Results 31 to 40 of about 10,441 (118)

Bimetallic Mo/Fe‐Doped CoP2 Nanoleaf Array as a Bifunctional Electrocatalyst for Overall Water Splitting

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT The development of efficient and stable bifunctional catalysts remains a key challenge for green hydrogen production via electrochemical water splitting. In this study, a bimetallic Mo/Fe‐doped CoP2 nanoleaf array anchored on carbon cloth (Mo, Fe‐CoP2@CC) was synthesized from zeolitic imidazolate framework‐L (ZIF‐L) via an ion‐exchange and low‐
Xiangqun Zeng   +6 more
wiley   +1 more source

湿地沉积物磷的吸附与解吸研究

open access: yesShuitu Baochi Xuebao, 2008
采用恒温培养法研究美国纽约Pelham Bay Park 6种典型淡水湿地沉积物中磷的吸附与解吸行为及其动力学过程。结果表明:湿地沉积物具有强烈吸附溶液中磷的功能,随着溶液中磷浓度的增加,吸附量增大;但是湿地沉积物也有释放磷到溶液中去的功能,释放量为0~41.19 mg/kg,与沉积物吸附磷量的关系不大,沉积物释放磷与沉积物的特性有关。衡量一种淡水湿地沉积物的除磷能力,可根据沉积物最大吸附磷量和吸附解吸附平衡浓度(EPC0)来衡量,6种沉积物中,磷的最大吸附能力强弱依次是:S1>S2>S3>S6>S5 ...
黄树辉, 曾光辉, 黄宏
doaj  

Optimizing the Surface Coordination of Pd‐Cu Nanoalloy Through Chemical Ordering to Enhance Hydrogenation Selectivity

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Precise control of chemical ordering in bimetallic nanocatalysts offers a route to decouple activity and selectivity in acetylene hydrogenation, but direct atomic‐scale evidence linking surface order to catalytic performance is scarce. Here, we tune Pd‐Cu nanoalloys from chemically disordered to highly ordered states by composition control and
Fan Xue   +5 more
wiley   +1 more source

Nanofiltration Membranes for High‐Selectivity Separation of Li+ and Mg2+ From Salt Lake Brines: Strategies, Challenges, and Perspectives

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Against the backdrop of global clean energy transition and surging demand for lithium resources, lithium extraction from salt lakes presents unprecedented development opportunities. Nanofiltration (NF) membrane technology, recognized for its efficiency, energy savings, and environmental benefits, demonstrates significant application potential ...
Wen‐Feng Li   +5 more
wiley   +1 more source

Synergy of Built‐In Electric Field and Surface Reconstruction of Co–NiS/Ni3S2 Nanowires for Enhanced Bifunctional Activity and Anti‐Chlorine Corrosion in Seawater Electrolysis

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT The development of efficient and stable bifunctional electrocatalysts is a key challenge for the industrialization of hydrogen production by water electrolysis. In this work, Co‐doped NiS/Ni3S2 heterostructured nanowire arrays (Co–NiS/Ni3S2 NA) were successfully constructed by precisely modulating the phase‐selective behavior of nickel ...
Xing‐Hang Liu   +2 more
wiley   +1 more source

Phosphorus‐Doping Drives the Formation of a Pt‐Skin@PtFe Alloy Catalyst With Modulated d‐Band Center for Oxygen Reduction

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Platinum (Pt)‐based catalysts are crucial for the commercialization of hydrogen/metal air batteries, but they suffer from Pt scarcity, high cost, and nanoparticle dissolution/agglomeration, mainly leading to performance degradation. We address this by synthesizing a PtFe alloy catalyst (PtFe–PA–NC) via a phytic acid (PA) assisted pyrolysis ...
Chenyang Shu   +9 more
wiley   +1 more source

环保型绝缘介质C5F10O与Cu(110)晶面的气固相容性研究

open access: yesGaoya dianqi, 2021
为研究环保型绝缘介质C5F10O与绝缘设备内部紫铜材料间气固相容性,文中基于密度泛函理论(DFT)从微观层面对C5F10O与Cu(110)晶面展开分析。首先,采用前线分子轨道理论分析C5F10O分子官能团活性,建立C5F10O在Cu(110)晶面上吸附构型;其次,计算C5F10O在Cu(110)晶面上不同吸附构型产生吸附能及转移电荷;最后,建立SF6在Cu(110)晶面上吸附构型,分析C5F10O与SF6吸附特性差异。研究结果表明:C5F10O分子结构中氧原子活性较高,在Cu(110 ...
张然植   +4 more
doaj  

Tailoring Spin States of CuNNi3 via d‐d Orbital Coupling for High Performance Water Splitting

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Against the backdrop of escalating global energy crises and environmental challenges, the development of clean and sustainable hydrogen energy has become increasingly imperative. Hydrogen production via water electrolysis is widely regarded as a promising approach due to its green and efficient characteristics.
Weigao Zhong   +6 more
wiley   +1 more source

棕壤对铜的吸附特性研究

open access: yesShuitu Baochi Xuebao, 2006
棕壤对铜的吸附特性以及土壤条件对吸附的影响进行了研究,结果表明,棕壤对铜的吸附随溶液中铜的平衡浓度增加而增加,但在高浓度时增幅渐缓,与处于相同地区的褐土相比棕壤的吸附相对较弱,其吸附可用Langmiur、Frundlich、Temkin及米氏方程进行描述。土壤酸度增强,棕壤对铜的吸附降低,用H^+浓度对Frundlich方程进行修饰,能更好地描述铜的吸附状况。此外,离子强度、陪伴离子对吸附都有影响,随离子强度增加及高价陪伴离子比例的上升吸附减弱。
李文庆, 张民, 束怀瑞
doaj  

Surface Sulfate Modification Promoted Excitons Extraction of BiOBr Nanosheets for Efficient 1O2 Photosynthesis and Chlorophenols Dechlorination

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT Photocatalytic molecular oxygen (O2) activation provides a sustainable approach to produce singlet oxygen (1O2) for organic contaminants detoxification. However, the charge carriers‐involved pathway usually suffers from unsatisfactory 1O2 production efficiency owing to energy loss caused by photogenerated hole‐mediated superoxide species (•O2−
Yan‐Biao Shi   +8 more
wiley   +1 more source

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