New Carbon Materials最新文献_第4页

Controlling the conductivity and microporosity of biocarbon to produce supercapacitors with battery-level energies at an ultrahigh power 控制生物碳的导电性和微孔隙度，以生产具有电池级能量的超高功率超级电容器

IF 5.7 3区材料科学

New Carbon Materials Pub Date : 2025-04-01 DOI: 10.1016/S1872-5805(25)60960-7

Bei CHENG , Xing-yan XIE , Liu WAN , Jian CHEN , Yan ZHANG , Cheng DU , Xue-feng GUO , Ming-jiang XIE

{"title":"Controlling the conductivity and microporosity of biocarbon to produce supercapacitors with battery-level energies at an ultrahigh power","authors":"Bei CHENG , Xing-yan XIE , Liu WAN , Jian CHEN , Yan ZHANG , Cheng DU , Xue-feng GUO , Ming-jiang XIE","doi":"10.1016/S1872-5805(25)60960-7","DOIUrl":"10.1016/S1872-5805(25)60960-7","url":null,"abstract":"<div><div>In order to meet the demands of new-generation electric vehicles that require high power output (over 15 kW/kg), it is crucial to increase the energy density of carbon-based supercapacitors to a level comparable to that of batteries, while maintaining a high power density. We report a porous carbon material produced by immersing poplar wood (PW) sawdust in a solution of KOH and graphene oxide (GO), followed by carbonization. The resulting material has exceptional properties as an electrode for high-energy supercapacitors. Compared to the material prepared by the direct carbonization of PW, its electrical conductivity was increased from 0.36 to 26.3 S/cm. Because of this and a high microporosity of over 80%, which provides fast electron channels and a large ion storage surface, when used as the electrodes for a symmetric supercapacitor, it gave a high energy density of 27.9 Wh/[email protected] kW/kg in an aqueous electrolyte of 1.0 mol/L Na2SO4. The device also had battery-level energy storage with maximum energy densities of 73.9 Wh/[email protected] kW/kg and 67.6 Wh/kg@40 kW/kg, an ultrahigh power density, in an organic electrolyte of 1.0 mol/L TEABF4/AN. These values are comparable to those of 30−45 Wh/kg for Pb-acid batteries and 30−55 Wh/kg for aqueous lithium batteries. This work indicates a way to prepare carbon materials that can be used in supercapacitors with ultrahigh energy and power densities.\u0000\t\t\t\t<figure><img><ol><li>Download: Download high-res image (106KB)</li><li>Download: Download full-size image</li></ol></figure></div></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"40 2","pages":"Pages 397-407"},"PeriodicalIF":5.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887577","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

Low-value biomass-derived carbon composites for electromagnetic wave absorption and shielding: A review 用于电磁波吸收和屏蔽的低价值生物质碳复合材料研究进展

IF 5.7 3区材料科学

New Carbon Materials Pub Date : 2025-04-01 DOI: 10.1016/S1872-5805(25)60965-6

Sahoo Sumanta , Kumar Rajesh , Soo Han Sung

引用次数: 0

Impact of pitch fraction oxidation on the structure and sodium storage properties of derived carbon materials 沥青馏分氧化对衍生碳材料结构和储钠性能的影响

IF 5.7 3区材料科学

New Carbon Materials Pub Date : 2025-04-01 DOI: 10.1016/S1872-5805(25)60961-9

Su-xia QI , Tao YANG , Yan SONG , Ning ZHAO , Jun-qing LIU , Xiao-dong TIAN , Jin-ru WU , Hui LI , Zhan-jun LIU

{"title":"Impact of pitch fraction oxidation on the structure and sodium storage properties of derived carbon materials","authors":"Su-xia QI , Tao YANG , Yan SONG , Ning ZHAO , Jun-qing LIU , Xiao-dong TIAN , Jin-ru WU , Hui LI , Zhan-jun LIU","doi":"10.1016/S1872-5805(25)60961-9","DOIUrl":"10.1016/S1872-5805(25)60961-9","url":null,"abstract":"<div><div>Pitch produced by the liquefaction of coal was divided into two fractions: soluble in toluene (TS) and insoluble in toluene but soluble in pyridine (TI-PS), and their differences in molecular structure and oxidation activity were studied. Several different carbon materials were produced from them by oxidation in air (350 °C, 300 mL/min) followed by carbonization (1000 °C in Ar), and the effect of the cross-linked structure on their structure and sodium storage properties was investigated. The results showed that the two pitch fractions were obviously different after the air oxidation. The TS fraction with a low degree of condensation and abundant side chains had a stronger oxidation activity and thus introduced more cross-linked oxygen-containing functional groups C(O)―O which prevented carbon layer rearrangement during the carbonization. As a result, a disordered hard carbon with more defects was formed, which improved the electrochemical performance. Therefore, the carbon materials derived from TS (O-TS-1000) had an obvious disordered structure and a larger layer spacing, giving them better sodium storage performance than those derived from the TI-PS fraction (O-TI-PS-1000). The specific capacity of O-TS-1000 was about 250 mAh/g at 20 mA/g, which was 1.67 times higher than that of O-TI-PS-1000 (150 mAh/g).\u0000\t\t\t\t<figure><img><ol><li>Download: Download high-res image (107KB)</li><li>Download: Download full-size image</li></ol></figure></div></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"40 2","pages":"Pages 409-421"},"PeriodicalIF":5.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887652","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 activated carbons from leather waste produced by microwave activation for use as the cathode of Li-S batteries 用微波活化法制备的皮革废氮掺杂活性炭作为锂硫电池正极材料

IF 5.7 3区材料科学

New Carbon Materials Pub Date : 2025-04-01 DOI: 10.1016/S1872-5805(25)60958-9

Pano-Azucena Carolina , Rosas-Rangel Roberto , Olvera-Sosa Miguel , Salvador González-González David , Rangel-Mendez Rene , Felipe Chazaro-Ruiz Luis , Avalos-Borja Miguel , Antonio Arcibar-Orozco Javier

{"title":"N-doped activated carbons from leather waste produced by microwave activation for use as the cathode of Li-S batteries","authors":"Pano-Azucena Carolina , Rosas-Rangel Roberto , Olvera-Sosa Miguel , Salvador González-González David , Rangel-Mendez Rene , Felipe Chazaro-Ruiz Luis , Avalos-Borja Miguel , Antonio Arcibar-Orozco Javier","doi":"10.1016/S1872-5805(25)60958-9","DOIUrl":"10.1016/S1872-5805(25)60958-9","url":null,"abstract":"<div><div>The use of carbon from waste biomass has the potential to eliminate the drawbacks of Li-S batteries and improve their overall performance. Chrome-tanned-leathershavings (CTLS) are a readily available waste product that can be transformed into porous carbon. We prepared an activated carbon by microwave pyrolysis combined with KOH activator using the CTLS as starting materials. The carbon had a specific surface area of 556 m2g−1 and a honeycomb-like structure. Two kinds of N-doped activated carbons were then synthesized by thermal decomposition of the activated carbon, either combined with urea, or impregnated with ethanolamine. Both N-doped activated carbons have an increased number of nitrogen and amine surface groups. However, only the urea treatment was effective in improving the initial capacity of the cell (1363 mAh g−1), which is probably linked to the sorption of long-chain polysulfides. This investigation confirms that it is possible to use the thermal decomposition of urea to obtain carbon materials from CTLS for use as the sulfur-host cathode in Li-S batteries and improve their performance. A radial basis function neural network was fitted to provide statistical support for the experimental results, which confirmed the importance of the nitrogen content of the carbons in determining the discharge capacity of the cells.\u0000\t\t\t\t<figure><img><ol><li>Download: Download high-res image (159KB)</li><li>Download: Download full-size image</li></ol></figure></div></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"40 2","pages":"Pages 382-395"},"PeriodicalIF":5.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887576","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

Novel thermal interface materials based on mesocarbon microbeads with a high through-plane thermal conductivity 具有高通平面导热系数的介碳微珠新型热界面材料

IF 5.7 3区材料科学

New Carbon Materials Pub Date : 2025-04-01 DOI: 10.1016/S1872-5805(25)60964-4

Zhi-peng SUN, Cheng MA, Ji-tong WANG, Wen-ming QIAO, Li-cheng LING

{"title":"Novel thermal interface materials based on mesocarbon microbeads with a high through-plane thermal conductivity","authors":"Zhi-peng SUN, Cheng MA, Ji-tong WANG, Wen-ming QIAO, Li-cheng LING","doi":"10.1016/S1872-5805(25)60964-4","DOIUrl":"10.1016/S1872-5805(25)60964-4","url":null,"abstract":"<div><div>The rapid development of the information era has led to increased power consumption, which generates more heat. This requires more efficient thermal management systems, with the most direct approach being the development of superior thermal interface materials (TIMs). Mesocarbon microbeads (MCMBs) have several desirable properties for this purpose, including high thermal conductivity and excellent thermal stability. Although their thermal conductivity (K) may not be exceptional among all carbon materials, their ease of production and low cost make them ideal filler materials for developing a new generation of carbon-based TIMs. We report the fabrication of high-performance TIMs by incorporating MCMBs in a polyimide (PI) framework, producing highly graphitized PI/MCMB (PM) foams and anisotropic polydimethylsiloxane/PM (PDMS/PM) composites with a high thermal conductivity using directional freezing and high-temperature thermal annealing. The resulting materials had a high through-plane (TP) K of 15.926 W·m−1·K−1, 4.83 times that of conventional thermally conductive silicone pads and 88.5 times higher than that of pure PDMS. The composites had excellent mechanical properties and thermal stability, meeting the demands of modern electronic products for integration, multi-functionality, and miniaturization.\u0000\t\t\t\t<figure><img><ol><li>Download: Download high-res image (60KB)</li><li>Download: Download full-size image</li></ol></figure></div></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"40 2","pages":"Pages 422-437"},"PeriodicalIF":5.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887617","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 N-doped carbon with encapsulated Fe and Co particles derived from a metal organic framework for use as the anode in lithium-ion batteries 一种从金属有机骨架中提取的含有铁和钴颗粒的氮掺杂碳，用作锂离子电池的阳极

IF 5.7 3区材料科学

New Carbon Materials Pub Date : 2025-04-01 DOI: 10.1016/S1872-5805(25)60959-0

Ren-tian CHEN , Yu-xin ZHU , Rui LUO , Xiao-nuo JIANG , Hong-xiang SI , Xiang-yun QIU , Qian WANG , Tao WEI

{"title":"A N-doped carbon with encapsulated Fe and Co particles derived from a metal organic framework for use as the anode in lithium-ion batteries","authors":"Ren-tian CHEN , Yu-xin ZHU , Rui LUO , Xiao-nuo JIANG , Hong-xiang SI , Xiang-yun QIU , Qian WANG , Tao WEI","doi":"10.1016/S1872-5805(25)60959-0","DOIUrl":"10.1016/S1872-5805(25)60959-0","url":null,"abstract":"<div><div>Metal-organic frameworks (MOFs) are important as possible energy storage materials. Nitrogen-doped iron-cobalt MOFs were synthesized by a one-pot solvothermal method using CoCl3·6H2O and FeCl3·6H2O dissolved in N, N-dimethylformamide, and were converted into Fe-Co embedded in N-doped porous carbon polyhedra by pyrolysis in a nitrogen atmosphere. During pyrolysis, the organic ligands transformed into N-doped porous carbon which improved their structural stability and also their electrical contact with other materials. The Fe and Co are tightly bound together because of their encapsulation by the carbon nitride and are well dispersed in the carbon matrix, and improve the material's conductivity and stability and provide additional capacity. When used as the anode for lithium-ion batteries, the material gives an initial capacity of up to 2230.7 mAh g−1 and a reversible capacity of 1146.3 mAh g−1 is retained after 500 cycles at a current density of 0.5 A g−1, making it an excellent candidate for this purpose.\u0000\t\t\t\t<figure><img><ol><li>Download: Download high-res image (121KB)</li><li>Download: Download full-size image</li></ol></figure></div></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"40 2","pages":"Pages 355-365"},"PeriodicalIF":5.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887574","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 catalytic performance of TiO2 by its surface deposition on CNT buckypapers for use in the removal of wastewater pollutants 在碳纳米管纸表面沉积TiO2以提高其催化性能，用于去除废水污染物

IF 5.7 3区材料科学

New Carbon Materials Pub Date : 2025-04-01 DOI: 10.1016/S1872-5805(25)60966-8

Baratta Mariafrancesca , Vladimirovich Nezhdanov Aleksey , Valentinovich Ershov Aleksey , Aiello Donatella , Napoli Anna , Di Donna Leonardo , Ivanovic Mashin Alexandr , Pasquale Nicoletta Fiore , De Filpo Giovanni

{"title":"Improving the catalytic performance of TiO2 by its surface deposition on CNT buckypapers for use in the removal of wastewater pollutants","authors":"Baratta Mariafrancesca , Vladimirovich Nezhdanov Aleksey , Valentinovich Ershov Aleksey , Aiello Donatella , Napoli Anna , Di Donna Leonardo , Ivanovic Mashin Alexandr , Pasquale Nicoletta Fiore , De Filpo Giovanni","doi":"10.1016/S1872-5805(25)60966-8","DOIUrl":"10.1016/S1872-5805(25)60966-8","url":null,"abstract":"<div><div>Buckypapers (BPs) consist of carbon nanotube (CNT) membranes with good mechanical, thermal and electrical properties. We report the modification of CNT buckypapers by the surface deposition of a thin layer of titanium dioxide and their subsequent photocatalytic use for the removal of three wastewater pollutants: diclofenac (DF), carbofuran (CB) and methylene blue (MB). The results show the following decreases (RE) in the initial concentrations of these pollutants, REDF=99.5%, REMB=96% and RECB=90% after 90 min of exposure to UV-Vis radiation using 0.6 mg of photocatalyst. Experiments also showed that the degradation rate of diclofenac (k = 0.1028 min−1) is respectively 3.5 and 6 times faster than the values for CB (k = 0.0298 min−1) and MB (k = 0.0174 min−1), probably due to the easier bond cleavage in DF. UV-Vis irradiated solutions of these pollutants were then analyzed by mass spectrometry to identify the species formed during photocatalysis and suggest possible degradation paths for MB, DF, and CB. Data showed that the degradation of DF involves the formation of a photocyclization product through loss of HCl molecule, clearly consuming less energy than that needed for the opening of the central aromatic ring in MB, or the loss of the N-methyl amide functional group for CB.\u0000\t\t\t\t<figure><img><ol><li>Download: Download high-res image (97KB)</li><li>Download: Download full-size image</li></ol></figure></div></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"40 2","pages":"Pages 438-455"},"PeriodicalIF":5.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887619","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 ultrafast supercapacitors for AC-line filtering 交流滤波用超高速超级电容器研究进展

IF 5.7 3区材料科学

New Carbon Materials Pub Date : 2025-04-01 DOI: 10.1016/S1872-5805(25)60963-2

Qian SUN , Ya-feng FAN , Li-jing XIE , Zhen-bing WANG , Xian-hong HUANG , Fang-yuan SU , Cheng-meng CHEN

{"title":"A review of ultrafast supercapacitors for AC-line filtering","authors":"Qian SUN , Ya-feng FAN , Li-jing XIE , Zhen-bing WANG , Xian-hong HUANG , Fang-yuan SU , Cheng-meng CHEN","doi":"10.1016/S1872-5805(25)60963-2","DOIUrl":"10.1016/S1872-5805(25)60963-2","url":null,"abstract":"<div><div>Filter capacitors play an important role in alternating current (AC)-line filtering for stabilizing voltage, suppressing harmonics, and improving power quality. However, traditional aluminum electrolytic capacitors (AECs) suffer from a large size, short lifespan, low power density, and poor reliability, which limits their use. In contrast, ultrafast supercapacitors (SCs) are ideal for replacing commercial AECs because of their extremely high power densities, fast charging and discharging, and excellent high-frequency response. We review the design principles and key parameters for ultrafast supercapacitors and summarize research progress in recent years from the aspects of electrode materials, electrolytes, and device configurations. The preparation, structures, and frequency response performance of electrode materials mainly consisting of carbon materials such as graphene and carbon nanotubes, conductive polymers, and transition metal compounds, are focused on. Finally, future research directions for ultrafast SCs are suggested.\u0000\t\t\t\t<figure><img><ol><li>Download: Download high-res image (153KB)</li><li>Download: Download full-size image</li></ol></figure></div></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"40 2","pages":"Pages 243-269"},"PeriodicalIF":5.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887620","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

Hard carbons prepared by a salt-assisted hydrothermal method as anodes for the sodium-ion battery 用盐辅助水热法制备的硬碳作为钠离子电池的阳极

IF 5.7 3区材料科学

New Carbon Materials Pub Date : 2025-04-01 DOI: 10.1016/S1872-5805(25)60954-1

Shuo LIU , Wei ZHOU , Xue-dan SONG , Chang YU , Jie-shan QIU

{"title":"Hard carbons prepared by a salt-assisted hydrothermal method as anodes for the sodium-ion battery","authors":"Shuo LIU , Wei ZHOU , Xue-dan SONG , Chang YU , Jie-shan QIU","doi":"10.1016/S1872-5805(25)60954-1","DOIUrl":"10.1016/S1872-5805(25)60954-1","url":null,"abstract":"<div><div>Hard carbons, with a high sodium storage capacity, low voltage plateau, and excellent cycling stability, have emerged as one of the most promising anode materials for sodium-ion batteries. Because their pore structure has a significant impact on their sodium storage performance, its control is key for improving the battery performance. We used β-cyclodextrin as the carbon source to prepare various hard carbon materials with different micropore structures using a sodium chloride-assisted hydrothermal carbonization strategy, and studied their performance as a function of the sodium chloride concentration. Characterization using XRD, Raman spectroscopy, and high-resolution TEM indicated that changing the sodium chloride concentration changed the pore structure and the closed pore volume. Given the sodium chloride concentration was 2 mol L−1, the hard carbon material (CD-2) had the highest degree of disorder and the largest graphite microcrystals, as well as the largest closed pore volume together with a gradient pore structure. Electrochemical tests indicate that CD-2 had a high specific capacity of 360 mAh g−1 and an initial Coulombic efficiency of 90.2% at 0.02 A g−1. This simple carbonization technique provides an effective way for controlling the closed pore structure in hard carbon materials, thus improving the battery performance.\u0000\t\t\t\t<figure><img><ol><li>Download: Download high-res image (76KB)</li><li>Download: Download full-size image</li></ol></figure></div></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"40 2","pages":"Pages 346-354"},"PeriodicalIF":5.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887573","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 synthesis of electrospun N-doped carbon nanofibers with embedded Fe2N/Fe3C species for catalyzing the O2 and CO2 reduction reactions 制备了包埋Fe2N/Fe3C的电纺丝n掺杂碳纳米纤维，用于催化O2和CO2还原反应

IF 5.7 3区材料科学

New Carbon Materials Pub Date : 2025-04-01 DOI: 10.1016/S1872-5805(25)60957-7

Xiu-zhen LV , Xiang-xiang XU , Meng-meng YU , Yi-chen WEI , Jun-ying WANG , Jun-zhong WANG

{"title":"The synthesis of electrospun N-doped carbon nanofibers with embedded Fe2N/Fe3C species for catalyzing the O2 and CO2 reduction reactions","authors":"Xiu-zhen LV , Xiang-xiang XU , Meng-meng YU , Yi-chen WEI , Jun-ying WANG , Jun-zhong WANG","doi":"10.1016/S1872-5805(25)60957-7","DOIUrl":"10.1016/S1872-5805(25)60957-7","url":null,"abstract":"<div><div>The need for bi-functional catalysts that facilitate both the oxygen reduction (ORR) and carbon dioxide reduction (CO2RR) reactions arises from their potential to help solve the critical problems of carbon neutrality and renewable energy conversion. However, there are few reports on the development of bi-functional catalysts for zinc-air battery-driven CO2RR devices. We introduce a novel approach for synthesizing Fe2N/Fe3C species embedded in nitrogen-doped carbon nanofibers by electrospinning a solution of Hemin and polyacrylonitrile in N,N-dimethylformamide. The material has an exceptional catalytic performance, with a half-wave potential of 0.91 V versus RHE for the ORR and values of over 90% for both the selectivity and Faradaic efficiency for the CO2RR. The high catalytic performances are attributed to the strong coupling between the Fe3C/Fe2N heterostructure and the Fe-N-C sites in the nitrogen-doped carbon nanofibers. Notably, both Fe3C and Fe2N play distinct roles in both the ORR and CO2RR. This investigation indicates a way for designing advanced carbon-based bi-functional catalysts for use in this field.\u0000\t\t\t\t<figure><img><ol><li>Download: Download high-res image (61KB)</li><li>Download: Download full-size image</li></ol></figure></div></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"40 2","pages":"Pages 333-344"},"PeriodicalIF":5.7,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143887623","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