Results 21 to 30 of about 23,200 (202)
A crise do conhecimento científico indica a necessidade de repensarmos o modelo uniforme de seu discurso na direção da abertura ao diálogo com outras linguagens e instâncias do saber humano, como a filosofia e, principalmente, as artes. Partindo desse pressuposto, faremos uso de alguns trechos do livro gráfico Do Inferno para analisarmos as ...
Cláudio Bento O. Ferraz +1 more
openaire +2 more sources
ABSTRACT Photocatalytic H2 evolution coupled with biomass upgrading offers a sustainable route for clean energy conversion and high‐value chemical synthesis. Herein, an in situ grown S‐scheme MnS/MnB‐MBene heterojunction (denoted as SMx) was fabricated via alkaline etching of Mn2AlB2 followed by controlled sulfurization.
Pei Li +7 more
wiley +1 more source
通过营养液培养试验研究不同硫镉水平对超积累东南景天抗氧化酶活性的影响。结果表明,在增施镉水平下东南景天叶片的MDA含量随着硫水平增加显著降低,Cd0水平下S2处理显著降低MDA含量达12.4%。相反,东南景天叶片的MDA含量随着镉水平的提高显著增加18.4%~137.7%。镉硫交互对超积累东南景天叶片抗氧化酶活性有显著影响。超积累东南景天叶片SOD活性随着硫、镉水平的增加而增加,以S3>S2>S1,Cd100>Cd10>Cd0。增施硫显著提高Cd10和Cd100水平下东南景天叶片POD活性。在S1 ...
李会合
doaj
ABSTRACT To address critical issues in lithium–sulfur batteries, such as slow polysulfide conversion kinetics and shuttle effects, we designed and synthesized a high‐performance nanoalloy catalyst through a defect reconstruction strategy, aiming to enhance the electrochemical performance of batteries.
Zhijun Zhao +10 more
wiley +1 more source
ABSTRACT Metal nanoclusters provide abundant catalytically active sites and unique electronic structures that are highly beneficial for enhancing photocatalytic performance; however, their practical application is often hindered by poor photostability.
Yiying Qin +6 more
wiley +1 more source
为确定土壤铜、硫污染对苹果幼树生长发育的影响,以硫铁矿尾矿砂河滩垫地上栽植的苹果幼树为试材,研究土壤中的不同铜硫含量对苹果幼树生长发育的影响。结果表明:土壤中的铜含量≥46.8mg/kg,土壤有效硫含量≥368.7mg/kg时,苹果幼树的生长发育就会受到抑制;土壤中的铜含量≥53.9mg/kg,土壤有效硫含量≥538.0mg/kg时,苹果幼树受毒害甚至死亡。苹果幼树各器官铜含量的分布规律为:根系>叶片>新梢>1年生枝>2年生枝>主干,硫含量分布规律为:叶片>根系>新梢>1年生枝>2年生枝>主干 ...
董丽欣 +6 more
doaj
ABSTRACT The commercialization of lithium–sulfur batteries (Li–S batteries) has been hindered by the shuttle effect of lithium polysulfides (LiPSs) and sluggish redox kinetics. In this study, we constructed a three‐dimensional hollow conductive network host material for sulfur with synergistic enhancement effects.
Jie Yang +6 more
wiley +1 more source
ABSTRACT Lithium–sulfur (Li–S) batteries are promising for next‐generation high‐energy‐storage systems but are hindered by polysulfide shuttle, sluggish kinetics, and volume expansion. Conventional carbon hosts struggle to simultaneously anchor and convert polysulfides efficiently.
Ling Chen, Peng Xu, Jiaojing Shao
wiley +1 more source
根据不同情况硫酸酸性含铁废水,可用铁氧化细菌的氧化法或用硫酸还原菌来处理。铁氧化细菌法是将二价铁氧化为三价铁,三价铁水解成氢氧化铁沉淀;硫酸还原菌法是将硫酸根还原为负二价硫离子,与铁生成硫化铁沉淀,从而达到净化硫酸酸性含铁废水的目的。
陈玉莉
doaj +2 more sources
ABSTRACT Although alloy‐based materials present potential for peroxymonosulfate (PMS) activation, metal ion leaching remains severely restricted during the pollution degradation process. Herein, the porous carbon‐supported Fe–Cu alloy derived from industrial copper slag was prepared to remove the organic pollutants from wastewater while inhibiting the ...
Xuanren Chen +10 more
wiley +1 more source

