand, the stability of B-IrO2 can be synchronously promoted, primarily attributed to the B-induced strengthening of the Ir bonds, which help resist electrochemical dissolution. More importantly, when the B-IrO2 catalysts are applied to the membrane electrode assembly for PEM water electrolysis (PEMWE), they generate a remarkable current density of up to 2.8 A cm-2 and maintain operation for at least 160 h at a current density of 1.0 A cm-2. This work provides new insights into promoting intrinsic activity and stability while minimizing the usage of noble-metal-based OER electrocatalysts for critical energy conversion and storage.
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Affiliation(s)
- Fei Hu
- School of Materials Science and Hydrogen Energy, Foshan University, Foshan, 528000, P.R. China.
| | - Peiyu Huang
- School of Materials Science and Hydrogen Energy, Foshan University, Foshan, 528000, P.R. China.
| | - Xu Feng
- School of Materials Science and Hydrogen Energy, Foshan University, Foshan, 528000, P.R. China.
| | - Changjian Zhou
- School of Materials Science and Hydrogen Energy, Foshan University, Foshan, 528000, P.R. China.
| | - Xinjuan Zeng
- School of Materials Science and Hydrogen Energy, Foshan University, Foshan, 528000, P.R. China.
| | - Congcong Liu
- Flexible Electronics Innovation Institute (FEII), Jiangxi Science and Technology Normal University, Nanchang 330013, P.R. China
| | - Guangjin Wang
- School of Materials Science and Hydrogen Energy, Foshan University, Foshan, 528000, P.R. China.
| | - Xiaowei Yang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, P.R. China.
| | - Huawen Hu
- School of Materials Science and Hydrogen Energy, Foshan University, Foshan, 528000, P.R. China.
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2
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Su C, Wang D, Wang W, Mitsuzaki N, Chen Z. Facile synthesis of CeO 2-decorated W@Co-MOF heterostructures as a highly active and durable electrocatalyst for overall water splitting. Phys Chem Chem Phys 2024; 26:18953-18961. [PMID: 38952230 DOI: 10.1039/d4cp01350f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/03/2024]
Abstract
Rational coupling of hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) catalysts is extremely important for practical overall water splitting; however, it is still challenging to construct such bifunctional heterostructures. Herein, a CeO2/W@Co-MOF/NF bifunctional electrocatalyst was prepared via a two-step in situ growth method involving an electrodeposition process. The incorporation of the W element enhanced the electronic interaction and enlarged the electrochemical surface area. After the electrodeposition of CeO2, the obtained CeO2/W@Co-MOF/NF possessed abundant heterointerfaces with a modulated local distribution, which promoted water dissociation and rapid electrocatalytic kinetics. In particular, it required very low overpotentials of 239 mV and 87 mV to reach a current density of 10 mA cm-2 in OER and HER, respectively. A corresponding alkaline electrolysis cell afforded a cell voltage of 1.54 V at 10 mA cm-2 to boost overall water splitting. This work provides a feasible strategy to fabricate MOF-based complexes and explores their possible use as bifunctional catalysts toward overall water splitting.
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Affiliation(s)
- Chang Su
- School of Materials Science and Engineering, Changzhou University, Changzhou, 213164, Jiangsu, China.
| | - Dan Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Wenchang Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
- Analysis and Testing Center, NERC Biomass of Changzhou University, Changzhou, Jiangsu, 213032, China
| | | | - Zhidong Chen
- School of Materials Science and Engineering, Changzhou University, Changzhou, 213164, Jiangsu, China.
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
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3
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Guo W, Li J, Chai D, Guo D, Sui G, Li Y, Luo D, Tan L. Iron Active Center Coordination Reconstruction in Iron Carbide Modified on Porous Carbon for Superior Overall Water Splitting. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2401455. [PMID: 38659236 PMCID: PMC11220683 DOI: 10.1002/advs.202401455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 03/11/2024] [Indexed: 04/26/2024]
Abstract
In this work, a novel liquid nitrogen quenching strategy is engineered to fulfill iron active center coordination reconstruction within iron carbide (Fe3C) modified on biomass-derived nitrogen-doped porous carbon (NC) for initiating rapid hydrogen and oxygen evolution, where the chrysanthemum tea (elm seeds, corn leaves, and shaddock peel, etc.) is treated as biomass carbon source within Fe3C and NC. Moreover, the original thermodynamic stability is changed through the corresponding force generated by liquid nitrogen quenching and the phase transformation is induced with rich carbon vacancies with the increasing instantaneous temperature drop amplitude. Noteworthy, the optimizing intermediate absorption/desorption is achieved by new phases, Fe coordination, and carbon vacancies. The Fe3C/NC-550 (550 refers to quenching temperature) demonstrates outstanding overpotential for hydrogen evolution reaction (26.3 mV at -10 mA cm-2) and oxygen evolution reaction (281.4 mV at 10 mA cm-2), favorable overall water splitting activity (1.57 V at 10 mA cm-2). Density functional theory (DFT) calculations further confirm that liquid nitrogen quenching treatment can enhance the intrinsic electrocatalytic activity efficiently by optimizing the adsorption free energy of reaction intermediates. Overall, the above results authenticate that liquid nitrogen quenching strategy open up new possibilities for obtaining highly active electrocatalysts for the new generation of green energy conversion systems.
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Affiliation(s)
- Wenxin Guo
- College of Chemistry and Chemical EngineeringKey Laboratory of Fine Chemicals of College of Heilongjiang ProvinceQiqihar UniversityQiqihar161006China
| | - Jinlong Li
- College of Chemistry and Chemical EngineeringKey Laboratory of Fine Chemicals of College of Heilongjiang ProvinceQiqihar UniversityQiqihar161006China
| | - Dong‐Feng Chai
- College of Chemistry and Chemical EngineeringKey Laboratory of Fine Chemicals of College of Heilongjiang ProvinceQiqihar UniversityQiqihar161006China
| | - Dongxuan Guo
- College of Chemistry and Chemical EngineeringKey Laboratory of Fine Chemicals of College of Heilongjiang ProvinceQiqihar UniversityQiqihar161006China
| | - Guozhe Sui
- College of Chemistry and Chemical EngineeringKey Laboratory of Fine Chemicals of College of Heilongjiang ProvinceQiqihar UniversityQiqihar161006China
| | - Yue Li
- School of Polymer Science & EngineeringQingdao University of Science & TechnologyQingdao266000China
| | - Dan Luo
- Department of Chemical EngineeringUniversity of WaterlooWaterlooONN2L 3G1Canada
| | - Lichao Tan
- Institute of Carbon NeutralityZhejiang Wanli UniversityNingbo315100China
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4
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Arefi-Oskoui S, Khataee A, Marzi Khosrowshahi E, Kudaibergenov N. Application of cobalt-cerium-iron ternary layered double hydroxide for extraction of perfluorooctane sulfonate followed by HPLC-MS/MS analysis. ENVIRONMENTAL RESEARCH 2024; 252:118838. [PMID: 38570124 DOI: 10.1016/j.envres.2024.118838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 03/27/2024] [Accepted: 03/29/2024] [Indexed: 04/05/2024]
Abstract
Herein, Ce-doped CoFe layered double hydroxide (LDH), noted as CoCeFe ternary LDH, was prepared using the co-precipitation route. Prosperous synthesis of CoFe LDH and successful partial replacement of iron cations with cerium cations in CoCeFe ternary LDH were confirmed by X-ray diffraction patterns, energy-dispersive X-ray spectroscopy, and elemental dot-mapping images. Nanosheet morphology was recognized for both CoFe LDH and CoCeFe ternary LDH from scanning electron microscopy and transmission electron microscopy micrographs. In the following, a dispersive solid phase extraction (DSPE) method was developed using the synthesized CoCeFe ternary LDH as a sorbent for extracting perfluorooctanesulfonic acid (PFOS) from wastewater samples. For the selective analysis of PFOS, high-performance liquid chromatography-tandem mass spectroscopy (HPLC-MS/MS) in multiple reaction monitoring mode was used. Analytical parameters such as the limit of detection equal to 0.02 μg/L, with a linear range of 0.05-300 μg/L, the limit of quantification equal to 0.05 μg/L, and an enrichment factor equal to 23.3 were achieved for PFOS at the optimized condition (sorbent: 5 mg of CoCeFe ternary LDH, eluent type and volume: 150 μL mobile phase, pH: 3, adsorption time: 3 min, and desorption time: 5 min). The developed strategy for the analysis of PFOS was tested in real wastewater samples, including copper mine and petrochemical wastewater. The amount of analytes in real samples was calculated using the standard addition method, and good relative recovery in the range of 86%-105% was obtained. The main novelty of this research is the application of CoCeFe ternary LDH to extract the PFOS from wastewater using the DSPE method for determination by HPLC-MS/MS.
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Affiliation(s)
- Samira Arefi-Oskoui
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471, Tabriz, Iran
| | - Alireza Khataee
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471, Tabriz, Iran; Department of Chemical Engineering, Istanbul Technical University, 34469 Istanbul, Turkey
| | - Elnaz Marzi Khosrowshahi
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471, Tabriz, Iran
| | - Nurbolat Kudaibergenov
- Department of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, Al-Farabi 71, Almaty, 050038, Kazakhstan
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Fan E, Zhou S, Zhao H, Ran J, Zhang Z, Dong G, Zhang W, Zang Y, Zhao M, Chai DF, Huang X. Engineering hierarchical snowflake-like multi-metal selenide catalysts anchored on Ni foam for high-efficiency and stable overall water splitting. Dalton Trans 2024; 53:10142-10149. [PMID: 38818546 DOI: 10.1039/d4dt01108b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2024]
Abstract
The development of excellent bifunctional electrocatalysts is an effective way to promote the industrial application of electrolytic water. In this work, a free-standing W-doped cobalt selenide (W-CoSe300/NF) electrocatalyst with a snowflake-like structure supported on nickel foam was prepared by a hydrothermal-selenization strategy. Benefiting from the high specific surface area of the 3D snowflake-like structure and the regulation of tungsten doping on the electronic structure of the metal active center, W-CoSe300/NF shows remarkable electrocatalytic water decomposition performance. In 1.0 M KOH, the W-CoSe300/NF electrocatalyst achieved an efficient HER and OER at a current density of 50 mA cm-2 with overpotentials as low as 84 mV and 283 mV, respectively. More importantly, W-CoSe300/NF acts as both the anode and cathode of the electrolytic tank, requiring only a potential of 1.54 V to obtain 10 mA cm-2 and can operate continuously for more than 120 hours at this current density. This study proposes a new way for the design of high efficiency and affordable bifunctional electrocatalysts.
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Affiliation(s)
- Enze Fan
- College of Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China.
| | - Shuangqi Zhou
- College of Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China.
| | - Hanwei Zhao
- College of Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China.
| | - Jianxin Ran
- College of Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China.
| | - Zhuanfang Zhang
- Teaching Experiment Management Equipment Center, Qiqihar University, Qiqihar 161006, PR China.
| | - Guohua Dong
- College of Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China.
| | - Wenzhi Zhang
- College of Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China.
| | - Yu Zang
- College of Materials, Qiqihar University, Qiqihar University, Qiqihar 161006, PR China
| | - Ming Zhao
- College of Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China.
| | - Dong-Feng Chai
- College of Chemical Engineering, Qiqihar University, Qiqihar 161006, PR China.
| | - Xiaoming Huang
- Teaching Experiment Management Equipment Center, Qiqihar University, Qiqihar 161006, PR China.
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6
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Ding L, Li K, Wang W, Xie Z, Yu S, Yu H, Cullen DA, Keane A, Ayers K, Capuano CB, Liu F, Gao PX, Zhang FY. Amorphous Iridium Oxide-Integrated Anode Electrodes with Ultrahigh Material Utilization for Hydrogen Production at Industrial Current Densities. NANO-MICRO LETTERS 2024; 16:203. [PMID: 38789605 PMCID: PMC11126398 DOI: 10.1007/s40820-024-01411-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Accepted: 04/05/2024] [Indexed: 05/26/2024]
Abstract
Herein, ionomer-free amorphous iridium oxide (IrOx) thin electrodes are first developed as highly active anodes for proton exchange membrane electrolyzer cells (PEMECs) via low-cost, environmentally friendly, and easily scalable electrodeposition at room temperature. Combined with a Nafion 117 membrane, the IrOx-integrated electrode with an ultralow loading of 0.075 mg cm-2 delivers a high cell efficiency of about 90%, achieving more than 96% catalyst savings and 42-fold higher catalyst utilization compared to commercial catalyst-coated membrane (2 mg cm-2). Additionally, the IrOx electrode demonstrates superior performance, higher catalyst utilization and significantly simplified fabrication with easy scalability compared with the most previously reported anodes. Notably, the remarkable performance could be mainly due to the amorphous phase property, sufficient Ir3+ content, and rich surface hydroxide groups in catalysts. Overall, due to the high activity, high cell efficiency, an economical, greatly simplified and easily scalable fabrication process, and ultrahigh material utilization, the IrOx electrode shows great potential to be applied in industry and accelerates the commercialization of PEMECs and renewable energy evolution.
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Affiliation(s)
- Lei Ding
- Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee, Knoxville, TN, 37996, USA
| | - Kui Li
- Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee, Knoxville, TN, 37996, USA
| | - Weitian Wang
- Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee, Knoxville, TN, 37996, USA
| | - Zhiqiang Xie
- Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee, Knoxville, TN, 37996, USA
| | - Shule Yu
- Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee, Knoxville, TN, 37996, USA
| | - Haoran Yu
- Oak Ridge National Lab, Center for Nanophase Materials Sciences, Oak Ridge, TN, 37831, USA
| | - David A Cullen
- Oak Ridge National Lab, Center for Nanophase Materials Sciences, Oak Ridge, TN, 37831, USA
| | - Alex Keane
- Nel Hydrogen, Wallingford, CT, 06492, USA
| | | | | | - Fangyuan Liu
- Institute of Materials Science, University of Connecticut, Storrs, CT, 06269, USA
| | - Pu-Xian Gao
- Institute of Materials Science, University of Connecticut, Storrs, CT, 06269, USA
- Department of Materials Science and Engineering, University of Connecticut, Storrs, CT, 06269, USA
| | - Feng-Yuan Zhang
- Department of Mechanical, Aerospace and Biomedical Engineering, University of Tennessee, Knoxville, TN, 37996, USA.
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7
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Lin L, Zhang C, Yin L, Sun Y, Xing D, Liu Y, Wang P, Wang Z, Zheng Z, Cheng H, Dai Y, Huang B. A Conductive 3D Dual-Metal π-d Conjugated Metal-Organic Framework Fe 3(HITP) 2/bpm@Co for Highly Efficient Oxygen Evolution Reaction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309256. [PMID: 38133479 DOI: 10.1002/smll.202309256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/06/2023] [Indexed: 12/23/2023]
Abstract
Although 2D π-d conjugated metal-organic frameworks (MOFs) exhibit high in-plane conductivity, the closely stacked layers result in low specific surface area and difficulty in mass transfer and diffusion. Hence, a conductive 3D MOF Fe3(HITP)2/bpm@Co (HITP = 2,3,6,7,10,11-hexaiminotriphenylene) is reported through inserting bpm (4,4'-bipyrimidine) ligands and Co2+ into the interlayers of 2D MOF Fe3(HITP)2. Compared to 2D Fe3(HITP)2 (37.23 m2 g-1), 3D Fe3(HITP)2/bpm@Co displays a huge improvement in the specific surface area (373.82 m2 g-1). Furthermore, the combined experimental and density functional theory (DFT) theoretical calculations demonstrate the metallic behavior of Fe3(HITP)2/bpm@Co, which will benefit to the electrocatalytic activity of it. Impressively, Fe3(HITP)2/bpm@Co exhibits prominent and stable oxygen evolution reaction (OER) performance (an overpotential of 299 mV vs RHE at a current density of 10 mA cm-2 and a Tafel slope of 37.14 mV dec-1), which is superior to 2D Fe3(HITP)2 and comparable to commercial IrO2. DFT theoretical calculation reveals that the combined action of the Fe and Co sites in Fe3(HITP)2/bpm@Co is responsible for the enhanced electrocatalytic activity. This work provides an alternative approach to develop conductive 3D MOFs as efficient electrocatalysts.
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Affiliation(s)
- Lingtong Lin
- State Key Lab of Crystal Materials, Shandong University, Shandong, 250100, P. R. China
| | - Caiyun Zhang
- State Key Lab of Crystal Materials, Shandong University, Shandong, 250100, P. R. China
| | - Liwen Yin
- State Key Lab of Crystal Materials, Shandong University, Shandong, 250100, P. R. China
| | - Yuewen Sun
- State Key Lab of Crystal Materials, Shandong University, Shandong, 250100, P. R. China
| | - Danning Xing
- Shandong Institute of Advanced Technology, Shandong, 250100, P. R. China
| | - Yuanyuan Liu
- State Key Lab of Crystal Materials, Shandong University, Shandong, 250100, P. R. China
| | - Peng Wang
- State Key Lab of Crystal Materials, Shandong University, Shandong, 250100, P. R. China
| | - Zeyan Wang
- State Key Lab of Crystal Materials, Shandong University, Shandong, 250100, P. R. China
| | - Zhaoke Zheng
- State Key Lab of Crystal Materials, Shandong University, Shandong, 250100, P. R. China
| | - Hefeng Cheng
- State Key Lab of Crystal Materials, Shandong University, Shandong, 250100, P. R. China
| | - Ying Dai
- School of Physics, Shandong University, Shandong, 250100, P. R. China
| | - Baibiao Huang
- State Key Lab of Crystal Materials, Shandong University, Shandong, 250100, P. R. China
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8
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Hosseini M, Shahrabi T, Darband GB, Fathollahi A. Durable Pulse-Electrodeposited Ni-Fe-S Nanosheets Supported on a Ni-S Three Dimensional Pattern as Robust Bifunctional Electrocatalysts for Hydrogen Evolution and Urea Oxidation Reactions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:2028-2038. [PMID: 38232324 DOI: 10.1021/acs.langmuir.3c02417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
This study aims to establish easy-to-fabricate and novel structures for the synthesis of highly active and enduring electrocatalysts for the hydrogen evolution reaction (HER) and urea oxidation reaction (UOR). Gradient electrodeposition and four different time regimes were utilized to synthesize Ni-S 3D patterns with the optimization of electrodeposition time. Pulse electrodeposition was employed for the synthesis of Ni-Fe-S nanosheets at three different frequencies and duty cycles to optimize the pulse electrodeposition parameters. The sample synthesized at 13 min of gradient electrodeposition with a 1 Hz frequency and 0.7 duty cycle for pulse electrodeposition demonstrated the best electrocatalytic performance. The optimized electrode further showed remarkable performance for HER and UOR reactions, requiring only 54 mV and 1.25 V to deliver 10 mA cm-2 for HER and UOR, respectively. Moreover, the overall cell voltage of the two-electrode system in 1 M KOH and 0.5 M urea was measured at 1.313 V, delivering 10 mA cm-2. Constructing Ni-Fe-S nanosheets on 3D Ni-S significantly increased the electrochemical surface area from 51 to 278 for the Ni-S and Ni-Fe-S layers. Tafel slopes were measured as 138 and 182 mV dec-1 for the HER and UOR for the Ni-S coating layer and 97 mV dec-1 for the HER and 131 mV dec-1 for the UOR for the optimal Ni-Fe-S nanosheets on Ni-S. Minimal changes in the potential were observed at 100 mA cm-2 in 50 h regarding the HER and UOR, signifying exceptional electrocatalytic stability. This study provides economically viable, highly active, and long-lasting electrocatalysts suitable for HER and UOR applications.
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Affiliation(s)
- Mohammad Hosseini
- Department of Materials Engineering, Faculty of Engineering, Tarbiat Modares University, P.O. Box: Tehran 14115-143, Iran
| | - Taghi Shahrabi
- Department of Materials Engineering, Faculty of Engineering, Tarbiat Modares University, P.O. Box: Tehran 14115-143, Iran
| | - Ghasem Barati Darband
- Materials and Metallurgical Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad 91775-1111, Iran
| | - Amirreza Fathollahi
- Department of Materials Engineering, Faculty of Engineering, Tarbiat Modares University, P.O. Box: Tehran 14115-143, Iran
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9
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Yu J, Zhu Q, Ma W, Dai Y, Zhang S, Wang F, Zhu H. Hydrophilic Chitosan-Doped Composite Diaphragm Reducing Gas Permeation for Alkaline Water Electrolysis Producing Hydrogen. ACS APPLIED MATERIALS & INTERFACES 2024; 16:1394-1403. [PMID: 38157839 DOI: 10.1021/acsami.3c13426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
The present paper studied the chitosan-doped composite diaphragm by the phase exchange method with the objective of developing a composite diaphragm that complies with the alkaline water electrolysis requirements, as well as tested the electrolytic performance of the diaphragm in alkaline water electrolysis. The structure and morphology are characterized by Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS). The performance of chitosan-doped composite diaphragms was tested; CS3Z12 composite diaphragm with a low area resistance (0.20 Ω cm2), a high bubble point pressure (2.75 bar), and excellent electrochemical performance (current density of 650 mA cm-2 at 1.83 V) shows the best performance. Moreover, the performance of the synthesized composite diaphragm is significantly elevated compared to commercial diaphragms (Zirfon PERL), which is promising for practical application in alkaline electrolytic cells.
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Affiliation(s)
- Jinghua Yu
- State Key Laboratory of Chemical Resource Engineering, Institute of Modern Catalysis, Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Qingqing Zhu
- State Key Laboratory of Chemical Resource Engineering, Institute of Modern Catalysis, Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Wenli Ma
- State Key Laboratory of Chemical Resource Engineering, Institute of Modern Catalysis, Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Yajie Dai
- State Key Laboratory of Chemical Resource Engineering, Institute of Modern Catalysis, Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Shuhuan Zhang
- State Key Laboratory of Chemical Resource Engineering, Institute of Modern Catalysis, Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Fanghui Wang
- State Key Laboratory of Chemical Resource Engineering, Institute of Modern Catalysis, Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Hong Zhu
- State Key Laboratory of Chemical Resource Engineering, Institute of Modern Catalysis, Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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10
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Shi M, Tang T, Xiao L, Han J, Bai X, Sun Y, Ma Y, Guan J. In situ synthesis of rosette-like Co-doped FeNiOOH/NF for seawater oxidation. Chem Commun (Camb) 2023; 59:13607-13610. [PMID: 37901916 DOI: 10.1039/d3cc04527g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
The development of high activity and strong resistance to seawater corrosion oxygen evolution reaction (OER) electrocatalysts for seawater electrolysis has broad application prospects. Herein, we prepare Co-doped FeNiOOH rosette-like nanoflowers on nickel foam (NF) with different Co dosages by one-step solvothermal method. The Co0.2-FeNiOOH/NF exhibits a low overpotential (η10) of 185 mV and Tafel slope of 30 mV dec-1 in 1 M KOH. Moreover, it shows a low η10 of 244 mV in alkaline seawater electrolyte. The remarkable OER performance of Co0.2-FeNiOOH/NF is ascribed to the fact that the introduction of Co regulates the morphology and electron structure of the material, which provides abundant active sites for the reaction and promotes charge transfer. In situ Raman results demonstrate that NiOOH and γ-FeOOH are the key active species for the OER. This study provides a feasible basis for seawater electrolysis over transition metal (oxy)hydroxides.
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Affiliation(s)
- Mingyuan Shi
- College of Chemistry and Chemical Engineering, Qiqihar University, Heilongjiang Province 161006, China.
- Institute of Physical Chemistry, College of Chemistry, Jilin University, Changchun 130021, P. R. China.
| | - Tianmi Tang
- Institute of Physical Chemistry, College of Chemistry, Jilin University, Changchun 130021, P. R. China.
| | - Liyuan Xiao
- Institute of Physical Chemistry, College of Chemistry, Jilin University, Changchun 130021, P. R. China.
| | - Jingyi Han
- Institute of Physical Chemistry, College of Chemistry, Jilin University, Changchun 130021, P. R. China.
| | - Xue Bai
- Institute of Physical Chemistry, College of Chemistry, Jilin University, Changchun 130021, P. R. China.
| | - Yuhang Sun
- College of Chemistry and Chemical Engineering, Qiqihar University, Heilongjiang Province 161006, China.
- Institute of Physical Chemistry, College of Chemistry, Jilin University, Changchun 130021, P. R. China.
| | - Yuanyuan Ma
- College of Chemistry and Chemical Engineering, Qiqihar University, Heilongjiang Province 161006, China.
| | - Jingqi Guan
- Institute of Physical Chemistry, College of Chemistry, Jilin University, Changchun 130021, P. R. China.
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11
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Li B, Zhao J, Wu Y, Zhang G, Wu H, Lyu F, He J, Fan J, Lu J, Li YY. Identifying Fe as OER Active Sites and Ultralow-Cost Bifunctional Electrocatalysts for Overall Water Splitting. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2301715. [PMID: 37144443 DOI: 10.1002/smll.202301715] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 04/11/2023] [Indexed: 05/06/2023]
Abstract
Electrocatalysts based on Fe and other transition metals are regarded as most promising candidates for accelerating the oxygen evolution reaction (OER), whereas whether Fe is the catalytic active site for OER is still under debate. Here, unary Fe- and binary FeNi- based catalysts, FeOOH and FeNi(OH)x , are produced by self-reconstruction. The former is a dual-phased FeOOH, possessing abundant oxygen vacancies (VO ) and mixed-valence states, delivering the highest OER performance among all the unary iron oxides- and hydroxides- based powder catalysts reported to date, supporting Fe can be catalytically active for OER. As to binary catalyst, FeNi(OH)x is fabricated featuring 1) an equal molar content of Fe and Ni and 2) rich VO , both of which are found essential to enable abundant stabilized reactive centers (FeOOHNi) for high OER performance. Fe is found to be oxidized to 3.5+ during the *OOH process, thus, Fe is identified to be the active site in this new layered double hydroxide (LDH) structure with Fe:Ni = 1:1. Furthermore, the maximized catalytic centers enable FeNi(OH)x @NF (nickel foam) as low-cost bifunctional electrodes for overall water-splitting, delivering excellent performance comparable to commercial electrodes based on precious metals, which overcomes a major obstacle to the commercialization of bifunctional electrodes: prohibitive cost.
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Affiliation(s)
- Bo Li
- Hong Kong Branch of National Precious Metals Material Engineering Research Centre, City University of Hong Kong, Hong Kong, 999077, China
- Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Hong Kong, 999077, China
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, 999077, China
- Department of Mechanical Engineering, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, City University of Hong Kong, Hong Kong, 999077, China
| | - Jun Zhao
- Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Hong Kong, 999077, China
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, 999077, China
| | - Yishang Wu
- Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China
| | - Guobin Zhang
- Hong Kong Branch of National Precious Metals Material Engineering Research Centre, City University of Hong Kong, Hong Kong, 999077, China
- Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Hong Kong, 999077, China
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, 999077, China
- Department of Mechanical Engineering, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, City University of Hong Kong, Hong Kong, 999077, China
| | - Haikun Wu
- Department of Chemistry, City University of Hong Kong, Hong Kong, 999077, China
| | - Fucong Lyu
- Hong Kong Branch of National Precious Metals Material Engineering Research Centre, City University of Hong Kong, Hong Kong, 999077, China
- Department of Mechanical Engineering, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, City University of Hong Kong, Hong Kong, 999077, China
- Centre for Advanced Structural Materials, City University of Hong Kong Shenzhen Research Institute, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, 8 Yuexing 1st Road, Shenzhen Hi-Tech Industrial Park, Nanshan District, Shenzhen, 518057, China
| | - Jun He
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, China
| | - Jun Fan
- Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Hong Kong, 999077, China
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, 999077, China
| | - Jian Lu
- Hong Kong Branch of National Precious Metals Material Engineering Research Centre, City University of Hong Kong, Hong Kong, 999077, China
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, 999077, China
- Department of Mechanical Engineering, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, City University of Hong Kong, Hong Kong, 999077, China
- Centre for Advanced Structural Materials, City University of Hong Kong Shenzhen Research Institute, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, 8 Yuexing 1st Road, Shenzhen Hi-Tech Industrial Park, Nanshan District, Shenzhen, 518057, China
| | - Yang Yang Li
- Hong Kong Branch of National Precious Metals Material Engineering Research Centre, City University of Hong Kong, Hong Kong, 999077, China
- Center of Super-Diamond and Advanced Films (COSDAF), City University of Hong Kong, Hong Kong, 999077, China
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, 999077, China
- Department of Mechanical Engineering, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, City University of Hong Kong, Hong Kong, 999077, China
- Centre for Advanced Structural Materials, City University of Hong Kong Shenzhen Research Institute, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, 8 Yuexing 1st Road, Shenzhen Hi-Tech Industrial Park, Nanshan District, Shenzhen, 518057, China
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12
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Ding L, Xie Z, Yu S, Wang W, Terekhov AY, Canfield BK, Capuano CB, Keane A, Ayers K, Cullen DA, Zhang FY. Electrochemically Grown Ultrathin Platinum Nanosheet Electrodes with Ultralow Loadings for Energy-Saving and Industrial-Level Hydrogen Evolution. NANO-MICRO LETTERS 2023; 15:144. [PMID: 37269447 PMCID: PMC10239421 DOI: 10.1007/s40820-023-01117-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 04/26/2023] [Indexed: 06/05/2023]
Abstract
Nanostructured catalyst-integrated electrodes with remarkably reduced catalyst loadings, high catalyst utilization and facile fabrication are urgently needed to enable cost-effective, green hydrogen production via proton exchange membrane electrolyzer cells (PEMECs). Herein, benefitting from a thin seeding layer, bottom-up grown ultrathin Pt nanosheets (Pt-NSs) were first deposited on thin Ti substrates for PEMECs via a fast, template- and surfactant-free electrochemical growth process at room temperature, showing highly uniform Pt surface coverage with ultralow loadings and vertically well-aligned nanosheet morphologies. Combined with an anode-only Nafion 117 catalyst-coated membrane (CCM), the Pt-NS electrode with an ultralow loading of 0.015 mgPt cm-2 demonstrates superior cell performance to the commercial CCM (3.0 mgPt cm-2), achieving 99.5% catalyst savings and more than 237-fold higher catalyst utilization. The remarkable performance with high catalyst utilization is mainly due to the vertically well-aligned ultrathin nanosheets with good surface coverage exposing abundant active sites for the electrochemical reaction. Overall, this study not only paves a new way for optimizing the catalyst uniformity and surface coverage with ultralow loadings but also provides new insights into nanostructured electrode design and facile fabrication for highly efficient and low-cost PEMECs and other energy storage/conversion devices.
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Affiliation(s)
- Lei Ding
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute (University of Tennessee-Knoxville), Tullahoma, TN, 37388, USA
| | - Zhiqiang Xie
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute (University of Tennessee-Knoxville), Tullahoma, TN, 37388, USA
| | - Shule Yu
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute (University of Tennessee-Knoxville), Tullahoma, TN, 37388, USA
| | - Weitian Wang
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute (University of Tennessee-Knoxville), Tullahoma, TN, 37388, USA
| | - Alexander Y Terekhov
- Center for Laser Applications, UT Space Institute (University of Tennessee-Knoxville), Tullahoma, TN, 37388, USA
| | - Brian K Canfield
- Center for Laser Applications, UT Space Institute (University of Tennessee-Knoxville), Tullahoma, TN, 37388, USA
| | | | - Alex Keane
- Nel Hydrogen, Wallingford, CT, 06492, USA
| | | | - David A Cullen
- Oak Ridge National Laboratory, Center for Nanophase Materials Sciences, Oak Ridge, TN, 37831, USA
| | - Feng-Yuan Zhang
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute (University of Tennessee-Knoxville), Tullahoma, TN, 37388, USA.
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13
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Ding L, Wang W, Xie Z, Li K, Yu S, Capuano CB, Keane A, Ayers K, Zhang FY. Highly Porous Iridium Thin Electrodes with Low Loading and Improved Reaction Kinetics for Hydrogen Generation in PEM Electrolyzer Cells. ACS APPLIED MATERIALS & INTERFACES 2023; 15:24284-24295. [PMID: 37167124 DOI: 10.1021/acsami.2c23304] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Highly efficient electrodes with simplified fabrication and low cost are highly desired for the commercialization of proton exchange membrane electrolyzer cells (PEMECs). Herein, highly porous Ir-coated thin/tunable liquid/gas diffusion layers with honeycomb-structured catalyst layers were fabricated as anode electrodes for PEMECs via integrating a facile and fast electroplating process with efficient template removal. Combined with a Nafion 117 membrane, a low cell voltage of 1.842 V at 2000 mA/cm2 and a high mass activity of 4.16 A/mgIr at 1.7 V were achieved with a low Ir loading of 0.27 mg/cm2, outperforming most of the recently reported anode catalysts. Moreover, the thin electrode shows outstanding stability at a high current density of 1800 mA/cm2 in the practical PEMEC. Moreover, with in-situ high-speed visualizations in PEMECs, the catalyst layer structure's impact on real-time electrochemical reactions and mass transport phenomena was investigated for the first time. Increased active sites and improved multiphase transport properties with favorable bubble detachment and water diffusion for the honeycomb-structured electrode are revealed. Overall, the significantly simplified ionomer-free honeycomb thin electrode with low catalyst loading and remarkable performance could efficiently accelerate the industrial application of PEMECs.
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Affiliation(s)
- Lei Ding
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville, Tullahoma, Tennessee 37388, United States
| | - Weitian Wang
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville, Tullahoma, Tennessee 37388, United States
| | - Zhiqiang Xie
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville, Tullahoma, Tennessee 37388, United States
| | - Kui Li
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville, Tullahoma, Tennessee 37388, United States
| | - Shule Yu
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville, Tullahoma, Tennessee 37388, United States
| | | | - Alex Keane
- Nel Hydrogen, Wallingford, Connecticut 06492, United States
| | - Kathy Ayers
- Nel Hydrogen, Wallingford, Connecticut 06492, United States
| | - Feng-Yuan Zhang
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville, Tullahoma, Tennessee 37388, United States
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14
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Li K, Ding L, Xie Z, Yang G, Yu S, Wang W, Cullen DA, Meyer HM, Hu G, Ganesh P, Watkins TR, Zhang FY. Robust Copper-Based Nanosponge Architecture Decorated by Ruthenium with Enhanced Electrocatalytic Performance for Ambient Nitrogen Reduction to Ammonia. ACS APPLIED MATERIALS & INTERFACES 2023; 15:11703-11712. [PMID: 36812428 DOI: 10.1021/acsami.2c20809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Electrochemical conversion of nitrogen to green ammonia is an attractive alternative to the Haber-Bosch process. However, it is currently bottlenecked by the lack of highly efficient electrocatalysts to drive the sluggish nitrogen reduction reaction (N2RR). Herein, we strategically design a cost-effective bimetallic Ru-Cu mixture catalyst in a nanosponge (NS) architecture via a rapid and facile method. The porous NS mixture catalysts exhibit a large electrochemical active surface area and enhanced specific activity arising from the charge redistribution for improved activation and adsorption of the activated nitrogen species. Benefiting from the synergistic effect of the Cu constituent on morphology decoration and thermodynamic suppression of the competing hydrogen evolution reaction, the optimized Ru0.15Cu0.85 NS catalyst presents an impressive N2RR performance with an ammonia yield rate of 26.25 μg h-1 mgcat.-1 (corresponding to 10.5 μg h-1 cm-2) and Faradic efficiency of 4.39% as well as superior stability in alkaline medium, which was superior to that of monometallic Ru and Cu nanostructures. Additionally, this work develops a new bimetallic combination of Ru and Cu, which promotes the strategy to design efficient electrocatalysts for electrochemical ammonia production under ambient conditions.
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Affiliation(s)
- Kui Li
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville, Tullahoma, Tennessee 37388, United States
| | - Lei Ding
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville, Tullahoma, Tennessee 37388, United States
| | - Zhiqiang Xie
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville, Tullahoma, Tennessee 37388, United States
| | - Gaoqiang Yang
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville, Tullahoma, Tennessee 37388, United States
| | - Shule Yu
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville, Tullahoma, Tennessee 37388, United States
| | - Weitian Wang
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville, Tullahoma, Tennessee 37388, United States
| | - David A Cullen
- Center for Nanophase Materials Science, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Harry M Meyer
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Guoxiang Hu
- Center for Nanophase Materials Science, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Panchapakesan Ganesh
- Center for Nanophase Materials Science, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Thomas R Watkins
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Feng-Yuan Zhang
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville, Tullahoma, Tennessee 37388, United States
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15
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1T-MoS2/Co3S4/Ni3S2 nanoarrays with abundant interfaces and defects for overall water splitting. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.130930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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16
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Singh TI, Maibam A, Cha DC, Yoo S, Babarao R, Lee SU, Lee S. High-Alkaline Water-Splitting Activity of Mesoporous 3D Heterostructures: An Amorphous-Shell@Crystalline-Core Nano-Assembly of Co-Ni-Phosphate Ultrathin-Nanosheets and V- Doped Cobalt-Nitride Nanowires. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2201311. [PMID: 35666047 PMCID: PMC9376825 DOI: 10.1002/advs.202201311] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 05/04/2022] [Indexed: 05/27/2023]
Abstract
Introducing amorphous and ultrathin nanosheets of transition bimetal phosphate arrays that are highly active in the oxygen evolution reaction (OER) as shells over an electronically modulated crystalline core with low hydrogen absorption energy for an excellent hydrogen evolution reaction (HER) can boost the sluggish kinetics of the OER and HER in alkaline electrolytes. Therefore, in this study, ultrathin and amorphous cobalt-nickel-phosphate (CoNiPOx ) nanosheet arrays are deposited over vanadium (V)-doped cobalt-nitride (V3% -Co4 N) crystalline core nanowires to obtain amorphous-shell@crystalline-core mesoporous 3D-heterostructures (CoNiPOx @V-Co4 N/NF) as bifunctional electrocatalysts. The optimized electrocatalyst shows extremely low HER and OER overpotentials of 53 and 270 mV at 10 mA cm-2 , respectively. The CoNiPOx @V3% -Co4 N/NF (+/-) electrolyzer utilizing the electrocatalyst as both anode and cathode demonstrates remarkable overall water-splitting activity, requiring a cell potential of only 1.52 V at 10 mA cm-2 , 30 mV lower than that of the RuO2 /NF (+)/20%-Pt/C/NF (-) electrolyzer. Such impressive bifunctional activities can be attributed to abundant active sites, adjusted electronic structure, lower charge-transfer resistance, enhanced electrochemically active surface area (ECSA), and surface- and volume-confined electrocatalysis resulting from the synergistic effects of the crystalline V3% -Co4 N core and amorphous CoNiPOx shells boosting water splitting in alkaline media.
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Affiliation(s)
- Thangjam Ibomcha Singh
- Department of Chemical and Molecular EngineeringHanyang University ERICAAnsan15588Republic of Korea
- Center for Bionano Intelligence Education and ResearchHanyang University ERICAAnsan15588Republic of Korea
| | - Ashakiran Maibam
- School of ScienceRMIT UniversityMelbourneVictoria3001Australia
- Physical and Materials DivisionCSIR‐National Chemical LaboratoryPune411 008India
- Academy of Scientific and Innovative ResearchCSIR‐Human Resource Development Centre (CSIR‐HRDC) CampusPostal Staff College AreaGhaziabadUttar Pradesh201002India
| | - Dun Chan Cha
- Center for Bionano Intelligence Education and ResearchHanyang University ERICAAnsan15588Republic of Korea
- Department of Applied ChemistryHanyang University ERICAAnsan15588Republic of Korea
| | - Sunghoon Yoo
- Department of Chemical and Molecular EngineeringHanyang University ERICAAnsan15588Republic of Korea
- Department of Applied ChemistryHanyang University ERICAAnsan15588Republic of Korea
| | - Ravichandar Babarao
- School of ScienceRMIT UniversityMelbourneVictoria3001Australia
- ManufacturingCSIRONormanby RoadVictoriaClayton3168Australia
| | - Sang Uck Lee
- Department of Chemical and Molecular EngineeringHanyang University ERICAAnsan15588Republic of Korea
- Center for Bionano Intelligence Education and ResearchHanyang University ERICAAnsan15588Republic of Korea
- Department of Applied ChemistryHanyang University ERICAAnsan15588Republic of Korea
| | - Seunghyun Lee
- Department of Chemical and Molecular EngineeringHanyang University ERICAAnsan15588Republic of Korea
- Center for Bionano Intelligence Education and ResearchHanyang University ERICAAnsan15588Republic of Korea
- Department of Applied ChemistryHanyang University ERICAAnsan15588Republic of Korea
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17
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Song Y, Wang H, Song Z, Zheng X, Fan B, Han X, Deng Y, Hu W. Ni-Doped Mo 2C Anchored on Graphitized Porous Carbon for Boosting Electrocatalytic N 2 Reduction. ACS APPLIED MATERIALS & INTERFACES 2022; 14:17273-17281. [PMID: 35388700 DOI: 10.1021/acsami.2c00280] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Facilitating the efficient activation of N2 molecules and inhibiting the competing hydrogen evolution reaction remain a challenge in the nitrogen reduction reaction (NRR). A heteroatom doping strategy is an effective way to optimize the energy barrier during the NRR process to improve the catalytic efficiency. Herein, we report Ni-doped Mo2C anchored on graphitized porous conductive carbon for regulating the electronic structure and catalytic properties of electrocatalysts toward NRR. Benefiting from the porous structure and graphitization features of the carbon matrix, more active sites and high electronic conductivity were achieved. Meanwhile, with the doping of Ni atoms, the electronic configuration near the Ni-Mo active sites was optimized and the adsorption of N2 on them was also promoted due to the increased electron transfer. Moreover, the lowered energy barrier of the NRR process and the suppressed hydrogen adsorption on the active site all resulted in the high catalytic activity and selectivity of the catalyst. Therefore, a high NH3 yield rate of 46.49 μg h-1 mg-1 and a faradic efficiency of 29.05% were achieved. This work not only validates the important role of heteroatom doping on the regulation of NRR catalytic activity but also provides a promising avenue for the green synthesis of NH3.
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Affiliation(s)
- Yue Song
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), Tianjin University, Tianjin 300072, China
| | - Haozhi Wang
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), Tianjin University, Tianjin 300072, China
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City, Fuzhou 350207, China
| | - Zhenxin Song
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), Tianjin University, Tianjin 300072, China
| | - Xuerong Zheng
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), Tianjin University, Tianjin 300072, China
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou 570228, P. R. China
| | - Binbin Fan
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), Tianjin University, Tianjin 300072, China
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City, Fuzhou 350207, China
| | - Xiaopeng Han
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), Tianjin University, Tianjin 300072, China
| | - Yida Deng
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), Tianjin University, Tianjin 300072, China
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou 570228, P. R. China
| | - Wenbin Hu
- School of Materials Science and Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Key Laboratory of Advanced Ceramics and Machining Technology (Ministry of Education), Tianjin University, Tianjin 300072, China
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City, Fuzhou 350207, China
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19
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Yang M, Zhao M, Yuan J, Luo J, Zhang J, Lu Z, Chen D, Fu X, Wang L, Liu C. Oxygen Vacancies and Interface Engineering on Amorphous/Crystalline CrO x -Ni 3 N Heterostructures toward High-Durability and Kinetically Accelerated Water Splitting. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2106554. [PMID: 35150071 DOI: 10.1002/smll.202106554] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 12/30/2021] [Indexed: 06/14/2023]
Abstract
Manipulating catalytic active sites and reaction kinetics in alkaline media is crucial for rationally designing mighty water-splitting electrocatalysts with high efficiency. Herein, the coupling between oxygen vacancies and interface engineering is highlighted to fabricate a novel amorphous/crystalline CrOx -Ni3 N heterostructure grown on Ni foam for accelerating the alkaline hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Density functional theory (DFT) calculations reveal that the electron transfer from amorphous CrOx to Ni3 N at the interfaces, and the optimized Gibbs free energies of H2 O dissociation (ΔGH-OH ) and H adsorption (ΔGH ) in the amorphous/crystalline CrOx -Ni3 N heterostructure are conducive to the superior and stable HER activity. Experimental data confirm that numerous oxygen vacancies and amorphous/crystalline interfaces in the CrOx -Ni3 N catalysts are favorable for abundant accessible active sites and enhanced intrinsic activity, resulting in excellent catalytic performances for HER and OER. Additionally, the in situ reconstruction of CrOx -Ni3 N into highly active Ni3 N/Ni(OH)2 is responsible for the optimized OER performance in a long-term stability test. Eventually, an alkaline electrolyzer using CrOx -Ni3 N as both cathode and anode has a low cell voltage of 1.53 V at 10 mA cm-2 , together with extraordinary durability for 500 h, revealing its potential in industrial applications.
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Affiliation(s)
- Mingyang Yang
- Shenzhen University, Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen, 518060, China
- Shenzhen University, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen, 518060, China
| | - Mengxuan Zhao
- Shenzhen University, Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen, 518060, China
| | - Ji Yuan
- Shenzhen University, Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen, 518060, China
| | - Junxuan Luo
- Shenzhen University, Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen, 518060, China
| | - Junjun Zhang
- Southern University of Science and Technology, Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Department of Materials Science and Engineering, Shenzhen, 518055, China
| | - Zhouguang Lu
- Southern University of Science and Technology, Guangdong Provincial Key Laboratory of Energy Materials for Electric Power, Department of Materials Science and Engineering, Shenzhen, 518055, China
| | - Dazhu Chen
- Shenzhen University, Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen, 518060, China
| | - Xianzhu Fu
- Shenzhen University, Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen, 518060, China
| | - Lei Wang
- Shenzhen University, Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen, 518060, China
| | - Chen Liu
- Shenzhen University, Guangdong Research Center for Interfacial Engineering of Functional Materials, Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen, 518060, China
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Fitriana HN, Lee S, Kim HS, Lee J, Lee Y, Lee JS, Park H, Ko CH, Lim SY, Lee SY. Enhanced CO 2 electroconversion of Rhodobacter sphaeroides by cobalt-phosphate complex assisted water oxidation. Bioelectrochemistry 2022; 145:108102. [PMID: 35338862 DOI: 10.1016/j.bioelechem.2022.108102] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 03/10/2022] [Accepted: 03/18/2022] [Indexed: 01/02/2023]
Abstract
CO2 can be a next generation feedstock for electricity-driven bioproduction due to its abundance and availability. Microbial electrosynthesis (MES), a promising technique for CO2 electroconversion, provides an attractive route for the production of valuable products from CO2, but issues surrounding efficiency and reasonable productivity should be resolved. Improving the anode performance for water oxidation under neutral pH is one of the most important aspects to advance current MES. Here, we introduce cobalt-phosphate (Co-Pi) assisted water oxidation at the counter electrode (i.e., anode) to upgrade the MES performance at pH 7.0. We show that CO2 can be converted by photochemoautotrophic bacterium, Rhodobacter sphaeroides into organic acids and carotenoids in the MES reactor. Planktonic cells of R. sphareroides in the Co-Pi anode equipped MES reactor was ca. 1.5-fold higher than in the control condition (w/o Co-Pi). The faradaic efficiency of the Co-Pi anode equipped MES reactor was remarkably higher (58.3%) than that of the bare anode (27.8%). While the system can improve the CO2 electroconversion nonetheless there are some further optimizations are necessary.
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Affiliation(s)
- Hana Nur Fitriana
- Gwangju Bio/Energy R&D Center, Korea Institute of Energy Research, 61003 Gwangju, South Korea
| | - Sangmin Lee
- Gwangju Bio/Energy R&D Center, Korea Institute of Energy Research, 61003 Gwangju, South Korea
| | - Hui Su Kim
- Department of Advanced Chemicals & Engineering, Chonnam National University, 61186 Gwangju, South Korea
| | - Jiye Lee
- Gwangju Bio/Energy R&D Center, Korea Institute of Energy Research, 61003 Gwangju, South Korea
| | - Yurim Lee
- Interdisciplinary Program of Agriculture and Life Science, Chonnam National University, 61186 Gwangju, South Korea
| | - Jin-Suk Lee
- Gwangju Bio/Energy R&D Center, Korea Institute of Energy Research, 61003 Gwangju, South Korea
| | - Hyojung Park
- Gwangju Bio/Energy R&D Center, Korea Institute of Energy Research, 61003 Gwangju, South Korea; Bioremediation Team, National Institute of Agricultural Sciences, 55365 Jeollabuk-do, South Korea
| | - Chang Hyun Ko
- Department of Advanced Chemicals & Engineering, Chonnam National University, 61186 Gwangju, South Korea; School of Chemical Engineering, Chonnam National University, 61186 Gwangju, South Korea
| | - Sung Yul Lim
- Department of Chemistry, Kyung Hee University, 02447 Seoul, South Korea
| | - Soo Youn Lee
- Gwangju Bio/Energy R&D Center, Korea Institute of Energy Research, 61003 Gwangju, South Korea.
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21
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Boosting the Electrocatalytic Activity of Nickel-Iron Layered Double Hydroxide for the Oxygen Evolution Reaction byTerephthalic Acid. Catalysts 2022. [DOI: 10.3390/catal12030258] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The development of a new type of oxygen evolution reaction (OER) catalyst to reduce the energy loss in the process of water electrolysis is of great significance to the realization of the industrialization of hydrogen energy storage. Herein, we report the catalysts of NiFe double-layer hydroxide (NiFe-LDH) mixed with different equivalent terephthalic acid (TPA), synthesized by the hydrothermal method. The catalyst synthesized with the use of the precursor solution containing one equivalent of TPA shows the best performance with the current density of 2 mA cm−2 at an overpotential of 270 mV, the Tafel slope of 40 mV dec−1, and excellent stable electrocatalytic performance for OER. These catalysts were characterized in a variety of methods. X-ray diffraction (XRD), Fourier Transform Infrared Spectrometer (FTIR), and Raman spectrum proved the presence of TPA in the catalysts. The lamellar structure and the uniform distribution of Ni and Fe in the catalysts were observed by a scanning electron microscope (SEM) and a transmission electron microscope (TEM). In X-ray photoelectron spectroscopy (XPS) of NiFe-LDH with and without TPA, the changes in the peak positions of Ni and Fe spectra indicate strong electronic interactions between TPA and Ni and Fe atoms. These results suggest that a certain amount of TPA can boost catalytic activity.
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22
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Wang W, Li K, Ding L, Yu S, Xie Z, Cullen DA, Yu H, Bender G, Kang Z, Wrubel JA, Ma Z, Capuano CB, Keane A, Ayers K, Zhang FY. Exploring the Impacts of Conditioning on Proton Exchange Membrane Electrolyzers by In Situ Visualization and Electrochemistry Characterization. ACS APPLIED MATERIALS & INTERFACES 2022; 14:9002-9012. [PMID: 35142208 DOI: 10.1021/acsami.1c21849] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
For a proton exchange membrane electrolyzer cell (PEMEC), conditioning is an essential process to enhance its performance, reproducibility, and economic efficiency. To get more insights into conditioning, a PEMEC with Ir-coated gas diffusion electrode (IrGDE) was investigated by electrochemistry and in situ visualization characterization techniques. The changes of polarization curves, electrochemical impedance spectra (EIS), and bubble dynamics before and after conditioning are analyzed. The polarization curves show that the cell efficiency increased by 9.15% at 0.4 A/cm2, and the EIS and Tafel slope results indicate that both the ohmic and activation overpotential losses decrease after conditioning. The visualization of bubble formation unveils that the number of bubble sites increased greatly from 14 to 29 per pore after conditioning, at the same voltage of 1.6 V. Under the same current density of 0.2 A/cm2; the average bubble detachment size decreased obviously from 35 to 25 μm. The electrochemistry and visualization characterization results jointly unveiled the increase of reaction sites and the surface oxidation on the IrGDE during conditioning, which provides more insights into the conditioning and benefits for the future GDE design and optimization.
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Affiliation(s)
- Weitian Wang
- Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville, Tullahoma, Tennessee 37388, United States
| | - Kui Li
- Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville, Tullahoma, Tennessee 37388, United States
| | - Lei Ding
- Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville, Tullahoma, Tennessee 37388, United States
| | - Shule Yu
- Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville, Tullahoma, Tennessee 37388, United States
| | - Zhiqiang Xie
- Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville, Tullahoma, Tennessee 37388, United States
| | - David A Cullen
- Center for Nanophase Materials Sciences, Oak Ridge National Lab, Oak Ridge, Tennessee 37831, United States
| | - Haoran Yu
- Center for Nanophase Materials Sciences, Oak Ridge National Lab, Oak Ridge, Tennessee 37831, United States
| | - Guido Bender
- Chemistry & Nanoscience Department, National Renewable Energy Lab, Golden, Colorado 80401, United States
| | - Zhenye Kang
- Chemistry & Nanoscience Department, National Renewable Energy Lab, Golden, Colorado 80401, United States
| | - Jacob A Wrubel
- Chemistry & Nanoscience Department, National Renewable Energy Lab, Golden, Colorado 80401, United States
| | - Zhiwen Ma
- Chemistry & Nanoscience Department, National Renewable Energy Lab, Golden, Colorado 80401, United States
| | | | - Alex Keane
- Nel Hydrogen, 10 Technology Drive, Wallingford, Connecticut 06492, United States
| | - Kathy Ayers
- Nel Hydrogen, 10 Technology Drive, Wallingford, Connecticut 06492, United States
| | - Feng-Yuan Zhang
- Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville, Tullahoma, Tennessee 37388, United States
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23
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Morphology engineering of iridium electrodes via modifying titanium substrates with controllable pillar structures for highly efficient oxygen evolution reaction. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2021.139797] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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24
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Ding L, Hu J, Zhang Y, Xu J, Zhang M. Copper-Based Nanocatalysts with SiO 2 and Carbon Dual-Layer Coatings and Metallic Ni/CuNi Decoration toward Highly Efficient Nitroaromatics Reduction. Inorg Chem 2022; 61:1717-1727. [PMID: 35020384 DOI: 10.1021/acs.inorgchem.1c03582] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Nanocomposites with novel architectures and multifunctional properties have attracted extensive attention among related researchers. Herein, we develop a magnetically responsive Ni/CuNi nanoparticle (NP) decoration of Cu-based composites that could serve as recoverable nanocatalysts for nitroaromatics reduction. The nanocatalysts consist of an inner copper core and abundant tiny satellite Ni/CuNi NPs, which are tightly combined as a stable whole part by a silica interlayer and a carbon outer layer. In addition to the high catalytic activity, the outer Ni/CuNi NPs exhibit a strong magnetic response toward the external magnetic field, thereby offering a convenient way to separate the composites from the reaction solution. Moreover, characterization results reveal that high annealing temperature (above 700 °C) favors the construction of yolk-shell nanostructures and the formation of outer bimetallic CuNi NPs. As a result, owing to the excellent catalytic performance of the Cu inner cores, the high coverage of outer Ni or CuNi NPs, and the unique sandwich-like structure, the resultant Cu@SiO2@C-Ni composites show the use of such magnetically responsive recoverable nanocatalysts for the 4-nitrophenol reduction. Hence, this research could provide new guidelines for designing and synthesizing novel and efficient copper-based composites for other fields, such as carbon dioxide reduction, energy storage, and batteries.
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Affiliation(s)
- Lei Ding
- College of Chemical and Materials Engineering, Key Laboratory for Micro-Nano Energy Storage and Conversion Materials of Henan Province, Institute of Surface Micro and Nano Materials, Xuchang University, Xuchang 461000, China.,College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China.,Department of Mechanical, Aerospace and Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville 37388, United States
| | - Jiamin Hu
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China
| | - Yange Zhang
- College of Chemical and Materials Engineering, Key Laboratory for Micro-Nano Energy Storage and Conversion Materials of Henan Province, Institute of Surface Micro and Nano Materials, Xuchang University, Xuchang 461000, China
| | - Jingli Xu
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China
| | - Min Zhang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China
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25
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Ding L, Zheng J, Xu J, Yin XB, Zhang M. Rational design, synthesis, and applications of carbon-assisted dispersive Ni-based composites. CrystEngComm 2022. [DOI: 10.1039/d1ce01493e] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Herein, we review recent developments in the rational design and engineering of various carbon-assisted dispersive nickel-based composites, and boosted properties for protein adsorption and nitroaromatics reduction.
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Affiliation(s)
- Lei Ding
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China
- Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville 37388, USA
| | - Jing Zheng
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China
| | - Jingli Xu
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China
| | - Xue-Bo Yin
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China
| | - Min Zhang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, PR China
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26
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Chen H, Qiao S, Yang J, Du X. NiMo/NiCo2O4 as synergy catalyst supported on nickel foam for efficient overall water splitting. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2021.112086] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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27
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Li K, Yu S, Li D, Ding L, Wang W, Xie Z, Park EJ, Fujimoto C, Cullen DA, Kim YS, Zhang FY. Engineered Thin Diffusion Layers for Anion-Exchange Membrane Electrolyzer Cells with Outstanding Performance. ACS APPLIED MATERIALS & INTERFACES 2021; 13:50957-50964. [PMID: 34665589 DOI: 10.1021/acsami.1c14693] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Anion-exchange membrane electrolyzer cells (AEMECs) are one of the most promising technologies for carbon-neutral hydrogen production. Over the past few years, the performance and durability of AEMECs have substantially improved. Herein, we report an engineered liquid/gas diffusion layer (LGDL) with tunable pore morphologies that enables the high performance of AEMECs. The comparison with a commercial titanium foam in the electrolyzer indicated that the engineered LGDL with thin-flat and straight-pore structures significantly improved the interfacial contacts, mass transport, and activation of more reaction sites, leading to outstanding performance. We obtained a current density of 2.0 A/cm2 at 1.80 V with an efficiency of up to 81.9% at 60 °C under 0.1 M NaOH-fed conditions. The as-achieved high performance in this study provides insight to design advanced LGDLs for the production of low-cost and high-efficiency AEMECs.
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Affiliation(s)
- Kui Li
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville, Tullahoma, Tennessee 37388, United States
| | - Shule Yu
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville, Tullahoma, Tennessee 37388, United States
| | - Dongguo Li
- MPA-11: Materials Synthesis and Integrated Devices, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Lei Ding
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville, Tullahoma, Tennessee 37388, United States
| | - Weitian Wang
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville, Tullahoma, Tennessee 37388, United States
| | - Zhiqiang Xie
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville, Tullahoma, Tennessee 37388, United States
| | - Eun Joo Park
- MPA-11: Materials Synthesis and Integrated Devices, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Cy Fujimoto
- Nanoscale Sciences Department, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - David A Cullen
- Center for Nanophase Materials Science, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Yu Seung Kim
- MPA-11: Materials Synthesis and Integrated Devices, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Feng-Yuan Zhang
- Nanodynamics and High-Efficiency Lab for Propulsion and Power, Department of Mechanical, Aerospace & Biomedical Engineering, UT Space Institute, University of Tennessee, Knoxville, Tullahoma, Tennessee 37388, United States
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