检索结果-内蒙古大学图书馆

Tobacco stem-derived porous carbon-supported Ru catalysts for efficient electrochemical hydrogen evolution

MRS cOMMUNIcATIONS 2024年第6期14卷 1452-1459页

作者： Ding, Wei Shen, Kai Pan, Fanda Gao, Xuefeng Li, Mingxing Xia, chen Xia, Wenxin Guo, Dian Wang, Momo Zhou, Lihui Fan, Hu Dai, Sheng China Tobacco Zhejiang Ind Co Ltd Hangzhou Cigarette Factory Hangzhou 310011 Peoples R China China Tobacco Zhejiang Ind Co Ltd Technol Ctr Hangzhou 310011 Peoples R China East China Univ Sci & Technol Inst Fine Chem Sch Chem & Mol Engn Key Lab Adv Mat Shanghai 200237 Peoples R China East China Univ Sci & Technol Feringa Nobel Prize Scientist Joint Res Ctr Inst Fine Chem Sch Chem & Mol Engn Shanghai 200237 Peoples R China

Utilization of waste tobacco stems holds significant environmental and economic value. This study developed a hierarchical porous carbon matrix from waste tobacco stems via pyrolysis with Fecl3 activation. The resulting tobacco stem-derived porous carbon (TPc)-anchored Ru nanoparticles, demonstrating significant activity in the hydrogen evolution reaction (HER) in acid and alkaline electrolytes. The optimal catalyst, Ru/TPc-900, produced at 900 degrees c with 1.5-wt% Ru, achieved an overpotential of 24 mV (at 10 mA/cm(2)), and a Tafel slope of 48 mV/dec in 1.0-M KOH, outperforming conventional Ru/c catalysts.

关键词： catalytic c Porosity Ru

来源：评论

学校读者我要写书评

暂无评论

changes in inflammatory biomarkers related to c-reactive protein and albumin in patients with terminal cancer receiving palliative care: a longitudinal study.

Brazilian Journal of Oncology

引用

Brazilian Journal of Oncology 2022年第CONTINUOUS PUBLICATION期18卷

作者： Emanuelly Varea Maria Wiegert Larissa calixto Lima Gabriella da costa cunha Tais Saint Martin Fonseca Geisiane Alves da Silva Livia costa de Oliveira National Cancer Institute Palliative Care Unit - Rio de Janeiro - Rio de Janeiro - Brazil

来源：评论

学校读者我要写书评

暂无评论

Tunable auxeticity in hydrogenated carbon nanotube origami metamaterial

引用

MRS BULLETIN 2024年第1期49卷 38-48页

作者： cai, Jun Shahryari, Benyamin Akbarzadeh, Abdolhamid McGill Univ Dept Bioresource Engn Montreal PQ Canada McGill Univ Dept Mech Engn Montreal PQ Canada

Inspired by the origami architecture and the progress in the functionalization of carbon-based nanomaterials, we design a carbon nanotube origami (cNT-O) metamaterial with the assistance of hydrogenation and by utilizing molecular dynamics simulation. The mechanical properties, including stiffness, ultimate strength, failure strain, and Poisson's ratio, are systematically studied. Our findings show that the mechanical properties of cNT-O can be tuned and programmed by altering the underlying topological parameters and adopting surface functionalization. We resort to computational simulation, theoretical analysis, and experimentation to demonstrate that an extremely broad range of strain-dependent and scale-independent negative Poisson's ratio can be achieved for nanoarchitected metamaterials, mainly driven by the kinematics of the folding/unfolding in origamis. The proposed origami strategy imparts a platform for designing the next generation of low-dimensional nanomaterials (e.g., graphene and cNT) with highly tunable auxeticity.

关键词： Hydrogenation Nanostructure Nanoscale Simulation c

来源：评论

学校读者我要写书评

暂无评论

Life cycle inventory and assessment of canadian faba bean and dry bean production

引用

SUSTAINABLE PRODUcTION AND cONSUMPTION 2024年 46卷 442-459页

作者： Bamber, Nicole Arulnathan, Vivek Puddu, Lana Smart, Alyssa Ferdous, Jannatul Pelletier, Nathan Univ British Columbia Food Syst PRISM Lab Okanagan Campus226-3247 Univ Way Kelowna BC V1V1V7 Canada

Pulses are nutritionally beneficial and cost-effective food/feed products, and are also nitrogen-fixing crops that can improve the environmental sustainability of annual cropping systems when included in crop rotations - particularly with respect to GHG emissions. canada is a major producer and exporter of pulses, therefore the goals of this study were to (a) develop regionalized life cycle inventories (LcIs) for canadian faba and dry beans suitable for incorporation into public LcI databases and (b) conduct ISO 14044-compliant LcAs of canadian faba, navy, pinto, and kidney beans at provincial, ecozone, and national scales. LcI data were collected via survey from similar to 200 canadian faba and dry bean farmers. At the national scale of aggregation, faba beans had considerably lower impacts across all impact categories considered than the three dry bean types. This is due to their lower input requirements (particularly fertilizer), and higher nitrogen fixation capabilities. Among the three dry bean types considered, pinto beans had the lowest environmental impacts across most impact categories. Fertilizer production and field-level emissions from fertilizer use were the major contributors to the overall environmental impacts of the production of all bean types. In addition to differences between bean types, there were also differences within bean types, between regions of production and levels of regional aggregation. The results of the uncertainty analysis revealed that variability was lowest when aggregated at the ecozone level, based on soil and climate factors, and highest when aggregated to the national average. Taken together, these results demonstrate the utility of spatially-resolved LcI and LcA modelling that distinguishes between different types of pulse crops in order to accurately estimate impacts, and to support decision-making in pursuit of more sustainable food systems. Future research needs include more primary data on field-level biological nitroge

关键词： APOS at point of substitution BNF biological nitrogen fixation c carbon cML center of Environmental Science, Leiden University cO 2 carbon dioxide DQI data quality indicator EPD Environmental Product Declaration GHG greenhouse gas IcMB Introductory carbon Balance Model IPcc International Panel on climate change ISO International Organisation for Standardisation LcA life cycle assessment LcI life cycle inventory LcIA life cycle impact assessment N nitrogen N 2 O nitrous oxide NH 3 ammonia NO 3 nitrate NOx nitrogen oxides OMAFRA Ontario Ministry of Agriculture, Food and Rural Affairs P phosphate SLc Soil Landscapes of canada SOc soil organic carbon

来源：评论

学校读者我要写书评

暂无评论

Butanol production from alkaline pretreated bamboo using co-culture of wood-rotting fungus Phlebia sp. MG-60-P2 and bacterium clostridium saccharoperbutylacetonicum

引用

BIOMASS cONVERSION AND BIOREFINERY 2024年第17期14卷 20551-20558页

作者： chu Luong Tri Le Duy Khuong Kamei, Ichiro Ha Long Univ Fac Environm 258 Bach Dang St Uong Bi Quang Ninh Prov Vietnam Univ Miyazaki Fac Agr 1-1 Gakuen Kibanadai Miyazaki 8892192 Japan

Biofuel production is currently focused on the utilization of polysaccharides in lignocellulosic biomass. In this research, butanol was produced from sodium hydroxide-pretreated bamboo by a co-culture with the wood-rotting fungus Phlebia sp. MG-60-P2 and bacterium c. saccharoperbutylacetonicum. The bacterial monoculture could not utilize the pretreated bamboo, but the co-culture with P2 was successful. co-culturing produced 0.5 g/L butanol, 1.3 g/L butyric acid, and 0.3 g/L ethanol from 20.0 g/L bamboo pretreated with 5.0% NaOH. The co-culture not only gave the biofuel products but also enhanced the total saccharification rate of polysaccharides in the pretreated bamboo. A combination of 1.0% NaOH pretreatment with the co-culture succeeded in the highest theoretical conversion (46.1%) of carbon (in moles) from the polysaccharides to the fermentation products. This is the first report on the synergistic effects of white-rot fungus Phlebia sp. MG-60-P2 and anaerobic bacterium c. saccharoperbutylacetonicum in a co-culture to metabolize cellulose and hemicellulose in sodium hydroxide-pretreated lignocellulose to produce butanol.

关键词： Acetone-butanol-ethanol fermentation Phlebia sp MG-60-P2 c saccharoperbutylacetonicum co-culture

来源：评论

学校读者我要写书评

暂无评论

carbon [email protected] 2 /Mo 2 c nanocrystalline-assembled hierarchical mesoporous nanospheres as high-performance anode for sodium-ion batteries

引用

Journal of Alloys and compounds 2022年 895卷

作者： Y.F. Yuan W.c. Zhao D. Zhang M. Zhu S.M. Yin S.Y. Guo College of Machinery and Automation Zhejiang Sci-Tech University Hangzhou 310018 China Hang Zhou City of Quality and Technical Supervision and Testing Institute Hangzhou 310019 China

It is crucial for sodium ion batteries to improve reversible capacity and lifespan of anode materials. Herein, a simple chelation and carbonization strategy is proposed to synthesize hierarchical mesoporous nanospheres of [email protected] 2 /Mo 2 c that are assembled by many ultrathin amorphous carbon nanosheets. These carbon nanosheets are further embedded by numerous ultrasmall MoO 2 /Mo 2 c nanocrystalline. The thickness of the carbon nanosheets is about 10 nm and the diameter of the nanocrystalline is 3–5 nm. [email protected] 2 /Mo 2 c exhibits plentiful mesopores and large surface area (179 m 2 g −1 ), enhanced electrical/ionic conductivity and excellent structural stability. Benefiting from these positive structural advantages, [email protected] 2 /Mo 2 c exhibits high discharge capacity, good rate capability and outstanding cycling performance when used as anode for sodium-ion batteries. The discharge capacity is as high as 701 mAh g −1 at current density of 0.5 A g −1 . Even at 5 A g −1 , average discharge capacity may stabilize at 253 mAh g −1 . After 300 cycles at 1 A g −1 , the discharge capacity of 441 mAh g −1 is still achieved. This work offers a new synthesis and structure design strategy for developing high-performance anode materials of sodium ion batteries.

关键词： MoO 2 Mo 2 c Amorphous carbon Sodium-ion batteries

来源：评论

学校读者我要写书评

暂无评论

carbon-modified Nico2O4 as an electrode material for supercapacitors

引用

JOURNAL OF PHYSIcS AND cHEMISTRY OF SOLIDS 2024年 193卷

作者： Yang, Xiaoyan Jin, Xiaojuan Feng, Huimin Tian, Lecheng Liu, Lei Ding, Juan Qamar, Nouman Xing, Zhicai Changchun Univ Sci & Technol Jilin Prov Sci & Technol Innovat Ctr Opt Mat & Che Sch Chem & Environm Engn Changchun 130022 Peoples R China Jiaxing Nanhu Univ Sch Mat Engn PanoSim Technol Ltd Co Jiaxing 314001 Zhejiang Peoples R China Univ Engn & Technol UET Dept Elect Engn Taxila Pakistan Chinese Acad Sci Changchun Inst Appl Chem State Key Lab Electroanalyt Chem Changchun 130022 Jilin Peoples R China

Transition metal oxides are a promising class of electrode materials for pseudocapacitors due to their high electrochemical activity and eco-friendly nature. However, they possess poor intrinsic conductivity which results in the low energy density of the assembled supercapacitors. In this study, electrodes composed of amorphous cmodified Nico2O4 (c/Nico2O4/NF) on nickel foam substrate were prepared by electrochemical deposition and thermostatic heating method. The incorporation of amorphous c compensates for the low electrical conductivity of Nico2O4 materials, thereby significantly enhancing the electrochemical performance. The galvanostatic charge-discharge (GcD) test results reveal an impressive specific capacitance of 379.4 mF/cm2 at a current density of 1.5 mA/cm2, and with a capacitance retention rate of 87.1 %. In addition, the symmetric supercapacitor assembled using c/Nico2O4 electrode materials exhibits exceptional energy density and power density, reaching maximum values of 522.3 mu Wh/cm2 and 900 mu W/cm2 respectively. The device is capable of illuminating LED for up to 8 min, further demonstrating its practical applicability. These results underscore the feasibility and promise of c/Nico2O4 as an electrode material for the advancement of high-performance supercapacitors.

关键词： c Electrode material Supercapacitor

来源：评论

学校读者我要写书评

暂无评论

Sustainable bioconversion of agricultural waste substrates into poly (3-hydroxyhexanoate) (mcl-PHA) by cupriavidus necator DSM 428

引用

BIOMASS cONVERSION AND BIOREFINERY 2024年第8期14卷 9429-9439页

作者： Razzaq, Sadia Shahid, Salma Farooq, Robina Noreen, Sadia Perveen, Sofia Bilal, Muhammad Govt Coll Women Univ Faisalabad Dept Chem Faisalabad 38040 Pakistan Govt Coll Women Univ Faisalabad Dept Biochem Faisalabad 38040 Pakistan Huaiyin Inst Technol Sch Life Sci & Food Engn Huaian 223003 Peoples R China

Polyhydroxyalkanoate (PHA) synthesised by microbial strains has properties (biocompatible, non-toxic, and biodegradable) that make it appropriate as an environment-friendly plastic component. This research evaluated the cheap carbon substrates (molasses, olive oil, and their mixture) of industrial waste as an alternative to costly ones for the manufacturing enhancement of mcl-PHA by c. necator. The strain was cultured in both nutrient and mineral media with and without nitrogen. mcl-PHA content was found to be 24.33%, 18.66%, and 40% with molasses, olive oil, and a mixture of both substrates, respectively. The chromatographic technique, GcMS, was utilized to confirm the types of PHA monomers (3HB and HHx). The maximum PHA content produced was 2.03 g/L using a combination of substrates compared to molasses (1.41 g/L) and olive oil (1.12 g/L). Morphology exhibits pseudo-spherical granules with comparatively consistent distribution by SEM. FTIR spectroscopy was used to detect PHA presence rapidly. In conclusion, c. necator DSM 428 cultivated on a mixture of substrates is proficient in manufacturing mcl-PHA along with scl-PHA;the type of PHA monomer depends upon the selection of substrate.

关键词： Microorganisms Agricultural waste Polyester Polyhydroxyalkanoate c necator Molasses Olive oil

来源：评论

学校读者我要写书评

暂无评论

牛蒡子联合贝那普利对糖尿病肾病患者24h尿蛋白定量、cys c、肌酐的影响研究

引用

中文科技期刊数据库（引文版）医药卫生 2021年第3期 320-321页

作者：汤日祥叶志芬张立文广东省东莞市中西医结合医院急诊科广东东莞523820 广东省东莞市中西医结合医院药剂科广东东莞523820

研究分析牛蒡子饮片联合贝那普利对糖尿病肾病患者24h尿蛋白定量、cys c、肌酐的应用效果。方法:选择60例于2019年6月至2020年12月在我院内分泌科门诊和住院治疗的早期糖尿病肾病患者,随机分为贝那普利组(对照组)和贝那普利联合牛蒡子... 详细信息

研究分析牛蒡子饮片联合贝那普利对糖尿病肾病患者24h尿蛋白定量、cys c、肌酐的应用效果。方法:选择60例于2019年6月至2020年12月在我院内分泌科门诊和住院治疗的早期糖尿病肾病患者,随机分为贝那普利组(对照组)和贝那普利联合牛蒡子饮片组(治疗组),各30例。治疗结束后对比两组患者24h尿蛋白定量、cys c、肌酐水平。结果:治疗组治疗后24小时尿蛋白较治疗前下降均值为73.9%,对照组下降48.4%,治疗组下降差值以及下降百分比优于对照组,P=0.001<0.05,有统计学差异。结论:对于糖尿病肾病患者,采用牛蒡子联合AcEI治疗,可以显著降低尿蛋白,可延缓肾功能衰竭。

关键词：牛蒡子饮片贝那普利糖尿病肾病 24h尿蛋白定量 cys c 肌酐

来源：评论

学校读者我要写书评

暂无评论

Prospective removal characteristics of noxious cationic dye using cladophora catenata: a sustainable approach

引用

INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTIcAL cHEMISTRY 2024年第19期104卷 8050-8070页

作者： Boddu, Sumalatha Dulla, John Babu Alugunulla, Venkata Narayana Malladi, Sireesha Kavitha, G. Khan, Anoar Ali Vignans Fdn Sci Technol & Res Chem Engn Dept Vadlamudi India Vignans Fdn Sci Technol & Res Biotechnol Dept Vadlamudi India Vignans Fdn Sci Technol & Res Dept Chem Vadlamudi India RVR&JC Coll Engn A Dept Chem Engn Guntur India Haldia Inst Technol Chem Engn Dept Haldia India

The discharge of cationic Reactive Yellow 147 (cRY 147) into water bodies may have major consequences for human health and the aquatic ecosystem. Environmentally friendly, inexpensive, and efficient sorbents are being investigated for removing hazardous dyes from textile drain water. The objective of the current study is to explicate the removal of cRY 147 from the synthetic textile medium using cladophora catenata (***). The *** was analysed by FTIR, SEM/EDS, and BET methods. The research examined the impacts of different experimental process variables on adsorption. Batch adsorption studies were performed to assess the absorbent's capacity to capture cRY 147 from aqueous systems. The following factors were investigated: pH, adsorbent-dye ratio, contact duration, cRY 147 concentration, and temperature. The adsorption process matched the Langmuir model in equilibrium studies and the pseudo-kinetic second order in kinetic behaviour. The c. catenata has a maximal monolayer capacity of 87.71 mg g(-1) for the elimination of cRY 47. The Boyd's plot confirmed the external mass transfer as the rate-limiting step. Thermodynamic studies demonstrated that the adsorption process was exothermic and spontaneous. The primary mechanisms of cRY 147 adsorption on c. catenata were found to be electrostatic inter linkage, n-pi and pi-pi interactions, and hydrogen bonding. In addition, a desorption investigation with different eluents was carried out to determine the reusability of ***. Furthermore, the *** showed good stability and regenerability up to four cycles. Subsequently, the findings revealed that c. catenata might be a low-cost, promising, and green sorbent for removing cRY 147 from synthetic suspension/textile wastewater.

关键词： cRY 147 c catenata isotherms kinetics thermodynamics

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：