Carbon Energy最新文献_第5页

Isolated FeN3 sites anchored hierarchical porous carbon nanoboxes for hydrazine-assisted rechargeable Zn-CO2 batteries with ultralow charge voltage

IF 19.5 1区材料科学

Carbon Energy Pub Date : 2024-11-08 DOI: 10.1002/cey2.637

Sanshuang Gao, Hongyi Li, Zhansheng Lu, Songjie Meng, Xue Zhao, Xinzhong Wang, Xijun Liu, Guangzhi Hu

{"title":"Isolated FeN3 sites anchored hierarchical porous carbon nanoboxes for hydrazine-assisted rechargeable Zn-CO2 batteries with ultralow charge voltage","authors":"Sanshuang Gao, Hongyi Li, Zhansheng Lu, Songjie Meng, Xue Zhao, Xinzhong Wang, Xijun Liu, Guangzhi Hu","doi":"10.1002/cey2.637","DOIUrl":"https://doi.org/10.1002/cey2.637","url":null,"abstract":"Zn-CO2 batteries (ZCBs) are promising for CO2 conversion and electric energy release. However, the ZCBs couple the electrochemical CO2 reduction (ECO2R) with the oxygen evolution reaction and competitive hydrogen evolution reaction, which normally causes ultrahigh charge voltage and CO2 conversion efficiency attenuation, thereby resulting in ~90% total power consumption. Herein, isolated FeN3 sites encapsulated in hierarchical porous carbon nanoboxes (Fe-HPCN, derived from the thermal activation process of ferrocene and polydopamine-coated cubic ZIF-8) were proposed for hydrazine-assisted rechargeable ZCBs based on ECO2R (discharging process: CO2 + 2H+ → CO + H2O) and hydrazine oxidation reaction (HzOR, charging process: N2H4 + 4OH− → N2 + 4H2O + 4e−). The isolated FeN3 endows the HzOR with a lower overpotential and boosts the ECO2R with a 96% CO Faraday efficiency (FECO). Benefitting from the bifunctional ECO2R and HzOR catalytic activities, the homemade hydrazine-assisted rechargeable ZCBs assembled with the Fe-HPCN air cathode exhibited an ultralow charge voltage (decreasing by ~1.84 V), excellent CO selectivity (FECO close to 100%), and high 89% energy efficiency. In situ infrared spectroscopy confirmed that Fe-HPCN can generate rate-determining *N2 and *CO intermediates during HzOR and ECO2R. This paper proposes FeN3 centers for bifunctional ECO2R/HzOR performance and further presents the pioneering achievements of ECO2R and HzOR for hydrazine-assisted rechargeable ZCBs.","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"7 1","pages":""},"PeriodicalIF":19.5,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.637","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modulating the coordination environment of cobalt porphyrins for enhanced electrochemical nitrite reduction to ammonia

IF 19.5 1区材料科学

Carbon Energy Pub Date : 2024-11-08 DOI: 10.1002/cey2.657

Jingwei Han, Hai Sun, Fengkun Tian, Wenwen Zhang, Zonghang Zhang, Ping She, Jun-Sheng Qin, Heng Rao

{"title":"Modulating the coordination environment of cobalt porphyrins for enhanced electrochemical nitrite reduction to ammonia","authors":"Jingwei Han, Hai Sun, Fengkun Tian, Wenwen Zhang, Zonghang Zhang, Ping She, Jun-Sheng Qin, Heng Rao","doi":"10.1002/cey2.657","DOIUrl":"https://doi.org/10.1002/cey2.657","url":null,"abstract":"Electrocatalytic reduction of nitrate pollutants to produce ammonia offers an effective approach to realizing the artificial nitrogen cycle and replacing the energy-intensive Haber-Bosch process. Nitrite is an important intermediate product in the reduction of nitrate to ammonia. Therefore, the mechanism of converting nitrite into ammonia warrants further investigation. Molecular cobalt catalysts are regarded as promising for nitrite reduction reactions (NO2−RR). However, designing and controlling the coordination environment of molecular catalysts is crucial for studying the mechanism of NO2−RR and catalyst design. Herein, we develop a molecular platform of cobalt porphyrin with three coordination microenvironments (Co-N3X1, X = N, O, S). Electrochemical experiments demonstrate that cobalt porphyrin with O coordination (CoOTPP) exhibits the lowest onset potential and the highest activity for NO2−RR in ammonia production. Under neutral, non-buffered conditions over a wide potential range (−1.0 to −1.5 V versus AgCl/Ag), the Faradaic efficiency of nearly 90% for ammonia was achieved and reached 94.5% at −1.4 V versus AgCl/Ag, with an ammonia yield of 6,498 μg h−1 and a turnover number of 22,869 at −1.5 V versus AgCl/Ag. In situ characterization and density functional theory calculations reveal that modulating the coordination environment alters the electron transfer mode of the cobalt active center and the charge redistribution caused by the break of the ligand field. Therefore, this results in enhanced electrochemical activity for NO2−RR in ammonia production. This study provides valuable guidance for designing adjustments to the coordination environment of molecular catalysts to enhance catalytic activity.","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"7 1","pages":""},"PeriodicalIF":19.5,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.657","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ionic-electronic dual-conductor interface engineering and architecture design in layered lithium-rich manganese-based oxides

IF 19.5 1区材料科学

Carbon Energy Pub Date : 2024-11-08 DOI: 10.1002/cey2.642

Youyou Fang, Yuefeng Su, Jinyang Dong, Jiayu Zhao, Haoyu Wang, Ning Li, Yun Lu, Yujia Wu, Wenbo Li, Ni Yang, Xiaojuan Wu, Feng Wu, Lai Chen

{"title":"Ionic-electronic dual-conductor interface engineering and architecture design in layered lithium-rich manganese-based oxides","authors":"Youyou Fang, Yuefeng Su, Jinyang Dong, Jiayu Zhao, Haoyu Wang, Ning Li, Yun Lu, Yujia Wu, Wenbo Li, Ni Yang, Xiaojuan Wu, Feng Wu, Lai Chen","doi":"10.1002/cey2.642","DOIUrl":"https://doi.org/10.1002/cey2.642","url":null,"abstract":"The burgeoning growth in electric vehicles and portable energy storage systems necessitates advances in the energy density and cost-effectiveness of lithium-ion batteries (LIBs), areas where lithium-rich manganese-based oxide (LLO) materials naturally stand out. Despite their inherent advantages, these materials encounter significant practical hurdles, including low initial Coulombic efficiency (ICE), diminished cycle/rate performance, and voltage fading during cycling, hindering their widespread adoption. In response, we introduce an ionic-electronic dual-conductive (IEDC) surface control strategy that integrates an electronically conductive graphene framework with an ionically conductive heteroepitaxial spinel Li4Mn5O12 layer. Prolonged electrochemical and structural analyses demonstrate that this IEDC heterostructure effectively minimizes polarization, mitigates structural distortion, and enhances electronic/ionic diffusion. Density functional theory calculations highlight an extensive Li+ percolation network and lower Li+ migration energies at the layered-spinel interface. The designed LLO cathode with IEDC interface engineering (LMOSG) exhibits improved ICE (82.9% at 0.1 C), elevated initial discharge capacity (296.7 mAh g−1 at 0.1 C), exceptional rate capability (176.5 mAh g−1 at 5 C), and outstanding cycle stability (73.7% retention at 5 C after 500 cycles). These findings and the novel dual-conductive surface architecture design offer promising directions for advancing high-performance electrode materials.","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"7 2","pages":""},"PeriodicalIF":19.5,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.642","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143497037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Back Cover Image, Volume 6, Number 10, October 2024 封底图片，第 6 卷第 10 号，2024 年 10 月

IF 19.5 1区材料科学

Carbon Energy Pub Date : 2024-10-25 DOI: 10.1002/cey2.688

Qihang Ding, Zewen Jiang, Kean Chen, Hui Li, Jingzhe Shi, Xinping Ai, Dingguo Xia

引用次数: 0

Cover Image, Volume 6, Number 10, October 2024 封面图片，第 6 卷第 10 号，2024 年 10 月

IF 19.5 1区材料科学

Carbon Energy Pub Date : 2024-10-25 DOI: 10.1002/cey2.687

Li-Feng Zhou, Jia-Yang Li, Jian Peng, Li-Ying Liu, Hang Zhang, Yi-Song Wang, Yameng Fan, Jia-Zhao Wang, Tao Du

引用次数: 0

Interface and doping engineering of V2C-MXene-based electrocatalysts for enhanced electrocatalysis of overall water splitting 基于 V2C-MXene 的电催化剂的界面和掺杂工程，以增强整体水分离的电催化性能

IF 19.5 1区材料科学

Carbon Energy Pub Date : 2024-10-23 DOI: 10.1002/cey2.583

Yousen Wu, Jinlong Li, Guozhe Sui, Dong-Feng Chai, Yue Li, Dongxuan Guo, Dawei Chu, Kun Liang

{"title":"Interface and doping engineering of V2C-MXene-based electrocatalysts for enhanced electrocatalysis of overall water splitting","authors":"Yousen Wu, Jinlong Li, Guozhe Sui, Dong-Feng Chai, Yue Li, Dongxuan Guo, Dawei Chu, Kun Liang","doi":"10.1002/cey2.583","DOIUrl":"https://doi.org/10.1002/cey2.583","url":null,"abstract":"The restacking and oxidizable nature of vanadium-based carbon/nitride (V2C-MXene) poses a significant challenge. Herein, tellurium (Te)-doped V2C/V2O3 electrocatalyst is constructed via mild H2O2 oxidation and calcination treatments. Especially, this work rationally exploits the inherent easy oxidation characteristic associated with MXene to alter the interfacial information, thereby obtaining stable self-generated vanadium-based heterointerfaces. Meanwhile, the microetching effect of H2O2 creates numerous pores to address the restacking issues. Besides, Te element doping settles the issue of awkward levels of absorption/desorption ability of intermediates. The electrocatalyst obtains an unparalleled hydrogen evolution reaction and oxygen evolution reaction with the overpotential of 83.5 and 279.8 mV at −10 and 10 mA cm−2, respectively. In addition, the overall water-splitting device demonstrates a low cell voltage of 1.41 V to obtain 10 mA cm−2. Overall, the inherent drawbacks of MXene can be turned into benefits based on the planning strategy to create these electrocatalysts with desirable reaction kinetics.","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"6 10","pages":""},"PeriodicalIF":19.5,"publicationDate":"2024-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.583","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142525007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Progress and prospect of flexible MXene-based energy storage

IF 19.5 1区材料科学

Carbon Energy Pub Date : 2024-10-21 DOI: 10.1002/cey2.639

Hongxin Yuan, Jianxin Hua, Wei Wei, Miao Zhang, Yue Hao, Jingjing Chang

引用次数: 0

Proton exchange membrane-based electrocatalytic systems for hydrogen production

IF 19.5 1区材料科学

Carbon Energy Pub Date : 2024-10-21 DOI: 10.1002/cey2.629

Yangyang Zhou, Hongjing Zhong, Shanhu Chen, Guobin Wen, Liang Shen, Yanyong Wang, Ru Chen, Li Tao, Shuangyin Wang

{"title":"Proton exchange membrane-based electrocatalytic systems for hydrogen production","authors":"Yangyang Zhou, Hongjing Zhong, Shanhu Chen, Guobin Wen, Liang Shen, Yanyong Wang, Ru Chen, Li Tao, Shuangyin Wang","doi":"10.1002/cey2.629","DOIUrl":"https://doi.org/10.1002/cey2.629","url":null,"abstract":"Hydrogen energy from electrocatalysis driven by sustainable energy has emerged as a solution against the background of carbon neutrality. Proton exchange membrane (PEM)-based electrocatalytic systems represent a promising technology for hydrogen production, which is equipped to combine efficiently with intermittent electricity from renewable energy sources. In this review, PEM-based electrocatalytic systems for H2 production are summarized systematically from low to high operating temperature systems. When the operating temperature is below 130°C, the representative device is a PEM water electrolyzer; its core components and respective functions, research status, and design strategies of key materials especially in electrocatalysts are presented and discussed. However, strong acidity, highly oxidative operating conditions, and the sluggish kinetics of the anode reaction of PEM water electrolyzers have limited their further development and shifted our attention to higher operating temperature PEM systems. Increasing the temperature of PEM-based electrocatalytic systems can cause an increase in current density, accelerate reaction kinetics and gas transport and reduce the ohmic value, activation losses, ΔGH*, and power consumption. Moreover, further increasing the operating temperature (120–300°C) of PEM-based devices endows various hydrogen carriers (e.g., methanol, ethanol, and ammonia) with electrolysis, offering a new opportunity to produce hydrogen using PEM-based electrocatalytic systems. Finally, several future directions and prospects for developing PEM-based electrocatalytic systems for H2 production are proposed through devoting more efforts to the key components of devices and reduction of costs.","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"7 1","pages":""},"PeriodicalIF":19.5,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.629","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143117955","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

NaTiOx-modified high-nickel layered oxide cathode for stable sodium-ion batteries

IF 19.5 1区材料科学

Carbon Energy Pub Date : 2024-10-16 DOI: 10.1002/cey2.627

Yingcong Liu, Xing Zhou, Dongwei He, Xiaowei Liu, Chao Yang, Dawei Xu, Meilong Wang, Ruitao Sun, Bin Zhang, Jingjing Xie, Jin Han, Wen Chen, Ya You

{"title":"NaTiOx-modified high-nickel layered oxide cathode for stable sodium-ion batteries","authors":"Yingcong Liu, Xing Zhou, Dongwei He, Xiaowei Liu, Chao Yang, Dawei Xu, Meilong Wang, Ruitao Sun, Bin Zhang, Jingjing Xie, Jin Han, Wen Chen, Ya You","doi":"10.1002/cey2.627","DOIUrl":"https://doi.org/10.1002/cey2.627","url":null,"abstract":"The O3-type layered cathode with high Ni content has attracted much attention because of its high capacity and simple synthesis process. However, surface side reaction and O3–P3 phase transitions would occur during Na+ insertion/extraction, resulting in unsatisfying electrochemical performance. Herein, O3-Na[Ni0.6Co0.2Mn0.2]O2 (NNCM622) cathode is modified by a NaTiOx coating layer in a wet chemistry method, which reduces the parasitic reaction and facilitates Na+ migration. Simultaneously, the partially doped Ti improves structural stability by restraining the irreversible multiple-phase transition. As a result, the modified NNCM622 cathode obtains a high specific capacity of 143.4 mAh g−1 and an improved capacity retention of 69% after 300 cycles. Our work offers new prospects for stabilizing the NNCM622 cathode with a feasible coating strategy.","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"7 1","pages":""},"PeriodicalIF":19.5,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.627","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Metal–Salen-Incorporated conjugated microporous polymers as robust artificial leaves for solar-driven reduction of atmospheric CO2 with H2O

IF 19.5 1区材料科学

Carbon Energy Pub Date : 2024-10-16 DOI: 10.1002/cey2.646

Wei Wu, Zhaocen Dong, Mantao Chen, Waner Li, An Liao, Qing Liu, Yachao Zhang, Zhixin Zhou, Chao Zeng, Xuezhong Gong, Chunhui Dai

{"title":"Metal–Salen-Incorporated conjugated microporous polymers as robust artificial leaves for solar-driven reduction of atmospheric CO2 with H2O","authors":"Wei Wu, Zhaocen Dong, Mantao Chen, Waner Li, An Liao, Qing Liu, Yachao Zhang, Zhixin Zhou, Chao Zeng, Xuezhong Gong, Chunhui Dai","doi":"10.1002/cey2.646","DOIUrl":"https://doi.org/10.1002/cey2.646","url":null,"abstract":"Exploration of efficient and stable photocatalysts to mimic natural leaves for the conversion of atmospheric CO2 into hydrocarbons utilizing solar light is very important but remains a major challenge. Herein, we report the design of four novel metal–salen-incorporated conjugated microporous polymers as robust artificial leaves for photoreduction of atmospheric CO2 with gaseous water. Owing to the rich nitrogen and oxygen moieties in the polymeric frameworks, they show a maximum CO2 adsorption capacity of 46.1 cm3 g−1 and adsorption selectivity for CO2/N2 of up to 82 at 273 K. Under air atmosphere and simulated solar light (100 mW cm−2), TEPT-Zn shows an excellent CO yield of 304.96 μmol h−1 g−1 with a selectivity of approximately 100%, which represents one of the best results in terms of organic photocatalysts for gas-phase CO2 photoreduction so far. Furthermore, only small degradation in the CO yield is observed even after 120-h continuous illumination. More importantly, a good CO yield of 152.52 μmol g−1 was achieved by directly exposing the photocatalytic reaction of TEPT-Zn in an outdoor environment for 3 h (25–28°C, 52.3 ± 7.9 mW cm−2). This work provides an avenue for the continued development of advanced polymers toward gas-phase photoconversion of CO2 from air.","PeriodicalId":33706,"journal":{"name":"Carbon Energy","volume":"7 1","pages":""},"PeriodicalIF":19.5,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cey2.646","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0