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Chen F, Liao Y, Wei S, Zhou H, Wu Y, Qing Y, Li L, Luo S, Tian C, Wu Y. Wood-inspired elastic and conductive cellulose aerogel with anisotropic tubular and multilayered structure for wearable pressure sensors and supercapacitors. Int J Biol Macromol 2023; 250:126197. [PMID: 37558032 DOI: 10.1016/j.ijbiomac.2023.126197] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 07/30/2023] [Accepted: 08/05/2023] [Indexed: 08/11/2023]
Abstract
Cellulose nanofiber (CNF) aerogels hold considerable potential in wearable devices as pressure sensors and flexible electrochemical energy storage. However, the undirectional assembly of CNFs results in poor mechanical performance, which limits their application in structural engineering. In this study, we propose an anisotropic aerogel with both elastic and conductive properties inspired by the micro-nanostructure of natural wood. One-dimensional TEMPO cellulose nanofibers (TOCNF) were utilized as structural building blocks, while two-dimensional reduced graphene oxide (rGO) served as the electron transfer platform, owing to their high mechanical strength. The directionally aligned tubular structure composed of multilayered sheets was formed through rapid unidirectional freezing and subsequent steam heating reduction. These structures efficiently transferred stress throughout the porous skeleton, resulting in TOCNF-rGO aerogels with high compressibility and excellent fatigue resistance (2000 cycles at 60 % strain). The aerogel also exhibited high sensitivity, wide detection range, relatively fast response, and excellent compression cycle stability, making it suitable for accurately detecting various human biological and motion signals. Additionally, TOCNF-rGO can be assembled into a flexible all-solid-state symmetric supercapacitor that delivers excellent electrochemical performance. It is expected that this biomass-derived aerogel will be a versatile material for flexible electronic devices for energy conversion and storage.
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Affiliation(s)
- Fabo Chen
- College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, PR China
| | - Yu Liao
- College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, PR China
| | - Song Wei
- College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, PR China
| | - Hu Zhou
- Guangdong Nanhai ETEB Technology Co., LTD, Foshan 528299, PR China
| | - Ying Wu
- College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, PR China
| | - Yan Qing
- College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, PR China.
| | - Lei Li
- College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, PR China
| | - Sha Luo
- College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, PR China
| | - Cuihua Tian
- College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, PR China
| | - Yiqiang Wu
- College of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, PR China.
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Ma X, Zhou S, Li J, Xie F, Yang H, Wang C, Fahlman BD, Li W. Natural microfibrils/regenerated cellulose-based carbon aerogel for highly efficient oil/water separation. JOURNAL OF HAZARDOUS MATERIALS 2023; 454:131397. [PMID: 37104952 DOI: 10.1016/j.jhazmat.2023.131397] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 04/01/2023] [Accepted: 04/10/2023] [Indexed: 05/19/2023]
Abstract
Cellulose-based carbon aerogels as biodegradable and renewable biomass materials have presented potential applications in oil/water separation. Herein, a novel carbon aerogel composed of natural microfibrils/regenerated cellulose (NM/RCA) was directly prepared by economical hardwood pulp as raw material using a novel co-solvent composed of deep eutectic solvent (DES) and N-methyl morpholine-N-oxide monohydrate (NMMO·H2O). In addition, the morphology and structure of the filiform natural microfibers could be remained after carbonized at 400 ℃, which resulted in a low density (8-10 mg cm-3), high specific surface area (768.89 m2 g-1) and high sorption capability. In addition, the aerogel exhibited high compressibility, outstanding elasticity, excellent fatigue resistance, and recyclability (80.5% height recovery after repeating 100 cycles at the strain of 80%). Due to the morphology and composition of the carbonized microfiber surface, the superhydrophobic materials with a water contact angle of 151.5°, could sorb various oils and organic solvents with 65-133 times its own weight and maintain 91.9% sorption capacity after 25 cycles. In addition, the aerogels could achieve the continuous separation of carbon tetrachloride (CCl4) from water with a high flux rate of 11,718.8 L m-2 h-1. Therefore, our prepared NM/RCA aerogels are anticipated to have broad potential applications in oil purification and contaminant remediation.
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Affiliation(s)
- Xiang Ma
- School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China
| | - Shuang Zhou
- School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China
| | - Junting Li
- School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China
| | - Fei Xie
- School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China
| | - Hui Yang
- Zhejiang-California International Nanosystems Institute, Zhejiang University, Hangzhou 310012, PR China
| | - Cheng Wang
- School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China
| | - Bradley D Fahlman
- Department of Chemistry & Biochemistry, Central Michigan University, Mt. Pleasant, MI 48859, USA
| | - Wenjiang Li
- School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, PR China.
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Zhang M, Xuan X, Yi X, Sun J, Wang M, Nie Y, Zhang J, Sun X. Carbon Aerogels as Electrocatalysts for Sustainable Energy Applications: Recent Developments and Prospects. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2721. [PMID: 35957152 PMCID: PMC9370447 DOI: 10.3390/nano12152721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 07/30/2022] [Accepted: 08/01/2022] [Indexed: 06/15/2023]
Abstract
Carbon aerogel (CA) based materials have multiple advantages, including high porosity, tunable molecular structures, and environmental compatibility. Increasing interest, which has focused on CAs as electrocatalysts for sustainable applications including oxygen reduction reaction (ORR), oxygen evolution reaction (OER), hydrogen evolution reaction (HER), and CO2 reduction reaction (CO2RR) has recently been raised. However, a systematic review covering the most recent progress to boost CA-based electrocatalysts for ORR/OER/HER/CO2RR is now absent. To eliminate the gap, this critical review provides a timely and comprehensive summarization of the applications, synthesis methods, and principles. Furthermore, prospects for emerging synthesis, screening, and construction methods are outlined.
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Affiliation(s)
- Minna Zhang
- Shandong Key Laboratory for Special Silicon-Containing Material, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Xiaoxu Xuan
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, China
| | - Xibin Yi
- Shandong Key Laboratory for Special Silicon-Containing Material, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Jinqiang Sun
- Shandong Key Laboratory for Special Silicon-Containing Material, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Mengjie Wang
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, China
| | - Yihao Nie
- Shandong Key Laboratory for Special Silicon-Containing Material, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Jing Zhang
- Shandong Key Laboratory for Special Silicon-Containing Material, Advanced Materials Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250014, China
| | - Xun Sun
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture, Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, China
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