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Graves LS, Sarkar R, Baker J, Lao KU, Arachchige IU. Structure- and Morphology-Controlled Synthesis of Hexagonal Ni 2-x Zn x P Nanocrystals and Their Composition-Dependent Electrocatalytic Activity for Hydrogen Evolution Reaction. ACS APPLIED ENERGY MATERIALS 2024; 7:5679-5690. [PMID: 39055071 PMCID: PMC11267498 DOI: 10.1021/acsaem.4c00539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 06/27/2024] [Accepted: 07/02/2024] [Indexed: 07/27/2024]
Abstract
Nickel phosphides are an emerging class of earth-abundant catalysts for hydrogen generation through water electrolysis. However, the hydrogen evolution reaction (HER) activity of Ni2P is lower than that of benchmark Pt group catalysts. To address this limitation, an integrated theoretical and experimental study was performed to enhance the HER activity and stability of hexagonal Ni2P through doping with synergistic transition metals. Among the nine dopants computationally studied, zinc emerged as an ideal candidate due to its ability to modulate the hydrogen binding free energy (ΔG H) closer to a thermoneutral value. Consequently, phase pure hexagonal Ni2-x Zn x P nanocrystals (NCs) with a solid spherical morphology, variable compositions (x = 0-17.14%), and size in the range of 6.8 ± 1.1-9.1 ± 1.1 nm were colloidally synthesized to investigate the HER activity and stability in alkaline electrolytes. As predicted, the HER performance was observed to be composition-dependent with Zn compositions (x) of 0.03, 0.07, and 0.15 demonstrating superior activity with overpotentials (η-10) of 188.67, 170.01, and 135.35 mV, respectively at a current density of -10 mA/cm2, in comparison to Ni2P NCs (216.2 ± 4.4 mV). Conversely, Ni2-x Zn x P NCs with x = 0.01, 0.38, 0.44, and 0.50 compositions showed a notable decrease in HER activity, with corresponding η-10 of 225.3 ± 3.2, 269.9 ± 4.3, 276.4 ± 3.7 and 263.9 ± 4.9 mV, respectively. The highest HER active catalyst was determined to be Ni1.85Zn0.15P NCs, featuring a Zn concentration of 5.24%, consistent with composition-dependent ΔG H calculations. The highest performing Ni1.85Zn0.15P NCs displayed a Heyrovsky HER mechanism, enhanced kinetics and electrochemically active surface area (ECSA), and superior corrosion tolerance with a negligible increase of η-10 after 10 h of continuous HER. This study provides critical insights into enhancing the performance of metal phosphides through doping-induced electronic structure variation, paving the way for the design of high-efficiency and durable nanostructures for heterogeneous catalytic studies.
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Affiliation(s)
| | | | - Jordon Baker
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284-2006, United States
| | - Ka Un Lao
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284-2006, United States
| | - Indika U. Arachchige
- Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia 23284-2006, United States
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Malhotra D, Nguyen TH, Tran DT, Dinh VA, Kim NH, Lee JH. Triphasic Ni 2P-Ni 12P 5-Ru with Amorphous Interface Engineering Promoted by Co Nano-Surface for Efficient Water Splitting. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309122. [PMID: 38377285 DOI: 10.1002/smll.202309122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 01/13/2024] [Indexed: 02/22/2024]
Abstract
This research designs a triphasic Ni2P-Ni12P5-Ru heterostructure with amorphous interface engineering strongly coupled by a cobalt nano-surface (Co@NimPn-Ru) to form a hierarchical 3D interconnected architecture. The Co@NimPn-Ru material promotes unique reactivities toward hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in alkaline media. The material delivers an overpotential of 30 mV for HER at 10 mA cm-2 and 320 mV for OER at 50 mA cm-2 in freshwater. The electrolyzer cell derived from Co@NimPn-Ru(+,-) requires a small cell voltage of only 1.43 V in alkaline freshwater or 1.44 V in natural seawater to produce 10 mA cm-2 at a working temperature of 80 °C, along with high performance retention after 76 h. The solar energy-powered electrolyzer system also shows a prospective solar-to-hydrogen conversion efficiency and sufficient durability, confirming its good potential for economic and sustainable hydrogen production. The results are ascribed to the synergistic effects by an exclusive combination of multi-phasic crystalline Ni2P, Ni12P5, and Ru clusters in presence of amorphous phosphate interface attached onto cobalt nano-surface, thereby producing rich exposed active sites with optimized free energy and multi open channels for rapid charge transfer and ion diffusion to promote the reaction kinetics.
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Affiliation(s)
- Deepanshu Malhotra
- Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju, Jeonbuk, 54896, Republic of Korea
| | - Thanh Hai Nguyen
- Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju, Jeonbuk, 54896, Republic of Korea
| | - Duy Thanh Tran
- Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju, Jeonbuk, 54896, Republic of Korea
| | - Van An Dinh
- Department of Precision Engineering, Graduate School of Engineering, Osaka University, 2-1, Yamada-oka, Suita, Osaka, 565-0871, Japan
| | - Nam Hoon Kim
- Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju, Jeonbuk, 54896, Republic of Korea
- AHES Co., 445 Techno Valley-ro, Bongdong-eup, Jeonbuk, Wanju-gun, Republic of Korea
| | - Joong Hee Lee
- Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju, Jeonbuk, 54896, Republic of Korea
- AHES Co., 445 Techno Valley-ro, Bongdong-eup, Jeonbuk, Wanju-gun, Republic of Korea
- Carbon Composite Research Center, Department of Polymer-Nano Science and Technology, Jeonbuk National University, Jeonju, Jeonbuk, 54896, Republic of Korea
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Guo B, Zhao J, Xu Y, Wen X, Ren X, Huang X, Niu S, Dai Y, Gao R, Xu P, Li S. Noble Metal Phosphides Supported on CoNi Metaphosphate for Efficient Overall Water Splitting. ACS APPLIED MATERIALS & INTERFACES 2024; 16:8939-8948. [PMID: 38334369 DOI: 10.1021/acsami.3c19077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
Transition metal metaphosphates and noble metal phosphides prepared under similar conditions are potential hybrid catalysts for electrocatalytic water splitting, which is of great significance for H2 production. Herein, the structure and electrocatalytic activity of different noble metal species (i.e., Rh, Pd, Ir) on CoNiP4O12 nanoarrays have been systematically studied. Due to the different formation energies of noble metal phosphides, the phosphides of Rh (RhPx) and Pd (PdPx) as well as the noble metal Ir are obtained under the same phosphorylation conditions perspectively. RhPx/CoNiP4O12 and PdPx/CoNiP4O12 exhibit much better HER activity than Ir/CoNiP4O12 due to the advantages of phosphides. Density functional theory (DFT) calculations reveal that the extraordinary activity of RhPx/CoNiP4O12 originated from the strong affinity to H2O and optimal adsorption for H*. The best RhPx/CoNiP4O12 only requires a low overpotential of 30 and 234 mV to deliver 10 mA cm-2 for HER and OER, respectively, and therefore is effective for overall water splitting (requiring 1.57 V to achieve a current density of 10 mA cm-2). This work not only develops a novel RhPx/CoNiP4O12 electrocatalyst for overall water splitting but also provides deep insight into the formation mechanism of noble metal phosphides.
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Affiliation(s)
- Bingrong Guo
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jianying Zhao
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Yao Xu
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering and College of Engineering, and BIC-ESAT, Peking University, Beijing 100871, China
| | - Xinxin Wen
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xiaoqian Ren
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xiaoxiao Huang
- Department of Physics, Beijing Normal University, Beijing 100875, China
| | - Siqi Niu
- Division of Energy Storage, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Yulong Dai
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Ruhai Gao
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Ping Xu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China
| | - Siwei Li
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, China
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Abd El-Lateef HM, Khalaf MM, Mohamed IM. XPS analysis, voltammetric, and impedance characteristics of novel heterogeneous biphosphates based on Cu/Ni for tri(ammonium) phosphate oxidation: A new direction for material processing in fuel technology. FUEL 2024; 356:129618. [DOI: 10.1016/j.fuel.2023.129618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Guo B, Wen X, Xu L, Ren X, Niu S, YangCheng R, Ma G, Zhang J, Guo Y, Xu P, Li S. Noble Metal Phosphides: Robust Electrocatalysts toward Hydrogen Evolution Reaction. SMALL METHODS 2023:e2301469. [PMID: 38161258 DOI: 10.1002/smtd.202301469] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Indexed: 01/03/2024]
Abstract
Facing with serious carbon emission issues, the production of green H2 from electrocatalytic hydrogen evolution reaction (HER) has received extensive research interest. Almost all kinds of noble metal phosphides (NMPs) consisting of Pt-group elements (i.e., Ru, Rh, Pd, Os, Ir and Pt) are all highly active and pH-universal electrocatalysts toward HER. In this review, the recent progress of NMP-based HER electrocatalysts is summarized. It is further take typical examples for discussing important impact factors on the HER performance of NMPs, including crystalline phase, morphology, noble metal element and doping. Moreover, the synthesis and HER application of hybrid catalysts consisting of NMPs and other materials such as transition metal phosphides, oxides, sulfides and phosphates, carbon materials and noble metals is also reviewed. Reducing the use of noble metal is the key idea for NMP-based hybrid electrocatalysts, while the expanded functionality and structure-performance relationship are also noticed in this part. At last, the potential opportunities and challenges for this kind of highly active catalyst is discussed.
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Affiliation(s)
- Bingrong Guo
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Xinxin Wen
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Li Xu
- Novel Energy Materials & Catalysis Research Center, Shanwei Innovation Industrial Design & Research Institute, Shanwei, 516600, P. R. China
| | - Xiaoqian Ren
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Siqi Niu
- Division of Energy Storage, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, P. R. China
| | - Ruixue YangCheng
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Guoxin Ma
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Junchao Zhang
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Ying Guo
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an, 710129, P. R. China
| | - Ping Xu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Siwei Li
- Institute of Industrial Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
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Sheng H, Qu H, Zeng B, Li Y, Xia C, Li C, Cao L, Dong B. Enriched Fe Doped on Amorphous Shell Enable Crystalline@Amorphous Core-Shell Nanorod Highly Efficient Electrochemical Water Oxidation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300876. [PMID: 37127875 DOI: 10.1002/smll.202300876] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/10/2023] [Indexed: 05/03/2023]
Abstract
The rational design of efficient and cost-effective electrocatalysts for oxygen evolution reaction (OER) with sluggish kinetics, is imperative to diverse clean energy technologies. The performance of electrocatalyst is usually governed by the number of active sites on the surface. Crystalline/amorphous heterostructure has exhibited unique properties and opens new paradigms toward designing electrocatalysts with abundant active sites for improved performance. Hence, Fe doped Ni-Co phosphite (Fe-NiCoHPi) electrocatalyst with cauliflower-like structure, comprising crystalline@amorphous core-shell nanorod, is reported. The experiments uncover that Fe is enriched in the amorphous shell due to the flexibility of the amorphous component. Further density functional theory calculations indicate that the strong electronic interaction between the enriched Fe in the amorphous shell and crystalline core host at the core-shell interface, leads to balanced binding energies of OER intermediates, which is the origin of the catalyst-activity. Eventually, the Fe-NiCoHPi exhibits remarkable activity, with low overpotentials of only 206 and 257 mV at current density of 15 and 100 mA cm-2 . Unceasing durability over 90 h is achieved, which is superior to the effective phosphate electrocatalysts. Although the applications at high current remain challenges , this work provides an approach for designing advanced OER electrocatalysts for sustainable energy devices.
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Affiliation(s)
- Hongbin Sheng
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao, Shandong, 266100, P. R. China
| | - Hao Qu
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao, Shandong, 266100, P. R. China
| | - Biao Zeng
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao, Shandong, 266100, P. R. China
| | - Yanxin Li
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao, Shandong, 266100, P. R. China
| | - Chenghui Xia
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao, Shandong, 266100, P. R. China
| | - Can Li
- Institute of Optoelectronic Materials and Devices, College of Optical and Electronic Technology, China Jiliang University, 256 Xueyuan Street, Hangzhou, Zhejiang, 310018, P. R. China
| | - Lixin Cao
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao, Shandong, 266100, P. R. China
| | - Bohua Dong
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao, Shandong, 266100, P. R. China
- Center for Ocean Carbon Neutrality, Ocean University of China, 1299 Sansha Road, Qingdao, Shandong, 266404, P. R. China
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7
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Zheng X, Peng Y, Xu S, Huang L, Liu Y, Li D, Zhu J, Jiang D. NiCoP-nanocubes-decorated CoSe 2 nanowire arrays as high-performance electrocatalysts toward oxygen evolution reaction. J Colloid Interface Sci 2023; 648:141-148. [PMID: 37295366 DOI: 10.1016/j.jcis.2023.05.192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 05/26/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023]
Abstract
Designing effective, robust, and low-cost catalysts for oxygen evolution reaction (OER) is an urgent requirement yet challenging task in water electrolysis. In this study, a NiCoP-nanocubes-decorated CoSe2 nanowires arrays three-dimensional/two-dimensional (3D/2D) electrocatalyst (NiCoP-CoSe2-2) was developed for catalyzing OER via a combined selenylation, co-precipitation, and phosphorization method. The as-obtained NiCoP-CoSe2-2 3D/2D electrocatalyst exhibits a low overpotential of 202 mV at 10 mA cm-2 with a small Tafel slope of 55.6 mV dec-1, which is superior to most of reported CoSe2 and NiCoP-based heterogeneous electrocatalysts. Experimental analyses and density functional theory (DFT) calculations proof that the interfacial coupling and synergy between CoSe2 nanowires and NiCoP nanocubes are not only beneficial to strengthen the charge transfer ability and accelerate reaction kinetics, but also facilitate the optimization of interfacial electronic structure, thereby enhancing the OER property of NiCoP-CoSe2-2. This study offers insights for the investigation and construction of transition metal phosphide/selenide heterogeneous electrocatalyst toward OER in alkaline media and broadens the prospect of industrial applications in energy storage and conversion fields.
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Affiliation(s)
- Xinyu Zheng
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Ying Peng
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Shengjie Xu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Longhui Huang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yu Liu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Di Li
- Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China
| | - Jianjun Zhu
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Deli Jiang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
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Li Y, Zhang X, Liu L, Sheng H, Li C, Cao L, Li H, Xia C, Dong B. Ultra-Low Pt Doping and Pt-Ni Pair Sites in Amorphous/Crystalline Interfacial Electrocatalyst Enable Efficient Alkaline Hydrogen Evolution. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300368. [PMID: 36879475 DOI: 10.1002/smll.202300368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/20/2023] [Indexed: 06/08/2023]
Abstract
Noble metal doping can achieve an increase in mass activity (MA) without sacrificing catalysis efficiency and stability, so that alkaline hydrogen evolution reaction (HER) performance of the catalyst can be optimized to the maximum degree. However, its excessively large ionic radius makes it difficult to achieve either interstitial doping or substitutional doping under mild conditions. Herein, a hierarchical nanostructured electrocatalyst with enriched amorphous/crystalline interfaces for high-efficiency alkaline HER is reported, which is composed of amorphous/crystalline (Co, Ni)11 (HPO3 )8 (OH)6 homogeneous hierarchical structure with an ultra-low doped Pt (Pt-a/c-NiHPi). Benefiting from the structural flexibility of the amorphous component, extremely low Pt (0.21 wt.%, totally 3.31 µg Pt on 1 cm-2 NF) are stably doped on it via a simple two-phase hydrothermal method. The DFT calculations show that due to the strongly electron transfer between the crystalline/amorphous components at the interfaces, electrons finally concentrate toward Pt and Ni in the amorphous components, thus the electrocatalyst has near-optimal energy barriers and adsorption energy for H2 O* and H* . With the above benefits, the obtained catalyst exhibits an exceptionally high MA (39.1 mA µg-1 Pt ) at 70 mV, which is almost the highest level among the reported Pt-based electrocatalysts for alkaline HER.
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Affiliation(s)
- Yanxin Li
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao, Shandong Province, 266100, P. R. China
| | - Xiaoyan Zhang
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao, Shandong Province, 266100, P. R. China
| | - Lin Liu
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao, Shandong Province, 266100, P. R. China
| | - Hongbin Sheng
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao, Shandong Province, 266100, P. R. China
| | - Can Li
- Institute of Optoelectronic Materials and Devices, College of Optical and Electronic Technology, China Jiliang University, 256 Xueyuan Street, Hangzhou, Zhejiang, 310018, P. R. China
| | - Lixin Cao
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao, Shandong Province, 266100, P. R. China
| | - Haiyan Li
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao, Shandong Province, 266100, P. R. China
| | - Chenghui Xia
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao, Shandong Province, 266100, P. R. China
| | - Bohua Dong
- School of Materials Science and Engineering, Ocean University of China, 238 Songling Road, Qingdao, Shandong Province, 266100, P. R. China
- Center for Ocean Carbon Neutrality, Ocean University of China, 238 Songling Road, Qingdao, Shandong Province, 266100, P. R. China
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Jia Z, Lyu X, Zhao M, Dang J, Zhu L, Guo X, Wang X, Bai Z, Yang L. In Situ Reconstructed Mo-doped Amorphous FeOOH Boosts the Oxygen Evolution Reaction. Chem Asian J 2023; 18:e202201305. [PMID: 36696069 DOI: 10.1002/asia.202201305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/24/2023] [Accepted: 01/25/2023] [Indexed: 01/26/2023]
Abstract
Developing a fast and highly active oxygen evolution reaction (OER) catalyst to change energy kinetics technology is essential for making clean energy. Herein, we prepare three-dimensional (3D) hollow Mo-doped amorphous FeOOH (Mo-FeOOH) based on the precatalyst MoS2 /FeC2 O4 via in situ reconstruction strategy. Mo-FeOOH exhibits promising OER performance. Specifically, it has an overpotential of 285 mV and a durability of 15 h at 10 mA cm-2 . Characterizations indicate that Mo was included inside the FeOOH lattice, and it not only modifies the electronic energy levels of FeOOH but also effectively raises the inherent activity of FeOOH for OER. Additionally, in situ Raman analysis indicates that FeC2 O4 gradually transforms into the FeOOH active site throughout the OER process. This study provides ideas for designing in situ reconstruction strategies to prepare heteroatom doping catalysts for high electrochemical activity.
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Affiliation(s)
- Zhichao Jia
- Henan Normal University, School of Chemistry and Chemical Engineering, Xinxiang, Henan, 453007, P. R. China
| | - Xiang Lyu
- Oak Ridge National Laboratory, Electrification and Energy Infrastructures Division, Oak Ridge, TN 37831, USA
| | - Mingsheng Zhao
- Henan Normal University, School of Chemistry and Chemical Engineering, Xinxiang, Henan, 453007, P. R. China
| | - Jianan Dang
- Henan Normal University, School of Chemistry and Chemical Engineering, Xinxiang, Henan, 453007, P. R. China
| | - Linge Zhu
- Henan Normal University, School of Chemistry and Chemical Engineering, Xinxiang, Henan, 453007, P. R. China
| | - Xiaowei Guo
- Henan Normal University, School of Chemistry and Chemical Engineering, Xinxiang, Henan, 453007, P. R. China
| | - Xiaobing Wang
- Henan Normal University, School of Chemistry and Chemical Engineering, Xinxiang, Henan, 453007, P. R. China
| | - Zhengyu Bai
- Henan Normal University, School of Chemistry and Chemical Engineering, Xinxiang, Henan, 453007, P. R. China
| | - Lin Yang
- Henan Normal University, School of Chemistry and Chemical Engineering, Xinxiang, Henan, 453007, P. R. China
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