Results 21 to 30 of about 594,524 (137)

Upcycling of Waste Polyethylene Terephthalate Plastics to Fabricate Cobalt–Nickel Metal–Organic Frameworks and Their Phosphides for Efficient Oxygen Evolution Reaction

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT The urgent environmental crisis caused by polyethylene terephthalate (PET) waste necessitates efficient upcycling strategies. Herein, we establish a novel pathway to transform waste PET plastic into a high‐performance catalytic material for mediating the oxygen evolution reaction (OER). Through a one‐step hydrothermal process, waste PET serves
Xin Wang   +5 more
wiley   +1 more source

聚丙烯酰胺接枝聚合物/黄原胶气溶胶固定剂制备及其对碲气溶胶的捕获固定研究

open access: yesFushe yanjiu yu fushe gongyi xuebao
捕获固定去除在铅铋冷却剂正常运行时产生的钋放射性气溶胶具有重要意义。本研究在接枝聚合物聚丙烯酰胺接枝丙烯酸、丙烯酸羟乙酯(PAM-g-PAA/PHEA)的基础上复合黄原胶(XG)制备一种润湿性好和高捕获固定性能的气溶胶固定剂。通过红外光谱、X射线衍射仪和扫描电子显微镜研究并证实了气溶胶固定剂的结构;通过热重、接触角和固定沉降方法研究了气溶胶固定剂的热性能、润湿性和对碲(模拟钋)气溶胶的捕获固定效果。结果表明:PAM-g-PAA/PHEA与XG通过氢键协同作用构成双网络结构,气溶胶固定剂的热性能 ...
蒋 丹枫   +6 more
doaj   +1 more source

Structural Distortion for Polyoxometalate‐Derived Metal Sulfide Induced by In Situ Intercalation With Organic Ligands Achieving Efficient Electrocatalytic Hydrogen Evolution Performance in Alkaline/Seawater Medium

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT The electrocatalytic water splitting technique was widely taken for hydrogen evolution, due to its cost‐effectiveness and environmental friendliness. The design of electrode material as electrocatalysts play a key role in achieving high efficiency.
Yaling Zhu   +5 more
wiley   +1 more source

Polarization Loss Enhancement Induced by Interfacial Contact Regulation Strategy to Develop Nickel Silicate/Reduced Graphene Oxide for Microwave Absorption and Corrosion Resistance

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Interface polarization enhancement and impedance matching optimization are the keys to improving the comprehensive performance of microwave absorbing materials (MAMs). Herein, a green synthesis strategy integrating sacrificial template self‐etching, hydrothermal reaction, and annealing treatment is proposed to successfully fabricate urchin ...
Zhenzhen Tian   +8 more
wiley   +1 more source

公共财政与环境友好型社会 [PDF]

open access: yes, 2008
当前我国社会经济可持续发展面临前所未有的环境压力,由公共财政市场失灵论得出环境问题单纯由市场无法解决,应加强财税政策的实施。本文分析了我国现行财税政策在建设环境友好型社会方面的不足,并分别从优化财政支出结构、规范财政补贴政策 ...
何川
core  

Nanofiltration Membranes for High‐Selectivity Separation of Li+ and Mg2+ From Salt Lake Brines: Strategies, Challenges, and Perspectives

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Against the backdrop of global clean energy transition and surging demand for lithium resources, lithium extraction from salt lakes presents unprecedented development opportunities. Nanofiltration (NF) membrane technology, recognized for its efficiency, energy savings, and environmental benefits, demonstrates significant application potential ...
Wen‐Feng Li   +5 more
wiley   +1 more source

Sodiumation of Biomass‐Derived Quinones Enables High‐Rate and Long‐Life Cathodes for Sodium‐Ion Batteries

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Biomass‐derived quinones are promising green and sustainable cathode materials for sodium‐ion batteries (SIBs), yet their practical application is hindered by poor cycling stability due to dissolution in conventional electrolytes. Herein, we demonstrate that sodiumation is an effective strategy to enhance both rate capability and cycling ...
Xinyue Zhu   +4 more
wiley   +1 more source

水垢防治技术研究进展

open access: yesGongye shui chuli, 2012
简要介绍了水系统的成垢机理及几种典型的化学、物理防垢方法,总结了各防垢方法的发展情况与存在问题:化学法简单易行、稳定高效,但对环境易造成危害,物理法控制简便、经济环保,但效果不稳定、原理复杂。指出开发环境友好型阻垢剂及高效的物理防治方法将是水垢防治的发展方向。
罗艳归, 隋贤栋, 黄肖容
doaj   +2 more sources

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

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
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

Beyond Motivation: Modeling the Predictive Role of L2 Pride in Informal Digital Learning of English

open access: yesInternational Journal of Applied Linguistics, Volume 35, Issue 4, Page 1938-1952, November 2025.
ABSTRACT This study investigates the role of second language (L2) pride—an understudied affective factor—in shaping learners’ language learning motivation and involvement with informal digital learning of English (IDLE). Drawing on questionnaire data from 1388 Chinese university EFL students, the study employs structural equation modeling to examine ...
Minlin Minny Zou   +3 more
wiley   +1 more source

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