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Ma P, Ding M, Zhang Y, Rong W, Yao J. Integration of lanthanide-imidazole containing polymer with metal-organic frameworks for efficient cycloaddition of CO2 with epoxides. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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Perveen F, Farooq M, Ramli A, Naeem A, khan IW, Saeed T, khan J. Levulinic Acid Production from Waste Corncob Biomass Using an Environmentally Benign WO 3-Grafted ZnCo 2O 4@CeO 2 Bifunctional Heterogeneous Catalyst. ACS OMEGA 2023; 8:333-345. [PMID: 36643508 PMCID: PMC9835630 DOI: 10.1021/acsomega.2c04545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 11/10/2022] [Indexed: 06/17/2023]
Abstract
Herein, a novel and environmentally benign solid catalyst was fabricated by grafting WO3 active species onto the ZnCo2O4@CeO2 support for efficient levulinic acid production from corncob waste biomass. The morphological, compositional, and textural properties of the designed catalyst were investigated using different characterization techniques to identify suitable catalyst formulation with enhanced catalytic activity and stability. The results demonstrated that WO3 active species were successfully loaded with uniform distribution onto the support to develop a robust catalyst with both acidic and basic sites. The experimental investigation showed that among the catalysts, WO3(10 wt %)/ZnCo2O4@CeO2 exhibited the best catalytic activity, providing a maximum levulinic acid yield of 78.49% at the optimal conditions of 6 wt % catalyst dosage, reaction temperature of 180 °C, and reaction time of 200 min. The presence of an optimum number of both acid and base active sites on the catalyst surface could lead to the highest catalytic activity of the synthesized catalyst. Finally, the reusability investigation indicated that the synthesized catalyst possessed sufficient recyclability of up to four times for the levulinic acid production from the selected biomass with negligible drop in the catalytic activity.
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Affiliation(s)
- Fouzia Perveen
- National
Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar25120, Khyber Pakhtunkhwa, Pakistan
| | - Muhammad Farooq
- National
Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar25120, Khyber Pakhtunkhwa, Pakistan
| | - Anita Ramli
- Department
of Fundamental and Applied Sciences, Universiti
Teknologi PETRONAS, Tronoh31750, Malaysia
| | - Abdul Naeem
- National
Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar25120, Khyber Pakhtunkhwa, Pakistan
| | - Ihtisham Wali khan
- National
Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar25120, Khyber Pakhtunkhwa, Pakistan
| | - Tooba Saeed
- National
Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar25120, Khyber Pakhtunkhwa, Pakistan
| | - Jehangeer khan
- National
Centre of Excellence in Physical Chemistry, University of Peshawar, Peshawar25120, Khyber Pakhtunkhwa, Pakistan
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Perveen F, Farooq M, Naeem A, Humayun M, Saeed T, Khan IW, Abid G. Catalytic conversion of agricultural waste biomass into valued chemical using bifunctional heterogeneous catalyst: A sustainable approach. CATAL COMMUN 2022. [DOI: 10.1016/j.catcom.2022.106516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Cycloaddition of epoxides and CO2 catalyzed by C2-symmetric cobaltoporphyrins: Structural effects and a kinetic study. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2022.102242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Wang C, Jiu H, Zhang L, Song W, Zhang Y, Wei H, Xu Q, Qin Y, Che S, Guo Z. Heterostructured ZnCo 2O 4-CoOOH nanosheets on Ni foam for a high performance bifunctional alkaline water splitting catalyst. Dalton Trans 2022; 51:10061-10068. [PMID: 35726895 DOI: 10.1039/d2dt00641c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
It is of utmost importance to explore bifunctional electrocatalysts for water splitting. Herein, unique ZnCo2O4-CoOOH heterostructured ultrathin nanosheets on Ni foam are reported that combines a two-step hydrothermal method. This catalyst exhibits excellent catalytic performances to achieve a current density of 10 mA cm-2 with an ultralow overpotential of 115 mV for HER, attaining an overpotential of 238 mV at 20 mA cm-2 for OER. Remarkably, ZnCo2O4-CoOOH/Ni shows a voltage of 1.494 V to drive a current density of 10 mA cm-2. Such performances are due to the inter-penetrative pores present in the ultrathin nanosheets that provide large surface areas and expose massive active sites to enhance activities. In addition, the unique nanosheet structure and the 3D Ni foam substrate possess large specific surface areas, which can facilitate mass diffusion. This excellent performance is ascribed to the ZnCo2O4-CoOOH heterostructure that manipulates strong synergy to improve the electrochemical activity. This study offers new insight on an innovative approach for the exploitation of effective bifunctional electrocatalysts with a heterostructure.
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Affiliation(s)
- Congli Wang
- School of Science, North University of China, Taiyuan, 030051, People's Republic of China.
| | - Hongfang Jiu
- School of Science, North University of China, Taiyuan, 030051, People's Republic of China.
| | - Lixin Zhang
- Shanxi Key Laboratory of High Performance Battery Materials and Devices, North University of China, Taiyuan, 030051, People's Republic of China.,School of Chemical Engineering and Technology, North University of China, Taiyuan, 030051, People's Republic of China.
| | - Wei Song
- School of Chemical Engineering and Technology, North University of China, Taiyuan, 030051, People's Republic of China.
| | - Yufang Zhang
- School of Science, North University of China, Taiyuan, 030051, People's Republic of China.
| | - Hao Wei
- School of Science, North University of China, Taiyuan, 030051, People's Republic of China.
| | - Qianwen Xu
- School of Science, North University of China, Taiyuan, 030051, People's Republic of China.
| | - Yaqi Qin
- School of Science, North University of China, Taiyuan, 030051, People's Republic of China.
| | - Sicong Che
- School of Science, North University of China, Taiyuan, 030051, People's Republic of China.
| | - Zhixin Guo
- School of Chemical Engineering and Technology, North University of China, Taiyuan, 030051, People's Republic of China.
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