Results 11 to 20 of about 315,615 (149)

石墨烯的制备及其在水处理中的应用研究进展

Gongye shui chuli, 2017
石墨烯是一种由碳原子以sp2杂化轨道形成的只有一个碳原子厚度的二维碳质新材料，优异的特性使其在很多领域有着广泛应用。简述了石墨烯的特性，介绍了石墨烯及其氧化物的制备方法，详细阐述了石墨烯及其氧化物的复合材料在水处理领域的应用。石墨烯及其氧化物加入到其他材料中可提升其他材料的性能，但它们对水中有机物及重金属离子吸附机理还有待进一步研究。
唐朝春, 段先月, 叶鑫, 陈惠民, 吴庆庆   +4 more
doaj   +2 more sources

Synergistic Enhancement of Mechanical and Electrical Properties and Corrosion Resistance of Graphene‐Copper Composites by Accumulative Roll Bonding

Rare Metals, Volume 45, Issue 7, July 2026.
ABSTRACT Graphene‐reinforced copper (Gr/Cu) composites have attracted considerable attention because of their potential to achieve a synergistic enhancement of strength, electrical conductivity, and corrosion resistance; however, the poor dispersion of graphene in the Cu matrix remains a key limitation for their further development.
Wenjing Zhang, Xujun Mi, Xue Feng, Wanyu Wang, Qingsong Mei, Lue Huang, Haifeng Li, Qixu Liu, Qingyou Sun, Jing Feng, Zengde Li, Yizhi Zhao, Haofeng Xie   +12 more
wiley   +1 more source

Polarization Loss Enhancement Induced by Interfacial Contact Regulation Strategy to Develop Nickel Silicate/Reduced Graphene Oxide for Microwave Absorption and Corrosion Resistance

Rare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT Interface polarization enhancement and impedance matching optimization are the keys to improving the comprehensive performance of microwave absorbing materials (MAMs). Herein, a green synthesis strategy integrating sacrificial template self‐etching, hydrothermal reaction, and annealing treatment is proposed to successfully fabricate urchin ...
Zhenzhen Tian, Tianming Jia, Xucai Kan, Beibei Zhan, Junfei Ding, Yunpeng Qu, Xiu Gong, Yanli Chen, Xiaosi Qi   +8 more
wiley   +1 more source

Synergistic Engineering of Amorphous Cathode and Hybrid Electrolyte Toward Stable High‐Voltage Aqueous Zn‐Ion Batteries

Rare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT The development of high‐voltage aqueous zinc‐ion batteries (AZIBs) is primarily hindered by the lack of suitable cathode materials and electrolytes that can work in broad voltage windows. Herein, we propose a synergistic strategy that concurrently addresses these challenges through the integration of an amorphous vanadium oxyphosphate/graphene
Xianyu Liu, Yihong Huang, Rui Xu, Enjie Hu, Xiangcheng Dong, Xinyu Wang, Hongmei Cao, Baojuan Xi   +7 more
wiley   +1 more source

Edge‐Fluorinated Flower‐Like Porous Graphene Microspheres With Enlarged Interlayer Spacing for High‐Performance Potassium‐Ion Batteries

Rare Metals, Volume 45, Issue 4, April 2026.
ABSTRACT The utilization of carbonaceous anodes in electrochemical systems, particularly potassium‐ion batteries (PIBs), remains hindered by sluggish kinetics and modest capacities, which are caused by the intrinsic ion storage mechanisms and constrained interlayer spacings.
HaiSong Chen, Wenguang Tan, Qingfeng Zhang, Shuhong Xie, Zhenya Luo, Weixin Lei, Junan Pan, Xiaoping Ouyang   +7 more
wiley   +1 more source

Electronegativity‐Driven Frontier Orbital Engineering in B‐Ti Diatomic Synergy Enables Selective Li2C2O4 Conversion in Li‐CO2 Batteries

Rare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT As a promising alternative to sluggish Li2CO3‐based Li‐CO2 electrochemistry, Li2C2O4 offers a favorable 2e− discharge pathway, yet its selective formation and reversible decomposition remain debated. Herein, we propose a nonmetal‐metal synergistic catalyst—B‐Ti coregulated layered transition metal boride Ti18B18O9/graphene (B‐Ti/TiBOG)—to ...
Qiong Peng, Tingting Luo, Man Zhu, Zixuan Tian, Zeyou Zhou, Yanli Chen, Yunpeng Qu, Xiaosi Qi, Zhimei Sun   +8 more
wiley   +1 more source

石墨烯气凝胶/MnO₂复合材料强化电容去离子性能研究

Gongye shui chuli, 2020
选用石墨烯气凝胶（GA）作为载体，负载MnO2纳米颗粒，构建新型石墨烯气凝胶-MnO2复合材料（MnGA），并制备电容电极，研究复合材料的电容去离子性能。结果表明，MnO2在石墨烯片层上可形成一维线状结构，减弱石墨烯片层间的堆叠效应，提升材料电容，从而提高了电极的脱盐性能，最大电容脱盐量达到25.78 mg/g；NaCl溶液的初始浓度、供电电压和进水流速均会对电容脱盐量产生影响。
韩登程, 孙雪菲, 王曙光
doaj   +2 more sources

Bottom‐Up Strategy Toward 3D Porous MXene/MoS2 Nanosheets/Graphene Nanoarchitectures as Highly‐Efficient Hydrogen Evolution Electrocatalysts

Rare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT As a core component in the electrochemical water splitting system, the cathode catalyst is capable of boosting the kinetics of the hydrogen evolution reaction (HER), while the scarcity and expenditure of current noble metal‐based electrocatalysts seriously restrict the large‐scale commercial development of hydrogen manufacturing devices. Here,
Haiyan He, Yuxian Chen, Chenyu Xu, Taiji Gan, Chi Ge, Quanguo Jiang, Jian Zhang, Lei Lei, Huajie Huang   +8 more
wiley   +1 more source

Melting Preparation for Tungsten‐Doped Graphene/Copper Composites

Rare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Melting production plays a pivotal role in the modern copper industry. However, applying this process to fabricate nanocarbon (e.g., graphene, carbon nanotubes)‐reinforced copper matrix composites has remained a long‐standing challenge for nearly 2 decades.
Yunzhong Wu, Changsheng Xing, Tong Zhang, Jiaxu Shuang, Deyu Zhang, Jie Li, Miao Wang, Jie Sheng, Lidong Wang, Weidong Fei   +9 more
wiley   +1 more source

H₂O分子在石墨烯扶手型边缘吸附的研究

四川大学学报. 自然科学版, 2012
类似石墨表面,石墨烯可以吸附和脱附各种原子和分子,石墨烯比石墨具有更大表面积,因此,石墨烯的表面性能被广泛关注.然而较少被关注的是石墨烯边缘C原子的性能.石墨烯边缘C原子由于存在未配对的电子,因此具有更强的反应活性.本文采用了Self-Consistent-Charge Density Functional Tight Binding（SCC-DFTB）方法对H2O分子在石墨烯扶手型边缘的吸附现象进行了研究.研究发现,石墨烯边缘的峰位C原子具有很好的吸附性,吸附能大约为-0.109～-0.768 eV ...
刘健康, 何国柱
doaj