Results 21 to 30 of about 125,187 (145)

Competitive Anion Coordination Modulates Anode Interfacial Chemistry for Wide‐Temperature Sodium Batteries

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Sodium‐ion batteries (SIBs) offer a promising, cost‐effective alternative for large‐scale energy storage due to the abundance of sodium. However, their practical deployment is challenged by sluggish interfacial kinetics and unstable interphase formation, which severely limit performance across wide temperature ranges. Here, we demonstrate that
Mingxing Zhang   +10 more
wiley   +1 more source

Enhanced Oxygen Reduction Reaction Performance of Fe‐N4 Single‐Atom Catalysts Through Fe3C Coupling

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Understanding the electronic factors contributing to the high oxygen reduction reaction (ORR) activity of Fe‐N4 sites remains a significant challenge due to the localized Fe 3d orbitals and their sensitivity to the coordination environment.
Shichang Cai   +19 more
wiley   +1 more source

Engineering Stress‐Decoupled SnP2O7@Carbon Core Shell via Spatial Confinement for Cycling‐Stable Sodium Storage

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Tin‐based composite oxides typically undergo severe volume variations and exhibit poor intrinsic conductivities despite their high theoretical capacity as promising anode candidates for sodium‐ion batteries. This results in rapid structural degradation and capacity fading upon cycling.
Yongmei Sun   +5 more
wiley   +1 more source

Dual‐Phase Interpenetrating Reinforcement Enables an Ultrathin Sodium Metal Anode for High‐Energy‐Density Batteries

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT Ultrathin sodium (Na) metal anodes (< 40 μm) with superior electrochemical performance are essential in developing high‐energy‐density sodium metal batteries (SMBs). Nonetheless, Metallic Na's poor processability hinders its practical application.
Hao Yao   +6 more
wiley   +1 more source

微生物电解乙酸合成高值有机物

open access: yes四川大学学报. 自然科学版, 2015
以微生物电解池为平台,考察了阴极电势,pH以及初始乙酸盐浓度对乙酸还原及其丁酸、乙醇等产物积累的影响.结果显示,恒定阴极电势-900mV(vs.Ag/AgCl)、pH6.0时,初始乙酸钠浓度为1.0g/L时,丁酸产量最高,可达到80(±5)mg/L,乙醇积累26(±5)mg/L.在-900mV阴极电势下,总碳回收率达到63.2%,产物电子回收率为13.06%;在-800mV阴极电势下,总碳回收率达到42.8%,产物电子回收率为54.4%.控制阴极电势-850mV,初始乙酸钠浓度由1g/L增加到5g/L ...
王娟   +5 more
doaj  

Unveiling Entropy‐Driven Hard‐Tough Synergy Mechanisms in High‐Entropy Carbonitride Ceramics

open access: yesRare Metals, Volume 45, Issue 9, September 2026.
ABSTRACT High‐entropy ceramics manifested promise for extreme environments, yet their phase stability and mechanical synergy mechanisms remain elusive. Herein, entropy‐difference carbonitrides, including (TaTiV)CN, (TaTiVNb)CN, and (TaTiVNbHf)CN, were designed and consolidated via spark plasma sintering.
Long Zhao   +6 more
wiley   +1 more source

一种复配缓蚀剂对Q235碳钢的缓蚀性能及机理研究

open access: yesGongye shui chuli, 2022
为了进一步探究、提高绿色缓蚀剂的缓蚀性能和缓蚀机理,研究了一种Q235碳钢材料的复合绿色缓蚀剂。利用重量法、阻抗图谱(EIS、Bode)、动电位极化曲线、扫描电子显微镜(SEM)及能谱分析(EDS)探讨了在自来水介质中,钨酸钠、葡萄糖酸钠和Zn2+对Q235碳钢材料的缓蚀协同作用。结果表明:钨酸钠、葡萄糖酸钠和Zn2+三元药剂在该体系中有较强的协同缓蚀作用。当钨酸钠、葡萄糖酸钠、Zn2+质量浓度分别为40、20、4 mg/L时,协同缓蚀效果最好,缓蚀率最高达到90%以上 ...
刘会媛   +3 more
doaj   +2 more sources

Alloy‐Type Anode Materials for Sodium‐Ion Batteries: From Single Metals to MultiComponent Alloys

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Sodium‐ion batteries (SIBs) are widely regarded as a promising alternative to lithium‐ion batteries due to their abundant sodium resources, broad geographical distribution, and low cost, rendering them particularly attractive for large‐scale energy storage applications.
Zicheng Yin   +12 more
wiley   +1 more source

MOF/MXene Composites for Advanced Electrochemical Energy Storage: Transitioning From Laboratory Research to Practical Application

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Composites of metal–organic frameworks (MOFs)/two‐dimensional transition metal carbides/nitrides (MXene) have been widely recognized as promising electrode materials for advanced electrochemical energy storage systems due to their synergistic structural advantages and tunable electrochemical properties.
Wenjun Zhu   +5 more
wiley   +1 more source

锌溴氧化还原液流电池正极电极及其制备

open access: yes, 2011
本发明涉及锌溴氧化还原液流电池正极电极及其制备方法,包括碳塑复合材料板,及在碳塑复合材料板的一侧表面附着的高比表面积的催化层;催化层由粘接剂氯化聚丙烯或氯化聚乙烯、催化剂活性炭或碳载金属、导电剂导电石墨或碳黑构成。本发明是在聚丙烯、聚乙烯等热塑性导电板上涂覆或粘接高比表面积的催化层,同时兼顾较高的比表面积和高导电率,提高了正极溴的氧化还原活性和整体的导电性能。避免了使用传统碳毡电极时导致的电极厚度过大和由于碳毡差异导致的电池性能差异等问题,可以作为取代传统碳毡电极的新型锌溴液流电池正极电极 ...
赖勤志   +3 more
core  

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