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Direct pyrolysis to convert biomass to versatile 3D carbon nanotubes/mesoporous carbon architecture:conversion mechanism and electrochemical performance

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Frontiers of Chemical Science and Engineering 2023年第6期17卷 679-690页

作者： Chenxi Xu shunli Li Zhaohui Hou Liming Yang Wenbin Fu Fujia Wang Yafei Kuang Haihui Zhou Liang Chen College of Chemistry and Chemical Engineering Hunan UniversityChangsha 410082China Key Laboratory of Hunan Province for Advanced Carbon-Based Functional Materials School of Chemistry and Chemical EngineeringHunan Institute of Science and TechnologyYueyang 414006China Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle Nanchang Hangkong UniversityNanchang 330063China School of Materials Science and Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

The massive conversion of resourceful biomass to carbon nanomaterials not only opens a new avenue to effective and economical disposal of biomass,but provides a possibility to produce highly valued functionalized carbon-based electrodes for energy storage and conversion *** this work,biomass is applied to a facile and scalable one-step pyrolysis method to prepare three-dimensional(3D)carbon nanotubes/mesoporous carbon architecture,which uses transition metal inorganic salts and melamine as initial *** role of each employed component is investigated,and the electrochemical performance of the attained product is *** component and precise regulation of their dosage is proven to be the key to successful conversion of biomass to the desired carbon *** to the unique 3D architecture and integration of individual merits of carbon nanotubes and mesoporous carbon,the as-synthesized carbon nanotubes/mesoporous carbon hybrid exhibits versatile application toward lithium-ion batteries and Zn-air ***,a significant guidance on effective conversion of biomass to functionalized carbon nanomaterials can be shown by this work.

关键词： biomass direct pyrolysis 3D CNTs MC hybrid lithium-ion batteries Zn-air batteries

Influence of Crucible Material on the Microstructure and Properties of Iron Rich Glass-Ceramics

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Journal of Wuhan University of Technology(Materials Science) 2018年第1期33卷 49-55页

作者：邓磊波张雪峰 LI Baowei JIA Xiaolin ZHANG Mingxing OUYANG shunli Key Laboratory of Integrated Exploitation of Bayan Obo Multi-Metal Resources Inner Mongolia University of Science and Technology School of Mathematics Physics and Biological Engineering Inner Mongolia University of Science &Technology School of Material Science and Engineering Zhengzhou University

Slag glass melting is usually performed on a laboratory scale in crucibles, which are economically viable tools for the production of slag glass-ceramics. In this work, quaternary CaO-Al2O3-MgO-SiO2（CAMS） glass-ceramics were prepared by melting the tailing of Bayan Obo mine tailing, blast furnace slag, and fly ash in alumina and graphite crucibles. The effect of the crucible material on the microstructure and properties of the glass-ceramics was investigated using differential scanning calorimetry, X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy and inductively coupled plasma atomic emission spectroscopy. Results indicated that the contents of Al2O3 and Fe2O3 in the initial glass were significantly changed by the corrosion of the alumina crucibles during the glass melting process and by the reducing action of the graphite crucibles. The main crystal phases of glass-ceramics melted in alumina crucibles and graphite crucibles were Ca（Mg, Fe, Al）（Si, Al）2O6, coesite and Ca（Mg, Al）（Si, Al）2O6, respectively. According to these findings, we conclude that the microstructure and properties of the glass-ceramics are affected by the crucibles.

关键词： slag glass-ceramics graphite crucible alumina crucible

A One-pot Approach to Ethyl 1,4,5-Triaryl-lH-pyrazole-3- carboxylates via an Improved Claisen Condensation- Knorr Reaction Sequence

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Chinese Journal of Chemistry 2013年第12期31卷 1526-1538页

作者： Jiaojiao Zhai Chunhui Gu Jianan Jiang shunli Zhang Daohua Liao Lei Wang dunru Zhu Yafei Ji School of Pharmacy East China University of Science and Technology Shanghai 200237 China State Key Laboratory of Materials-oriented Chemical Engineering College of Chemistry and Chemical Engineering Nanjing University of Technology Nanjing Jiangsu 210009 China

A one-pot approach to ethyl 1,4,5-triaryl-lH-pyrazole-3-carboxylates has been developed in moderate to high yields. The tert-BuOLi-mediated Claisen condensation of 1,2-diarylethanones and ethyl oxalyl chloride efficiently provided the enolized lithium salts of ethyl 2,4-dioxo-3,4-diarylbutanoates, which in situ reacted with arylhydrazine hydrochlorides via a hydrochloric acid-promoted Knorr reaction to produce the exquisite triarylpyrazole-3- carboxylates. The procedure promises a convenient access to this highly crowded framework for drug discovery.

关键词： one-pot approach 2,4-dioxo-3,4-diarylbutanoates Claisen condensation Knorr reaction triarylpyrazole-3-carboxylates

秸秆还田方式对土壤理化性质和玉米产量的影响

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中国生态农业学报（中英文） 2024年第4期32卷 663-674页

作者：王治统凌俊刘子熙赵德强李泽学周顺利袁兴茂李霄鹤温媛中国农业大学农学院北京100193 河北省农业机械化研究所有限公司石家庄050051

高强度集约化农业生产导致耕地质量下降、农田土壤退化,而秸秆还田是改善土壤环境、提高土壤有机质的重要途径。目前的秸秆还田方式主要针对表层土壤,忽略了对底土质量的改善效果。本研究设置了秸秆富集深层还田、秸秆覆盖还田、秸秆浅... 详细信息

高强度集约化农业生产导致耕地质量下降、农田土壤退化,而秸秆还田是改善土壤环境、提高土壤有机质的重要途径。目前的秸秆还田方式主要针对表层土壤,忽略了对底土质量的改善效果。本研究设置了秸秆富集深层还田、秸秆覆盖还田、秸秆浅旋还田、秸秆深翻还田、秸秆不还田5种秸秆还田方式,以探究不同秸秆还田方式对不同土层土壤理化性质和玉米产量的影响,为高效利用秸秆资源、提高土壤质量和作物产量提供科学依据。本研究结果表明:秸秆覆盖还田提高了0~20 cm土层土壤含水量、有机碳含量、氮循环酶活性;深翻还田提高了表层土壤水分含量与磷循环酶活性;秸秆富集深层还田显著降低了20~40 cm土层土壤容重、增加了土壤含水量、有机碳含量、全氮含量、矿质氮含量以及胞外酶活性。与不还田相比,秸秆还田处理下玉米产量显著提高13.4%~21.0%。因此,秸秆还田是秸秆资源有效利用的重要方式,有利于改善农田土壤环境,提高土壤养分含量,减少化肥使用,促进作物增产,对农业可持续发展具有重要意义。秸秆富集深层还田对于改善底土质量,扩大土壤碳库,提高耕地质量和土地生产力具有重要作用,可以作为构建深厚肥沃耕层的有效措施。

关键词：秸秆还田土壤理化性质玉米产量土壤酶秸秆富集深层还田

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亚热带森林不同类型土壤净氮转化对温度和湿度的响应

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广西师范大学学报（自然科学版） 2024年第4期42卷 216-228页

作者：李顺利何枢浩陈荣枢罗翠颖江宸羊梁建宏朱婧珍稀濒危动植物生态与环境保护教育部重点实验室(广西师范大学) 广西桂林541006 广西师范大学环境与资源学院广西桂林541006 中国地质科学院岩溶地质研究所广西桂林541004 自然资源部/广西岩溶动力学重点实验室(中国地质科学院岩溶地质研究所) 广西桂林541004

为研究我国亚热带森林不同土壤净氮转化速率对温度和湿度的响应特征,本研究以广西广泛分布的酸性红壤与中性石灰土2种森林土壤为研究对象,通过土壤培养对比研究2种森林土壤净氨化、净硝化和净矿化速率对温度(5、15、25、35℃)和湿度(含... 详细信息

为研究我国亚热带森林不同土壤净氮转化速率对温度和湿度的响应特征,本研究以广西广泛分布的酸性红壤与中性石灰土2种森林土壤为研究对象,通过土壤培养对比研究2种森林土壤净氨化、净硝化和净矿化速率对温度(5、15、25、35℃)和湿度(含水量分别为饱和持水量(WHC)的20%、40%、60%、80%)的响应。结果表明:2种土壤净氮转化速率对温度变化有较强的响应。酸性红壤的净氨化、净硝化和净矿化速率均随温度上升而降低,导致土壤净氮供应能力降低;相反地,中性石灰土的净硝化和净矿化速率随温度上升而增大,土壤有效氮通量增加,氮淋溶风险随之增加。土壤氮转化的温度敏感性(Q_(10)值)分析表明,酸性红壤净氨化和净矿化速率的温度敏感区间为25~35℃;酸性红壤硝化速率和石灰土各净氮转化速率的敏感区间为15~25℃。土壤湿度增大促进了石灰土净硝化和净矿化速率,但对红壤的各净氮转化速率无显著影响。土壤钙含量对不同温度下氮转化速率有最高的解释率(28.0%)。因此,在全球变暖大背景下,在对亚热带森林保育、恢复及土地利用管理中,需重视不同土壤类型间氮转化对气候变化响应的差异性。

关键词：森林土壤氮转化氮矿化硝化温度湿度响应 Q_(10)

沃柑皮衍生多孔碳负载钴纳米颗粒复合材料的制备及其电催化性能

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安徽科技学院学报 2024年第3期38卷 102-109页

作者：郭锐付顺利沈长辉姚悦樊晓宇安徽科技学院机械工程学院安徽凤阳233100 安徽科技学院化学与材料工程学院安徽蚌埠233030 安徽科技学院电气与电子工程学院安徽蚌埠233030

目的:研发低成本、高效耐用的生物质基氧还原催化剂来替代贵金属氧还原催化剂,以降低燃料电池商业化成本。方法:以沃柑皮和硝酸钴为原料,通过浸渍和高温热处理的方法合成负载Co纳米颗粒的生物基碳材料(Co-C)。结果:所制备的Co-C在0.1 mo... 详细信息

目的:研发低成本、高效耐用的生物质基氧还原催化剂来替代贵金属氧还原催化剂,以降低燃料电池商业化成本。方法:以沃柑皮和硝酸钴为原料,通过浸渍和高温热处理的方法合成负载Co纳米颗粒的生物基碳材料(Co-C)。结果:所制备的Co-C在0.1 mol/L KOH溶液中催化氧还原反应(ORR)的平均电子转移数为3.59,接近四电子催化途径,具有优异的催化性能;Co-C的起始电位为-0.11 V,接近商业Pt/C(Pt 20%)的起始电位-0.10 V,其稳定性及抗甲醇性均优于商业Pt/C(Pt 20%)。结论:该生物质沃柑皮衍生多孔碳负载Co纳米颗粒复合材料在电催化领域具有巨大的应用潜力。

关键词：多孔生物质碳氧还原反应电化学催化剂

Discrepant chemical differentiation and magmatic-hydrothermal evolution of high-silica magmatism associated with Pb–Zn and W mineralization in the Lhasa terrane

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Geoscience Frontiers 2022年第5期13卷 32-49页

作者： Shunbao Gao Xin Chen Youye Zheng Nan Chao shunli Zheng Hao Lin Xiaojia Jiang Song Wu Institute of Geological Survey China University of GeosciencesWuhan 430074China State Key Laboratory of Geological Processes and Mineral Resources School of Earth ResourcesChina University of GeosciencesWuhan 430074China Key Laboratory of Deep–Earth Dynamics of Ministry of Natural Resources Institute of GeologyChinese Academy of Geological SciencesBeijing 100037China School of Earth Sciences and Resources China University of GeosciencesBeijing 100083China

High-silica(SiO_(2)>70 wt.%)granites(HSGs)are the main source of W,Sn,and rare ***,abundant HSGs,temporally,spatially,and genetically associated with Pb-Zn mineralization,in the Lhasa terrane(LT),provided an ideal opportunity to study the key factors responsible for Pb-Zn enrichment,instead of W-Sn *** we contribute to this topic through U-Pb dating of zircon and garnet,and whole-rock and Sr-Nd-Hf isotopic geochemistry of ore-related quartz porphyries in the Bangbule deposit and compared these results with published data from large and giant Pb-Zn and W deposits in the *** magmatism-alteration-mineralization event in the Bangbule deposit was recorded by robust zircon U-Pb ages of 77.3±0.9 Ma and hydrothermal garnet U-Pb ages of 75.7±4.8 Ma,which is 10-15 Ma earlier than the main Paleocene metallogenic event and the first record of late Cretaceous Pb-Zn polymetallic mineralization in the *** late Cretaceous-Paleocene magmatism and mineralization events are a response to the subduction of Neotethyan oceanic lithosphere,which occurred as a result of the collision of the Indian and Asian *** HSGs related to Pb-Zn mineralization,with high totalalkalis and low magnesian contents,are enriched in Ba,Th,and Rb,but depleted in Ti,Eu,Sr,and *** belong to either the S-type,or I-type *** Sr-Nd-Hf isotopic compositions of the Pb-Zn mineralized granites demonstrate that they were generated by the partial melting of Proterozoic basement with or without mantle-derived melt *** was consistent with the postulated source of W enrichment in the *** Pb-Zn and W related granites have similar zircon-Ti-saturation temperatures,comparable low whole-rock Fe_(2)O_(3)/FeO ratios,and zircon oxygen *** indicated that the Pb-Zn-W enrichment in the high-silica magma system could be attributed to a relatively reduced *** Pb-Zn related HSGs,abundant quartz and feldspar phenocrysts,and weak fractionation of twin-elements in wh

关键词： High-silica granites(HSGs) Magmatic-hydrothermal evolution Regional metallogeny Bangbule Southern China

Nanoparticle‑Loaded Polarized‑Macrophages for Enhanced Tumor Targeting and Cell‑Chemotherapy

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Nano-Micro Letters 2021年第1期13卷 79-98页

作者： Teng Hou Tianqi Wang Weiwei Mu Rui Yang Shuang Liang Zipeng Zhang shunli Fu Tong Gao Yongjun Liu Na Zhang Department of Pharmaceutics Key Laboratory of Chemical Biology(Ministry of Education)School of Pharmaceutical SciencesCheeloo College of MedicineShandong University44 Wenhuaxi RoadJinan 250012People’s Republic of China

Cell therapy is a promising strategy for cancer ***,its therapeutic efficiency remains limited due to the complex and immunosuppressive nature of tumor *** this study,the“cell-chemotherapy”strategy was presented to enhance antitumor efficacy.M1-type macrophages,which are therapeutic immune cells with both of immunotherapeutic ability and targeting ability,carried sorafenib(SF)-loaded lipid nanoparticles(M1/SLNPs)were developed.M1-type macrophages were used both as therapeutic tool to provide immunotherapy and as delivery vessel to target deliver SF to tumor tissues for chemotherapy simultaneously.M1-type macrophages were obtained by polarizing macrophages using lipopolysaccharide,and M1/SLNPs were obtained by incubating M1-type macrophages with *** accumulation of M1/SLNP was increased compared with SLNP(p<0.01),which proved M1/SLNP could enhance tumor targeting of *** increased ratio of M1-type macrophages to M2-type macrophages,and the CD3^+CD4^+T cells and CD3^+CD8^+T cell quantities in tumor tissues after treatment with M1/SLNP indicated M1/SLNP could relieve the immunosuppressive tumor *** tumor volumes in the M1/SLNP group were significantly smaller than those in the SLNP group(p<0.01),indicating M1/SLNP exhibited enhanced antitumor ***,M1/SLNP showed great potential as a novel cellchemotherapeutic strategy combining both cell therapy and targeting chemotherapy.

关键词： Polarized-macrophages Cell therapy Cell-mediated drug delivery Chemotherapy Lipid nanoparticles

Fabrication of Ce-ReS_(2)by Molten Salt for Electrochemical Hydrogen Evolution

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Transactions of Tianjin University 2022年第6期28卷 440-445页

作者： Ran Chen Minghai Ma Yi Luo Liping Qian shunli Wan Shengyou Xu Xinsong She College of Life&Environmental Sciences Huangshan UniversityHuangshan 245041China

Renewable and economical generation of hydrogen via electrochemical methods shows great potential in addressing the energy *** this study,an emerging molten salt method was adopted for the synthesis of a cerium-modifi ed rhenium disulfi de nanosheet for electrical hydrogen evolution *** prepared 1%Ce-doped rhenium disulfi de(ReS_(2))sample showed promoted hydrogen evolution performance in both acid and alkaline electrolytes compared to bare ReS_(2).Generating of abundant defects in ReS_(2)exposed more reaction active ***,adding cerium accelerated the hydrogen evolution ***,this work will off er new insight into developing ReS_(2)-based electrocatalysts for hydrogen evolution reactions.

关键词： Hydrogen Molten salt Ce-doped rhenium disulfi de Defects