检索结果-南通市图书馆

Comparing the temperature sensitivity of organic matter decomposition in oxic and oxygen-deprived soils

Soil Ecology Letters 2024年第1期6卷 29-32页

作者： Zhenhui Jiang Xin Wang Ting Liu Xiaojuan Feng State Key Laboratory of Vegetation and Environmental Change Institute of BotanyChinese Academy of SciencesBeiing 100093China University of Chinese Academy of Sciences Bejing 100049China State Key Laboratory of Subtropical Silviculture Zhejiang A&F UniversityHangzhou 311300China Henan Key Laboratory of Ecological Environment Protection and Restoration of Yellow River Basin Yellow River Institute of Hydraulic ResearchZhengzhou 450003China

No consistent variation was found in soil respiration Q10 under various O2 *** C quality had a strong effect on Q10 in oxic soils.N limitation had a large impact on Q10 in soils under O2 *** studies on the temperature sensitivity(Q10)of soil organic matter(SOM)decomposition mainly focus on aerobic ***,varia-tions and determinants of Q10 in oxygen(O2)-deprived soils remain *** we incubated three grassland soils under oxic,suboxic,and anoxic conditions subjected to varying temperatures to compare variations in Q10 in relation to changing *** consistent variation was found in Q10 under various O2 *** analysis of edaphic properties demon-strated that substrate carbon quality showed a strong influence on Q10 in oxic soils,whereas nitrogen limitation played a more important role in suboxic and anoxic *** results suggest that substrate carbon quality and nitrogen limitation may play roles of varying importance in determining the temperature sensitivity of SOM decomposition under various O2 conditions.

关键词： oxygen-limited conditions temperature sensitivity soil respiration carbon substrate nitrogen limitation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Selective nitrogen doping on carbon cloth to enhance the performance of zinc anode

引用

Chinese Chemical Letters 2021年第3期32卷 1095-1100页

作者： Lei Wang Guilan Fan Jiuding Liu Le Zhang Meng Yu Zhenhua Yan Fangyi Cheng Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Renewable Energy Conversion and Storage CenterCollege of ChemistryNankai UniversityTianjin 300071China

Metallic zinc is attractive anode material of rechargeable aqueous Zn-based batteries due to its ambient stability,high volumetric capacity,and abundant ***,Zn anodes suffer from issues such as low coulombic efficiency(CE),large polarization and dendrite ***,uniform Zn electrodeposition is reported on carbon substrates by selective nitrogen *** experimental and theoretical investigations demonstrate that pyrrolic and pyridinic nitrogen doped in carbon play beneficial effect as zinc-philic sites to direct nucleation and growth of metallic Zn,while negligible effect is observed for graphite nitrogen in Zn *** carbon cloth with modified amount of doped pyrrolic and pyridinic nitrogen stabilizes Zn plating/stripping with 99.3%CE after 300 cycles and significantly increases the deliverable capacity at high depth of charge and discharge compared to undoped carbon substrate and Zn *** work provides a better understanding of heteroatom doping effect in design and preparation of stable 3 D carbon-supported zinc anode.

关键词： Zinc Batteries Nitrogen doping carbon substrate Electrodeposition

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effect of Poly（ethylene glycol）-400 and carbon on MoOz Nanocomposite Materials and Its Catalytic Activity for Biginelli Reactions

引用

Chinese Journal of Chemistry 2011年第10期29卷 2049-2056页

作者： Navgire, Madhukar Yelwande, Ajeet Arbad, Balasaheb Lande, Machhindra Department of Chemistry Dr. Babasaheb Ambedkar Marathwada University Aurangabad 431004 India

The effect of addition of poly（ethylene glycol）-400 （PEG-400） and carbon （0, 1, 2 and 3 wt%） as substrates were investigated systematically to get the desired phase of carbon-doped MoO3 material. The carbon source was prepared from the Acacia arabica plant wood. The resulting samples were calcined at 500 ℃. The effect of PEG-400 and carbon composite on the structure, particle size and morphology were investigated. The prepared samples were characterized by XRD, SEM-EDS and FT-IR techniques. The samples with PEG-400 and carbon ad- dition give better control of particle size and porosity. The prepared catalysts were tested for the synthesis of 3,4-dihydropyrimidones via the Biginelli-type condensation reaction. This new method consistently has the advan- tage of excellent yields （88%--93%） and short reaction times （1.5--3 h） than do classical Biginelli reaction conditions.

关键词： carbon substrate MOO3 PEG Biginelli reaction 3,4-dihydropyrimidones

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

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

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

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

在线全文

在线全文

在线全文

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：