Results 31 to 40 of about 1,231,748 (164)

Liquid/Solid EGaIn@Ag Heterostructure Catalyst Enabling CO2 Electroreduction to CO in a Three‐Membrane Electrolyzer With Co‐Production of K2CO3 and Cl2

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Electrochemical carbon dioxide reduction reaction (CO2RR) powered by renewable electricity offers a sustainable route for producing value‐added carbonaceous chemicals. Herein, a three‐membrane electrolyzer was employed to directly co‐generate carbon monoxide (CO), chlorine (Cl2), and potassium carbonate (K2CO3) from the electrolysis of CO2 and
Shuai Wu   +10 more
wiley   +1 more source

Separation and purification of total alkaloids from the peels of Carya cathayensis Sarg. by macroporous adsorption resin(大孔吸附树脂分离纯化山核桃蒲壳总生物碱)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2010
用经筛选的大孔树脂分离纯化山核桃蒲壳总生物碱.选择极性不同的D101、AB-8、NKA-9 3种大孔树脂,比较其对山核桃蒲壳中总生物碱的吸附率和解吸率的影响,筛选较优树脂,并以总生物碱的纯化倍数和固体得率为考察指标,探索纯化工艺.NKA-9大孔树脂对山核桃蒲壳总生物碱有较好的吸附和解吸效果;pH为7.0的山核桃蒲壳生物碱提取液经大孔树脂吸附后,依次用蒸馏水2BV、30%乙醇2BV、50%乙醇3BV洗脱,总生物碱富集在50%乙醇部分,纯化倍数达到3.173倍,固体物得率为34.78%.采用NKA ...
ZHANGYong-yu(张永钰)   +2 more
doaj   +1 more source

In Situ Engineering an S‐Scheme MnS/MnB‐MBene Heterojunction With Spatially Separated Redox Sites for Efficient H2 Evolution and 5‐HMF Oxidation

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
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

Rapid Removal of Binder From Spent Lithium‐Ion Batteries by Microwave Radiation for Enhanced Flotation Separation of Anode and Cathode Materials

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Achieving rapid and selective separation of anode and cathode materials remains a critical challenge in the recycling of spent lithium‐ion batteries. This study develops a microwave‐enhanced flotation strategy for the efficient recovery of cathode and anode materials.
Peiyuan Ye   +5 more
wiley   +1 more source

有机杂气纯化装置

open access: yes, 2013
本实用新型涉及一种有机杂气纯化装置,包括气流依次通过的冷阱、高温裂解炉和纯化单元,所述高温裂解炉的入口和出口分别通过管道连接冷阱的出口和纯化单元的入口,所述纯化单元设有气流的出口,所述纯化单元的出口和入口之间设有纯化剂,所述纯化单元包括对通入气流进行温度调节的调温机构。有机杂气依次通过冷阱吸附、高温裂解并全部通过纯化单元的纯化剂由纯化剂纯化后,去除了其中的有机大分子物质,以获取纯净的惰性气体供质谱分析,极大的提高了质谱分析的稳定性和准确性 ...
邱华宁
core   +1 more source

重组人β防御素2工程菌的发酵及纯化研究

open access: yesZhongguo shiyan zhenduanxue, 2016
目的发酵并纯化重组人β-防御素2(HBD2),为其生物活性的检定奠定基础。方法利用罐发酵人β-防御素2工程菌,并建立重组人β-防御素2的层析纯化工艺。结果确定了工程菌优化的最佳发酵条件为高溶氧、低温诱导策略,获得了高密度发酵工艺。建立了重组人β-防御素2的特殊纯化工艺。结论完成了重组人β-防御素2的发酵和纯化工艺研究。
张艳, 桑雪, 魏洪涛, 张国利
doaj  

Anchoring Polyoxometalate (PMo11Fe) on ZnO Nanosheet for Construction of a Novel S‐Scheme Heterojunction Toward Efficient Photodegradation of Levofloxacin Antibiotics

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Currently, the photocatalytic performance of ZnO has been severely limited by its weak light response ability and sluggish charge carrier dynamics, which considerably hinder its extensive application in photocatalytic fields. Herein, through anchoring the synthesized K6PMo11FeO40·nH2O (PMo11Fe) onto ZnO nanosheets, a novel S‐scheme ...
Xinjia Zhang   +8 more
wiley   +1 more source

一种金属钯或钯合金复合膜氢气纯化器

open access: yes, 2014
本实用新型涉及一种金属钯或钯合金复合膜氢气纯化器,该纯化器由手动控制阀门、气动控制阀门、纯化组件、浮子流量计、质量流量控制器、真空泵、压力传感器、单向阀、阻火器组成。其中纯化组件可实现加热、预热、换热和氢气纯化等功能。其中真空泵于短时间内实现氮气吹扫到超纯氢生产的切换,于断电或其他紧急情况将整个系统中的氢气抽除,以防止纯化组件中钯复合膜因氢气的存在而发生氢脆,延长其使用寿命。该氢气纯化器具有结构紧凑、热利用效率高、装置投资和纯化成本低等优点 ...
徐恒泳,  侯守福,  唐春华
core  

重组人TRAIL蛋白的原核表达、纯化及鉴定

open access: yes四川大学学报. 自然科学版, 2002
将含有人TRAIL蛋白表达质粒的大肠杆菌以IPTG诱导表达 ,表达蛋白主要以包涵体形式存在 .经菌体破碎、包涵体分离、抽提及复性 ,用Ni NTASuperflow柱层析及进一步的离子交换色谱分离纯化获得纯蛋白 .SDS PAGE显示纯化的蛋白为 19kD的单一条带 .Westernblot鉴定表明 ,纯化的表达产物与抗人TRAIL蛋白的抗体发生特异性免疫反应 .抗肿瘤生物活性测定表明该纯化蛋白对肿瘤细胞的体外生长具有显著的抑制作用 .
周建, 彭旭东, 张健, 高小平
doaj  

The Formation and Hardening Mechanisms of Multiscale Gradient Structures Tailoring by Explosive Hardening and Annealing in Commercially Pure Titanium

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Gradient structures (GS) introduced by plastic deformation have been shown to effectively enhance the surface properties of metallic materials. However, the GS fabricated by existing methods often suffers from limited hardening depth and limited control over the GS layer, which constrain their engineering applications.
Yansong Guo   +5 more
wiley   +1 more source

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