Results 21 to 30 of about 2,077 (193)

Electron‐Donating Multifunctional Molecules: A Strategy for High‐Performance Perovskite Solar Cells

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Multifunctional molecules containing electron‐donating groups are critically important in perovskite solar cells (PSCs), including defect passivation, crystallization modulation, energy level alignment, and other functions. This review systematically examines the application and research progress of such multifunctional molecules in PSCs ...
Heng Liu   +14 more
wiley   +1 more source

Um é pouco, dois é bom, três é demais

open access: yesOpiniães, 2015
Contos.
openaire   +2 more sources

Mechanism of Selective Arsenic Purification via Reductive Vacuum Sublimation: From Oxygenated Crude Arsenic to High‐Purity Arsenic

open access: yesRare 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
wiley   +1 more source

Efficient Double Perovskite Cs2NaGdCl6: Sb3+/Pr3+ for Plant‐Cultivation Lighting, Advanced Optical Anti‐Counterfeiting, and WLED Applications

open access: yesRare 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

电气石粉吸附处理铅蓄电池废水的研究

open access: yesGongye 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

open access: yesRare 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

"É peixe ou não é?"

open access: yesRURIS (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 ...
openaire   +1 more source

Cs2SnI6: A Perovskite‐Based Electromagnetic Wave Absorbing Material

open access: yesRare 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

SE PUBLICAR É PRECISO, AVALIAR TAMBÉM É! [PDF]

open access: yesRevista 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.
openaire   +2 more sources

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