New Carbon Materials最新文献

筛选
英文 中文
The production of electrodes for microsupercapacitors based on MoS2-modified reduced graphene aerogels by 3D printing 用 3D 打印技术生产基于 MoS2 改性还原石墨烯气凝胶的微型超级电容器电极
IF 5.7 3区 材料科学
New Carbon Materials Pub Date : 2024-04-01 DOI: 10.1016/S1872-5805(24)60823-1
Meng-ya Wang , Shi-you Li , Can-kun Gao , Xiao-qi Fan , Yin Quan , Xiao-hua Li , Chun-lei Li , Ning-shuang Zhang
{"title":"The production of electrodes for microsupercapacitors based on MoS2-modified reduced graphene aerogels by 3D printing","authors":"Meng-ya Wang ,&nbsp;Shi-you Li ,&nbsp;Can-kun Gao ,&nbsp;Xiao-qi Fan ,&nbsp;Yin Quan ,&nbsp;Xiao-hua Li ,&nbsp;Chun-lei Li ,&nbsp;Ning-shuang Zhang","doi":"10.1016/S1872-5805(24)60823-1","DOIUrl":"https://doi.org/10.1016/S1872-5805(24)60823-1","url":null,"abstract":"<div><p>Micro-supercapacitors (MSCs) are of interest because of their high power density and excellent cycling performance, offering a broad array of potential applications. However, preparing electrodes for the MSCs with an extremely high areal capacitance and energy density remains a challenge. We constructed MSC electrodes with an ultra-high area capacitance and a high energy density, using reduced graphene oxide aerogel (GA) and MoS<sub>2</sub> as the active materials, combined with 3D printing and surface modification. Using 3D printing, we obtained electrodes with a stable macrostructure and a GA-crosslinked micropore structure. We also used a solution method to load the surface of the printed electrode with molybdenum disulfide nanosheets, further improving the electrochemical performance. The surface capacitance of the electrode reached 3.99 F cm<sup>−2</sup>, the power density was 194 W cm<sup>−2</sup>, and the energy density was 1 997 mWh cm<sup>−2</sup>, confirming its excellent electrochemical performance and cycling stability. This work provides a simple and efficient method for preparing MSC electrodes with a high areal capacitance and energy density, making them ideal for portable electronic devices.</p></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"39 2","pages":"Pages 283-296"},"PeriodicalIF":5.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140815635","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 of graphdiyne: A new material for synthesizing effective adsorbents for aqueous contaminants 石墨二炔综述:合成水污染物有效吸附剂的新材料
IF 5.7 3区 材料科学
New Carbon Materials Pub Date : 2024-04-01 DOI: 10.1016/S1872-5805(24)60830-9
Gaurav Sharma , Yaksha Verma , Amit Kumar , Pooja Dhiman , Tong-tong Wang , Florian J. Stadler
{"title":"A review of graphdiyne: A new material for synthesizing effective adsorbents for aqueous contaminants","authors":"Gaurav Sharma ,&nbsp;Yaksha Verma ,&nbsp;Amit Kumar ,&nbsp;Pooja Dhiman ,&nbsp;Tong-tong Wang ,&nbsp;Florian J. Stadler","doi":"10.1016/S1872-5805(24)60830-9","DOIUrl":"https://doi.org/10.1016/S1872-5805(24)60830-9","url":null,"abstract":"<div><p>Graphdiyne (GDY), a new two-dimensional (2D) carbon molecule, is expected to have applications in the removal of contaminants from aqueous media. It has superior conjugation, unusual and varied electronic properties, and exceptional chemical and thermal stability because of its framework of sp and sp<sup>2</sup> hybridized carbon bonds that are combined to produce benzene rings and diacetylenic bonds in a two-dimensional symmetrical network. Its molecular chemistry is the result of it having carbon-carbon triple bonds, with a regular distribution of triangular pores in its structure, which provide reaction sites and various reaction pathways. GDY is an adsorbent with an excellent efficiency for the removal of oil, organic pollutants, dyes, and metals from contaminated water, but there is limited evidence of it being used as an adsorbent in the literature. This review discusses its synthesis and its use as an adsorbent together with its prospects for pollutant removal.</p></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"39 2","pages":"Pages 173-200"},"PeriodicalIF":5.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140815627","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
N-doped hollow carbon nanospheres embedded in N-doped graphene loaded with palladium nanoparticles as an efficient electrocatalyst for formic acid oxidation 嵌入掺杂 N 的石墨烯并负载钯纳米颗粒的 N 掺杂空心碳纳米球作为甲酸氧化的高效电催化剂
IF 5.7 3区 材料科学
New Carbon Materials Pub Date : 2024-04-01 DOI: 10.1016/S1872-5805(24)60844-9
Yue Fang , Fu-kai Yang , Wei-li Qu , Chao Deng , Zhen-bo Wang
{"title":"N-doped hollow carbon nanospheres embedded in N-doped graphene loaded with palladium nanoparticles as an efficient electrocatalyst for formic acid oxidation","authors":"Yue Fang ,&nbsp;Fu-kai Yang ,&nbsp;Wei-li Qu ,&nbsp;Chao Deng ,&nbsp;Zhen-bo Wang","doi":"10.1016/S1872-5805(24)60844-9","DOIUrl":"https://doi.org/10.1016/S1872-5805(24)60844-9","url":null,"abstract":"<div><p>Efficient electrocatalysts with a low cost, high activity and good durability play a crucial role in the use of direct formic acid fuel cells. Pd nanoparticles supported on N-doped hollow carbon nanospheres (NHCNs) embedded in an assembly of N-doped graphene (NG) with a three-dimensional (3D) porous structure by a simple and economical method were investigated as direct formic acid fuel cell catalysts. Because of the unique porous configuration of interconnected layers doped with nitrogen atoms, the Pd/NHCN@NG catalyst with Pd nanoparticles has a large catalytic active surface area, superior electrocatalytic activity, a high steady-state current density, and a strong resistance to CO poisoning, far surpassing those of conventional Pd/C, Pd/NG, and Pd/NHCN catalysts for formic acid electrooxidation. When the HCN/GO mass ratio was 1:1, the Pd/NHCN@NG catalyst had an outstanding performance in the catalytic oxidation of formic acid, with an activity 4.21 times that of Pd/C. This work indicates a way to produce superior carbon-based support materials for electrocatalysts, which will be beneficial for the development of fuel cells.</p></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"39 2","pages":"Pages 321-333"},"PeriodicalIF":5.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140815648","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
Polyimide-assisted fabrication of highly oriented graphene-based all-carbon foams for increasing the thermal conductivity of polymer composites 聚酰亚胺辅助制造高取向石墨烯基全碳泡沫,提高聚合物复合材料的热导率
IF 5.7 3区 材料科学
New Carbon Materials Pub Date : 2024-04-01 DOI: 10.1016/S1872-5805(24)60835-8
Ke Xiong , Zhi-peng Sun , Ji-chen Hu , Cheng Ma , Ji-tong Wang , Xiang Ge , Wen-ming Qiao , Li-cheng Ling
{"title":"Polyimide-assisted fabrication of highly oriented graphene-based all-carbon foams for increasing the thermal conductivity of polymer composites","authors":"Ke Xiong ,&nbsp;Zhi-peng Sun ,&nbsp;Ji-chen Hu ,&nbsp;Cheng Ma ,&nbsp;Ji-tong Wang ,&nbsp;Xiang Ge ,&nbsp;Wen-ming Qiao ,&nbsp;Li-cheng Ling","doi":"10.1016/S1872-5805(24)60835-8","DOIUrl":"https://doi.org/10.1016/S1872-5805(24)60835-8","url":null,"abstract":"<div><p>Graphene and its derivatives are often preferentially oriented horizontally during processing because of their two-dimensional (2D) layer structure. As a result, thermal interface materials (TIMs) composed of a polymer matrix and graphene-derived fillers often have a high in-plane (IP) thermal conductivity (<em>K</em>), however, the low through-plane (TP) <em>K</em> makes them unsuitable for practical use. We report the development of high-quality polyimide/graphite nanosheets (PG) perpendicular to the plane using a directional freezing technique that increase the TP <em>K</em> of polymer-based composites. Graphene-derived nanosheets (GNs) were obtained by the crushing of scraps of highly thermally conductive graphene films. A water-soluble polyamic acid salt solution was used to disperse the hydrophobic GNs filler to achieve directional freezing. The polyimide, which facilitated the directional alignment of the GNs, was then graphitized. The introduction of the GNs increases the order and density of the PG, thus improving the strength and heat transfer performance of its polydimethylsiloxane (PDMS) composite. The obtained PG/PDMS composite (21.1% PG, mass fraction) has an impressive TP <em>K</em> of 14.56 W·m<sup>−1</sup>·K<sup>−1</sup>, 81 times that of pure PDMS. This simple polyimide-assisted 2D hydrophobic fillers alignment method provides ideas for the widespread fabrication of anisotropic TIMs and enables the reuse of scraps of graphene films.</p></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"39 2","pages":"Pages 271-282"},"PeriodicalIF":5.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140815634","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 highly efficient absorptive and catalytic self-supporting Fe2O3/CC host for high performance Li-S batteries 用于高性能锂-S 电池的高效吸收和催化自支撑 Fe2O3/CC 主材料
IF 5.7 3区 材料科学
New Carbon Materials Pub Date : 2024-04-01 DOI: 10.1016/S1872-5805(24)60825-5
Zhen Tian , Lei-lei Xue , Hong-yuan Ding
{"title":"A highly efficient absorptive and catalytic self-supporting Fe2O3/CC host for high performance Li-S batteries","authors":"Zhen Tian ,&nbsp;Lei-lei Xue ,&nbsp;Hong-yuan Ding","doi":"10.1016/S1872-5805(24)60825-5","DOIUrl":"https://doi.org/10.1016/S1872-5805(24)60825-5","url":null,"abstract":"<div><p>The lithium-sulfur (Li-S) battery is a promising energy storage system because of its high energy density and low cost. However, the shuttling of lithium polysulfides (LiPSs) and low conductivity of the S cathode are barriers to its practical application. Fe<sub>2</sub>O<sub>3</sub> nanorods were grown on a carbon cloth (Fe<sub>2</sub>O<sub>3</sub>/CC) by a solvothermal reaction and calcination to obtain a cathode for the battery. The mesoporous structure of the Fe<sub>2</sub>O<sub>3</sub> and the CC conducting network facilitates lithium-ion and electron transport. Meanwhile, the nanorod arrangement results in the exposure of more Fe<sub>2</sub>O<sub>3</sub> active sites, which improves the adsorption and rapid conversion of LiPSs. As a result, a Li–S cell using a Fe<sub>2</sub>O<sub>3</sub>/CC cathode has a high capacity of 1 250 mAh g<sup>−1</sup> at 0.1 C with an excellent life of over 100 cycles with a capacity retention of 67%. It also has a 70% capacity retention after 1 000 cycles at 0.2 C. The excellent electrochemical performance of the Fe<sub>2</sub>O<sub>3</sub>/CC cathode indicates its potential applications in Li-S batteries.</p></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"39 2","pages":"Pages 345-353"},"PeriodicalIF":5.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140815500","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
The oxidation reaction mechanism and its kinetics for a carbonaceous precursor prepared from ethylene tar for use as an anode material for lithium-ion batteries 乙烯焦油制备的碳质前驱体用作锂离子电池负极材料的氧化反应机理及其动力学研究
IF 5.7 3区 材料科学
New Carbon Materials Pub Date : 2024-04-01 DOI: 10.1016/S1872-5805(22)60597-3
Tian-rui Guo, Rong-qi Chen, Wei Gao, Yan-li Wang, Liang Zhan
{"title":"The oxidation reaction mechanism and its kinetics for a carbonaceous precursor prepared from ethylene tar for use as an anode material for lithium-ion batteries","authors":"Tian-rui Guo,&nbsp;Rong-qi Chen,&nbsp;Wei Gao,&nbsp;Yan-li Wang,&nbsp;Liang Zhan","doi":"10.1016/S1872-5805(22)60597-3","DOIUrl":"https://doi.org/10.1016/S1872-5805(22)60597-3","url":null,"abstract":"<div><p>The oxidation reaction mechanism and its kinetics for ethylene tar were investigated in order to obtain a suitable anode material for Li-ion batteries. The oxidation of ethylene tar was divided into 3 stages (350–550, 550–700 and 700–900 K) according to the thermogravimetric curve. To reveal the oxidation reaction mechanism, the components of the gases evolved at different stages were analyzed by mass spectrometry and infrared technology. Based on these results the reaction was divided into 4 stages (323–400, 400–605, 605–750 and 750–860 K) to perform simulation calculations of the kinetics. Using the iso-conversion method (Coats-Redfern) to analyze the linear regression rates (R2) between 17 common reaction kinetics models and experimental data, an optimum reaction kinetics model for expressing the oxidation of ethylene tar was determined and the results were as follows. (1) During oxidation, the side chains of aromatic compounds first react with oxygen to form alcohols and aldehydes, leaving peroxy-radicals on aromatic rings. Subsequently, the aromatic compounds with peroxy-radicals undergo polymerization/condensation reactions to form larger molecules. (2) A fourth-order reaction model was used to describe the first 3 stages in the oxidation process, and the activation energies are 47.33, 18.69 and 9.00 kJ·mol<sup>−1</sup> at 323–400, 400–605, 605–750 K, respectively. A three-dimensional diffusion model was applied to the fourth stage of the oxidation process, and the activation energy is 88.37 kJ·mol<sup>−1</sup> at 750–860 K. A high softening point pitch was also produced for use as a coating of the graphite anode, and after it had been applied the capacity retention after 300 cycles increased from 51.54% to 79.07%.</p></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"39 2","pages":"Pages 354-366"},"PeriodicalIF":5.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140815501","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
Improving the mechanical properties and thermal conductivity of mesophase-pitch-based carbon fibers by controlling the temperature in industrial spinning equipment 通过控制工业纺丝设备的温度改善介相间距碳纤维的机械性能和导热性能
IF 5.7 3区 材料科学
New Carbon Materials Pub Date : 2024-04-01 DOI: 10.1016/S1872-5805(24)60826-7
Gao-ming Ye , Kui Shi , Huang Wu , Dong Huang , Chong Ye , Ting OUYang , Shi-peng Zhu , Zhen Fan , Hong-bo Liu , Jin-shui Liu
{"title":"Improving the mechanical properties and thermal conductivity of mesophase-pitch-based carbon fibers by controlling the temperature in industrial spinning equipment","authors":"Gao-ming Ye ,&nbsp;Kui Shi ,&nbsp;Huang Wu ,&nbsp;Dong Huang ,&nbsp;Chong Ye ,&nbsp;Ting OUYang ,&nbsp;Shi-peng Zhu ,&nbsp;Zhen Fan ,&nbsp;Hong-bo Liu ,&nbsp;Jin-shui Liu","doi":"10.1016/S1872-5805(24)60826-7","DOIUrl":"https://doi.org/10.1016/S1872-5805(24)60826-7","url":null,"abstract":"<div><p>Mesophase-pitch-based carbon fibers (MPCFs) were prepared using industrial equipment with a constant extrusion rate of pitch while controlling the spinning temperature. The influence of spinning temperature on their microstructures, mechanical properties and thermal conductivities was investigated. SEM images of the fractured surface of MPCFs show that the graphite layers have a radiating structure at all spinning temperatures, but change from the fine-and-folded to the large-and-flat morphology when increasing the spinning temperature from 309 to 320 <sup>o</sup>C. At the same time the thermal conductivity and tensile strength of the MPCFs respectively increase from 704 W·m<sup>−1</sup>·K<sup>−1</sup> and 2.16 GPa at 309 <sup>o</sup>C to 1 078 W·m<sup>−1</sup>·K<sup>−1</sup> and 3.23 GPa at 320 <sup>o</sup>C. The lower viscosity and the weaker die-swell effect of mesophase pitch at the outlets of the spinnerets at the higher spinning temperature contribute to the improved orientation of mesophase pitch molecules in the pitch fibers, which improves the crystallite size and orientation of the MPCFs.</p></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"39 2","pages":"Pages 334-344"},"PeriodicalIF":5.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140815499","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 of the use of metal oxide/carbon composite materials to inhibit the shuttle effect in lithium-sulfur batteries 使用金属氧化物/碳复合材料抑制锂硫电池中的穿梭效应综述
IF 5.7 3区 材料科学
New Carbon Materials Pub Date : 2024-04-01 DOI: 10.1016/S1872-5805(24)60838-3
Zhi-qiang Zhou, Hui-min Wang, Lu-bin Yang, Cheng Ma, Ji-tong Wang, Wen-ming Qiao, Li-cheng Ling
{"title":"A review of the use of metal oxide/carbon composite materials to inhibit the shuttle effect in lithium-sulfur batteries","authors":"Zhi-qiang Zhou,&nbsp;Hui-min Wang,&nbsp;Lu-bin Yang,&nbsp;Cheng Ma,&nbsp;Ji-tong Wang,&nbsp;Wen-ming Qiao,&nbsp;Li-cheng Ling","doi":"10.1016/S1872-5805(24)60838-3","DOIUrl":"https://doi.org/10.1016/S1872-5805(24)60838-3","url":null,"abstract":"<div><p>Lithium-sulfur (Li-S) batteries are among the most promising next-generation electrochemical energy-storage systems due to their exceptional theoretical specific capacity, inexpensive production cost and environmental friendliness. However, the poor conductivity of S and Li<sub>2</sub>S, severe lithium polysulfide (LiPS) shuttling and the sluggish redox kinetics of the phase transformation greatly hinder their commercialization. Carbonaceous materials could be potentially useful in Li-S batteries to tackle these problems with their high specific surface area to host LiPSs and sulfur and excellent electrical conductivity to increase electron transfer rate. However, non-polar carbon materials are unable to interact closely with the highly polar polysulfides, resulting in a low sulfur utilization and a serious shuttle effect. Because of their advantages of strong polarity and a large number of adsorption sites, integrating transition metal oxides (TMOs) with carbon-based materials (CMs) increases the chemical adsorption of LiPSs and electrochemical reaction activity for LiPSs. The working principles and main challenges of Li-S batteries are discussed followed by a review of recent research on the ex-situ and in-situ synthesis of TMO/CM composites. The formation of TMO/CMs with the dimensionalities of CMs from 1D to 3D are then reviewed together with ways of changing their structure, including heterostructure design, vacancy engineering and facet manipulation. Finally, the outlook for using TMO/CMs in Li-S batteries is considered.</p></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"39 2","pages":"Pages 201-220"},"PeriodicalIF":5.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140815628","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
Carbon electrodes for the electrocatalytic synthesis of hydrogen peroxide: A review 用于过氧化氢电催化合成的碳电极:综述
IF 5.7 3区 材料科学
New Carbon Materials Pub Date : 2024-04-01 DOI: 10.1016/S1872-5805(24)60846-2
Xian-huai Huang , Xin-ke Yang , Ling Gui , Shao-gen Liu , Kun Wang , Hong-wei Rong , Wei Wei
{"title":"Carbon electrodes for the electrocatalytic synthesis of hydrogen peroxide: A review","authors":"Xian-huai Huang ,&nbsp;Xin-ke Yang ,&nbsp;Ling Gui ,&nbsp;Shao-gen Liu ,&nbsp;Kun Wang ,&nbsp;Hong-wei Rong ,&nbsp;Wei Wei","doi":"10.1016/S1872-5805(24)60846-2","DOIUrl":"https://doi.org/10.1016/S1872-5805(24)60846-2","url":null,"abstract":"<div><p>Electrocatalytic oxygen reduction by a 2e<sup>−</sup> pathway enables the instantaneous synthesis of H<sub>2</sub>O<sub>2</sub>, a process that is far superior to the conventional anthraquinone process. In recent years, the electrocatalytic synthesis of H<sub>2</sub>O<sub>2</sub> using carbon electrodes has attracted more and more attention because of its excellent catalytic performance and superior stability. The relationship between material modification, wettability and the rate of H<sub>2</sub>O<sub>2</sub> synthesis and service life is considered together with the three-phase interface. The structure of the carbon electrodes and the principles of electrocatalytic H<sub>2</sub>O<sub>2</sub> synthesis are first introduced, and four major catalysts are reviewed, namely, monolithic carbon materials, metal-free catalysts, noble metal catalysts and non-precious metal catalysts. The effects of the metal anode and the electrolyte on the three-phase interface are described. The relationship between carbon electrode wettability and the three-phase interface is described, pointing out that modification focusing on improving the selectivity of the 2e<sup>−</sup> pathway can also impact electrode wettability. In addition, the relationship between the design of the components in the electrochemical system and their effect on the efficiency of H<sub>2</sub>O<sub>2</sub> synthesis is discussed for carbon electrodes. Finally, we present our analysis of the current problems in the electrocatalytic synthesis of H<sub>2</sub>O<sub>2</sub> for carbon electrodes and future research directions.</p></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"39 2","pages":"Pages 254-270"},"PeriodicalIF":5.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140815633","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
N, S co-doped coal-based hard carbon prepared by two-step carbonization and a molten salt template method for sodium storage 通过两步碳化和熔盐模板法制备的 N、S 共掺煤基硬质碳用于钠储存
IF 5.7 3区 材料科学
New Carbon Materials Pub Date : 2024-04-01 DOI: 10.1016/S1872-5805(24)60842-5
Hui-zhu Niu , Hai-hua Wang , Li-yu Sun , Chen-rong Yang , Yu Wang , Rui Cao , Cun-guo Yang , Jie Wang , Ke-wei Shu
{"title":"N, S co-doped coal-based hard carbon prepared by two-step carbonization and a molten salt template method for sodium storage","authors":"Hui-zhu Niu ,&nbsp;Hai-hua Wang ,&nbsp;Li-yu Sun ,&nbsp;Chen-rong Yang ,&nbsp;Yu Wang ,&nbsp;Rui Cao ,&nbsp;Cun-guo Yang ,&nbsp;Jie Wang ,&nbsp;Ke-wei Shu","doi":"10.1016/S1872-5805(24)60842-5","DOIUrl":"https://doi.org/10.1016/S1872-5805(24)60842-5","url":null,"abstract":"<div><p>Hard carbon, known for its abundant resources, stable structure and high safety, has emerged as the most popular anode material for sodium-ion batteries (SIBs). Among various sources, coal-derived hard carbon has attracted extensive attention. In this work, N and S co-doped coal-based carbon material (NSPC1200) was synthesized through a combination of two-step carbonization process and heteroatom doping using long-flame coal as a carbon source, thiourea as a nitrogen and sulfur source, and NaCl as a template. The two-step carbonization process played a crucial role in adjusting the structure of carbon microcrystals and expanding the interlayer spacing. The N and S co-doping regulated the electronic structure of carbon materials, endowing more active sites. Additionally, the introduction of NaCl as a template contributed to the construction of pore structure, which facilitates better contact between electrodes and electrolytes, enabling more efficient transport of Na<sup>+</sup> and electrons. Under the synergistic effect, NSPC1200 exhibited exceptional sodium storage capacity, reaching 314.2 mAh g<sup>-1</sup> at 20 mA g<sup>-1</sup>. Furthermore, NSPC1200 demonstrated commendable cycling stability, maintaining a capacity of 224.4 mAh g<sup>-1</sup> even after 200 cycles. This work successfully achieves the strategic tuning of the microstructure of coal-based carbon materials, ultimately obtaining hard carbon anode with excellent electrochemical performance.</p></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"39 2","pages":"Pages 297-307"},"PeriodicalIF":5.7,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140815646","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
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信