1
|
Nallapureddy J, Sreekanth TVM, Pallavolu MR, Srinivasa Babu PS, Nallapureddy RR, Jung JH, Joo SW. Strategic Way of Synthesizing Heteroatom-Doped Carbon Nano-onions Using Waste Chicken Fat Oil for Energy Storage Devices. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38655915 DOI: 10.1021/acsami.4c02753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
An easy way of synthesizing low-cost carbon nanomaterials without the need for high-temperature processing approach is critical for energy storage applications because the demand has increased for affordable, long-term, and environmentally friendly synthesized carbon-based materials. Herein, we synthesized multilayered graphitic carbon nano-onions (CNOs) using an oil-wick flame pyrolysis approach, employing biowaste (chicken fat) oil as a cost-effective precursor. The prepared CNOs can provide enhanced ion movement and less resistance for electron transport by interconnecting CNO particles with one another. Furthermore, heteroatom (S,N)-doped CNOs (h-CNOs) were synthesized to optimize the hydrophilic and conductive properties of carbon materials, which eventually exalted the capacitive charge transfer kinetics. The h-CNOs demonstrated superior, highest specific capacitance of 261 F/g, while the undoped CNOs showed a capacitance of 180.6 F/g at a current density of 1 A/g. In addition to capacitance, the h-CNOs also demonstrated a rate capability of 69% and a good cycling stability of 97.5% under high current densities. An asymmetric supercapacitor was fabricated using the h-CNOs as the negative and MnCo2S4 (MCS) as the positive electrode. The device showed high energy and power performance of 32.8 Wh/kg and 7350 W/kg, respectively, with a capacitance retention of 97% over 5000 cycles. Considering the facile strategic way to produce novel carbonaceous materials derived from biowaste oil (chicken fat oil), this could be considered a potential advantage for commercial energy storage devices and may open the door to producing inexpensive, industrially revolutionizing energy storage devices.
Collapse
Affiliation(s)
- Jyothi Nallapureddy
- School of Mechanical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | | | - Mohan Reddy Pallavolu
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - P S Srinivasa Babu
- Center for Flexible Electronics, Department of Electronics and Communication Engineering, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Andhra Pradesh 522302, India
| | | | - Jae Hak Jung
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Sang Woo Joo
- School of Mechanical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| |
Collapse
|
2
|
Li Y, Liu X, Guo Q. Adsorption Mechanisms of CO 2 on Macroporous Ion-Exchange Resin Organic Amine Composite Materials by the Density Functional Theory. ACS OMEGA 2024; 9:17541-17550. [PMID: 38645365 PMCID: PMC11025073 DOI: 10.1021/acsomega.4c00587] [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: 01/18/2024] [Revised: 03/04/2024] [Accepted: 03/28/2024] [Indexed: 04/23/2024]
Abstract
The adsorption mechanisms of CO2 on macroporous cation exchange resin (MCER), D001 ion-exchange resin, and macroporous ion-exchange resin organic amine composite materials (MCER-DEA and D001-PEI) were studied by density functional theory (DFT). The adsorption energies and Mulliken atomic charges in the adsorption process were analyzed, indicating that CO2 on MCER and D001 were physisorbed. The adsorption heat of the adsorption process of MCER-DEA and D001-PEI was calculated by the Monte Carlo method, and it was found that the adsorption process of CO2 by MCER-DEA and D001-PEI was both physical adsorption and chemical adsorption. Besides, the chemical adsorption mechanism of CO2 by MCER-DEA and D001-PEI was investigated by analyzing the free energy barrier and the Gibbs free energy change of the involved chemical reactions and the results showed that the free energy barrier required for MCER-DEA to generate zwitterion was 26.23 kcal/mol, which is 1.74 times that of D001-PEI (15.04 kcal/mol); meanwhile, the free energy barriers of the deprotonation process of zwitterions in MCER-DEA and D001-PEI were 16.23 and 9.89 kcal/mol, respectively, indicating that D001-PEI chemically adsorbs CO2 and requires more energy than MCER-DEA chemical adsorption of CO2. D001-PEI is more conducive to the chemical adsorption of CO2. In addition, H2O molecules were incorporated on the polymer models to study the influence of humidity on the CO2 adsorption mechanism. The analysis revealed that the adsorption of CO2 slowed under humid conditions.
Collapse
Affiliation(s)
- Yan Li
- State Key Laboratory Base
of Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Xinmin Liu
- State Key Laboratory Base
of Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Qingjie Guo
- State Key Laboratory Base
of Eco-Chemical Engineering in College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| |
Collapse
|
3
|
Wang Y, Tang X, XinWei, Gao S, Jiang L, Yi Y. Study of CO 2 adsorption on carbon aerogel fibers prepared by electrospinning. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 349:119432. [PMID: 37948959 DOI: 10.1016/j.jenvman.2023.119432] [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: 07/25/2023] [Revised: 09/25/2023] [Accepted: 10/20/2023] [Indexed: 11/12/2023]
Abstract
The exacerbation of climate change has made the development of alternative and sustainable technologies to achieve carbon neutrality an urgent matter. The intricate preparation and arduous recovery of conventionally prepared CO2 solid adsorbents make their large-scale application a significant challenge, which significantly limits the application of the adsorbent. To address this problem, we have innovatively adopted a novel strategy of electrospinning and one-step carbonization to fabricate microporous carbon aerogel fibers (CAFs) as solid adsorbents for CO2. This method offers the advantages of a simple process, cost-effectiveness, and stable performance. The designed CAFs possess a high specific surface area (1188.628 m2/g), an appropriate distribution of pore size (0.54-0.64 nm), and about 15 at% oxygen-containing functional groups without activation or doping. At 0 °C, the CAFs-800 (800 is the carbonization temperature) exhibit a maximum capture capacity of 4.25 mmol/g, and after 5 times cycles, the adsorption capacity remains above 97%; at 25 °C, the maximum capture capacity reaches 3.57 mmol/g of CAFs-800, surpassing similar materials by more than 20%, demonstrating excellent adsorption capacity and stability towards CO2. These results indicate that the CAFs hold great promise for CO2 capture and storage with exceptional advantages.
Collapse
Affiliation(s)
- Yiyang Wang
- State Key Laboratory for Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, PR China
| | - Xiaodi Tang
- State Key Laboratory for Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, PR China
| | - XinWei
- State Key Laboratory for Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, PR China
| | - Shijie Gao
- State Key Laboratory for Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, PR China
| | - Lili Jiang
- State Key Laboratory for Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, PR China
| | - Yong Yi
- State Key Laboratory for Environment-Friendly Energy Materials, School of Materials and Chemistry, Southwest University of Science and Technology, Mianyang, 621010, PR China.
| |
Collapse
|
4
|
Guo Q, Zhao Y, Lei Y, Li G, He Y, Zhang G, Zhang Y, Li K. Tuning Lignite Structure via Hydromodification To Promote the Formation of Coal-Based CNTs: Exploration for the Carbon Source of CNTs. ACS OMEGA 2023; 8:25938-25950. [PMID: 37521664 PMCID: PMC10373181 DOI: 10.1021/acsomega.3c01736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Accepted: 06/28/2023] [Indexed: 08/01/2023]
Abstract
Although the preparation of coal-based carbon nanotubes (CNTs) has been realized in many studies, the relationship between carbon source structure of coal and CNT growth has not been studied in depth. In this study, we used lignite and KOH as raw material and catalyst and tuned lignite structure via hydrothermal modification to promote the formation of CNTs during catalytic pyrolysis. The main carbon source of CNTs was explored from the change of coal structure and pyrolysis characteristics. The results indicate that the CNT yield of lignite pyrolysis products is only 2.39%, but the CNT yield increases significantly after lignite was hydrothermally modified in a subcritical water-CO system. The graphitization degree, the order degree, and CNT content increase continuously with the increase in modification temperature, and C-M340 has the highest CNT content of 9.41%. Hydromodification promotes the rearrangement of aromatic carbon structures to generate more condensed aromatic rings linked by short aliphatic chains and aromatic ether bonds. The variation of these structures correlates well with the formation of CNTs and leads to the change in the carbon source components released during coal pyrolysis. Compared to lignite, modified coal releases more aromatic compounds, especially polycyclic aromatic hydrocarbons with ≥3 rings and phenols during catalytic pyrolysis, which is conducive to the transformation into carbon clusters and provides carbon sources for CNT growth. In addition, modified coal releases a slightly more carbon-containing gas (CH4 and CO) than lignite, which has a limited effect on the growth of CNTs. This study provides a novel and efficient method for enhancing the growth of CNTs by a molecular tailoring strategy of coal.
Collapse
Affiliation(s)
- Qingxiang Guo
- State
Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
- Key
Laboratory of Coal Science and Technology, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Yuqiong Zhao
- State
Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
- Key
Laboratory of Coal Science and Technology, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
- Shanxi
Huaxin Gas Energy Research Institute Co., Ltd., Taiyuan 030032, Shanxi, China
| | - Yaning Lei
- State
Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
- Key
Laboratory of Coal Science and Technology, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Guoqiang Li
- State
Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
- Key
Laboratory of Coal Science and Technology, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Yajun He
- State
Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
- Key
Laboratory of Coal Science and Technology, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Guojie Zhang
- State
Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
- Key
Laboratory of Coal Science and Technology, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Yongfa Zhang
- State
Key Laboratory of Clean and Efficient Coal Utilization, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
- Key
Laboratory of Coal Science and Technology, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Kunjie Li
- Shanxi
Huaxin Gas Energy Research Institute Co., Ltd., Taiyuan 030032, Shanxi, China
| |
Collapse
|
5
|
Lamiel CSJ, Afroz MM, Cincotta RE, Krödel M, Li-Oakey KD. Experimental and Molecular Dynamic Modeling Studies of Electrospun Carbon Fiber Electrode Performance Enhancement by Potassium Ferricyanide Addition. Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.142076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
|
6
|
A novel one-step calcination tailored single-atom iron and nitrogen co-doped carbon material catalyst for the selective reduction of CO2 to CO. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
7
|
Lee BM, Chang HS, Moon Yun J, Choi JH. Enhancement of supercapacitive performance of carboxymethyl cellulose-derived porous carbon monoliths by the addition of carbon nanotubes. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.118415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
8
|
Micro-meso porous biocarbons derived from a typical biopolymer with superior adsorption capacity for methylene blue dye and high-performance supercapacitors. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
9
|
Alenezi GT, Rajendran N, Abdel Nazeer A, Makhseed S. Development of Uniform Porous Carbons From Polycarbazole Phthalonitriles as Durable CO2 Adsorbent and Supercapacitor Electrodes. Front Chem 2022; 10:879815. [PMID: 35548674 PMCID: PMC9081769 DOI: 10.3389/fchem.2022.879815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 03/24/2022] [Indexed: 11/13/2022] Open
Abstract
Advances in new porous materials have recognized great consideration in CO2 capture and electrochemical energy storage (EES) applications. In this study, we reported a synthesis of two nitrogen-enriched KOH-activated porous carbons prepared from polycarbazole phthalonitrile networks through direct pyrolysis protocol. The highest specific surface area of the carbon material prepared by pyrolysis of p-4CzPN polymer reaches 1,279 m2 g−1. Due to the highly rigid and reticular structure of the precursor, the obtained c-4CzPN–KOH carbon material exhibits high surface area, uniform porosity, and shows excellent CO2 capture performance of 19.5 wt% at 0°C. Moreover, the attained porous carbon c-4CzPN–KOH showed high energy storage capacities of up to 451 F g−1 in aqueous electrolytes containing 6.0 M KOH at a current density of 1 A g-1. The prepared carbon material also exhibits excellent charge/discharge cycle stability and retains 95.9% capacity after 2000 cycles, indicating promising electrode materials for supercapacitors.
Collapse
Affiliation(s)
| | - Narendran Rajendran
- Department of Chemistry, Faculty of Science, Kuwait University, Kuwait City, Kuwait
| | - Ahmed Abdel Nazeer
- Petroleum Refining and Petrochemicals Research Center, College of Engineering and Petroleum, Kuwait University, Kuwait City, Kuwait
| | - Saad Makhseed
- Department of Chemistry, Faculty of Science, Kuwait University, Kuwait City, Kuwait
- *Correspondence: Saad Makhseed,
| |
Collapse
|
10
|
Gao J, Xing Z, Zhou J, Xu H, Wang Z, Li G, Yu L. Electrostatic interaction-controlled dispersion of carbon nanotubes in a ternary composite for high-performance supercapacitors. Dalton Trans 2022; 51:5127-5137. [PMID: 35266495 DOI: 10.1039/d2dt00125j] [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
Effective dispersion of carbon nanotubes (CNTs) is of great importance to achieve their intrinsic performance. Normally, it is believed that CNT dispersion is decided by interactions between CNTs and their dispersants, while other interactions are often neglected. Herein, three ionic surfactants, sodium dodecyl sulfate (SDS), dodecyl dimethyl betaine (BS-12) and cetyltrimethylammonium bromide (CTAB), are used to disperse CNTs in a ternary composite, i.e., poly(p-phenylenediamine)-phosphomolybdic acid@reduced graphene oxide (DMoG), respectively, leading to three different DMoGC composites. It has been found that the CNT dispersion in DMoGC was mainly controlled by electrostatic interactions between the surfactants and DMoG, which further exerted vital influences on the constitution, content, morphology, porous structure and supercapacitive performance of the DMoGC composites. Among the three surfactants, cationic CTAB showed the best CNT dispersion, while amphoteric BS-12 could hardly disperse CNTs in DMoGC, leading to DMoGC-CTAB with a 2 times larger specific surface area (152.3 m2 g-1) and 1.5 times higher specific capacitance (422 F g-1) than those of DMoGC-(BS-12). Our study can provide valuable guidelines for selecting/designing effective dispersants to prepare multi-component composites containing uniformly dispersed CNTs.
Collapse
Affiliation(s)
- Jing Gao
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China.
| | - Zhengyang Xing
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China.
| | - Junxi Zhou
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China.
| | - Haolan Xu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China.
| | - Zhimin Wang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China.
| | - Guohua Li
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, P. R. China.
| | - Lili Yu
- School of Material Science and Engineering, Shanghai University, Shanghai 200444, P. R. China.
| |
Collapse
|
11
|
Ye Y, Vega Martín L, Sánchez Montero MJ, López-Díaz D, Velázquez MM, Merchán MD. Optimizing the Properties of Hybrids Based on Graphene Oxide for Carbon Dioxide Capture. Ind Eng Chem Res 2022; 61:1332-1343. [PMID: 35110829 PMCID: PMC8796650 DOI: 10.1021/acs.iecr.1c02922] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 12/28/2021] [Accepted: 01/06/2022] [Indexed: 01/27/2023]
Abstract
The reduction of CO2 emissions and its elimination from the atmosphere has become one of the major problems worldwide, since CO2 is the main cause of the greenhouse effect and climate change. In recent years, a great number of carbonaceous materials that can be used as CO2 adsorbents have been synthesized. The strategy is usually to synthesize the materials and determine their adsorption capacity without studying previously the factors that influence this capacity. In this work, different properties of the adsorbents are analyzed to study their influence on the CO2 adsorption capacity. For this purpose, 10 adsorbents have been synthesized using different strategies and characterized with X-ray photoelectron spectroscopy, X-ray diffraction, and micro-Raman spectroscopy. The percentage of sp2 carbons, the position of the D + D' peak of the second-order Raman spectrum, the micropore volume, and the grain size of the C sp2 domains have been related to the amount of CO2 adsorbed by the adsorbents. The results confirm a linear relationship between the volume of the micropores and the CO2 uptake and it proves that CO2 retention is favored in those materials that, in addition to having a high volume of micropores, also have low grain size of C.
Collapse
Affiliation(s)
- Yating Ye
- Departamento
de Química Física, Facultad de Ciencias Químicas, Universidad de Salamanca, E-37008 Salamanca, Spain
| | - L. Vega Martín
- Departamento
de Química Física, Facultad de Ciencias Químicas, Universidad de Salamanca, E-37008 Salamanca, Spain
| | - M. J. Sánchez Montero
- Departamento
de Química Física, Facultad de Ciencias Químicas, Universidad de Salamanca, E-37008 Salamanca, Spain
- Grupo
de Nanotecnología, Universidad de
Salamanca, E37008 Salamanca, Spain
- Laboratorio
de Nanoelectrónica y Nanomateriales, USAL-NANOLAB, Universidad de Salamanca, E37008 Salamanca, Spain
| | - D. López-Díaz
- Departamento
de Química Física, Facultad de Ciencias Químicas, Universidad de Salamanca, E-37008 Salamanca, Spain
- Departamento
de Química Analítica, Química Física e
Ingeniería Química, Universidad
de Alcalá. 28871 Alcalá de Henares, Madrid, Spain
| | - M. M. Velázquez
- Departamento
de Química Física, Facultad de Ciencias Químicas, Universidad de Salamanca, E-37008 Salamanca, Spain
- Grupo
de Nanotecnología, Universidad de
Salamanca, E37008 Salamanca, Spain
- Laboratorio
de Nanoelectrónica y Nanomateriales, USAL-NANOLAB, Universidad de Salamanca, E37008 Salamanca, Spain
| | - M. D. Merchán
- Departamento
de Química Física, Facultad de Ciencias Químicas, Universidad de Salamanca, E-37008 Salamanca, Spain
- Grupo
de Nanotecnología, Universidad de
Salamanca, E37008 Salamanca, Spain
- Laboratorio
de Nanoelectrónica y Nanomateriales, USAL-NANOLAB, Universidad de Salamanca, E37008 Salamanca, Spain
| |
Collapse
|
12
|
Tian Y, Ren Q, Chen X, Li L, Lan X. Yeast-Based Porous Carbon with Superior Electrochemical Properties. ACS OMEGA 2022; 7:654-660. [PMID: 35036731 PMCID: PMC8756604 DOI: 10.1021/acsomega.1c05278] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 12/14/2021] [Indexed: 05/09/2023]
Abstract
Biomass is a promising carbon source for supercapacitor electrode materials due to its abundant source, diversity, and low-cost. Yeast is an elliptic unicellular fungal organism that is widespread in nature. In this work, we used yeast as the carbon source and Na2SiO3 as the activator to prepare a honeycomb porous carbon with higher surface area. The yeast and Na2SiO3 were directly mixed and ground without any solvent, which is simple and characterized by large-scale application. The prepared porous carbon shows a good specific capacity of 313 F/g in 6 M KOH at a density of 0.5 A/g and an excellent rate capability of 85.9% from 0.5 to 10 A/g. The results suggest that the yeast-derived porous carbon may be a promising sustainable bio-material for the preparation of supercapacitor carbon electrode materials. This study provides an economical and practical avenue for yeast resource utilization and develops a simple approach to prepare porous carbon materials.
Collapse
Affiliation(s)
- Yuhong Tian
- School
of Chemistry and Chemical Engineering, Xi’an
University of Architecture and Technology, Xi’an 710055, China
| | - Qiaoxia Ren
- School
of Chemistry and Chemical Engineering, Xi’an
University of Architecture and Technology, Xi’an 710055, China
| | - Xiaoyu Chen
- School
of Chemistry and Chemical Engineering, Xi’an
University of Architecture and Technology, Xi’an 710055, China
| | - Linbo Li
- School
of Metallurgical Engineering, Xi’an
University of Architecture and Technology, Xi’an 710055, China
| | - Xinzhe Lan
- Research
Centre on Metallurgical Engineering and Technology of Shaanxi Province, Xi’an 710055, China
| |
Collapse
|
13
|
Sahoo MK, Rao GR. A high energy flexible symmetric supercapacitor fabricated using N-doped activated carbon derived from palm flowers. NANOSCALE ADVANCES 2021; 3:5417-5429. [PMID: 36132632 PMCID: PMC9417211 DOI: 10.1039/d1na00261a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 08/10/2021] [Indexed: 05/07/2023]
Abstract
Nitrogen doped activated carbons of high surface area are synthesized using palm flower biomaterial by KOH activation followed by pyrolysis. The concentration of the activating agent KOH and carbonization temperature are found to be crucial to obtain high surface area activated carbon. The optimal concentration of KOH and carbonization temperature for the synthesis of activated carbon, respectively, are 2 M and 800 °C in the flow of nitrogen gas. The optimized conditions have been employed to further prepare nitrogen doped activated carbon (NAC) by varying the weight ratio of palm flowers to melamine. All activated carbons are characterized by powder XRD, BET analysis, RAMAN spectroscopy, HR-SEM analysis, HR-TEM analysis and FT-IR analysis. With 2 wt% nitrogen doping, the BET surface area and pore diameter of the NAC-2 sample are 1054 m2 g-1 and 1.9 nm, respectively. The electrochemical charge storage performance of the nitrogen doped activated carbons has been evaluated in an aqueous acidic electrolyte medium. The results indicate that among the nitrogen doped activated carbons, the NAC-2 sample exhibits the highest electrochemical capacitance of 296 F g-1 at 0.5 A g-1. The performance of the NAC-2 electrode is further tested in aqueous, ionic liquid and solid polymer electrolytes by assembling a symmetric capacitor for real time application. By employing an ionic liquid as the electrolyte, the device delivers an energy density of 8.6 Wh kg-1 and a power density of 38.9 W kg-1 in the voltage window of 1.5 V and at an operating current density of 0.1 A g-1. Interestingly, the NAC-2 electrode shows good cycling performance in the ionic liquid electrolyte (up to 50k cycles). Furthermore, the symmetric device in 0.1 M H2SO4/PVA solid state electrolyte shows excellent electrochemical stability under various bending angles, demonstrating its potential in flexible electronic devices.
Collapse
Affiliation(s)
- Malaya K Sahoo
- Department of Chemistry and DST-Solar Energy Harnessing Centre (DSEHC), Indian Institute of Technology Madras Chennai 600036 India +91 44 2257 4202 +91 44 2257 4226
| | - G Ranga Rao
- Department of Chemistry and DST-Solar Energy Harnessing Centre (DSEHC), Indian Institute of Technology Madras Chennai 600036 India +91 44 2257 4202 +91 44 2257 4226
| |
Collapse
|
14
|
Re-assembly: Construction of macropores in carbon sheets with high performance in supercapacitor. ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2021.02.030] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
15
|
Abd AA, Naji SZ, Hashim AS, Othman MR. Carbon dioxide removal through physical adsorption using carbonaceous and non-carbonaceous adsorbents: A review. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 2020; 8:104142. [DOI: 10.1016/j.jece.2020.104142] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
|