Carbon Letters最新文献_第4页

Exploring waste-derived catalysts for sustainable biodiesel production: a path towards renewable energy 探索用于可持续生物柴油生产的废物衍生催化剂：通往可再生能源之路

IF 4.5 3区材料科学

Carbon Letters Pub Date : 2024-07-17 DOI: 10.1007/s42823-024-00773-7

T. Sathish, Sivamani Selvaraju, N. Ahalya, Ashok Kumar, Abhishek Agarwal, Chander Prakash, N. Senthilkumar, V. Jagadeesha Angadi, Vinay Kumar, Abdullah A. Al-Kahtani, Elham Khalili, Hesam Kamyab, Mohammad Yusuf

{"title":"Exploring waste-derived catalysts for sustainable biodiesel production: a path towards renewable energy","authors":"T. Sathish, Sivamani Selvaraju, N. Ahalya, Ashok Kumar, Abhishek Agarwal, Chander Prakash, N. Senthilkumar, V. Jagadeesha Angadi, Vinay Kumar, Abdullah A. Al-Kahtani, Elham Khalili, Hesam Kamyab, Mohammad Yusuf","doi":"10.1007/s42823-024-00773-7","DOIUrl":"https://doi.org/10.1007/s42823-024-00773-7","url":null,"abstract":"<p>Fossil fuels have a high energy density, meaning they contain a significant amount of energy per unit of volume, making them efficient for energy production and transport. Biodiesel is especially becoming a fossil fuel alternative and a key part of renewable energy. Several types of waste from homes, markets, street vendors, and other industrial places were collected and transesterified with Ni-doped ZnO nanoparticles for this study. These included castor oil, coffee grounds, eggshells, vegetable oil, fruit peels, and soybean oil. The Ni-doped ZnO’s were then calcined at 800 °C. The maximum conversion rate found in converting fruit peel waste into biodiesel is about 87.6%, and it was 89.6% when the oil-to-methanal ratio was about 1:2 and the reaction time was 140 min. This is the maximum biodiesel production compared to other wastes. Moreover, using vegetable oil with nanocatalyst, the maximum biodiesel production rate of about 90.58% was recorded with 15% catalyst loading, which is the maximum biodiesel production compared with the other wastes with nanocatalyst. Furthermore, at 75 °C and a concentration of catalyst of about 15% the maximum biodiesel production obtained by using castor oil is about 92.8%. It has the highest biodiesel yield compared with the yield recorded from other waste. The catalyst also demonstrated great stability and reusability for the synthesis of biodiesel. Using waste fruit peels with Ni-doped ZnO helps to progress low-cost and ecologically friendly catalyst for sustainable biodiesel production.</p>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"36 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141721265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Process study of ceramic membrane treatment for water treatment residuals from lake and reservoir water purification plants in severe cold regions 严寒地区湖泊和水库净水厂水处理残留物的陶瓷膜处理工艺研究

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2024-07-12 DOI: 10.1007/s42823-024-00769-3

Tiefu Xu, Yu Huang, Wenfei Ye, Man Wang, Yuejia Chen, Hong Yang, Binqiao Ren

{"title":"Process study of ceramic membrane treatment for water treatment residuals from lake and reservoir water purification plants in severe cold regions","authors":"Tiefu Xu, Yu Huang, Wenfei Ye, Man Wang, Yuejia Chen, Hong Yang, Binqiao Ren","doi":"10.1007/s42823-024-00769-3","DOIUrl":"10.1007/s42823-024-00769-3","url":null,"abstract":"<div><p>The cost of treating water purification plant water treatment residuals is high, with a low recovery rate and unstable effluent water quality, particularly in plants using lake and reservoir water sources in severe cold regions. Maximizing water resource utilization requires integrating water treatment residuals concentration and treatment effectively. Here, ceramic membrane technology was employed to separate supernatant and substrate after pretreatment. Optimal settling was achieved using 75 μm magnetic powder at 200 and 4 mg/L of nonionic polyacrylamide co-injection. Approximately 65% of the separated supernatant was processed by 0.1–0.2 μm Al<sub>2</sub>O<sub>3</sub> ceramic membranes, yielding a membrane flux of 50 L/m<sup>2</sup>h and a water recovery rate of 99.8%. This resulted in removal rates of 99.3% for turbidity, 98.2% for color, and 87.7% for color and permanganate index (chemical oxygen demand, COD). Furthermore, 35% of the separated substrate underwent treatment with 0.1–0.2 μm mixed ceramic membranes of Al<sub>2</sub>O<sub>3</sub> and SiC, achieving a membrane flux of 40 L/m<sup>2</sup>h and a water recovery rate of 73.8%. The removal rates for turbidity, color, and COD were 99.9%, 99.9%, and 82%, respectively. Overall, this process enables comprehensive concentration and treatment integration, achieving a water recovery rate of 90.7% with safe and stable effluent water quality.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"34 9","pages":"2399 - 2410"},"PeriodicalIF":5.5,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141614759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of microcrystalline structure on compressive failure of carbon fiber 微晶结构对碳纤维压缩失效的影响

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2024-07-09 DOI: 10.1007/s42823-024-00768-4

Yang Zhang, Ruoyan Wang, Heng Zhang, Yuanjian Tong, Yu Wang

{"title":"Influence of microcrystalline structure on compressive failure of carbon fiber","authors":"Yang Zhang, Ruoyan Wang, Heng Zhang, Yuanjian Tong, Yu Wang","doi":"10.1007/s42823-024-00768-4","DOIUrl":"10.1007/s42823-024-00768-4","url":null,"abstract":"<div><p>Carbon fibers (CFs) with different tensile moduli of 280–384 GPa were applied to investigate the relationship between crystalline structure and compressive failure. The carbon chemical structure and crystalline structure were studied by Raman, high-resolution transmission electron microscopy (HRTEM) and X-ray diffraction (XRD). The correlation between compressive strength and crystalline structure was investigated. The results showed that the transition point between medium and high tensile modulus was around 310 GPa, and within the range of medium modulus, the compressive strength of CFs improved with the increase of tensile modulus, and the compressive strength also improved with the increase of crystal thickness <i>Lc</i>, crystal width <i>La</i>, and crystal plane orientation; In the high modulus range, the correlation law was opposite, which was mainly influenced by the grain boundary structure. CFs with tensile modulus lower than 310 GPa exhibited bucking and kinking fracture under compressive loading, while shear fracture was observed for CFs with tensile modulus higher than 310 GPa.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"34 9","pages":"2389 - 2398"},"PeriodicalIF":5.5,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141575054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of macrostructure of carbon support in preparation of C/Six/C anode materials for lithium-ion batteries via silane decomposition 通过硅烷分解法制备锂离子电池 C/Six/C 负极材料过程中碳载体宏观结构的影响

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2024-07-09 DOI: 10.1007/s42823-024-00756-8

Kyeong Nan Kim, Seok Chang Kang, Sang Wan Seo, Deok Jae Seo, Ji Sun Im, Soo Hong Lee, Jong Yeul Seog

{"title":"Effects of macrostructure of carbon support in preparation of C/Six/C anode materials for lithium-ion batteries via silane decomposition","authors":"Kyeong Nan Kim, Seok Chang Kang, Sang Wan Seo, Deok Jae Seo, Ji Sun Im, Soo Hong Lee, Jong Yeul Seog","doi":"10.1007/s42823-024-00756-8","DOIUrl":"10.1007/s42823-024-00756-8","url":null,"abstract":"<div><p>Si-based anodes are promising alternatives to graphite owing to their high capacities. However, their practical application is hindered by severe volume expansion during cycling. Herein, we propose employing a carbon support to address this challenge and utilize Si-based anode materials for lithium-ion batteries (LIBs). Specifically, carbon supports with various pore structures were prepared through KOH and NaOH activation of the pitch. In addition, Si was deposited into the carbon support pores via SiH<sub>4</sub> chemical vapor deposition (CVD), and to enhance the conductivity and mechanical stability, a carbon coating was applied via CH<sub>4</sub> CVD. The electrochemical performance of the C/Si/C composites was assessed, providing insights into their capacity retention rates, cycling stability, rate capability, and lithium-ion diffusion coefficients. Notably, the macrostructure of the carbon support differed significantly depending on the activation agent used. More importantly, the macrostructure of the carbon support significantly affected the Si deposition behavior and enhanced the stability by mitigating the volume expansion of the Si particles. This study elucidated the crucial role of the macrostructure of carbon supports in optimizing Si-based anode materials for LIBs, providing valuable guidance for the design and development of high-performance energy-storage systems.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"34 9","pages":"2305 - 2316"},"PeriodicalIF":5.5,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141575211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advanced modeling of conductivity in graphene–polymer nanocomposites: insights into interface and tunneling characteristics 石墨烯-聚合物纳米复合材料导电性的高级建模：洞察界面和隧道特性

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2024-07-07 DOI: 10.1007/s42823-024-00774-6

Yasser Zare, Muhammad Tajammal Munir, Kyong Yop Rhee, Soo-Jin Park

{"title":"Advanced modeling of conductivity in graphene–polymer nanocomposites: insights into interface and tunneling characteristics","authors":"Yasser Zare, Muhammad Tajammal Munir, Kyong Yop Rhee, Soo-Jin Park","doi":"10.1007/s42823-024-00774-6","DOIUrl":"10.1007/s42823-024-00774-6","url":null,"abstract":"<div><p>In this work, the depth of the interphase in graphene polymer systems is determined by the properties of graphene and interfacial parameters. Furthermore, the actual volume fraction and percolation onset of the nanosheets are characterized by the actual inverse aspect ratio, interphase depth, and tunneling distance. In addition, the dimensions of graphene, along with interfacial/interphase properties and tunneling characteristics, are utilized to develop the power-law equation for the conductivity of graphene-filled composites. Using the derived equations, the interphase depth, percolation onset, and nanocomposite conductivity are graphed against various ranges of the aforementioned factors. Moreover, numerous experimental data points for percolation onset and conductivity are presented to validate the equations. The optimal levels for interphase depth, percolation onset, and conductivity are achieved through high interfacial conductivity and large graphene nanosheets. In addition, increased nanocomposite conductivity can be attained with thinner nanosheets, a larger tunneling distance, and a thicker interphase. The calculations highlight the considerable impacts of interfacial/interphase factors and tunneling distance on the percolation onset. The highest nanocomposite conductivity of 0.008 S/m is acquired by the highest interfacial conduction of 900 S/m and graphene length (D) of 5 μm, while an insulated sample is observed at <i>D</i> < 1.2 μm. Therefore, higher interfacial conduction and larger nanosheets cause the higher nanocomposite conductivity, but the short nanosheets cannot promote the conductivity.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"34 8","pages":"2149 - 2159"},"PeriodicalIF":5.5,"publicationDate":"2024-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141575055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nanoperforated graphene hosts for stable lithium metal anodes 用于稳定锂金属阳极的纳米穿孔石墨烯主机

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2024-07-06 DOI: 10.1007/s42823-024-00775-5

Jeong-A Kim, Dong-Kyu Kim, Hyeung-Keun Shin, Sang-Won Jeong, Young-Hyun Hong, Byeong-Jun Kang, Wook Ahn, Jagadeesh Sure, Hyun-Kyung Kim

{"title":"Nanoperforated graphene hosts for stable lithium metal anodes","authors":"Jeong-A Kim, Dong-Kyu Kim, Hyeung-Keun Shin, Sang-Won Jeong, Young-Hyun Hong, Byeong-Jun Kang, Wook Ahn, Jagadeesh Sure, Hyun-Kyung Kim","doi":"10.1007/s42823-024-00775-5","DOIUrl":"10.1007/s42823-024-00775-5","url":null,"abstract":"<div><p>Graphene has been extensively investigated as a host material for Li metal anodes owing to its light weight, high electrical conductivity, high surface area, and exceptional mechanical rigidity. Many studies have focused on assembling two-dimensional (2D) graphene sheets into three-dimensional (3D) forms, such as lamination, spheres, and carbon nanotubes; however, little attention has been paid to the technology of modifying 2D graphene sheets. Herein, nanoperforated graphene (NPG) was fabricated through a relatively straightforward process employing metal oxide catalysts based on aqueous solutions. Nanoperforations exhibited a size of approximately 5 nm and were introduced on the graphene sheet and lithiophilic carbonyl groups (C = O) at the edges, facilitating the rapid diffusion of Li<sup>+</sup> and lowering the Li nucleation overpotential. In comparison to the reduced graphene oxide (RGO) host, the NPG host exhibited a lower lithium nucleation overpotential and a stable overpotential of ~ 30 mV for over 150 cycles as a stable host structure as a Li metal anode for Li metal batteries.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"34 7","pages":"2027 - 2033"},"PeriodicalIF":5.5,"publicationDate":"2024-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141575056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Plasma-engineered FeSe2-encapsulated carbon composites with enhanced kinetics for high-performance lithium and sodium ion batteries 用于高性能锂离子和钠离子电池的等离子体工程化 FeSe2-封装碳复合材料具有更强的动力学性能

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2024-07-05 DOI: 10.1007/s42823-024-00771-9

Junmei Luo, Shufeng Bo, Seohyun Park, Beom-Kyeong Park, Oi Lun Li

{"title":"Plasma-engineered FeSe2-encapsulated carbon composites with enhanced kinetics for high-performance lithium and sodium ion batteries","authors":"Junmei Luo, Shufeng Bo, Seohyun Park, Beom-Kyeong Park, Oi Lun Li","doi":"10.1007/s42823-024-00771-9","DOIUrl":"10.1007/s42823-024-00771-9","url":null,"abstract":"<div><p>Iron selenides with high capacity and excellent chemical properties have been considered as outstanding anodes for alkali metal-ion batteries. However, its further development is hindered by sluggish kinetics and fading capacity caused by volume expansion. Herein, a series of FeSe<sub>2</sub> nanoparticles (NPs)-encapsulated carbon composites were successfully synthesized by tailoring the amount of Fe species through facile plasma engineering and followed by a simple selenization transformation process. Such a stable structure can effectively mitigate volume changes and accelerate kinetics, leading to excellent electrochemical performance. The optimized electrode (FeSe<sub>2</sub>@C<sub><i>2</i></sub>) exhibits outstanding reversible capacity of 853.1 mAh g<sup>−1</sup> after 150 cycles and exceptional rate capacity of 444.9 mAh g<sup>−1</sup> at 5.0 A g<sup>−1</sup> for Li<sup>+</sup> storage. In Na<sup>+</sup> batteries, it possesses a relatively high capacity of 433.7 mAh g<sup>−1</sup> at 0.1 A g<sup>−1</sup> as well as good cycle stability. The plasma-engineered FeSe<sub>2</sub>@C<sub><i>2</i></sub> composite, which profits from synergistic effect of small FeSe<sub>2</sub> NPs and carbon framework with large specific surface area, exhibits remarkable ions/electrons transportation abilities during various kinetic analyses and unveils the energy storage mechanism dominated by surface-mediated capacitive behavior. This novel cost-efficient synthesis strategy might offer valuable guidance for developing transition metal-based composites towards energy storage materials.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"34 9","pages":"2421 - 2433"},"PeriodicalIF":5.5,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141547159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrochemical and physical adsorption properties of activated carbon with ultrahigh specific surface area using 2,9-dimethyl quinacridone (2,9-DMQA) 使用 2,9 二甲基喹吖啶酮 (2,9-DMQA) 的超高比表面积活性炭的电化学和物理吸附特性

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2024-07-04 DOI: 10.1007/s42823-024-00772-8

Taemin Ahn, Woong Kwon, Byong Chol Bai, Euigyung Jeong

{"title":"Electrochemical and physical adsorption properties of activated carbon with ultrahigh specific surface area using 2,9-dimethyl quinacridone (2,9-DMQA)","authors":"Taemin Ahn, Woong Kwon, Byong Chol Bai, Euigyung Jeong","doi":"10.1007/s42823-024-00772-8","DOIUrl":"10.1007/s42823-024-00772-8","url":null,"abstract":"<div><p>Activated carbon is generally recognized as an applicable material for gas or liquid adsorption and electrochemical devices, such as electric double-layer capacitors (EDLCs). Owing to the continuous increase in its price, research aimed at discovering alternative materials and improving its fabrication yield is important. Herein, organic pigments were ingeniously employed to enhance the fabrication of high-surface-area activated carbon with remarkable efficiency. Moreover, the focus was centered on the assessment of activated carbon derived from 2,9-dimethylquinacridone, also known as CI Pigment Red 122 for its capacity to adsorb tetracycline (TC) and its applicability as an electrode material for EDLCs. Activating these organic pigments with varying potassium hydroxide ratios allowed the fabrication of activated carbon with a higher yield than that for conventional activated carbon. Furthermore, it was confirmed that activated carbon with a very high specific surface area can be efficiently fabricated, demonstrating a remarkable potential in various application fields. Notably, this activated carbon exhibited an impressive maximum specific surface area and a total pore volume of 3,935 m<sup>2</sup>/g and 2.324 cm<sup>3</sup>/g, respectively, showcasing its substantial surface area and distinctive porous characteristics. Additionally, the Langmuir and Freundlich isotherm models were employed to examine the TC adsorption on the activated carbon, with the Langmuir model demonstrating superior suitability than the Freundlich model. Furthermore, the electrochemical performance of an activated carbon-based electrode for EDLCs was rigorously evaluated through cyclic voltammetry. The specific capacitance exhibited a considerable increase in proportion to the expanding specific surface area of the activated carbon.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"34 9","pages":"2435 - 2446"},"PeriodicalIF":5.5,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141547160","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deposition of polyaniline nanofibers on activated carbon textile for high-performance pseudocapacitors 在活性炭织物上沉积聚苯胺纳米纤维以制造高性能伪电容器

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2024-07-02 DOI: 10.1007/s42823-024-00770-w

Gyumin Kim, Hong Jun Park, Sung Tae Jang, Bong Gill Choi

{"title":"Deposition of polyaniline nanofibers on activated carbon textile for high-performance pseudocapacitors","authors":"Gyumin Kim, Hong Jun Park, Sung Tae Jang, Bong Gill Choi","doi":"10.1007/s42823-024-00770-w","DOIUrl":"10.1007/s42823-024-00770-w","url":null,"abstract":"<div><p>Despite the widespread use of polyaniline as a pseudocapacitor material, the cycling stability and rate capability of polyaniline-based electrodes are of concern because of the structural instability caused by repeated volumetric swelling and shrinking during the charge/discharge process. Herein, nanofiber-structured polyaniline was synthesized onto activated carbon textiles to ensure the long-term stability and high-rate capability of pseudocapacitors. The nanoporous structures of polyaniline nanofibers and activated textile substrate enhanced the ion and electron transfer during charge/discharge cycles. The resulting pseudocapacitor electrodes showed high gravimetric, areal, and volumetric capacitance of 769 F g<sup>−1</sup>, 2638 mF cm<sup>−2</sup>, and 845.9 F cm<sup>−3</sup>, respectively; fast charge/discharge capability of 92.6% capacitance retention at 55 mA cm<sup>−2</sup>; and good long-term stability of 97.6% capacitance retention over 2000 cycles. Moreover, a symmetric supercapacitor based on polyaniline nanofibers exhibited a high energy of 21.45 Wh cm<sup>−3</sup> at a power density of 341.2 mW cm<sup>−3</sup> in an aqueous electrolyte.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"34 9","pages":"2411 - 2419"},"PeriodicalIF":5.5,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141522498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A review on the adsorption of volatile organic compounds by biomass-based porous carbon (BPC) and its mechanism 生物质多孔碳（BPC）对挥发性有机化合物的吸附及其机理综述

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2024-07-02 DOI: 10.1007/s42823-024-00766-6

Haifan Yang, Guannan Liang, Xinyang Sun, Simiao Wu

{"title":"A review on the adsorption of volatile organic compounds by biomass-based porous carbon (BPC) and its mechanism","authors":"Haifan Yang, Guannan Liang, Xinyang Sun, Simiao Wu","doi":"10.1007/s42823-024-00766-6","DOIUrl":"10.1007/s42823-024-00766-6","url":null,"abstract":"<div><p>Volatile organic compounds (VOCs) are commonly produced in the combustion of fossil fuels and in chemical industries such as detergents and paints. VOCs in atmosphere cause different degrees of harm to human bodies and environments. Adsorption has become one of the most concerned methods to remove VOCs in atmosphere due to its high efficiency, simple operation and low energy consumption. Biomass-based porous carbon (BPC) has been considered as the most promising adsorption material because of the low cost and high absorption rate. In this paper, the key characteristic (e.g., specific surface area, pore structure, surface functional groups and basic composition) of BPC affecting the adsorption of VOCs in atmosphere were analyzed. The improvement of adsorption capacity of BPC by common modification methods, such as surface oxidation, surface reduction, surface loading and other modification methods, were discussed. Examples of BPC adsorption on different types of VOCs including aldehydes, ketones, aromatic VOCs, and halogenated hydrocarbons, were also reviewed. The specific adsorption mechanism was discussed. Finally, some unsolved problems and future research directions about BPC for adsorbing VOCs were propounded. This review can serve as a valuable reference for future developing effective biomass-based porous carbon VOCs adsorption technology.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"34 7","pages":"1851 - 1875"},"PeriodicalIF":5.5,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141509305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0