Results 31 to 40 of about 305,608 (149)
ABSTRACT To achieve high‐value utilization of spent catalysts, we recovered copper (Cu) from Cu‐bearing spent catalysts via acid‐base leaching to fabricate CuO and systematically studied how calcination temperature affects their microstructure and humidity‐sensing performance. Characterizations show that CuO‐500 (calcined at 500°C) has a large specific
Cong Liang +9 more
wiley +1 more source
Functionalized Silica‐Constructed Self‐Supporting Composite Separator for Lithium Metal Batteries
ABSTRACT Lithium metal batteries (LMBs) are considered highly promising next‐generation energy storage systems owing to their exceptionally high theoretical specific capacity and ultralow electrochemical potential. Nevertheless, the practical deployment of LMBs is still severely restricted by the uncontrollable formation and propagation of lithium ...
Li Chen +6 more
wiley +1 more source
为考察厌氧氨氧化菌在不同环境下对盐度的响应情况,以及生物量对厌氧氨氧化菌高盐抑制的缓解效果,研究未添加盐度和添加不同盐度的SBR反应器的脱氮性能,确定起到促进及抑制作用的盐度阈值。通过批次实验考察低盐度对35、15 ℃厌氧氨氧化污泥的影响,以及不同污泥量(4、6、8、10 g/L)在高盐抑制条件下对基质的降解能力。结果表明,低于5 g/L的盐度对中温和低温系统中的厌氧氨氧化菌均有促进和稳定作用。尤其在低温条件下,该盐度可提高厌氧氨氧化菌的亚硝氮还原能力,盐度达到14 g/L后出现明显抑制。此外 ...
苏杨, 杨宏
doaj +2 more sources
ABSTRACT Non‐noble metal oxygen electrocatalysts are essential for low‐cost rechargeable metal‐air batteries and fuel cells, determining their energy conversion efficiency. However, such electrocatalysts are limited by inadequate bifunctional activity and stability toward the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER).
Lixin Sun +14 more
wiley +1 more source
针对低温环境厌氧氨氧化反应效率低下问题,本研究采用逐步降温法启动UASB反应器,以信号分子3-oxo-C8-HSL作为微生物强化剂,利用序批式与连续流试验,明确3-oxo-C8-HSL最佳投加量,分析其对低温厌氧氨氧化脱氮效果及厌氧氨氧化菌(AnAOB)代谢性能影响。试验结果表明,历经210 d成功启动了低温UASB反应器,批量试验运行50 h后发现,3-oxo-C8-HSL可显著提升低温厌氧氨氧化反应效率并强化AnAOB代谢,0.2 μmol/L的3-oxo-C8-HSL为低温UASB的最佳投加量 ...
李微 +4 more
doaj +4 more sources
ABSTRACT Regulating oxygen vacancies (Ov) in SnO2 to facilitate high‐efficiency carbon dioxide electroreduction reduction reaction (CO2RR) is still a significant challenge. Therefore, a strategy based on Ag‐induced interfacial electron transfer was proposed to modulate Ov in SnO2 for CO2 electroreduction. The prepared Ag/SnO2 with an optimal Ov content
Haoyu Qi +7 more
wiley +1 more source
试验采用SBR工艺的三种运行方式对高氨氮工业废水的处理进行了初步研究,并进一步对低溶解氧系统中的活性污泥进行了初始pH以及不同溶解氧浓度影响的探索。结果表明:对于去除氨氮,低溶解氧系统和传统的缺氧/好氧脱氮工艺具有相似的去除效率,但前者所需动力费用低;pH及溶解氧可作为系统运行的指示参数进行控制。
吴光学 +3 more
doaj +2 more sources
ABSTRACT The pollution caused by antibiotics to aquatic ecosystems is becoming increasingly serious, thus more effective treatment methods are urgently required. Although the photocatalytic degradation behavior of tetracycline (TC) is relatively well understood, sulfamethoxazole (SMZ), an emerging pollutant originating from large‐scale livestock ...
Yihang Yang +6 more
wiley +1 more source
一种膜法制富氧和低氧空气的装置由空气过滤器,通风机,空气均配箱,膜装置,调节阀,增湿器,真空均分器,水环泵,汽水分离器和脱水器构成,该装置中低氧空气是膜装置中空气被膜组件截留后的部分,经增湿器后输出含氧10~20%的低氧空气;富氧空气中经水环泵抽出后,经汽水分离器和脱水器脱水后得到含氧22~29%的富氧空气,该装置可用作医疗保健设备,特别是作为可提供富氧和低氧环境的科研和各种训练的附设装置 ...
沈光林, 田福聚, 张钢
core
ABSTRACT Multifunctional thermal protective ceramic thermal/environmental barrier coatings (T/EBCs) are of great significance for applications of various high‐temperature components, and we propose an effective strategy for designing high‐entropy ceramics (HECs) as T/EBCs for SiC ceramic matrix composites (CMCs), where low thermal expansion ...
Qinshuo Wang +7 more
wiley +1 more source

