Results 31 to 40 of about 377,559 (136)

Upcycling of Waste Polyethylene Terephthalate Plastics to Fabricate Cobalt–Nickel Metal–Organic Frameworks and Their Phosphides for Efficient Oxygen Evolution Reaction

open access: yesRare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT The urgent environmental crisis caused by polyethylene terephthalate (PET) waste necessitates efficient upcycling strategies. Herein, we establish a novel pathway to transform waste PET plastic into a high‐performance catalytic material for mediating the oxygen evolution reaction (OER). Through a one‐step hydrothermal process, waste PET serves
Xin Wang   +5 more
wiley   +1 more source

Gadolinium‐Induced Activation of CoNiO2 for Efficient Oxygen Evolution: A Structural and Electronic Modulation Approach

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Multicomponent transition metal oxides (TMOs) incorporating rare‐earth (RE) elements have emerged as promising materials for the oxygen evolution reaction (OER). However, knowledge of how to regulate the structure of TMO‐based nanomaterials through RE incorporation to enhance catalytic performance remains limited.
Bolin Zhao   +6 more
wiley   +1 more source

设备吸附剂对SF6气体分解产物检测结果影响的试验研究

open access: yesGaoya dianqi, 2013
笔者结合吸附剂的吸附原理,搭建了吸附剂试验平台,设计了试验流程,完成了大量试验,旨在探索设备中吸附剂对气体分解产物定量检测结果的影响。文中主要研究了吸附剂对分解产物的吸附影响,通过试验研究,确定了影响SF6电气设备中分解产物检测结果的主要因素,包括容器材质、吸附剂种类、吸附剂用量、吸附剂安装位置等,并比较了相同条件下各种气体分解产物的吸附速率。文中结论对通过分解产物检测判断开关设备运行状况有重要指导意义。
苏镇西, 赵也
doaj  

FeCoNiCuPt High‐Entropy Alloy as a Robust Catalytic Shield Against Polysulfide Shuttling in Li–S Batteries

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Efficient catalytic materials are vital for addressing the polysulfide shuttle and sluggish redox kinetics in lithium–sulfur batteries. Herein, we report a facile sugar‐blowing method to prepare porous carbon‐supported FeCoNiCuPt high‐entropy alloy (HEA) nanospheres with abundant lattice defects in a single crystalline phase.
Guixiang Zhong   +8 more
wiley   +1 more source

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

Ce-Zn复合吸附剂的制备及除磷性能研究

open access: yesGongye shui chuli, 2023
以Ce(NO3)3·6H2O和Zn(NO3)2·6H2O为原料,采用共沉淀法制备Ce-Zn复合吸附剂,利用傅里叶变换红外光谱(FT-IR)、X射线衍射(XRD)、扫描电镜(SEM)对其进行表征,对吸附过程进行动力学和热力学拟合,通过正交实验确定吸附除磷的最佳工艺条件,并对吸附剂进行再生处理,研究其可循环利用性能。结果表明,复合吸附剂表面生成了水合氧化铈和氧化锌颗粒,表面粗糙,呈多孔结构;磷酸盐离子取代复合吸附剂表面的金属羟基是吸附除磷的主要原因。除磷最佳工艺条件:磷初始质量浓度为5 mg/L,pH为4 ...
李秀玲   +3 more
doaj   +2 more sources

染料中间体废水的治理及再利用

open access: yesGongye shui chuli, 2003
采用树脂吸附法治理2-羟基-3-萘酸(2,3酸)废水。研究了不同树脂吸附剂、脱附溶剂以及吸附倍数、停留时间对处理效果的影响。试验结果表明:用DF-211树脂吸附剂在pH为2,流速为4~8BV/h条件下,吸附倍数达到80~120BV,用溶剂E脱附后,树脂可反复使用。
王璐璐
doaj   +2 more sources

From Dendrite Accelerator to Suppressor: Engineering a Self‐Assembled Monolayer for Ultrafast and Dendrite‐Free Zinc Deposition

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Aqueous zinc‐ion batteries are plagued by anode challenges such as dendrite growth and corrosion, which stem from intrinsic surface heterogeneity. Although constructing a homogeneous interfacial layer is a promising strategy, conventional electrolyte additives often suffer from incomplete or unstable coverage.
Ke Huang   +6 more
wiley   +1 more source

高吸水量分子筛吸附剂及其制备

open access: yes, 1996
一种高吸水量分子筛吸附剂是由超大孔MCM—41分子筛10~85%,A型分子筛0~80%,X型或Y型分子筛0~80%,粘土5~20%的重量百分比配制而成,且作为吸附剂组分的MCM—41分子筛的吸水量应大于70%。其制备方法是将上述各组分按其配比混合,加入少量粘结剂成型,并于500~600℃下进行焙烧而制得。该吸附剂的吸水量为25~65%,适用于各种场合作净化气体的脱水剂使用 ...
李宏愿
core  

Dual‐Engineered Electrocatalyst: Work‐Function‐Driven Electronic Reconfiguration and Self‐Sacrifice Nanorod‐Templated Nanoflowers of Ni3S2/MoS2 Heterojunctions for High‐Performance Hydrogen Evolution

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Water electrolysis is a promising method for green hydrogen production, but slow hydrogen evolution reaction (HER) kinetics require efficient catalysts. In this study, we develop a Ni3S2/MoS2 heterostructure electrocatalyst using a work‐function‐driven electronic modulation strategy combined with a self‐sacrificial template approach.
Xinxin Zhao   +11 more
wiley   +1 more source

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