Results 41 to 50 of about 793 (117)

Bimetallic NiCo Loaded on the Nitrogen‐Rich Modified Lignin‐Derived Carbon Coordination Network for Accelerated Oxygen Reduction Kinetics

Rare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT The development of novel oxygen electrocatalysts with cost‐effectiveness, scalability, high catalytic activity, and stability presents a significant challenge for zinc–air batteries (ZABs). The nitrogen‐rich lignin coordination network structure is synthesized through amine modification of lignin.
Ping‐Xian Feng, Xuan‐Zhen Zhang, Hui Luo, Zhi‐Yi Huang, Ya‐Ru Luo, Yun‐Hui Feng, Wei Liu, Guo‐Bin Yi, Huan Wang   +8 more
wiley   +1 more source

Oxygen Vacancy Engineering of Ultrafine ZnAl2O4 Nanoparticles as a Robust Protective Layer for Dendrite‐Free and Long‐Lifespan Aqueous Zn Metal Anodes

Rare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Aqueous zinc‐ion batteries (AZIBs) hold great promise for safe and sustainable energy storage, but their commercialization is impeded by severe Zn dendrite growth and interfacial instability. To address these challenges, we propose a defect engineering strategy employing ultrafine ZnAl2O4 (ZAO) nanoparticles (∼5 nm) with oxygen vacancy defects
Yilun Ren, Haifeng Bian, Qing Zhou, Biao Wang, Hao Wu, Chunrong Zhao, Bing Yu, Rong Yang, Jiantao Wang, Xiangkang Meng   +9 more
wiley   +1 more source

Não é lenda; é Realidade

Discursos Fotograficos, 2014
Resenha de: SILVA, Mylton Severiano da. Realidade  - História da revista que virou lenda. Florianópolis: Editora Insular, 2013. 320 p.
openaire   +3 more sources

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

Rare Metals, Volume 45, Issue 3, March 2026.
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, Wen‐Jun Niu, Bing‐Xin Yu, Li‐Yang Xu, Fu‐Ming Wang   +4 more
wiley   +1 more source

Tunable Redox‐Active Anhydride‐Based Linear Polymer as Organic Cathodes for Chemically Self‐Charging Aqueous Zinc–Ion Batteries

Rare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Chemically self‐charging aqueous zinc‐ion batteries (AZIBs) have emerged as promising candidates for energy storage technologies owing to their environmental autonomy and structural simplicity. Nonetheless, the self‐charging performance is significantly compromised by the limited potential difference between cathodes and oxygen, as well as the
Yan Wang, Bin‐He Wang, Lin Fan, Mao‐Bin Wei, Qiong Wu, Jing‐Hai Yang   +5 more
wiley   +1 more source

Phosphorus‐Doping Drives the Formation of a Pt‐Skin@PtFe Alloy Catalyst With Modulated d‐Band Center for Oxygen Reduction

Rare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Platinum (Pt)‐based catalysts are crucial for the commercialization of hydrogen/metal air batteries, but they suffer from Pt scarcity, high cost, and nanoparticle dissolution/agglomeration, mainly leading to performance degradation. We address this by synthesizing a PtFe alloy catalyst (PtFe–PA–NC) via a phytic acid (PA) assisted pyrolysis ...
Chenyang Shu, Yimin Chen, Chuanlan Xu, Xinru Xu, Lingtao Sun, Jiayi Niu, Cherkasova Tatiana, Chaozhong Guo, Yuan Niu, Quan Xu   +9 more
wiley   +1 more source

É a ciência artística ou a arte é científica?

Babel: Revista Eletrônica de Línguas e Literaturas Estrangeiras, 2012
A partir do fruto de um trabalho de extensão (e pesquisa), cujo fim é formar contadores de estórias em Língua Estrangeira (LE), projeto em andamento na cidade de Alagoinhas-Ba. UNEB-Campus II. Tendo escolhido o subtema: diálogo entre ciência e arte, busco discutir dos tantos diálogos possíveis contidos nessa ceára, a arte de contar estórias como meio ...
openaire   +2 more sources

“Nada é orgânico: é tudo programado”

Revista Brasileira de Tecnologias Sociais
As redes sociais ocupam um papel central no cotidiano contemporâneo, influenciando as formas de interação, a construção da realidade e as experiências individuais e coletivas. Por trás dessa dinâmica, atuam os algoritmos, sistemas que exercem uma forma de poder sutil, porém decisiva, ao definir o que é visto, valorizado ou silenciado nas plataformas ...
Rossana Iândja De Oliveira Silva, Lilian Carla Muneiro   +1 more
openaire   +1 more source

Beleza é fundamental? [PDF]

Revista Estudos Feministas, 2008
FLORES, Maria Bernadete Ramos. Tecnologia e estetica do racismo: ciencia e arte na politica da beleza.
openaire   +3 more sources

Tipografia não é invisível, é espelho

DAT Journal, 2016
Ao observar uma página impressa é possível identificar a época em que esta foi produzida. Se o tipo, aquele retângulo ideal onde o corpo da letra, a linha de base, ascendentes, descendentes coexistem permanece inalterado, os elementos que compõem a página mostram uma considerável evolução.
Fernanda de Oliveira Martins, Edna Lucia Cunha Lima   +1 more
openaire   +2 more sources