Results 21 to 30 of about 799 (149)
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Arsenic presents a critical duality as both a hazardous environmental pollutant and an indispensable material for advanced semiconductor technologies. This study proposes an integrated reductive vacuum sublimation strategy, assisted by carbon and lead additives, to purify crude arsenic containing high oxygen (7.4%) and antimony (1326 mg kg−1).
Hongrui Xiang +6 more
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Developing multifunctional luminescent materials with tunable spectra is crucial for plant lighting and information–security applications. To address the critical requirement of plant photosynthesis for blue and red spectral components, a novel lead‐free double perovskite Cs2NaGdCl6: Sb3+, Pr3+ phosphor was designed and synthesized via a ...
Huangyao Chen +7 more
wiley +1 more source
Gongye shui chuli, 2015 研究了电气石粉的粒径、用量、pH、吸附时间等因素对铅蓄电池废水的总铅、总镉吸附去除率的影响,处理的铅蓄电池废水初始总镉质量浓度0.2~1.5 mg/L、总铅质量浓度18~41 mg/L,当电气石粉粒径为0.5 μm,反应pH=6.0,吸附时间为20 min时,镉、铅去除率可达99.5%。出水可达到《电池工业污染物排放标准》(GB 30484—2013)中第一类污染物最高允许排放标准总镉<0.05 mg/L、总铅<0.7 mg/L的要求。
张青, 李慧, 冯艳文, 朱华静
doaj +2 more sources
High‐Value Targeted Conversion of Copper Slag as LiFePO4 Material for Lithium‐Ion Batteries
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT The massive stockpiling of copper slag (CS) presents severe environmental and resource‐waste challenges. Existing strategies for CS valorization typically yield low‐value‐added products. Herein, we propose an innovative hierarchical regulation approach to transform CS into high‐performance LiFePO4 (LFP) cathode materials.
Yuyun Li +5 more
wiley +1 more source
RURIS (Campinas, Online), 2015 Este ensaio tem o objetivo de apresentar um fragmento da etnografia sobre o conhecimento naturalístico dos pescadores artesanais da Carrasqueira – pequeno povoado localizado na costa central portuguesa. O material etnográfico, produzido entre os anos de 2010 e 2011, expõe como os pescadores carrasqueiros denominam alguns dos seres que constituem a ...
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Cs2SnI6: A Perovskite‐Based Electromagnetic Wave Absorbing Material
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Lead halide perovskites and carbon‐based materials are interesting, high‐performing electromagnetic wave absorbing materials. However, only a few studies have been carried out to examine in detail the electromagnetic wave absorption properties of these materials.
Fei Han +11 more
wiley +1 more source
Dianci bileiqi, 2022 笔者深入研究了采用静电喷涂无铅玻璃釉工艺来制备金属氧化物电阻片的制造技术。研究内容包括：1)在一定配方比例的无铅玻璃釉粉料基础上，采用高速离心喷雾造粒制备所需要静电喷涂粉料；2)采用流化床静电喷涂机喷涂无铅玻璃粉料工艺；3)无铅玻璃粉料的热处理玻化；4)性能试验：以D42 mm×27 mm规格电阻片为例，可以满足4/10、120 kA的大电流冲击3次。从研究的结果来看：1)在金属氧化物电阻片制造中应用静电喷涂无铅玻璃釉，可以实现“无铅”化环保制造过程。2)材料的利用率达到85%,可以满足节约原料的目的 ...
赵冬一
doaj
SE PUBLICAR É PRECISO, AVALIAR TAMBÉM É! [PDF]
Revista de Administração de Empresas, 2018 O tema “revisão de artigos” é relevante e faz parte do cotidiano de todo pesquisador. Entretanto, a minha experiência como editor e revisor em periódicos brasileiros e internacionais torna evidente que o comprometimento dos pesquisadores na função de revisores, em geral, é muito menor do que quando estão na posição de autores.
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Lightweight and lead‐free radiation shielding materials remain urgently needed. This work designed a fluorite high‐entropy oxide (FHEO) system through a combined computational–experimental route. Density functional theory based on special quasi‐random structures was used to identify thermodynamically stable fluorites from a wide compositional ...
Xiangjie Duan +9 more
wiley +1 more source