Results 11 to 20 of about 32,507 (170)

Architecting a Robust Yarn‐Like CNT Framework for Structurally Resilient ZnSe Anodes in Potassium–Ion Batteries

Rare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT The development of structurally stable anodes with high capacities and long cycle lives is essential for the development of potassium–ion batteries. Conversion‐type anodes have attracted considerable attention in potassium–ion batteries (PIBs) due to their high theoretical capacities.
Jeong Ho Na, Hyun Jin Kim, Daiha Shin, Hong Geun Oh, Yun Jae Lee, Haeseong Jang, Jiung Cho, Seung‐Keun Park   +7 more
wiley   +1 more source

稀土镨掺杂TiO₂光催化剂的吸附和光催化活性研究

Gongye shui chuli, 2011
通过溶胶-凝胶法成功地制备了一系列Pr3+掺杂的TiO2光催化剂,并通过X射线衍射(XRD)、紫外-可见吸收(DRS)对催化剂进行了表征,结果表明所制催化剂为锐钛矿型,Pr3+的掺杂有利于抑制晶粒生长,提高晶体的热稳定性。DRS光谱证实,Pr3+的掺杂增强了催化剂在可见光区域的吸收能力。吸附实验结果表明,Pr3+的掺杂显著提高了活性黄KE-4RN在TiO2催化剂表面的吸附能力,随掺杂量增加,吸附增强。活性实验结果表明,Pr3+的掺杂显著提高了TiO2的光催化活性,最佳掺杂质量分数为1.5%。
梁春华, 林红卫
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Dual‐Metal Co‐Doping Strategy Enhances the Hydrogen Dissociation and Hydrogen Release Performance of LiBH4 Assisted by Ensemble Learning

Rare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT LiBH4 has drawn significant attention due to its high theoretical hydrogen storage capacity of 18.5 wt%, yet its practical application is hindered by the harsh dehydrogenation conditions. This paper proposes a strategy integrating ensemble learning with density functional theory (EL–DFT) for rapidly screening modified LiBH4 systems that ...
Zishan Luo, Xi Sun, Hang Zhang, Yuhang Zhou, Wenhao Yan, Tao Zhang, Jiawei Li, Hong Cui, Weizhi Tian, Rong Feng, Lingxia Jin, Hongkuan Yuan   +11 more
wiley   +1 more source

SrBi_4-xNd_xTi₄O₁₅铁电陶瓷性能研究

四川大学学报. 自然科学版, 2005
用固相烧结法制备了不同Nd掺杂量的SrBi4-xNdxTi4O15(SBNT-x,x=0.00～1.00)铁电陶瓷.X射线衍射谱显示Nd掺杂未改变SrBi4Ti4O15(SBTi)的晶体结构.铁电测量表明,适量的Nd掺杂使SBTi的剩余极化(2Pr)显著增加.当x=0.18时,2Pr达到极大值,为25.8μC/cm2,和未掺杂相比,增长约56%.样品的矫顽场在x=0.00到0.18之间几乎不变,而在更大掺杂量下,随掺杂量的增加而逐步减小.掺杂引起材料中点缺陷浓度降低和晶格畸变减小 ...
王伟, 朱骏, 毛翔宇, 陈小兵
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Dual‐Phosphidation‐Engineered Ni/NiO Heterojunction Nanoflowers With Synergistic Surface PO43− Group and P Doping Sites for High‐Performance and Low Temperature (−40°C) Supercapacitors

Rare Metals, Volume 45, Issue 6, June 2026.
ABSTRACT Nickel oxide (NiO)‐based electrodes with high theoretical specific capacitance can effectively increase the energy density of supercapacitors—the key factor limiting their practical deployment. However, several issues still restrict the production of advanced NiO‐based electrodes.
Ya‐Min Feng, Ran Liu, Guang‐Lei Zhang, Hu‐Cheng Zhou, Hai‐Neng Bai, Xiao‐Di Du, Jun Li, Jian Li, Wei‐Feng Liu, Jin‐Ping Liu, Jun‐Ling Guo   +10 more
wiley   +1 more source

Nb掺杂SrBi₄Ti₄O₁₅陶瓷的铁电介电性能

四川大学学报. 自然科学版, 2005
用传统的固相烧结工艺,制备了铌掺杂SrBi4Ti4O15（SBTi）铁电陶瓷SrBi4-x/3Ti4-xNbxO15（SBTN-x）,Nb掺杂量x=0.00,0.003,0.012,0.03和0.06.X射线衍射的结果表明,所有样品均为单一的层状钙钛矿结构相,Nb掺杂未改变SBTi的晶体结构.铁电测量结果表明,Nb掺杂使SBTi的铁电性能得到较大改善.随掺杂量x的增加,样品的剩余极化（2Pr）呈现出先增大,后减小的规律.在x=0.03时,2Pr达到最大值24.7μC/cm2 ...
金灿, 朱骏, 陈小兵
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f–f Transition in Er(OH)3 Promotes Photosynthesis of H2O2 Coupling With Oxidation of Benzylamine Over Sodium Poly(heptazine imides)

Rare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT f–f electronic transitions of rare‐earth elements typically exhibit unique physicochemical properties that benefit the photocatalytic performance of the catalysts containing the elements. Although conventional rare‐earth metal oxides or single‐atom doping in semiconductors have been extensively studied, the construction of heterojunction ...
Yang‐Sen Xu, Liyi Tang, Yu‐Xiang Yu, Yunxiao Zhang, Xiao Yan, Yangke Long, Wei‐De Zhang   +6 more
wiley   +1 more source

多种光源下氮掺杂TiO₂光催化降解染料废水的研究

Gongye shui chuli, 2010
以尿素为氮源,采用溶胶-凝胶法制备了氮掺杂纳米TiO2粉末,以甲基橙溶液为模拟染料废水,分别在可见光、模拟太阳光和紫外光条件下,研究了氮掺杂纳米TiO2光催化降解染料废水的性能。结果表明:氮掺杂可以提高TiO2的可见光催化活性;氮含量和煅烧温度对氮掺杂TiO2光催化活性影响较大,n(N)∶n(Ti)为10%且经500℃煅烧的氮掺杂TiO2在可见光和模拟太阳光下均具有最佳的光催化活性;然而在紫外光下,氮掺杂TiO2的光催化活性低于未掺杂的TiO2样品。
石建稳, 陈少华, 王淑梅, 叶志隆   +3 more
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Metal‐Doped Carbon‐Based Nanomaterials: Photothermal Mechanism Innovation and Precision Therapy Advancement in Antibacterial and Antitumor Applications

Rare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Metal‐doped carbon‐based nanomaterials (M‐CNM) play a strategically significant role in next‐generation precision antibacterial and antitumor therapies, as they integrate synergistic photothermal ablation, catalytic reactive oxygen species (ROS) generation, and multimodal imaging capabilities. However, their clinical translation is hindered by
Pengxiang Liu, Juan Du, Guoqiang Ma, Zheng Li, Aibing Chen, Senlin Hou   +5 more
wiley   +1 more source

钆、硫共掺杂TiO₂光催化处理染料废水的研究

Gongye shui chuli, 2015
以钛酸四正丁酯、硝酸钆、硫脲为原料, 采用溶胶-凝胶法制备了Gd、S掺杂TiO2光催化剂。实验结果表明:少量Gd的掺杂能提高TiO2的光催化效率, 掺杂过多Gd对光催化剂有抑制作用。当煅烧温度为650 ℃, 钆、硫的掺杂比分别为0.2%、1.0%时, TiO2光催化剂效果最好, 而且其光响应范围也明显拓展。XRD表征表明, 当TiO2锐钛矿晶型中掺杂少量金红石相时, Gd、S共掺杂TiO2光催化性能最好。
刘杰, 汪恂, 朱雷, 肖锋
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