Results 21 to 30 of about 1,559,200 (81)

Oxygen‐Vacancy‐Engineered Ni‐Fe Layered Double Hydroxides Enables Ultralow‐Overpotential Hydrogen Evolution Reaction and Durable Overall Water Splitting

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Layered double hydroxides (LDHs) are attractive non‐noble catalysts for overall water splitting (OWS), yet their hydrogen evolution reaction (HER) activity is often limited by suboptimal *H adsorption and a paucity of accessible sites. Herein, we introduce an oxygen‐vacancy (Ov) engineering strategy to construct ultrathin Ni‐Fe LDH nanosheets ...
Qi Liu   +8 more
wiley   +1 more source

Ionic‐Liquid‐Assisted Synthesis of NiTe/CoTe Heterostructure With Te Vacancies in N, P, and F Co‐Doped Hollow Carbon Nanorods for Efficient Alkaline Hydrogen Evolution and High‐Performance Flexible Supercapacitors

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Low conductivity, slow ion‐diffusion, and limited reactive sites are common problems in electrocatalysts and electrode materials. In this study, a complex NiTe–CoTe heterojunction with abundant Te vacancies embedded in N, P, and F co‐doped hollow carbon nanorods (NiTe1−x–CoTe1−x/NPFC) was fabricated via a simple ionic liquid‐assisted ...
Mingjie Yi   +7 more
wiley   +1 more source

DH- 3 试剂对废水中微量Cu2+的吸附动力学研究

open access: yesGongye shui chuli, 2009
以DH-3 型复配水处理试剂处理含Cu2+废水,研究了其对溶液中微量Cu2+的吸附作用,考察了Cu2+浓度 梯度、pH、吸附时间等条件对其吸附性能的影响,得出DH-3 型水处理试剂处理含Cu2+废水的适用范围,在pH 2.5~ 6.5,试剂质量分数1.0%,搅拌30 min 的条件下,可将含Cu2+质量浓度200 mg/L 的废水处理至<1.0 mg/L,达到国家二 级排放标准。同时对相关试验数据进行处理,得到试剂对Cu2+吸附作用的吸附平衡常数、吸附速率常数等吸附动力 学参数。另外通过利用DH ...
邓小兵
doaj   +2 more sources

3D‐Printed Porous High‐Entropy Alloy Boosts Peroxymonosulfate Activation for Long‐Term Organic Pollutant Degradation

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT High‐entropy alloys (HEAs) have attracted considerable interest from researchers owing to their tunable chemical compositions, exceptional structural stability, and promising catalytic properties. However, their large‐scale application is often hindered by complex manufacturing techniques and poor durability.
Sheng Guo   +9 more
wiley   +1 more source

Dual Synergistic Effects in a Ce‐Modified MnO2/MnO Heterostructure Enabling Outstanding Acidic Oxygen Evolution

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT The development of highly efficient and stable nonprecious metal electrocatalysts for the acidic oxygen evolution reaction (OER) is crucial to advance proton exchange membrane (PEM) water electrolysis. In this work, a dual synergistic strategy was proposed by constructing a Ce‐modified MnO2/MnO heterostructure.
Chuanbin Li   +7 more
wiley   +1 more source

荧光标识水处理剂的研究进展

open access: yesGongye shui chuli, 2003
利用荧光示踪技术检测水处理剂的残留量是一种有效的方法。作者讨论了荧光标识水处理剂的技术优势和应用前景,较全面地综述了国内外关于荧光标识水处理剂的合成、应用等方面的研究,依据其合成方法的不同分别对物理共混、聚合物改性、荧光单体共聚三个方面进行阐述,尤其是对荧光单体共聚制备荧光标识水处理剂作了重点介绍。并对荧光标识水处理剂在实现水处理系统在线监测和实时控制中的应用作了简要的介绍。
蔡超, 吴大成, 郭睿威
doaj   +2 more sources

Ultrafast Catalytic Decomposition Reaction Using a ZIF‐67@Cellulose Nanofiber Composite‐Based Cobalt/ Nitrogen Co‐Doped Nanoporous Carbon for Water Treatment

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Recently, cobalt/nitrogen co‐doped materials have emerged as heterogeneous catalysts to activate peroxymonosulfate (PMS) and have been applied to advanced oxidation processes for environmental remediation. However, their recyclability and reusability remain major barriers to practical application.
Wen‐Kai Zhu   +11 more
wiley   +1 more source

Effect of a Spray Containing Occlusive Agents, Humectants and Physiological Lipids on Skin Hydration of Healthy Dogs When Applied After Bathing With a Chlorhexidine 2%/Miconazole 2% Shampoo

open access: yesVeterinary Dermatology, Volume 37, Issue 1, Page 140-147, February 2026.
Background: Normal hydration of the canine epidermis is imperative for cutaneous homeostasis. Xerosis may be encountered in canine atopic dermatitis and may be aggravated by topical antiseptics. Hypothesis and Objectives: To evaluate the hydrating properties and the safety of a spray (Sensiderm spray; MP Labo) when applied after shampooing healthy dogs
Adamantia Pseftogka   +3 more
wiley   +1 more source

Hollow Porous Nitrogen‐Doped Carbon‐Confined FeP/Fe2P Nanoparticle‐Armored Catalyst for Efficient Oxygen Reduction Reaction in Aqueous/Flexible Zinc‐Air Batteries

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT The design of nanoparticles confined in hollow N‐doped carbon structures is crucial for improving the oxygen reduction reaction (ORR) kinetics, yet achieving this remains a significant challenge. In this work, hollow porous nitrogen‐doped carbon encapsulated FeP/Fe2P (H‐FeP/Fe2P) were successfully constructed via a templating method combined ...
Li‐Xia Wang   +8 more
wiley   +1 more source

美国水处理化学品市场现状与展望

open access: yesGongye shui chuli, 1998
从缓蚀剂、阻垢剂、杀生剂和絮凝剂四个方面介绍了美国水处理化学品的研制、生产和销售现状以及发展趋势.美国水处理市场总销售额为321亿美元,其中专用水处理化学品占27亿美元.预计2000年前美国水处理市场将以年均3%~5%的速度增长.随着工业企业间兼并与战略联合增多,国际性全方位水处理服务公司将在市场中起主导作用.美国国内水处理市场已日趋饱和,为寻求发展,各水处理公司必须开拓国外市场.
杨巍
doaj   +2 more sources

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