Results 51 to 60 of about 31,990 (158)
Gongye shui chuli, 2023 生物炭因其比表面积大、表面官能团丰富和孔隙结构发达等优势在废水处理领域具有广阔的应用前景。未改性生物炭对污染物的吸附性能不理想，可通过改性方式提升其吸附性能。总结了生物炭的制备条件（热解温度、升温速率、保温时间）和改性方法（酸/碱改性、老化改性、有机物改性、纳米材料改性、蒸汽改性和球磨改性）对生物炭吸附去除污染物的影响。概括了生物炭对重金属离子和有机污染物的吸附机理，其中生物炭吸附去除重金属离子的相互作用包括静电吸附、离子交换、物理吸附、表面络合、共沉淀等，而吸附去除有机污染物的相互作用包括孔隙填充 ...
臧金秋 +8 more
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Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT The demand for advanced aerospace components necessitates near‐α titanium alloys with enhanced high‐temperature performance and compatibility with additive manufacturing (AM). To address this, an in situ alloying strategy was employed to co‐modify a Ti‐6.5Al‐2Zr‐Mo‐V alloy with Si and Y during laser powder bed fusion.
Zishuo Ma +10 more
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Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Rationally designing an electrocatalyst to achieve stable and efficient urea oxidation reaction (UOR) is crucial but still challenging, especially for ampere‐level application. Herein, Mn and Fe dual‐doped Ni0.85Se (Mn/Fe–Ni0.85Se) catalyst is synthesized via a facile and scalable electrodeposition and followed by selenization.
Guanglin Zhu +6 more
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Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Precipitation of isothermal ω phase is an effective way to strengthen the metastable β‐Ti alloys but generally severely embrittles the materials by suppressing stress‐induced martensitic transformation and deformation twinning. Here, we architect heterogeneous structures with tailored ω phase in a metastable β‐Ti‐20Zr‐12Nb‐2Sn alloy via ...
Yang Liu +6 more
wiley +1 more source
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Lithium–sulfur batteries have attracted extensive interest owing to their exceptionally high theoretical energy density and environmental benignity. However, their practical performance remains severely constrained by intrinsic challenges, including the polysulfide shuttle effect and large volume expansion during cycling, which markedly ...
Long Jiang +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Gradient structures (GS) introduced by plastic deformation have been shown to effectively enhance the surface properties of metallic materials. However, the GS fabricated by existing methods often suffers from limited hardening depth and limited control over the GS layer, which constrain their engineering applications.
Yansong Guo +5 more
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Coupled Structural Characteristics Boost Brazing Performance of Ti2AlNb Alloy
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Brazing of Ti2AlNb alloy is a pivotal technique for new generation aero‐engine lightweight structures, yet developing novel filler metal and achieving the extraordinary performance of titanium alloy brazed joints remains challenging. Here, this study designed an innovative filler metal (Ti70‐xZrxCu15Ni15) and developed inspired coupled ...
Yinchen Wang +13 more
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Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Na‐superionic‐conductor‐type (NASICON) Na4MnV(PO4)3 (NMVP) is an appealing cathode for sodium‐ion batteries (SIBs), but its application is hindered by Jahn–Teller distortions, sluggish Na+ kinetics and poor conductivity, leading to rapid capacity fade.
Huan Liu +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT A central challenge in alkaline water electrolysis is the development of hydrogen evolution reaction (HER) electrocatalysts that simultaneously maintain high activity and structural stability at industrial current densities. Hydroxide‐based supports that facilitate water dissociation are particularly susceptible to over‐reduction and ...
Feng Chen +9 more
wiley +1 more source
Gongye shui chuli, 2022 草甘膦是造成水体富营养化的典型有机磷。通过高温掺杂合成改性牡蛎壳粉，并用其对模拟草甘膦废水进行吸附研究。结果表明，改性牡蛎壳粉最优制备条件：煅烧温度900 ℃，过筛粒径120目（125 μm），淀粉用量（淀粉质量/牡蛎壳粉质量）15%，煅烧时间2.5 h，并进行碱处理。XRD表明，制备的改性牡蛎壳粉表面成分为CaCO3和Ca（OH）2；表面分析结果表明，改性牡蛎壳粉比表面积相较未改性前增大21.3%；红外光谱分析表明，制备的改性牡蛎壳粉存在羟基官能团 ...
张伟 +4 more
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