Results 21 to 30 of about 871,581 (165)

Enhancing Oxygen Evolution Reaction Activity in NiCo2O4 Catalysts Through Morphology and Oxygen Vacancy Engineering

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Developing oxygen evolution reaction (OER) catalysts that combine high performance with cost‐effectiveness is a critical challenge for advancing the commercialization of anion exchange membrane water electrolysis (AEMWE). Practical application is often hindered by issues such as poor batch reproducibility and low‐cost efficiency.
Chuang Zhang   +9 more
wiley   +1 more source

旁路生物稳定塘系统净化滇池入湖河道污水

open access: yes, 2008
为削减滇池的入湖污染负荷,基于旁路净化的思路设计并构建了包括水生植物塘和养殖塘在内的生物稳定塘系统,考察了对氮、磷的去除效果。结果表明,系统对TN、TP、NO3--N和NH3-N的平均去除率分别为25.3%、50.6%、38.4%和35.6%,在改善水质的同时还具有一定的生态景观效益 ...
唐涛, 蔡庆华, 黄亮, 黎道丰
core   +2 more sources

Hobbyist preferences for pet freshwater turtles

open access: yesConservation Biology, Volume 40, Issue 2, April 2026.
Abstract The burgeoning pet trade is a primary threat to wild freshwater turtles worldwide. Although the risks from commercial exploitation of turtles have been discussed widely, there is little empirical research on preferences for pet turtles from a hobbyists’ perspective.
Jingjing Zhao   +7 more
wiley   +1 more source

Progress in Surface‐Enhanced Raman Scattering‐Based Volatile Organic Compounds Detection: Materials, Application, and Prospects

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT The detection of volatile organic compounds (VOCs) holds significant implications in environmental monitoring and disease diagnosis. Traditional gas detection technologies are constrained by complex operation and high cost, thereby failing to satisfy real‐time detection demands.
Yuening Wang   +11 more
wiley   +1 more source

Electrospun Carbon Nanofiber‐Based Multifunctional Electrocatalysts for Zinc‐Air Batteries and Overall Water Splitting: Fabrication, Progress, and Perspective

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT The development of high‐performance and stable electrocatalysts for oxygen reduction reaction (ORR), oxygen evolution reaction (OER), and hydrogen evolution reaction (HER) plays a critical role in advancing clean energy technologies, including metal‐air batteries and hydrogen production through overall water splitting.
Chen‐Yu Cai   +4 more
wiley   +1 more source

Rational Design of Multifunctional Nano–Architected Coatings for Bipolar Plates in Proton Exchange Membrane Fuel Cells

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Proton exchange membrane fuel cells (PEMFCs) require advanced bipolar plate coatings to enhance efficiency, durability, and commercialization potential. This review presents a systematic framework for evaluating and designing bipolar plate coatings, integrating material selection, performance metrics, deposition techniques, and future ...
Shijie Li   +12 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

离轴球面波的传输性质和非稳定腔模的二维稳定性问题

open access: yes, 1981
本文提出对离轴点光束及其传输性质的矩阵描述方法,导出光束参数变换关系,把轴点光束情况下的ABCD定律推广到离轴情况.以二维稳定性观点严格地讨论了非稳定腔光线模的稳定性问题,证明会聚光束不稳定 ...
朱如曾
core  

Acid‐Etched Co‐Vacancy‐Tunable CoFeP/N,P‐Codoped Carbon Nanocages for Highly Efficient Alkaline Water Electrolysis

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Efficient and durable bifunctional electrocatalysts are vital for scalable water electrolysis. Here, we realize cobalt‐vacancy (Covac) engineering in CoFeP supported on N,P‐codoped carbon nanocages (Co1‐vacFeP/NPC) through a simple route comprising a CoFe Prussian blue analog precursor, phosphidation–pyrolysis, tannic‐acid etching, and a ...
Yuan‐Liang Yuan   +6 more
wiley   +1 more source

粘质海底稳定性实例分析

open access: yes, 1996
本文对南海珠江口盆地大陆架区和东海浙江沿岸象山港的粘质海底进行了稳定性分析。通过实例分析判定了该地区不稳定性的原因,并给出了稳定性估计的直观图 ...
顾小芸
core  

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