Results 31 to 40 of about 1,184,562 (150)

对硝基苯乙酮生产废水处理工程实例

open access: yesGongye shui chuli, 2017
介绍了处理对硝基苯乙酮生产废水的化学/生物/深度处理组合工艺及相关反应条件。其中化学法采用混合酸析和Fenton催化氧化法,通过小试发现,对硝基苯乙酮生产废水混合酸析最佳pH为2.0,Fenton催化氧化的最佳反应条件为pH 3.0、H2O2质量分数0.9%、FeSO4·7H2O 2.5 g/L、反应时间2 h。经过混合酸析-Fenton催化氧化-水解酸化-A/O-臭氧氧化-接触氧化工艺处理后,出水的COD、硝基苯、色度、总氮等指标达到国家污水综合排放三级标准(GB 8978-1996)。
危志锋   +5 more
doaj   +2 more sources

Surface Reconstruction of Ce‐Ion‐Doped Fe‐MOF for Efficient Water Oxidation

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Surface reconstruction plays an important role in catalysts for the efficient oxygen evolution reaction (OER). In this work, we report the designed synthesis of the Ce‐ion‐doped Fe‐MOF (CFM) directly grown on nickel foam via a facile solvothermal route.
Fangfang Zhang   +8 more
wiley   +1 more source

Phase‐Boundary Electronic Coupling in CoP/NiCo‐LDH for High‐Efficiency Electrocatalysis and Energy Storage

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Developing electrode materials with high capacity and outstanding activity is essential for energy storage and conversion technologies. However, integrating multiple functions into a single material remains challenging. Herein, we synthesized a novel CoP@NiCo layered double hydroxide (CoP@NiCo‐LDH) nano‐electrode using hydrothermal and ...
Ruiyu Li   +9 more
wiley   +1 more source

A Green Strategy for the Ultrafast Synthesis of Functional Hydrogels Toward Intelligent Human–Machine Interfaces

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT With the rapid development of flexible electronics, there is an increasing demand for hydrogel‐based sensors with rapid fabrication, robust mechanical performance, and stable sensing behavior. Herein, a green and ultrafast self‐catalytic strategy is developed to fabricate a multifunctional hydrogel based on tannic acid‐coated cellulose ...
Jin Qian   +6 more
wiley   +1 more source

Chemical Removal of Al From Layered Mn2AlB2: Toward 2D‐MBene and Its Application to MgH2 Hydrogen Storage

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Two‐dimensional Mn‐based MBenes remain challenging to synthesize due to structural instability during etching. Herein, Mn2AlB2 was employed as a precursor to systematically investigate Al removal via HF, NaOH, and a gas–solid route using PVDF‐derived HF.
Tao Zhong   +6 more
wiley   +1 more source

Mesoporous Hexametallic High‐Entropy Alloy Nanotubes With Multicomponent Electronic Modulation for Efficient Bifunctional Catalysis

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Platinum‐based electrocatalysts are fundamentally constrained by strong oxygen binding, which restricts the oxygen reduction reaction (ORR) kinetics, and by severe CO poisoning, which hinders the methanol oxidation reaction (MOR). To address these limitations, we synthesized PdPtRuIrRhNi high‐entropy alloy (HEA) mesoporous nanotubes that ...
Hong Pan   +6 more
wiley   +1 more source

用于氧化反应的反应控制相转移催化剂及其氧化反应过程

open access: yes, 2002
一种用于氧化反应的反应控制相转移催化剂及其氧化反应过程,包括杂多酸类QmHnXMpO4+3p和络合物类QmMO3(L)化合物;在反应中催化剂本身不溶于反应介质中,但在反应物之一的作用下,能够形成可溶于反应介质中的活性物种,进而与另一反应物作用,使其选择性地反应,而当反应物之一被消耗完,催化剂即恢复到起始的结构便从反应体系中析出。本发明催化剂的分离和多相催化剂相似,而在反应过程中则完全体现出匀相催化剂的特点,能够满足技术经济的要求,是适合大规模工业应用的新型催化剂 ...
周宁, 李坤兰, 奚祖威, 孙渝
core  

Synergistic Effect of Hydrophilic Surface and Nano‐Ag2O in TiO2‐Based Composites Coating on Antibacterial and Osteogenic Properties of Low Modulus Ti‐Mo‐Ag Alloy

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Ti‐15Mo‐2.5Ag alloy exhibited a low modulus and strong antibacterial ability but poor bioactivity. To resolve this problem, sandblasting and anodization were used to create a hydrophilic and nano‐Ag2O‐containing TiO2 coating. Subsequently, the microstructure and physicochemical properties were investigated by scanning electron microscopy, X ...
Yanchun Xie   +11 more
wiley   +1 more source

用于氧化反应的催化剂及在氧化反应中的应用

open access: yes, 2006
一种用于氧化反应的可逆负载催化剂可用通式QmHnXMpO4+3p/S(I) 表示。可逆负载催化剂在反应物的作用下,催化剂的活性组份与载体分离进入反应介质中形成活性物种,从而进行均相催化氧化反应,具有催化活性高,选择性好的特点,当反应结束后,反应介质中催化剂的活性组份又与载体结合形成原来的负载催化剂,催化剂可以方便地分离和回收,并可循环使用。解决了一般负载催化剂催化活性降低和金属流失的问题,是适合工业应用的新型催化剂 ...
高 爽   +4 more
core  

Insights Into the Temperature‐Dependent Oxidation Mechanism of Metallic Cerium in H2O‐N2 Atmospheres

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Metallic cerium (Ce), a widely used surrogate for actinide metals, enables mechanistic studies of reactions in complex gas environments under controlled and safer laboratory conditions. Here, the oxidation behavior of Ce in H2O‐N2 mixed atmospheres was investigated from 200°C to 350°C using in situ thermogravimetry–mass spectrometry, in situ X‐
Kun Huang   +10 more
wiley   +1 more source

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