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Feng J, Wei L, Li H, Shen J. Evaluation of individual metal contribution on active sites tailoring in multimetallic oxygen evolution catalytic system. J Colloid Interface Sci 2024; 678:176-185. [PMID: 39186897 DOI: 10.1016/j.jcis.2024.08.167] [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: 05/16/2024] [Revised: 07/30/2024] [Accepted: 08/21/2024] [Indexed: 08/28/2024]
Abstract
Synergistic effects among different metals have positioned multimetallic electrocatalysts as promising facilitators for enhancing the oxygen evolution reaction (OER), though understanding their precise mechanisms has remained elusive. Delving into the unique contributions of individual metals is crucial for comprehending the complex synergy within multimetallic systems. In this study, we employed quinary (Co, Ce, Fe, Cu, and Mn) molybdates as a model to systematically investigate the role of each metal species in tailoring active sites. Our systematic analyses unveiled the presence of crucial oxygen vacancies, which can be considered as the active sites in OER. Comparative analyses of the top-performing quinary molybdates and their quaternary counterparts highlighted distinct electronic interactions and varying densities of oxygen vacancies, indicative of the diverse electron and vacancy engineering capabilities inherent to different metals. Mott-schottky plots demonstrated the predominant contribution of Mn to specific catalytic activity, followed by Ce, Fe, Cu, and Co. Leveraging an in-situ methanol probing method, it was found that the introduction of Cu, Ce, Fe, and Mn weakened intermediate adsorption, with Mn and Ce having the most significant effects, whereas Co strengthened adsorption. This work can advance our comprehension of the role played by individual metals within multimetallic catalysts, thereby promoting a more profound understanding of synergistic effects.
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Affiliation(s)
- Jiejie Feng
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Liling Wei
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, Beijing 100190, China.
| | - Huayi Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, Beijing 100190, China.
| | - Jianquan Shen
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, Beijing 100190, China.
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Feng J, Chu C, Liu J, Wei L, Li H, Shen J. NiFe codoping-regulated amorphous/crystalline heterostructured Co-based hydroxides/tungstate with rich oxygen vacancies for efficient water oxidation catalysis. J Colloid Interface Sci 2024; 659:330-338. [PMID: 38176242 DOI: 10.1016/j.jcis.2023.12.133] [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: 09/27/2023] [Revised: 12/18/2023] [Accepted: 12/20/2023] [Indexed: 01/06/2024]
Abstract
Oxygen evolution reaction (OER) is a crucial half-reaction in water splitting, generating hydrogen for sustainable development, but it is often subject to sluggish kinetics. Abundant transition metal-based OER electrocatalysts have been utilized to expedite the process. However, traditional amorphous catalysts suffer from low conductivity, while the activity of crystalline catalysts is also unsatisfactory. Herein, an amorphous/crystalline heterostructured Co-based hydroxide/tungstate was meticulously constructed and further tailored using a NiFe codoping method (NiFeCoW). Following NiFe codoping, the electronic structure had been modulated, subsequently altering the adsorption toward intermediates. From the electrochemical measurements, the NiFeCoW catalyst demonstrated superior electrocatalytic activity for OER in alkaline media, with a minimal overpotential of 297 mV at 10 mA cm-2 and a cell voltage of 1.57 V for water splitting. This study provides valuable guidance for regulating the amorphous/crystalline heterophase in catalysts through bimetallic modulating engineering.
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Affiliation(s)
- Jiejie Feng
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Changshun Chu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianting Liu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Liling Wei
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, Beijing 100190, China.
| | - Huayi Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, Beijing 100190, China.
| | - Jianquan Shen
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, Beijing 100190, China.
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Operando spectroscopies capturing surface reconstruction and interfacial electronic regulation by FeOOH@Fe 2O 3@Ni(OH) 2 heterostructures for robust oxygen evolution reaction. J Colloid Interface Sci 2023; 636:501-511. [PMID: 36652825 DOI: 10.1016/j.jcis.2023.01.021] [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: 10/19/2022] [Revised: 12/15/2022] [Accepted: 01/05/2023] [Indexed: 01/12/2023]
Abstract
Developing high-performance and low-cost electrocatalysts for oxygen evolution reaction (OER) and understanding the phase evolution in the catalytic process are vital to improving the overall efficiency of electrochemical water splitting. Herein, a hybrid heterogeneous FeOOH@Fe2O3@Ni(OH)2 electrocatalyst with robust OER intrinsic activity and a low overpotential of 269 mV to obtain a current density of 100 mA cm-2 and a Tafel slope value of 60.15 mV dec-1 is effectively prepared. The dynamic surface evolution has been detected by in-situ Raman spectroscopy, which exposes that FeOOH@Fe2O3@Ni(OH)2 is reconstituted as Ni(Fe)OOH demonstrated as catalytically active species under high potential. X-ray photoelectron spectroscopy analysis indicates that partial electrons of Ni in the heterogeneous interface transfer to Fe. Furthermore, partial Fe doping of NiOOH under high potential accompanied by the oxidized Ni3+ with optimized d-orbit electronic configuration for nearly unity eg occupancy results in proper chemisorption bonding strength for oxygen reaction intermediates and is conducive to enhancing OER reaction kinetics. This work provides ideas that multicomponent heterostructure can adjust the electronic structure of iron and nickel to enhance the intrinsic activity of OER, which could help with the design and synthesis of high-performance OER catalysts used in energy storage and conversion.
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An efficient and robust chain-mail electrocatalyst Ni2P @ g-C3N4 for oxygen evolution in alkaline solution. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128929] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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5
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Shi H, Xie Y, Wang W, Zhang L, Zhang X, Shi Y, Fan J, Tang Z. In-situ construction of step-scheme MoS 2/Bi 4O 5Br 2 heterojunction with improved photocatalytic activity of Rhodamine B degradation and disinfection. J Colloid Interface Sci 2022; 623:500-512. [PMID: 35597019 DOI: 10.1016/j.jcis.2022.04.148] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 04/19/2022] [Accepted: 04/25/2022] [Indexed: 01/24/2023]
Abstract
In this paper, a novel Step-scheme MoS2/Bi4O5Br2 heterojunction was fabricated through the in-situ mechanical agitation method and the photocatalytic activity of that was examined by the photocatalytic degradation Rhodamine B (RhB) and inactivation of E.coli under visible light irradiation (λ > 420 nm). The Step-scheme MoS2/Bi4O5Br2 heterojunctions displayed the enhanced photocatalytic ability compared to pure Bi4O5Br2 and MoS2 and the MoS2/Bi4O5Br2-3% (MS/BOB-3) heterojunction exhibited the strongest photocatalytic activity which can completely inactivate the 1 × 107 cfu/mL with 180 min and degrade RhB (10 mg/L) with 24 min visible light irradiation, respectively. The photocatalytic mechanism of the MoS2/Bi4O5Br2 heterojunction is was attributed to the generated active species (h+, ·O2- and ·OH) which can effectively destroy RhB molecular and cell-membrane of bacterial as demonstrated by multiple techniques such as LC-MS and fluorescence stain. Additionally, characterization results disclosed that the transfer pathway of charge carriers of constructed MoS2/Bi4O5Br2 heterojunction followed the Step-scheme channel, which not only facilitated the separation and migration of the photo-generated charge carriers, but also improved the light absorption ability of the samples and resulting in the promoted photocatalytic performance of MoS2/Bi4O5Br2 heterojunction. This work paves a new idea to develop novel bismuth oxyhalide-based photocatalytic system for wastewater purification.
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Affiliation(s)
- Huanxian Shi
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang 712046, PR China; Shaanxi University of Chinese Medicine/Shaanxi Provice Key Laboratory of New Drugs and Chinese Medicine Foundation Research, Pharmacy College. Xianyang 9712083, PR China; Shaanxi University of Chinese Medicine/Shaanxi Collaborative Innovation Center of Idustrialization of Tradition Chinese Medicine Resources, Xianyang 712083, PR. China
| | - Yundong Xie
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang 712046, PR China
| | - Wei Wang
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang 712046, PR China
| | - Lihua Zhang
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang 712046, PR China; Shaanxi University of Chinese Medicine/Shaanxi Provice Key Laboratory of New Drugs and Chinese Medicine Foundation Research, Pharmacy College. Xianyang 9712083, PR China
| | - Xiaofei Zhang
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang 712046, PR China
| | - Yajun Shi
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang 712046, PR China; Shaanxi University of Chinese Medicine/Shaanxi Provice Key Laboratory of New Drugs and Chinese Medicine Foundation Research, Pharmacy College. Xianyang 9712083, PR China
| | - Jun Fan
- College of Food Science and Engineering, Northwest University, Xi'an 710069, PR China.
| | - Zhishu Tang
- School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang 712046, PR China; Shaanxi University of Chinese Medicine/Shaanxi Collaborative Innovation Center of Idustrialization of Tradition Chinese Medicine Resources, Xianyang 712083, PR. China.
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Facilely coupling CaTiO3 nanorods with Cu nanoparticles for enhanced photocatalytic hydrogen evolution through efficient charge separation. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Li L, Wu J, Huang L, Lan G, Wang N, Zhang H, Chen X, Ge X. In situ generation of Ni/Fe hydroxide layers by anodic etching of a Ni/Fe film for efficient oxygen evolution reaction. NEW J CHEM 2022. [DOI: 10.1039/d1nj05775h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A Ni/Fe hydroxide electrocatalyst was fabricated via a simple and easily controlled method by combining anodic fluoridation and cyclic voltammetry (CV) treatment as an efficient catalyst for the OER.
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Affiliation(s)
- Ling Li
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan, 610500, P. R. China
| | - Jing Wu
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan, 610500, P. R. China
- China Petroleum Pipeline Research Institute CO., LTD, Langfang, Hebei, 065000, P. R. China
| | - Lieyuan Huang
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan, 610500, P. R. China
| | - Gaoli Lan
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan, 610500, P. R. China
| | - Naxiang Wang
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan, 610500, P. R. China
| | - Hui Zhang
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan, 610500, P. R. China
| | - Xin Chen
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan, 610500, P. R. China
| | - Xingbo Ge
- School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan, 610500, P. R. China
- Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Southwest Petroleum University, Chengdu, Sichuan, 610500, P. R. China
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Fan RY, Zhang XY, Yu N, Wang FG, Zhao HY, Liu X, Lv QX, Liu D, Chai Y, Dong B. Rapid “self-healing” behavior induced by chloride anions to renew Fe-Ni(oxy)hydroxide surface for long-term alkaline seawater electrolysis. Inorg Chem Front 2022. [DOI: 10.1039/d2qi01078j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Due to the surface adsorption and interlayer insertion behavior of chloride anions, Fe-Ni(oxy)hydroxide catalytic surface is easily destroyed, making it difficult to be used for long-term seawater electrolysis. Here, we...
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Sarma L, Mann G, Datta A, Thirumal M. Fabrication of tailored rod-shaped carbon nitride, g-C 3N 4, decorated with MoSe 2 flowers for the catalytic reduction of nitrophenol, organic dye degradation and biocompatibility studies. NEW J CHEM 2022. [DOI: 10.1039/d1nj06135f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile hydrothermal approach was used to synthesize a self-assembled tailored rod-shaped g-C3N4 anchored with molybdenum diselenide (MoSe2) flowers.
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Affiliation(s)
- Liza Sarma
- Department of Chemistry, University of Delhi, Delhi-110007, India
| | - Garima Mann
- Department of Chemistry, University of Delhi, Delhi-110007, India
- Institute of Nuclear Medicine & Allied Sciences, DRDO, Brig. SK Mazumdar Marg, Delhi 110054, India
| | - Anupama Datta
- Institute of Nuclear Medicine & Allied Sciences, DRDO, Brig. SK Mazumdar Marg, Delhi 110054, India
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Investigating the active sites in molybdenum anchored nitrogen-doped carbon for alkaline oxygen evolution reaction. J Colloid Interface Sci 2021; 609:617-626. [PMID: 34801237 DOI: 10.1016/j.jcis.2021.11.058] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 11/11/2021] [Accepted: 11/12/2021] [Indexed: 11/24/2022]
Abstract
Developing durable and efficient non-precious-metal based catalysts for oxygen evolution reaction (OER) is highly desirable in the field of electrocatalysis. In this work, a series of novel Mo anchored N-doped carbon catalysts (denoted as Mo/NC-T) were prepared starting from the zeolitic imidazolate framework 8 (ZIF-8) precursor. Firstly, Mo doped ZIF-8 precursor (Mo/ZIF-8) with a regular polyhedron structure was formed through a simple ion-exchange method process between molybdenum pentachloride (MoCl5) and ZIF-8. Afterward, Mo/ZIF-8 was converted to Mo/NC-T through a two-step calcination process in nitrogen (N2) and ammonia (NH3). The as-synthesized Mo/NC-T samples exhibited superior electrocatalytic OER properties. The optimal sample at 650 °C (Mo/NC-650) presented a low overpotential of 320 mV at 10 mA cm-2, a Tafel slope of 71 mV dec-1, and an outstanding long-term stability for 30 h in 1 M KOH solution. The remarkable OER activity of Mo/NC-T could be ascribed to the structural stability of carbon matrix and the synergistic effect between Mo3+ (derived from Mo-C bonds) and pyridinic N. This work provides a novel perspective on the roles of Mo species in the N-doped carbon electrocatalysts for OER.
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Lai H, Zeng X, Song T, Yin S, Long B, Ali A, Deng GJ. Fast synthesis of porous iron doped CeO 2 with oxygen vacancy for effective CO 2 photoreduction. J Colloid Interface Sci 2021; 608:1792-1801. [PMID: 34742088 DOI: 10.1016/j.jcis.2021.10.064] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 10/11/2021] [Accepted: 10/12/2021] [Indexed: 01/10/2023]
Abstract
The activity of photocatalytic CO2 conversion to carbon-containing products is determined by the adsorption and activation of CO2 molecules on the surface of catalyst. Here, iron doped porous CeO2 with oxygen vacancy (PFeCe) was prepared by one-step combustion method. The amount of CO2 adsorbed via using the porous structure has been significantly increased in the case of a relatively small specific surface area and CO2 molecules are more easily captured and undergo a reduction reaction with photoinduced carriers. In addition, oxygen vacancies are formed in the iron doped CeO2 lattice as the active sites for CO2 reduction, which can form strong interactions with CO2 molecules, thereby effectively activating CO2 molecules. The reduction products of CO2 over PFeCe composite are CO and CH4, which is approximately 9.0 and 7.7 folds than that of CeO2. This work offers insights for the construction of efficient ceria-based photocatalysts to further achieve robust solar CO2 conversion.
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Affiliation(s)
- Haiwei Lai
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, PR China
| | - Xiangdong Zeng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, PR China
| | - Ting Song
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, PR China.
| | - Shiheng Yin
- Analytical and Testing Center, South China University of Technology, Guangzhou 510640, PR China
| | - Bei Long
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, PR China
| | - Atif Ali
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, PR China.
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