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Umapathy K, Muthamildevi M, Thiruvengadam D, Vijayarangan M, Rajan K, Jayabharathi J. Greenly Synthesized CoPBA@PANI as a Proficient Electrocatalyst for Oxygen Evolution Reaction and Its Green Sustainability Assessments. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:13102-13115. [PMID: 38864833 DOI: 10.1021/acs.langmuir.4c01023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
Water electrolysis is a key factor to generate mobile and sustainable energy sources for H2 production. Cobalt-based Prussian Blue analogues encompassed with polymer support electrocatalysts CoPBAX@PANI (CoPBA@PANI-100, CoPBA@PANI-200, and CoPBA@PANI-300) have been synthesized and characterized. The well-designed CoPBA@PANI-200/GC shows a low overpotential (η10) of 301 mV with a small Tafel slope (56 mV dec-1), comapred to that of IrO2 (348 mV ; 98 mV dec-1) for OER. The conductivity with stability of CoPBAX@PANI have been increased due to the synergistic effect of CoPBA with PANI. PANI provides additional active sites and shows strong binding with Co ions, and the even distribution of CoPBA overcomes the sluggish kinetics. The turnover frequency (TOF) of CoPBA@PANI-200/GC (0.0212, s-1) was ∼15 times higher than IrO2 (0.0014 s-1) at 1.60 V. Furthermore, CoPBA@PANI-200/NF delivers low overpotential of 274 mV@10 mA cm-2 and exhibits a durability of >250 h with a potential loss of 4.2%. Benefiting from strong electronic interaction between polymer support and evenly distributed CoPBA, CoPBAx@PANI shows higher electrochemical active surface area (ECSA) of 53.08 mF cm-2. The solar-based water electrolysis confirmed the practical use of CoPBA@PANI-200/NF (1.57 V) for eco-benign industrial H2 production. The CoPBA@PANI-200 shows exceptional OER performances as well as favorable kinetics to resolve the sluggish water oxidation. Hence, the cost-effective CoPBA@PANI performances opens a prospective way to boost the efficiency of other cobalt-derived catalysts in renewable energy devices.
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Affiliation(s)
- Krishnan Umapathy
- Department of Chemistry, Material Science Lab, Annamalai University, Annamalai Nagar, Tamilnadu 608002, India
| | - Murugan Muthamildevi
- Department of Chemistry, Material Science Lab, Annamalai University, Annamalai Nagar, Tamilnadu 608002, India
| | - Dhanasingh Thiruvengadam
- Department of Chemistry, Material Science Lab, Annamalai University, Annamalai Nagar, Tamilnadu 608002, India
| | - Murugan Vijayarangan
- Department of Chemistry, Material Science Lab, Annamalai University, Annamalai Nagar, Tamilnadu 608002, India
| | - Kuppusamy Rajan
- Department of Chemistry, Material Science Lab, Annamalai University, Annamalai Nagar, Tamilnadu 608002, India
| | - Jayaraman Jayabharathi
- Department of Chemistry, Material Science Lab, Annamalai University, Annamalai Nagar, Tamilnadu 608002, India
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Hu M, Liang C, Zhou H, Guo K, Zhu W, Dai L. Thermal Air Oxidation-Mediated Synchronous Coordination and Carbonation of Lanthanum on Biochar toward Phosphorus Adsorption from Wastewater. Inorg Chem 2023; 62:13985-13996. [PMID: 37590904 DOI: 10.1021/acs.inorgchem.3c01977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
Biochar has attracted increasing attention as the sustainable and structure-tunable carrier for lanthanum (La) species for diverse applications. Carbonated La species possesses a higher biocompatibility and a lower leaching potential than other commonly used La species, while less attention is paid on the application of carbonated La in phosphorus (P) adsorption. Herein, thermal air oxidation (TAO) was applied as a novel strategy for synchronously tuning the coordination environment and chemical species of La on biochar surface. The results demonstrated that TAO induced the coordination of La with oxidation-generated oxygenated functional groups (OFGs) and carbonation of La species by the oxidation-generated CO2 on the biochar surface. The batch adsorption results showed that the Qm of resultant biochar remarkably increased from 68.92 to 132.49 mg/g at 1 g/L dosage. It also showed a robust adsorption stability in pH 2-6, a strong resistance to the co-existing Cl-, SO42-, NO3-, CO32-, or HCO3-, a stable adsorption recyclability, and an ultralow La leaching potential. The P adsorption was dominated by ligand exchange-induced inner-sphere complexation. In practical swine wastewater, the resultant biochar composite (1 g/L) removed 99.87% of P from 92.3 to 0.12 mg/L at a practical pH of 7.12. The density functional theory calculation further revealed the significant role of the binding of carbonated La by the biochar surface OFGs in reducing the P adsorption energies, indicating the synergism between the oxygenated biochar carrier and the carbonated La in P adsorption. Finally, this study provided a novel route to synchronously tune the coordination environment and chemical species of La on biochar via a facile TAO process for high-efficient P adsorption from wastewater.
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Affiliation(s)
- Mao Hu
- College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Chenghu Liang
- College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
- Key Laboratory of Development and Application of Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu 610041, PR China
| | - Haiqin Zhou
- Key Laboratory of Development and Application of Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu 610041, PR China
| | - Kai Guo
- College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
- Key Laboratory of Development and Application of Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu 610041, PR China
| | - Wenkun Zhu
- School of National Defense Science & Technology, Southwest University of Science and Technology, Mianyang 621010, China
| | - Lichun Dai
- Key Laboratory of Development and Application of Rural Renewable Energy of Ministry of Agriculture and Rural Affairs, Biogas Institute of Ministry of Agriculture and Rural Affairs, Chengdu 610041, PR China
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Kumar S, Singh S, Mathur N, Roy P, Joshi H. Titania Nanorod-Supported Mercaptoundecanoic Acid-Grafted Palladium Nanoparticles as a Highly Reusable Heterogeneous Catalyst for Substrate-Dependent Ullmann Coupling and Debromination of Aryl Bromides. Inorg Chem 2023; 62:3993-4002. [PMID: 36802522 DOI: 10.1021/acs.inorgchem.2c04537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
Herein, by implanting palladium nanoparticles (Pd NPs) onto titanium dioxide (TiO2) nanorods (NRs) through 11-mercaptoundecanoic acid (MUA), we devised a robust heterogeneous catalyst. The formation of Pd-MUA-TiO2 nanocomposites (NCs) was authenticated using Fourier transform infrared spectroscopy, powder X-ray diffraction, transmission electron microscopy, energy-dispersive X-ray analysis, Brunauer-Emmett-Teller analysis, atomic absorption spectroscopy, and X-ray photoelectron spectroscopy techniques. Pd NPs were synthesized directly onto TiO2 nanorods without the MUA support for comparative studies. As a means of evaluating the endurance and competency of Pd-MUA-TiO2 NCs compared to their counterpart (Pd-TiO2 NCs), both were used as the heterogeneous catalyst for Ullmann coupling of a wide variety of aryl bromides. When Pd-MUA-TiO2 NCs were used, the reaction produced high yields of homocoupled products (54-88%), whereas the yield was only 76% when Pd-TiO2 NCs were used. Moreover, Pd-MUA-TiO2 NCs impressed with their outstanding reusability property, allowing over 14 reaction cycles without losing efficiency. On the flip side, just after seven reaction cycles, the productivity of Pd-TiO2 NCs dropped around 50%. Presumably, the strong affinity of Pd for the thiol groups of MUA allowed for the substantial control of leaching out of Pd NPs during the reaction. Nonetheless, another crucial feature of the catalyst is that the di-debromination reaction took place with an excellent yield of 68-84% from di-aryl bromides with long alkyl chains instead of macrocyclic or dimerized products. It is worth mentioning that AAS data confirmed that only 0.30 mol % catalyst loading was sufficient to activate a broad substrate scope with large functional group tolerance.
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Affiliation(s)
- Sunil Kumar
- ISC Laboratory, Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer, Rajasthan 305817, India
| | - Sohan Singh
- ISC Laboratory, Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer, Rajasthan 305817, India
| | - Neha Mathur
- Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer, Rajasthan 305817, India
| | - Partha Roy
- Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer, Rajasthan 305817, India
| | - Hemant Joshi
- ISC Laboratory, Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer, Rajasthan 305817, India
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Wang G, Wang C, Zhang H, Liu Y, Xu J. Facile preparation of Cu-Fe oxide nanoplates for ammonia borane decomposition and tandem nitroarene hydrogenation. RSC Adv 2021; 11:29920-29924. [PMID: 35480258 PMCID: PMC9040926 DOI: 10.1039/d1ra04175d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Accepted: 08/31/2021] [Indexed: 12/25/2022] Open
Abstract
A facile substrate involved strategy was used to prepare Cu-Fe LDO (layered double oxide) nanoplates. The material exhibited good-efficiency for decomposition of ammonia borane (AB) in alkaline methanol solution. Significantly, the material also demonstrated excellent catalytic performance in the reduction of various nitroarenes by coupling with AB hydrolysis in a one pot tandem reaction, and gave excellent yields of the corresponding amine products.
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Affiliation(s)
- Guoqiang Wang
- College of Chemistry and Material Science, Shandong Agricultural University Tai'an 271018 P. R. China
| | - Chuanjun Wang
- College of Chemistry and Material Science, Shandong Agricultural University Tai'an 271018 P. R. China
| | - Hao Zhang
- College of Chemistry and Material Science, Shandong Agricultural University Tai'an 271018 P. R. China
| | - Youle Liu
- College of Chemistry and Material Science, Shandong Agricultural University Tai'an 271018 P. R. China
| | - Jing Xu
- College of Chemistry and Material Science, Shandong Agricultural University Tai'an 271018 P. R. China
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Ghosh S, Tudu G, Mondal A, Ganguli S, Inta HR, Mahalingam V. Inception of Co3O4 as Microstructural Support to Promote Alkaline Oxygen Evolution Reaction for Co0.85Se/Co9Se8 Network. Inorg Chem 2020; 59:17326-17339. [PMID: 33213153 DOI: 10.1021/acs.inorgchem.0c02618] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Sourav Ghosh
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal 741246, India
| | - Gouri Tudu
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal 741246, India
| | - Ayan Mondal
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal 741246, India
| | - Sagar Ganguli
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal 741246, India
| | - Harish Reddy Inta
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal 741246, India
| | - Venkataramanan Mahalingam
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Kolkata, Mohanpur, West Bengal 741246, India
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