Green Carbon最新文献_第7页

Advances in electrocarboxylation reactions with CO2 二氧化碳电羧化反应的进展

Green Carbon Pub Date : 2024-03-01 DOI: 10.1016/j.greenca.2024.02.001

Junjun Mao , Yubo Wang , Bo Zhang , Yang Lou , Chengsi Pan , Yongfa Zhu , Ying Zhang

引用次数: 0

Monolithic metal-based/porous carbon nanocomposites made from dissolved cellulose for use in electrochemical capacitor 由溶解纤维素制成的单片金属基/多孔碳纳米复合材料用于电化学电容器

Green Carbon Pub Date : 2024-03-01 DOI: 10.1016/j.greenca.2024.01.001

Madhav P. Chavhan , Arjeta Kryeziu , Somenath Ganguly , Julien Parmentier

{"title":"Monolithic metal-based/porous carbon nanocomposites made from dissolved cellulose for use in electrochemical capacitor","authors":"Madhav P. Chavhan , Arjeta Kryeziu , Somenath Ganguly , Julien Parmentier","doi":"10.1016/j.greenca.2024.01.001","DOIUrl":"10.1016/j.greenca.2024.01.001","url":null,"abstract":"<div>Porous metal-based carbon nanocomposites, with a monolithic shape, were prepared by a one-pot synthesis from dissolved cellulose and metallic salts using a simple, cheap, and environmentally friendly route. Their potential performances as electrochemical capacitors were tested with three metal precursors (M = Cu, Mn, and Fe) with two loadings and in an asymmetric cell for the Fe-based carbon material. Interestingly, here soluble metal precursors were not deposited on a hard cellulose template but mixed in a precooled concentrated NaOH solution where cellulose was previously dissolved, allowing for a good dispersion of the metallic species. After a freezing step where concomitant cellulose regeneration and pore ice-templating phenomena took place, followed by a carbonization step, the mixture led to a porous carbon monolith embedding well-dispersed metal-based nanoparticles having a diameter below 20 nm and present as metallic, oxide, or carbide phase(s) according to the element M. These materials were characterized by different physicochemical techniques and electrochemical tests. Their performances as supercapacitors are discussed in light of the specific behaviour of the metal-based phase and its influence on the carbon matrix properties such as mesopore formation and carbon graphitization. An asymmetric energy storage cell assembled with a Fe-based carbon electrode against a carbon xerogel electrode derived from a phenolic resin shows specific energy and power of 18.3 Wh kg−1 at 5 mA cm−2 and 1.6 kW kg−1 at 25 mA cm−2, respectively.</div>","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"2 1","pages":"Pages 109-117"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950155524000016/pdfft?md5=9b096af3d357598caff35ee6df80d8ac&pid=1-s2.0-S2950155524000016-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139455174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Carbon nanotube-based photothermal membrane for efficient cold air heating and removal of particulate matter and airborne bacteria 基于碳纳米管的光热膜，用于高效冷空气加热和去除颗粒物及空气中的细菌

Green Carbon Pub Date : 2024-03-01 DOI: 10.1016/j.greenca.2023.12.002

Weichao Dong , Lina Huang , Xiangju Song , Yan Zhang , Mengke Liu , Zhenzhen Ren , Long Pang , Hui Peng , Heqing Jiang

{"title":"Carbon nanotube-based photothermal membrane for efficient cold air heating and removal of particulate matter and airborne bacteria","authors":"Weichao Dong , Lina Huang , Xiangju Song , Yan Zhang , Mengke Liu , Zhenzhen Ren , Long Pang , Hui Peng , Heqing Jiang","doi":"10.1016/j.greenca.2023.12.002","DOIUrl":"10.1016/j.greenca.2023.12.002","url":null,"abstract":"<div>Indoor heating results in high energy consumption and severe atmospheric pollution. Although the development of solar air heaters provides a sustainable route for indoor thermal comfort, such heaters still face challenges in terms of adequate heat exchange and filtering of atmospheric pollutants. Inspired by solar-driven interfacial evaporation, we propose a multifunctional carbon nanotube-based photothermal membrane for efficient cold air heating and purification via ventilation. Carbon nanotubes endow the membrane with high light absorption and thermal conversion capabilities, thereby sufficiently heating the approaching cold air. With the hierarchical structure formed by phase inversion, the thin upper skin of the composite membrane intercepts micropollutants via the size-sieving effect, whereas the finger-like pores and interpenetrating macrovoids inside the membrane ensure that the heated clear air passes through quickly. A proof-of-principle experiment indicated a cold airflow of 1 L/min across the membrane, yielding a temperature increase of ca. 37 °C as well as a PM 2.5 rejection always higher than 93%. Further antibacterial experiments demonstrated that the membrane effectively removed airborne bacteria. This multifunctional carbon nanotube-based photothermal membrane with specific microstructures not only improves the indoor living quality but also provides a sustainable development scheme to coordinate the relationship among energy utilization, building heating, and air purification.</div>","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"2 1","pages":"Pages 101-108"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950155523000319/pdfft?md5=f2f1c5deb6c9737e34311dd97d3e2eeb&pid=1-s2.0-S2950155523000319-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139190461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recycled polymer: Green roads for polyester plastics 再生聚合物：聚酯塑料的绿色之路

Green Carbon Pub Date : 2024-03-01 DOI: 10.1016/j.greenca.2024.01.004

Rulin Yang , Guangqiang Xu , Wenjie Tao , Qinggang Wang , Yong Tang

引用次数: 0

Generation and transformation of α-oxy carbene intermediates enabled by copper-catalyzed carbonylation 铜催化羰基化作用下 α-氧碳烯中间体的生成和转化

Green Carbon Pub Date : 2024-03-01 DOI: 10.1016/j.greenca.2024.01.002

Yang Yuan , Xiao-Feng Wu

{"title":"Generation and transformation of α-oxy carbene intermediates enabled by copper-catalyzed carbonylation","authors":"Yang Yuan , Xiao-Feng Wu","doi":"10.1016/j.greenca.2024.01.002","DOIUrl":"10.1016/j.greenca.2024.01.002","url":null,"abstract":"<div>Since the Fischer-Tropsch reaction was discovered by Otto Roelen in 1938, transition metal-catalyzed carbonylation reactions come in as one of the most important methods for preparing carbonyl-containing and carbon chain-increased compounds. As a result, the field of carbonylation research has received considerable attention over the past decades and continues to increase. With the continuous development of carbonylation and the in-depth study of the mechanism, more mechanistic details and variations have been revealed, which provide more possibilities for organic synthesis. Recently, copper catalysis has been introduced to the carbonylative functionalization of alkenes, thus enabling the rapid assembly of functionalized carbonyl compounds from simple starting materials. In this Account, we summarize the new findings in the Cu-catalyzed borocarbonylation of alkenes based on the generation and transformation of α-oxy carbene intermediates. We believe that the results presented in this Account will further inspire the design of new carbonylation reactions.</div>","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"2 1","pages":"Pages 70-80"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950155524000089/pdfft?md5=d0d133782f96e9961617cc31ab9465a6&pid=1-s2.0-S2950155524000089-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139636937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synergistic oxidation-reforming of biomass for high quality syngas production based on a bifunctional catalyst 基于双功能催化剂的生物质协同氧化-转化技术，用于生产优质合成气

Green Carbon Pub Date : 2024-03-01 DOI: 10.1016/j.greenca.2024.01.005

Tao He , Dan Zhang , Wenqing Chen , Zeng Liu , Ruidong Zhao , Jianqing Li , Jingli Wu , Zhiqi Wang , Jinhu Wu

{"title":"Synergistic oxidation-reforming of biomass for high quality syngas production based on a bifunctional catalyst","authors":"Tao He , Dan Zhang , Wenqing Chen , Zeng Liu , Ruidong Zhao , Jianqing Li , Jingli Wu , Zhiqi Wang , Jinhu Wu","doi":"10.1016/j.greenca.2024.01.005","DOIUrl":"10.1016/j.greenca.2024.01.005","url":null,"abstract":"<div>Conventional O2 gasification for low-rank biomass/sludge conversion is prone to high CO2 concentrations in the syngas because of its high O content and low calorific value. This study establishes a synergistic oxidation-reforming reaction route for the conversion of low-rank carbon-containing resources into high-quality syngas. The efficient oxidation-reforming reaction is based on the bifunctional catalyst NiO–Fe2O3/Al2O3, which includes Fe2O3 oxidation sites and NiO reforming sites. Hydrogen temperature-programmed reduction, together with X-ray diffraction and X-ray photoelectron spectroscopy experiments, demonstrated that the two functional active sites have strong interactions with the support, leading to efficient cooperation between the oxidation reaction and reforming reaction with regards to both the reaction sequence and C/H/O element balance. Syngas produced from biomass/sludge based on oxidation-reforming reactions has an extremely low CO2 concentration of approximately 3%, and the valid gas (CO, H2) concentration exceeds 95%. The valid gas yield of walnut shell reached 1452.9 mL/g, the total gas yield was 1507.2 mL/g, and the H2/CO ratio was 1.02, which are all very close to the theoretical maximum values of 1553.1 mL/g and 1.01, respectively, demonstrating that the inherent CO2/H2O along with CH4/tar species were efficiently converted to H2 and CO through oxidation-reforming reactions. During a 60-cycle test, NiO-Fe2O3/Al2O3 exhibited good redox stability.</div>","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"2 1","pages":"Pages 118-123"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950155524000119/pdfft?md5=dc13aa4ebe9b7d9cf410a2abf2fe312f&pid=1-s2.0-S2950155524000119-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139882178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unveiling the relationship between structural evaluation and catalytic performance of InOOH during electroreduction of CO2 to formate 揭示 InOOH 在将 CO2 电还原为甲酸盐过程中的结构评估与催化性能之间的关系

Green Carbon Pub Date : 2024-03-01 DOI: 10.1016/j.greenca.2024.02.003

Caijun Deng , Chaofan Qi , Xiaomin Wu, Guohua Jing, Huawang Zhao

{"title":"Unveiling the relationship between structural evaluation and catalytic performance of InOOH during electroreduction of CO2 to formate","authors":"Caijun Deng , Chaofan Qi , Xiaomin Wu, Guohua Jing, Huawang Zhao","doi":"10.1016/j.greenca.2024.02.003","DOIUrl":"10.1016/j.greenca.2024.02.003","url":null,"abstract":"<div>The electrochemical CO2 reduction reaction (ECO2RR) to formate is perceived as a technoeconomic pathway for transforming renewable electricity into fuels. However, the indeterminate mechanism underlying structural self-reconstruction obstructs the strategic design of a high-performance In catalyst for the ECO2RR. In this study, we chose InOOH as the model catalyst to illustrate the dynamic structure of In-based catalysts during reconstruction in the ECO2RR. The findings of the current study indicate that the in situ electrochemical reconstruction of crystalline InOOH results in the creation of crystalline In clusters/InOOH, followed by In/InOOH heterostructures, and finally, metallic In over time. The efficiencies of the different phases conformed to the sequence: In clusters/InOOH > In/InOOH heterostructures > metallic In. This progression leads to a continuous drop in maximum current density and Faradaic efficiency from 29.6 mA/cm2 and 87% to 6.3 mA/cm2 and 75%, respectively with time extending to 7200 s, at –1.0 V relative to the reversible hydrogen electrode. Our in situ characterization and theoretical studies highlighted the crucial role of the In-cluster/InOOH interface in CO2 activation and conversion.</div>","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"2 1","pages":"Pages 124-130"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950155524000144/pdfft?md5=fef221398783c8892b6e441ccd71a459&pid=1-s2.0-S2950155524000144-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140278525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pilot-scale acetone-butanol-ethanol fermentation from corn stover 利用玉米秸秆进行丙酮-丁醇-乙醇中试规模发酵

Green Carbon Pub Date : 2024-03-01 DOI: 10.1016/j.greenca.2024.02.004

Changsheng Su , Di Cai , Honggang Zhang , Yilu Wu , Yongjie Jiang , Yicheng Liu , Changwei Zhang , Chunling Li , Peiyong Qin , Tianwei Tan

{"title":"Pilot-scale acetone-butanol-ethanol fermentation from corn stover","authors":"Changsheng Su , Di Cai , Honggang Zhang , Yilu Wu , Yongjie Jiang , Yicheng Liu , Changwei Zhang , Chunling Li , Peiyong Qin , Tianwei Tan","doi":"10.1016/j.greenca.2024.02.004","DOIUrl":"10.1016/j.greenca.2024.02.004","url":null,"abstract":"<div>Biobutanol is an advanced biofuel that can be produced from excess lignocellulose via acetone-butanol-ethanol (ABE) fermentation. Although significant technological progress has been made in this field, attempts at large-scale lignocellulosic ABE production remain scarce. In this study, 1 m3 scale ABE fermentation was investigated using high inhibitor tolerance Clostridium acetobutylicum ABE-P1201 and steam-exploded corn stover hydrolysate (SECSH). Before expanding the fermentation scale, the detoxification process for SECSH was simplified by process engineering. Results revealed that appropriate pH management during the fed-batch cultivation could largely decrease the inhibition of the toxic components in undetoxified SECSH to the solventogenesis phase of the ABE-P1201 strains, avoiding “acid crash”. Therefore, after naturalizing the pH by Ca(OH)2, the undetoxified SECSH, without removal of the solid components, reached 17.68 ± 1.30 g/L of ABE production with 0.34 ± 0.01 g/g of yield in 1 L scale bioreactor. Based on this strategy, the fermentation scale gradually expanded from laboratory-scale apparatus to pilot-scale bioreactors. Finally, 17.05 ± 1.20 g/L of ABE titer and 0.32 ± 0.01 g/g of ABE yield were realized in 1 m3 bioreactor, corresponding to approximately 145 kg of ABE production from 1 t of dry corn stover. The pilot-scale ABE fermentation demonstrated excellent stability during repeated operations. This study provided a simplified ABE fermentation strategy and verified the feasibility of the pilot process, providing tremendous significance and a solid foundation for the future industrialization of second-generation ABE plants.</div>","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"2 1","pages":"Pages 81-93"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950155524000168/pdfft?md5=38631e5621876f247cc7ff6d1ca49710&pid=1-s2.0-S2950155524000168-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140279149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimization of two-dimensional solid-state electrolyte–anode interface by integrating zinc into composite anode with dual-conductive phases 通过在双导电相复合阳极中加入锌优化二维固态电解质-阳极界面

Green Carbon Pub Date : 2024-03-01 DOI: 10.1016/j.greenca.2024.02.005

Yijun Zhong, Chencheng Cao, Leqi Zhao, Moses Oludayo Tadé, Zongping Shao

{"title":"Optimization of two-dimensional solid-state electrolyte–anode interface by integrating zinc into composite anode with dual-conductive phases","authors":"Yijun Zhong, Chencheng Cao, Leqi Zhao, Moses Oludayo Tadé, Zongping Shao","doi":"10.1016/j.greenca.2024.02.005","DOIUrl":"10.1016/j.greenca.2024.02.005","url":null,"abstract":"<div>Solid-state electrolytes (SSEs) are a solution to safety issues related to flammable organic electrolytes for Li batteries. Insufficient contact between the anode and SSE results in high interface resistance, thus causing the batteries to exhibit high charging and discharging overpotentials. Recently, we reduced the overpotential of Li stripping and plating by introducing a high proportion of dual-conductive phases into a composite anode. The current study investigates the interface resistance and stability of a composite electrode modified with Zn and a lower proportion of dual-conductive phases. Zn-cation-adsorbed Prussian blue is synthesized as an intermediate component for a Zn-modified composite electrode (Li-FeZnNC). The Li-FeZnNC symmetric cell presents a lower interface resistance and overpotential compared with Li-FeNC (without Zn modification) and Li-symmetric cells. The Li-FeZnNC symmetric cell shows high electrochemical stability during Li stripping and plating at different current densities and high stability for 200 h. Full batteries with a Li-FeZnNC composite anode, garnet-type SSE, and LiFePO4 cathode show low charging and discharging overpotentials, a capacity of 152 mAh g−1, and high stability for 200 cycles.</div>","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"2 1","pages":"Pages 94-100"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950155524000156/pdfft?md5=34246390f3ba5b7f5d5f0b1fc12b9caf&pid=1-s2.0-S2950155524000156-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140083221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cellulosomal hemicellulases: Indispensable players for ensuring effective lignocellulose bioconversion 纤维素体半纤维素酶：确保木质纤维素有效生物转化不可或缺的角色

Green Carbon Pub Date : 2024-03-01 DOI: 10.1016/j.greenca.2024.01.003

Min Xiao , Ya-Jun Liu , Edward A. Bayer , Akihiko Kosugi , Qiu Cui , Yingang Feng

{"title":"Cellulosomal hemicellulases: Indispensable players for ensuring effective lignocellulose bioconversion","authors":"Min Xiao , Ya-Jun Liu , Edward A. Bayer , Akihiko Kosugi , Qiu Cui , Yingang Feng","doi":"10.1016/j.greenca.2024.01.003","DOIUrl":"10.1016/j.greenca.2024.01.003","url":null,"abstract":"<div>The bioconversion of lignocellulose has attracted global attention, due to the significant potential of agricultural and forestry wastes as renewable zero-carbon resources and the urgent need for substituting fossil carbon. The cellulosome system is a multi-enzyme complex produced by anaerobic bacteria, which comprises cellulases, hemicellulases, and associated enzymatic and non-enzymatic components that promote biomass conversion. To enhance their efficiency in degrading recalcitrant lignocellulosic matrices, cellulosomes have been employed to construct biocatalysts for lignocellulose bioconversion, such as consolidated bioprocessing and consolidated bio-saccharification. Hemicelluloses, the second most abundant polysaccharides in plant cell walls, hold valuable application potential but can also induce inhibitory effects on cellulose hydrolysis, thus highlighting the indispensable roles of hemicellulases within the cellulosome complex. This review evaluated current research on cellulosomal hemicellulases, comparing their types, abundance, and regulation, primarily focusing on eight known cellulosome-producing species of different origins. We also reviewed their growth conditions, their hemicellulose-degrading capabilities, and the inhibitory effects of hemicellulose on cellulosome-based lignocellulose saccharification. Finally, we proposed strategies for targeted enhancement of hemicellulase in cellulosomes to improve lignocellulose bioconversion in future studies.</div>","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"2 1","pages":"Pages 57-69"},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950155524000090/pdfft?md5=824f7db0052231054d9f443790d2ceff&pid=1-s2.0-S2950155524000090-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139632894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0