New Carbon Materials最新文献

{"title":"Spore-derived porous carbon with tailored heteroatom doping for anode of sodium-ion capacitors","authors":"Yiming Wang,&nbsp;Kerou Qiu,&nbsp;Haidong Yu,&nbsp;Zhiqiang Hou,&nbsp;Haotian Chen,&nbsp;Jiahao Cheng,&nbsp;Yabin Zhang,&nbsp;Jinliang Zhu,&nbsp;Bingsuo Zou","doi":"10.1016/S1872-5805(26)61100-6","DOIUrl":"10.1016/S1872-5805(26)61100-6","url":null,"abstract":"<div><div>Sodium-ion capacitors (SICs) are attractive candidates for low-cost and safe energy storage, but their practical development is limited by the sluggish Na⁺ storage kinetics and structural instability of the anodes. Control of both the bulk structure and surface chemistry can address these limitations and achieve fast and durable sodium storage. We report a heteroatom-rich porous carbon (HRPC) produced from spores by hydrothermal pretreatment, low-temperature carbonization, and acid-mediated functionalization. Control of both the pore structure and surface chemistry enables rapid ion/electron transport, improved electrolyte wettability, and abundant Na⁺ adsorption sites. Density functional theory calculations show the distinct contributions of different heteroatom configurations to sodium adsorption, providing mechanistic insights into the improved storage behavior. The HRPC anode has an ultrahigh reversible capacity of 446.1 mAh g⁻¹ at 50 mA g⁻¹, retaining 237.3 mAh g⁻¹ at 2 A g⁻¹, and has an excellent cycling stability. A full SIC assembled with a polyaniline-derived porous carbon cathode has an energy density of 114.4 Wh kg⁻¹ at 290 W kg⁻¹ and an 84.3% capacity retention after 5000 cycles. This work establishes a scalable and sustainable route for converting biomass into high-value carbon anodes by controlling both the pore structure and surface chemistry, and providing a new way to provide high-performance sodium-ion energy storage.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (96KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"41 4","pages":"Pages 928-944"},"PeriodicalIF":7.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148916031","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}

{"title":"Progress on graphite-based bipolar plates for use in proton exchange membrane fuel cells","authors":"Dengke Wang,&nbsp;Wei Lu,&nbsp;Peiyong Yang,&nbsp;Maorong Chai","doi":"10.1016/S1872-5805(26)61117-1","DOIUrl":"10.1016/S1872-5805(26)61117-1","url":null,"abstract":"<div><div>Graphite-based bipolar plates (GBPs) possess excellent electrical and thermal conductivity, corrosion resistance, and durability, making them promising components for proton exchange membrane fuel cells. However, the inherent brittleness and porous structure of graphite can result in inadequate mechanical strength and high gas permeability, thereby limiting the practical application and large-scale manufacture of GBPs. This review summarizes recent advances in GBP fabrication, focusing on the effects of the graphite raw materials, polymer matrices, conductive and reinforcing fillers, and molding processes on GBP performance. The relationships among graphite particle size, morphology, surface characteristics, filler dispersion, interfacial bonding, resin content, and the electrical conductivity, mechanical strength, gas permeability, and corrosion resistance of GBPs are discussed. The effects of material composition, microstructure, and processing conditions on the overall performance of GBPs are also analyzed. In addition, the trade-offs between electrical conductivity, mechanical strength, gas permeability, corrosion resistance, and processability are highlighted. Finally, strategies for improving performance are summarized, including optimization of the graphite raw materials, multiscale filler design, interfacial regulation, resin-content optimization, and improvements in molding processes.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (132KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"41 4","pages":"Pages 873-889"},"PeriodicalIF":7.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148916026","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}

{"title":"Single-atom iron catalysts on carbon nanosheets with specific defects for efficient phenol degradation by peroxydisulfate activation","authors":"Ruixue Wang,&nbsp;Zihan Qiu,&nbsp;Runmeng Zhang,&nbsp;Changyu Leng,&nbsp;Xuzhen Wang,&nbsp;Jieshan Qiu","doi":"10.1016/S1872-5805(26)61101-8","DOIUrl":"10.1016/S1872-5805(26)61101-8","url":null,"abstract":"<div><div>Phenolic compounds are typical refractory organic pollutants in coal chemical coking wastewater. The largescale use of high-performance Fe-C composites in advanced oxidation processes for water treatment is limited by their complex synthesis and high cost. We report a low-cost Fe/N―C catalyst composed of nitrogen-doped carbon nanosheets containing abundant defects (sp³-C/sp²-C = 0.66) coordinated with single-atom iron species. The catalyst was prepared using coal-tar pitch, a common by-product of the coal chemical industry, as the carbon precursor, dicyandiamide as the auxiliary nitrogen source, and Fe-Cl₃·6H₂O as the iron precursor, using a self-assembly and pyrolysis strategy with graphitic carbon nitride (g-C₃N₄) as a template. The Fe/N―C catalyst has an outstanding catalytic performance for the activation of peroxydisulfate, achieving over 98% phenol degradation within 30 min and a 60% total organic carbon removal rate. Characterization and mechanism studies have shown that in the Fe/N―C/PDS system, the degradation of phenol proceeds by both radical and non-radical path, with singlet oxygen (¹O₂) acting as the primary reactive oxygen species. Furthermore, compared with N―C, Fe/N―C has a greater ability to mediate interfacial electron transfer. This work provides an economical way to convert coal-tar pitch to carbon-based materials for efficient water treatment.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (219KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"41 4","pages":"Pages 890-904"},"PeriodicalIF":7.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148916028","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}

{"title":"A platinum catalyst with hierarchical porosity supported on a honeycomb-like nitrogen-doped carbon for excellent oxygen reduction reaction performance","authors":"Dongju Fu,&nbsp;Zerui Chen,&nbsp;Zhao Hu,&nbsp;Nan Wang,&nbsp;Jinghui Xun,&nbsp;Lunqiao Zhang,&nbsp;Zexi Lin,&nbsp;Weifeng Liu,&nbsp;Xiao Yu,&nbsp;Xuguang Liu","doi":"10.1016/S1872-5805(26)61093-1","DOIUrl":"10.1016/S1872-5805(26)61093-1","url":null,"abstract":"<div><div>Advanced catalyst structures with good active site accessibility and strong metal-support interactions are crucial for oxygen reduction reaction (ORR) catalysis. A hierarchically porous Pt catalyst supported on honeycomb-like nitrogen-doped carbon (Pt/HNC-400, where 400 denotes the optimal dosage (mg) of the sacrificial SiO₂ hard template used during synthesis) was fabricated by combining template-assisted pyrolysis and alcohol reduction. The fabrication involves the template-assisted pyrolysis of ZIF-67 (which provides the N-dopant through its 2-methylimidazole ligand) followed by HF etching to completely remove the SiO₂, yielding a 3D interconnected porous carbon support. Compared to a commercial Pt/C, it had an exceptional ORR performance with a half-wave potential of 0.901 V (41 mV higher), a mass activity at 0.9 V that was 15.3 times higher, and significantly improved durability (a half-wave potential decay of 25 mV vs. 80 mV after 10 000 accelerated durability tests (ADTs)). Mechanistic investigations showed that this superior performance is due to the combined effects of the 3D porous structure, ultrafine Pt nanoparticles with strong metal-support interactions, and in-situ formed Co-N_<em>x</em> moieties from the pyrolysis of precursor ZIF-67. After 10 000 ADTs it was shown to have excellent structural integrity, retaining 87.4% of its initial electrochemically active surface area (102.7 m²g⁻¹). This study may assist the development of new high-performance ORR catalysts.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (213KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"41 4","pages":"Pages 977-994"},"PeriodicalIF":7.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148916033","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}

{"title":"Hierarchically porous fibrous carbon containing Fe3O4 particles and doped with both N and S derived from polypyrrole modified lignosulphonate-bacterial cellulose for use in high performance supercapacitors","authors":"Kummara Madhusudana Rao,&nbsp;Sung Soo Han","doi":"10.1016/S1872-5805(26)61112-2","DOIUrl":"10.1016/S1872-5805(26)61112-2","url":null,"abstract":"<div><div>The design of heteroatom-doped porous carbon materials integrated with metal oxide nanostructures has emerged as an efficient approach for improving the electrochemical performance of supercapacitors. A green and cost-effective method is reported for the fabrication of a hierarchical porous carbon composite from bacterial cellulose (BC), lignosulfonic acid (LS), and polypyrrole (PPy). LS serves as both an anchoring agent and a soft molecular template, directing the oxidative polymerization and uniform deposition of PPy onto the BC nanofibers in the presence of FeCl₃ as the oxidizing agent. Subsequent carbonization under a nitrogen atmosphere results in the formation of an N/S co-doped carbon framework decorated with Fe₃O₄ nanoparticles, which is denoted C-BCLP. For comparison, a control composite consisting of BC and PPy without LS was carbonized to produce C-BCP. X-ray diffraction patterns confirms the synthesis of Fe₃O₄ nanoparticles and the preservation of the fibrous carbon structure. Electron microscopy shows that C-BCLP has a highly porous and conductive network with a homogeneous distribution of C, O, N, S and Fe elements. Because of the combined effects of hierarchical porosity, heteroatom doping, and Fe₃O₄ incorporation, the C-BCLP electrode has high specific capacitances of 338.3 F g⁻¹ at 1 A g⁻¹ and 191.6 F g⁻¹ at 10 A g⁻¹. In addition, it has excellent cycling stability, retaining 99.1% of its initial capacitance after 10 000 charge-discharge cycles, outperforming the C-BCP electrode. The work suggests a promising way to develop next-generation high-performance supercapacitors.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (304KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"41 4","pages":"Pages 995-1008"},"PeriodicalIF":7.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148915991","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}

{"title":"Tuning porosity and capacitance of laser-assisted grown graphene by controlled thermal annealing","authors":"Nikolaos Samartzis,&nbsp;Natalia Kantouni,&nbsp;Elli Bellou,&nbsp;Paraskevas Dimitropoulos,&nbsp;Labrini Sygellou,&nbsp;Athanassios Chrissanthopoulos,&nbsp;Spyros N. Yannopoulos","doi":"10.1016/S1872-5805(26)61098-0","DOIUrl":"10.1016/S1872-5805(26)61098-0","url":null,"abstract":"<div><div>Graphene-like electrodes produced by a laser-assisted method are attractive for electrochemical energy storage. However, their performance is strongly affected by the pore network created during manufacture, which is difficult to control reproducibly. We have examined how a simple thermal post-treatment modifies the porosity and surface chemistry of these electrodes, and how these changes influence their capacitive performance. Parameters such as the annealing temperature, dwell time, and atmosphere (air versus inert) were varied. Mild annealing in air (up to 500 °C) decreased the number of oxygen-containing functionalities and increased the sp²<em>/</em>sp³ carbon ratio, while significantly increasing the specific surface area from 110 to 498 m² g⁻¹ and broadening the pore-size distribution. These structural and chemical changes correlate with a large increase in capacitance, approaching an order-of-magnitude compared with the untreated electrodes. The best annealed electrodes produced retained 92% of their capacitance when the current increased by a factor of 25, and had stable long-term cycling with 99% capacitance retention after 10 000 cycles. Because the process is based on laser processing followed by simple thermal annealing, it is compatible with scalable manufacturing and avoids wet-chemical activation routes.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (264KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"41 4","pages":"Pages 1026-1038"},"PeriodicalIF":7.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148915993","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}

{"title":"Changing the carbon framework to produce low-expansion silicon-carbon composites for high-performance lithium-ion batteries","authors":"Lin Ye,&nbsp;Qiang Huang,&nbsp;Gongchang Peng,&nbsp;Guilei Tian,&nbsp;Hongyou Bai,&nbsp;Xiaoqing Zhou,&nbsp;Junkuo Wang","doi":"10.1016/S1872-5805(26)61109-2","DOIUrl":"10.1016/S1872-5805(26)61109-2","url":null,"abstract":"<div><div>Silicon-carbon (Si/C) composites are promising high-capacity anode materials for next-generation lithiumion batteries, but their commercialization is hindered by their severe volume expansion during cycling. We report a chemical vapor deposition method using the pyrolysis of silane, in which ultrafine nano-Si enters a porous carbon framework to produce kilogram-scale Si/C composites. The carbon framework with abundant micropores (∼ 1.9 nm), confines the amorphous silicon and accommodates the volume changes of nano-Si during both lithiation and de-lithiation. The resulting Si/C composites have a 56.76% Si content and have a specific capacity of 2179 mAh g⁻¹, a high initial Coulombic efficiency (ICE) of 93.5%, and a low specific surface area (1.32 m² g⁻¹). In addition to the nanoconfinement effect, the median particle size (<em>D</em>₅₀, 7.3-13.0 µm) of the carbon framework was shown to control the mechanical strength, coating uniformity and Li⁺ transport. A <em>D</em>₅₀ of 8.2 µm endows the Si/C composites with outstanding comprehensive properties. They have an excellent rate performance with a 97.0% retention at 3 C relative to 0.1 C, show only minor variations in ICE difference at 60 °C/-20 °C compared with room temperature, and have a low expansion of 35.8% from the delithiated to the lithiated state. The composite was then mixed with graphite to prepare the anode, which was then paired with an NCM523 cathode to assemble pouch cells. The pouch cell retained 87.46% of its initial capacity after 1000 cycles at 1 C. Because of the low expansion of the electrode, the material avoids structural degradation during cycling and thus has an excellent long-term stability.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (166KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"41 4","pages":"Pages 961-975"},"PeriodicalIF":7.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148916032","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}

{"title":"Revealing abnormal micro- and meso-structure evolution mechanism of porous pyrolytic carbon in TRISO coated fuel particles under high-temperature treatment","authors":"Jinhong Lei,&nbsp;Xu Yang,&nbsp;Xing Cheng,&nbsp;Hui Yang,&nbsp;Kaihong Zhang,&nbsp;Hao Yu,&nbsp;Xiaoxue Liu,&nbsp;Hongsheng Zhao,&nbsp;Bing Liu","doi":"10.1016/S1872-5805(26)61113-4","DOIUrl":"10.1016/S1872-5805(26)61113-4","url":null,"abstract":"<div><div>Porous pyrolytic carbon (PPyC) serves as the buffer layer in TRi-structural ISOtropic (TRISO) fuel particles, where it provides storage for fission gases, prevents damage to the outer layers, and absorbs stresses caused by fuel-kernel swelling. However, the changes of the PPyC microand meso-structure at high-temperatures remains insufficiently understood. In this study, PPyC fabricated by chemical vapor deposition was heat-treated from 1200 to 1600 °C and characterized across the atomic-to-mesoscopic scales. The results show that structure of the PPyC changes with temperature with a transition at approximately 1400 °C. Below 1400 °C, a decrease in the Raman peak ratio <em>I_D</em>/<em>I_G</em>, a narrowing of the graphite diffraction peak, and an increase in the amount of sp² hybridization collectively indicate progressive ordering associated with defect redistribution. Concurrent decreases in true density and mesopore volume, together with increased closed porosity, are consistent with the partial conversion of open pores into closed pores. Above 1400 °C, the increased <em>I_D/I_G</em>ratio, broadening of the diffraction peak near the position of the rhombohedral graphite (101) reflection planes, and transition regions between crystalline and amorphous material observed by transmission electron microscopy collectively indicate increasing structural disorder. Meanwhile, the initially distinct boundaries of the PPyC particles become blurred and appear to merge into broad, plate-like domains. The subsequent decrease in closed porosity and increase in mesopore surface area are consistent with partial connection of closed pores to the open-pore network. This work shows that the intrinsic coupling between atomic-scale structural change and mesoscale pore connectivity provides a basis for assessing the high-temperature structural stability of PPyC in TRISO fuel particles.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (526KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"41 4","pages":"Pages 1040-1053"},"PeriodicalIF":7.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148915994","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}

{"title":"A Cu/Cu2O@C composite catalyst derived from wood-chips for the efficient one-pot oxidation of cyclohexane to adipic acid","authors":"Sheng Wang,&nbsp;Zhijia Chen,&nbsp;Xiao Wang,&nbsp;Chunhua Yuan,&nbsp;Songbo Li,&nbsp;Huimin Yang","doi":"10.1016/S1872-5805(26)61108-0","DOIUrl":"10.1016/S1872-5805(26)61108-0","url":null,"abstract":"<div><div>Adipic acid is widely used in fine chemical synthesis, biomedicine and other industrial fields, and is a key monomer for the synthesis of nylon-6,6 and nylon-6. Industrially, it is produced by the efficient catalytic oxidation of cyclohexane. However, the activation of the inert C―H bonds in cyclohexane remains a major challenge in the highly selective synthesis of acid products. Using a composite catalyst of copper on a carbon support produced from wood chip biomass, a green catalytic system was established for the one-pot oxidative synthesis of adipic acid from cyclohexane. Wood chips has two functions during pyrolysis: it acts as a carbon support precursor and an in-situ reducing agent, which reduces Cu²⁺ into Cu/Cu₂O active species to obtain Cu/Cu₂O@C composite catalysts. The abundant defects in biomass carbon form strong coordination interactions with the copper active components, which effectively regulate the electronic distribution of active sites and improve the catalytic performance. Under optimized conditions (100 °C, 12 h), the Cu/Cu₂[email protected] catalyst achieves a cyclohexane conversion of 19.36% and an adipic acid selectivity of 73.28%. Mechanistic investigations show that the electronic interaction between the biomass carbon support and the copper species strengthens the adsorption of cyclohexanone, which is critical for promoting the selective formation of adipic acid. This study provides a viable strategy for developing eco-friendly, low-cost and high-efficiency advanced catalytic materials.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (138KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"41 4","pages":"Pages 1054-1067"},"PeriodicalIF":7.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148915995","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}

{"title":"The stabilization of sulfur species in coal-derived hard carbon by micropore confinement and chemical bonding to improve sodium storage","authors":"Hong Zhu,&nbsp;Yu Cui,&nbsp;Qi Han,&nbsp;Cunhe Li,&nbsp;Rui Zhou,&nbsp;Xiaoyu Chi,&nbsp;Yanfeng Shen,&nbsp;Meijun Wang,&nbsp;Chunli Guo,&nbsp;Liping Chang","doi":"10.1016/S1872-5805(26)61106-7","DOIUrl":"10.1016/S1872-5805(26)61106-7","url":null,"abstract":"<div><div>To solve the problems of limited capacity, low initial coulombic efficiency, and poor long-term cycling stability in hard carbon anodes for sodium-ion batteries, a stabilization strategy is reported that uses both microporous confinement and chemical bonding to control the sulfur species. Hard carbon is derived from bituminous coal, taking advantage of its naturally condensed aromatic framework. Using a two-step thermal process, a microporous carbon framework was constructed, followed by gasphase sulfidation to introduce sulfur species. The sulfur is confined in the micropores while forming stable covalent C-S bonds with the carbon matrix, which stabilizes the sulfur by both physical and chemical means and thus suppresses sulfur migration, which prevents interfacial side reactions and introduces additional redox-active sites. As a result, the sample delivers a high reversible capacity of 450 mAh/g after 800 cycles at a current density of 1 A/g, with excellent rate capability and cycling stability. Analysis of the storage mechanism shows that the stabilized sulfur species can reversibly participate in the sodium-ion storage and improve interfacial kinetics.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (150KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div></div>","PeriodicalId":19719,"journal":{"name":"New Carbon Materials","volume":"41 4","pages":"Pages 917-927"},"PeriodicalIF":7.2,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148916030","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}