Results 61 to 70 of about 4,833 (164)

An Environmental‐Friendly and Sustainable Ramie‐Derived Co/N‐Doped Carbon With Dual Function for Synergistic Polysulfide Regulation in Li‐S Batteries

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT The dual challenges of environmental sustainability and rising energy needs underscore the necessity for high‐energy‐density batteries, making lithium–sulfur (LSB) systems with their high theoretical capacity highly attractive. However, the polysulfide shuttle, coupled with inherent kinetic limitations in the sulfur reduction reaction ...
Bingbo Ni   +4 more
wiley   +1 more source

Thermally Driven Hydrogenation of CO2 to Light Olefins Over Hollow Cubic In2O3‐La‐ZIF‐8 Tandem Catalyst

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Thermally driven hydrogenation of CO2 to light olefins (C2=–C4=) using metal oxide‐zeolite tandem catalysts is an effective strategy for achieving carbon neutrality. However, progress in this area is constrained by zeolite pore transport limitations, acid‐site inactivation, and surface carbon poisoning.
Haifeng Tian   +10 more
wiley   +1 more source

山东省农业净碳汇时空演化特征分析

open access: yesShuitu Baochi Xuebao, 2019
基于农地利用、水稻种植、畜禽养殖、秸秆焚烧4大方面25类主要碳源和17类主要农作物碳汇,测算了山东省2000-2015年及全省17个地级市2000年、2007年、2015年的农业碳排放量和碳汇量,在此基础上计算出农业净碳汇量和净碳汇强度,并对其时空演化特征进行分析。结果表明,2000-2015年间山东省农业净碳汇总量和净碳汇强度均呈上升趋势,分别增长33.05%和39.14%,农业发展的碳效应以碳汇为主,减排增汇效果明显;农业净碳汇量区域差异明显且随时间的变化呈扩大趋势,存在净碳汇量持续增长型 ...
吕斯涵, 张小平
doaj  

Designing 3d Transition‐Metal Doped g‐C3N4 Monolayer for Enhanced Bifunctional Oxygen Evolution/Reduction Reactions Activity: Defect Physics and Constant‐Potential Study

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Graphitic carbon nitride (g‐C3N4) doped with 3d transition metals (3d‐TM@g‐C3N4) has gained attention as a noble metal‐free alternative for oxygen evolution and reduction reactions (OER/ORR). Yet the key mechanisms driving its performance remain debated, especially across different charge states.
Jing Zhang   +6 more
wiley   +1 more source

高强度碳纤维索在上海美的全球创新园区项目中的设计和应用探索

open access: yesJianzhu Gangjiegou Jinzhan
碳纤维拉索具有轻质和超高抗拉强度的优点,适用于建筑结构的受拉构件中,其应用的推广有助于推进建筑行业节能减排的进行。国内目前尚未出台关于碳纤维索结构设计方面的规范和标准,高强度、大吨位的碳纤维索在我国房屋建筑中尚无应用先例。为了推进碳纤维索的研究和应用,在美的全球创新园区项目中,局部应用了强度等级为2 800 MPa的高强度碳纤维平行筋索,其中规格为7×139拉索的破断荷载达14 991 kN。文章介绍了在项目中碳纤维索的力学性能和承载力的确定过程及碳纤维索结构的抗震计算和防连续倒塌计算 ...
李明菲, 邢佳宇
doaj   +2 more sources

陕西省土地利用变化的碳排放效益研究

open access: yesShuitu Baochi Xuebao, 2011
以陕西省为例,运用1989-2008年全省耕地、林地、草地、建设用地的面积数据和全省煤炭、石油、天然气消耗数据以及2006年11个地级市耕地、林地、草地和建设用地面积数据,采用回归分析、IDW插值和Hopfield神经网络对其进行模拟,分析不同土地利用方式的碳排放效益,得出以下主要结论:(1)1989-2008年,全省的碳排放总量大体呈增加的趋势,年均增加178.869万t.(2)建设用地和耕地是主要碳源,林地和草地是主要碳汇.(3)2006年的断面数据表明,陕西省碳排放总量存在明显的区域差异 ...
苏雅丽, 张艳芳
doaj  

Accurate monitoring and accounting of methane emission in underground coal mine [PDF]

open access: yes
Methane, the second most prevalent greenhouse gas globally, is characterized by its high global warming potential and short atmospheric lifetime. It is primarily emitted from sectors such as coal mining, oil and gas production, agriculture, livestock ...
Beijing XIE   +7 more
core   +1 more source

Pyrolysis‐Engineered Fe/Mn‐ZIF Catalysts: Balancing Activity, Selectivity, and Stability for the Oxygen Reduction Reaction

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Metal oxide‐based catalysts for oxygen reduction reaction (ORR) have drawn great attention in recent years. However, it remains technically challenging for the precise regulation of the overall performance due to the trade‐off effect among the activity, selectivity, and stability of electrocatalysts. Herein, a balancing strategy to control the
Haoran Ma   +7 more
wiley   +1 more source

Application and Prospect of AI Technology in Power System Development [PDF]

open access: yes
[Introduction] In the face of energy scarcity and carbon reduction imperatives, the transition to clean energy centered on electricity is crucial.
Bin SHU   +4 more
core   +1 more source

A Review on Cu‐Based Catalysts for Dehydrogenation of Chemical Hydrides

open access: yesRare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT Hydrogen (H2) plays a crucial part in the building of clean and sustainable energy systems due to its advantages of being renewable, clean, and pollution‐free. Nevertheless, the secure and effective production‐storage‐transportation of H2 presents critical challenges.
Yixing Luo   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy