Results 51 to 60 of about 14,910 (180)

Synthesis and Modification of LiNixCoyMnzO2 Cathode Material for Li-ion Batteries [PDF]

open access: yes, 2015
LiNixCoyMnzO2正极材料因兼具镍酸锂、钴酸锂和锰酸锂的优点,具有容量较高、热稳定好、价格较低和环境污染小等优点,被认为是最有可能取代钴酸锂的新型正极材料之一。如何让LiNixCoyMnzO2正极材料在拥有更高能量密度的同时拥有更好的电化学性能和热稳定性是目前的研究热点之一。 本论文选取低Co含量的LiNi1/3Co1/3Mn1/3O2和LiNi0.5Co0.2Mn0.3O2为主要研究对象。采用共沉淀结合高温烧结法,优化一系列实验条件合成类球形LiNi1/3Co1/3Mn1/3O2正极材料 ...
蔡济钧
core  

Interfacial Electronic Interactions in Hierarchical Heterostructure Electrocatalyst for Energy‐Saving Hydrogen Production at Industrial Current Densities

open access: yesRare Metals, EarlyView.
ABSTRACT Developing low‐energy‐input electrocatalytic systems for efficient hydrogen production is crucial for advancing sustainable energy technologies. The overall hydrazine splitting (OHzS) has emerged as a promising strategy to reduce the overall energy consumption by replacing the sluggish oxygen evolution reaction.
Haozhou Chen   +13 more
wiley   +1 more source

Research on the Non-commercial Risk and Prevention about China's Energy Investment in India [PDF]

open access: yes, 2016
能源是一国经济发展的重要资源,但由于能源资源分配不均,各国能源资源禀赋各异,因此国际能源投资一直是各国海外投资的重点领域。随着中国“走出去”战略和“一带一路”战略的实施,越来越多中国投资者进军国际能源投资市场。印度作为重要的新兴经济体,同时也是“一带一路”战略沿线重要的国家之一。随着中印两国友好关系的发展,两国在国际能源领域也从竞争走向合作,越来越多的中国投资者赴印度进行能源投资,其中印度的新能源行业已成为中国投资者的重点投资目标。但是在投资过程中我国投资者仍面临诸多问题,尤其是能源投资中的非商业风险 ...
徐巧敏
core  

Bifunctional Competitive Structure of Biomass Carbon‐Derived Metacomposites for Tunable ε′‐Near‐Zero and ε′‐Negative Responses

open access: yesRare Metals, EarlyView.
ABSTRACT Regulating negative parameters of metacomposites is mainly limited by their unclear mechanisms, which affects their practical applications in new sensing, communication, electromagnetic (EM) protection and other fields. This work proposes a dual‐functional competitive design strategy based on the waste corncob‐derived carbon/polyaniline ...
Qiuyun Yang   +4 more
wiley   +1 more source

Research Progress on Hybrid Solar-Geothermal Power Generation [PDF]

open access: yes, 2016
Developing and using combined new energy sources is an important direction of development for new energy in future. The first Hybrid Solar-Geothermal Power station has been built, and related research on this field has been carried out vigorously ...
姚远   +5 more
core  

Electrospun Carbon Nanofiber‐Based Multifunctional Electrocatalysts for Zinc‐Air Batteries and Overall Water Splitting: Fabrication, Progress, and Perspective

open access: yesRare Metals, EarlyView.
ABSTRACT The development of high‐performance and stable electrocatalysts for oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER) plays a critical role in advancing clean energy technologies, including metal‐air batteries and hydrogen production through overall water splitting.
Chen‐Yu Cai   +4 more
wiley   +1 more source

Rational Design of Multifunctional Nano–Architected Coatings for Bipolar Plates in Proton Exchange Membrane Fuel Cells

open access: yesRare Metals, EarlyView.
ABSTRACT Proton exchange membrane fuel cells (PEMFCs) require advanced bipolar plate coatings to enhance efficiency, durability, and commercialization potential. This review presents a systematic framework for evaluating and designing bipolar plate coatings, integrating material selection, performance metrics, deposition techniques, and future ...
Shijie Li   +12 more
wiley   +1 more source

Research on Domain-Specific Patent Comprehensive Topic Evolution Model [PDF]

open access: yes, 2016
在科学技术迅猛发展的背景下,科学技术的生命周期变短,专利作为科学技术成果的一大体现方式其数量更是呈指数增长,专利分析的重要性也日益显现。仅靠人工识别的方法虽然能够保证质量,但是面对如此海量的专利数据往往会显得力不从心。如何结合专利分析技术,从海量的专利文本数据中识别出值得被关注的数据,分析技术趋势,进而制定技术研究战略显得格外重要。 为了从技术层面分析某一特定领域专利结构及其发展演化情况,更好地把握领域内专利的发展历程、厘清发展脉络,本论文提出了一个基于文本和网络分析的专利综合主题演化模型 ...
蓝婧
core  

Excellent Comprehensive Electromechanical Properties in PZT‐Based Hard High‐Temperature Piezoceramics

open access: yesRare Metals, EarlyView.
ABSTRACT High‐power piezoelectric ceramics which have a wide operating temperature range are essential for sensor and actuator applications in extreme conditions. However, their development is fundamentally hindered by the inherent trade‐off among key parameters (TC, d33, Qm).
Rui Yan   +10 more
wiley   +1 more source

新能源对电网调峰特性影响定量评估及应用

open access: yesGaoya dianqi, 2023
随着风电、光伏新能源装机容量和占比的不断提升,中国电网所面临的新能源全额消纳和电网调峰矛盾日益严峻。针对新能源对电网调峰特性影响问题,文中提出了一种新能源对电网调峰能力影响的量化指标;基于历史运行数据,首先分析提取新能源对电网净负荷曲线特征的影响特征,然后从新能源对负荷低谷值、峰谷差影响的角度提出了量化评估指标;最后,结合某省级电网运行数据,对新能源对电网调峰能力影响进行了评估分析,并利用所提指标研究了该省电网2021年的新能源消纳形势,结果表明 ...
金梦, 朱鑫要, 周前
doaj  

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