首页 > 最新文献

Nano Materials Science最新文献

英文 中文
Recent advances of photolithography patterning of quantum dots for micro-display applications 用于微型显示器的量子点光刻图案化的最新进展
Pub Date : 2024-04-01 DOI: 10.1016/j.nanoms.2024.03.005
Xuemin Kong, X. Fan, Yuhui Wang, Yunshu Luo, Yihang Chen, Tingzhu Wu, Zhong Chen, Yue Lin, Shuli Wang
{"title":"Recent advances of photolithography patterning of quantum dots for micro-display applications","authors":"Xuemin Kong, X. Fan, Yuhui Wang, Yunshu Luo, Yihang Chen, Tingzhu Wu, Zhong Chen, Yue Lin, Shuli Wang","doi":"10.1016/j.nanoms.2024.03.005","DOIUrl":"https://doi.org/10.1016/j.nanoms.2024.03.005","url":null,"abstract":"","PeriodicalId":501090,"journal":{"name":"Nano Materials Science","volume":"130 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140790514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The importance of properly correcting the electric double layer effect in unravelling the intrinsic kinetics of electrode reactions 正确修正电双层效应对揭示电极反应内在动力学的重要性
Pub Date : 2024-04-01 DOI: 10.1016/j.nanoms.2024.03.008
Bing-Yu Liu, Er-fei Zhen, Wei Chen, Lu-Lu Zhang, Jun Cai, Yanxin Chen
{"title":"The importance of properly correcting the electric double layer effect in unravelling the intrinsic kinetics of electrode reactions","authors":"Bing-Yu Liu, Er-fei Zhen, Wei Chen, Lu-Lu Zhang, Jun Cai, Yanxin Chen","doi":"10.1016/j.nanoms.2024.03.008","DOIUrl":"https://doi.org/10.1016/j.nanoms.2024.03.008","url":null,"abstract":"","PeriodicalId":501090,"journal":{"name":"Nano Materials Science","volume":"753 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140772930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Advances and prospects in the development of GdVO4-based photocatalysts for water pollutants removal activity: A review 基于 GdVO4 的光催化剂在开发水污染物去除活性方面的进展和前景:综述
Pub Date : 2024-04-01 DOI: 10.1016/j.nanoms.2024.04.001
S. Roopan, T. Chellapandi, Roshan Mohammed Shebeer, E. Akhil, Jerry D. Alappat, Nived Rajeshkumar Nair, Manasa Madhusoodanan, D. Chitra
{"title":"Advances and prospects in the development of GdVO4-based photocatalysts for water pollutants removal activity: A review","authors":"S. Roopan, T. Chellapandi, Roshan Mohammed Shebeer, E. Akhil, Jerry D. Alappat, Nived Rajeshkumar Nair, Manasa Madhusoodanan, D. Chitra","doi":"10.1016/j.nanoms.2024.04.001","DOIUrl":"https://doi.org/10.1016/j.nanoms.2024.04.001","url":null,"abstract":"","PeriodicalId":501090,"journal":{"name":"Nano Materials Science","volume":"22 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140768198","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of densification process on mechanical enhancement of graphene laminates 致密化工艺对石墨烯层压板机械性能提升的影响
Pub Date : 2024-04-01 DOI: 10.1016/j.nanoms.2024.03.001
Yue Zhu, Yalong Liao, Meng Wang, Jingxin Dai, Chaoshuai Lei, Xiaobo Liu, Pengyu Mu, Wenjing Li, Hao Zhang
{"title":"Effect of densification process on mechanical enhancement of graphene laminates","authors":"Yue Zhu, Yalong Liao, Meng Wang, Jingxin Dai, Chaoshuai Lei, Xiaobo Liu, Pengyu Mu, Wenjing Li, Hao Zhang","doi":"10.1016/j.nanoms.2024.03.001","DOIUrl":"https://doi.org/10.1016/j.nanoms.2024.03.001","url":null,"abstract":"","PeriodicalId":501090,"journal":{"name":"Nano Materials Science","volume":"48 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140760290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ni–Zn bimetal-organic framework nanoprobes reinforced polymeric coating to achieve dual-responsive warning of coating damage and interfacial corrosion 镍锌双金属有机框架纳米探针加固聚合物涂层,实现涂层损伤和界面腐蚀双重响应预警
Pub Date : 2024-04-01 DOI: 10.1016/j.nanoms.2024.03.009
Dezhi Jiao, Chengbao Liu, Yujie Qiang, Shuoqi Li, Cong Sun, Peimin Hou, Lanyue Cui, Rong-chang Zeng
{"title":"Ni–Zn bimetal-organic framework nanoprobes reinforced polymeric coating to achieve dual-responsive warning of coating damage and interfacial corrosion","authors":"Dezhi Jiao, Chengbao Liu, Yujie Qiang, Shuoqi Li, Cong Sun, Peimin Hou, Lanyue Cui, Rong-chang Zeng","doi":"10.1016/j.nanoms.2024.03.009","DOIUrl":"https://doi.org/10.1016/j.nanoms.2024.03.009","url":null,"abstract":"","PeriodicalId":501090,"journal":{"name":"Nano Materials Science","volume":"41 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140771024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recent advances of graphitic carbon nitride (g-C3N4) based materials for photocatalytic applications: A review 基于石墨氮化碳(g-C3N4)的光催化应用材料的最新进展:综述
Pub Date : 2024-04-01 DOI: 10.1016/j.nanoms.2024.04.002
Tengfei Bao, Xuejing Li, Shuming Li, Heng Rao, Xiaoju Men, Ping She, Jun-sheng Qin
{"title":"Recent advances of graphitic carbon nitride (g-C3N4) based materials for photocatalytic applications: A review","authors":"Tengfei Bao, Xuejing Li, Shuming Li, Heng Rao, Xiaoju Men, Ping She, Jun-sheng Qin","doi":"10.1016/j.nanoms.2024.04.002","DOIUrl":"https://doi.org/10.1016/j.nanoms.2024.04.002","url":null,"abstract":"","PeriodicalId":501090,"journal":{"name":"Nano Materials Science","volume":"75 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140759047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evolutionary prediction of novel biphenylene networks as an anode material for lithium and potassium-ion batteries 作为锂离子和钾离子电池负极材料的新型联苯网络的进化预测
Pub Date : 2024-03-18 DOI: 10.1016/j.nanoms.2024.02.008
Adewale Hammed Pasanaje, Nirpendra Singh
The discovery of novel materials with compelling properties is more accessible with the help of advanced computational algorithms. Recent experimental synthesis of the biphenylene network (C) motivated us to discover new BN-doped biphenylene networks (CBN, CBN, and BN) and their applications in Li(K)-ion batteries using an evolutionary algorithm and the first-principles calculations. The thermodynamic, thermal, and mechanical stability calculations and decomposition energy suggest the experimental synthesis of predicted biphenylene networks. Adding BN in the biphenylene networks shows a transition from metal to semimetal to semiconductor. The BN biphenylene network shows an HSE06 band gap of 3.06 ​eV, smaller than -BN. The CBN and CBN biphenylene networks offer Li(K) adsorption energy of −0.56 ​eV (−0.81 ​eV) and −0.14 ​eV (−0.28 ​eV), respectively, with a low diffusion barrier of 178 ​meV (58 ​meV) and 251 ​meV (79 ​meV), and a large diffusion constant of 8.50 ​× ​10 (8.78 ​× ​10) and 5.33 ​× ​10 (4.12 ​× ​10), respectively. The calculated Li(K) theoretical capacity of CBN and CBN biphenylene networks is 940.21 ​mA ​h ​g (899.01 ​mA ​h ​g) and 768.08 ​mA ​h ​g (808.47 ​mA ​h ​g), with a low open circuit voltage of 0.34 ​V (0.23 ​V), and 0.17 ​V (0.13 ​V), resulting in very high energy density of 2576.18 ​mW ​h ​g (2445.31 ​mW ​h ​g) and 2181.35 ​mW ​h ​g (2263.72 ​mW ​h ​g), respectively. Only a slight volume change of 1.6% confirms the robustness of BN-doped carbon-based biphenylene networks. Our findings present novel 2D BN-doped biphenylene networks and a pathway toward their applications in metal-ion batteries.
在先进计算算法的帮助下,更容易发现具有引人注目特性的新型材料。最近联苯网络(C)的实验合成促使我们利用进化算法和第一原理计算发现了新的掺杂 BN 的联苯网络(CBN、CBN 和 BN)及其在锂离子电池中的应用。热力学、热和机械稳定性计算以及分解能表明,可以通过实验合成所预测的联苯网络。在联苯网络中加入 BN 后,会出现从金属到半金属再到半导体的转变。BN 联苯网络的 HSE06 带隙为 3.06 eV,小于 -BN。CBN 和 CBN 联苯网络对 Li(K) 的吸附能分别为 -0.56 eV (-0.81 eV) 和 -0.14 eV (-0.28 eV),扩散势垒分别为 178 meV (58 meV) 和 251 meV (79 meV),扩散常数分别为 8.50 × 10 (8.78 × 10) 和 5.33 × 10 (4.12 × 10)。计算得出的 CBN 和 CBN 联苯网络的 Li(K) 理论容量分别为 940.21 mA h g(899.01 mA h g)和 768.08 mA h g(808.47 mA h g),低开路电压为 0.34 V (0.23 V) 和 0.17 V (0.13 V),能量密度分别高达 2576.18 mW h g (2445.31 mW h g) 和 2181.35 mW h g (2263.72 mW h g)。仅 1.6% 的微小体积变化证实了掺杂 BN 的碳基联苯网络的稳健性。我们的研究结果展示了新型二维 BN 掺杂联苯网络及其在金属离子电池中的应用途径。
{"title":"Evolutionary prediction of novel biphenylene networks as an anode material for lithium and potassium-ion batteries","authors":"Adewale Hammed Pasanaje, Nirpendra Singh","doi":"10.1016/j.nanoms.2024.02.008","DOIUrl":"https://doi.org/10.1016/j.nanoms.2024.02.008","url":null,"abstract":"The discovery of novel materials with compelling properties is more accessible with the help of advanced computational algorithms. Recent experimental synthesis of the biphenylene network (C) motivated us to discover new BN-doped biphenylene networks (CBN, CBN, and BN) and their applications in Li(K)-ion batteries using an evolutionary algorithm and the first-principles calculations. The thermodynamic, thermal, and mechanical stability calculations and decomposition energy suggest the experimental synthesis of predicted biphenylene networks. Adding BN in the biphenylene networks shows a transition from metal to semimetal to semiconductor. The BN biphenylene network shows an HSE06 band gap of 3.06 ​eV, smaller than -BN. The CBN and CBN biphenylene networks offer Li(K) adsorption energy of −0.56 ​eV (−0.81 ​eV) and −0.14 ​eV (−0.28 ​eV), respectively, with a low diffusion barrier of 178 ​meV (58 ​meV) and 251 ​meV (79 ​meV), and a large diffusion constant of 8.50 ​× ​10 (8.78 ​× ​10) and 5.33 ​× ​10 (4.12 ​× ​10), respectively. The calculated Li(K) theoretical capacity of CBN and CBN biphenylene networks is 940.21 ​mA ​h ​g (899.01 ​mA ​h ​g) and 768.08 ​mA ​h ​g (808.47 ​mA ​h ​g), with a low open circuit voltage of 0.34 ​V (0.23 ​V), and 0.17 ​V (0.13 ​V), resulting in very high energy density of 2576.18 ​mW ​h ​g (2445.31 ​mW ​h ​g) and 2181.35 ​mW ​h ​g (2263.72 ​mW ​h ​g), respectively. Only a slight volume change of 1.6% confirms the robustness of BN-doped carbon-based biphenylene networks. Our findings present novel 2D BN-doped biphenylene networks and a pathway toward their applications in metal-ion batteries.","PeriodicalId":501090,"journal":{"name":"Nano Materials Science","volume":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140155123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Impact of functional groups in spacer cations on the properties of PEA-based 2D monolayer halide perovskites 间隔阳离子中的官能团对基于 PEA 的二维单层卤化物包晶特性的影响
Pub Date : 2024-03-16 DOI: 10.1016/j.nanoms.2024.02.005
Chenchen Li, Xian Chen, Tan Jin, Tianmin Wu, Jun Chen, Wei Zhuang
Incorporating low-dimensionalization technologies effectively tackle the challenge of inadequate long-term stability in hybrid halide perovskites, however their wide bandgap and strong quantum well confinement remain substantial obstacle for various optoelectronic applications. Addressing these issues without compromising long-term stability has emerged as a pivotal focus in materials science, in particular exploring the effects of the functional groups within spacer cations. Our simulations reveal that the robust π-π stacking interactions involving PEA and the strong hydrogen bonding interactions between PEA and MX contribute to narrowing the electronic bandgap in 2D monolayer PEAMX (e. g. 2D monolayer PEASnI: 1.34 ​eV) for reasonable visible-light absorption while simultaneously ensuring their favorable long-term stability. Moreover, the delocalized orbitals and relatively high dielectric constants in PEA, attributed to the conjugated benzene ring, has been observed to weaken the potential barrier, exciton binding effect and quantum well confinement in 2D monolayer PEAMX, thus facilitating photogenerated electron-hole separations and out-of-plane carrier transport. The impact of spacer cations on the optoelectronic and transport properties of 2D monolayer perovskites highlights the critical role of meticulously chosen and well-designed spacer cations, especially functional groups, in shaping their photophysical properties and ensuring long-term stability even under extremely operating conditions.
采用低维化技术可以有效地解决混合卤化物包晶石长期稳定性不足的难题,但其宽带隙和强量子阱约束仍然是各种光电应用的巨大障碍。在不影响长期稳定性的前提下解决这些问题已成为材料科学领域的一个重要焦点,特别是探索间隔阳离子内官能团的影响。我们的模拟揭示了 PEA 强大的 π-π 堆叠相互作用以及 PEA 和 MX 之间强大的氢键相互作用有助于缩小二维单层 PEAMX 的电子带隙(例如二维单层 PEASnI:1.34 eV),从而实现合理的可见光吸收,同时确保其良好的长期稳定性。此外,由于共轭苯环的存在,PEA 中的分散轨道和相对较高的介电常数被观察到可以削弱二维单层 PEAMX 中的势垒、激子结合效应和量子阱约束,从而促进光生电子-空穴分离和平面外载流子传输。间隔阳离子对二维单层包晶的光电和传输特性的影响凸显了精心选择和设计的间隔阳离子(尤其是官能团)在塑造其光物理性质和确保其在极端工作条件下的长期稳定性方面的关键作用。
{"title":"Impact of functional groups in spacer cations on the properties of PEA-based 2D monolayer halide perovskites","authors":"Chenchen Li, Xian Chen, Tan Jin, Tianmin Wu, Jun Chen, Wei Zhuang","doi":"10.1016/j.nanoms.2024.02.005","DOIUrl":"https://doi.org/10.1016/j.nanoms.2024.02.005","url":null,"abstract":"Incorporating low-dimensionalization technologies effectively tackle the challenge of inadequate long-term stability in hybrid halide perovskites, however their wide bandgap and strong quantum well confinement remain substantial obstacle for various optoelectronic applications. Addressing these issues without compromising long-term stability has emerged as a pivotal focus in materials science, in particular exploring the effects of the functional groups within spacer cations. Our simulations reveal that the robust π-π stacking interactions involving PEA and the strong hydrogen bonding interactions between PEA and MX contribute to narrowing the electronic bandgap in 2D monolayer PEAMX (e. g. 2D monolayer PEASnI: 1.34 ​eV) for reasonable visible-light absorption while simultaneously ensuring their favorable long-term stability. Moreover, the delocalized orbitals and relatively high dielectric constants in PEA, attributed to the conjugated benzene ring, has been observed to weaken the potential barrier, exciton binding effect and quantum well confinement in 2D monolayer PEAMX, thus facilitating photogenerated electron-hole separations and out-of-plane carrier transport. The impact of spacer cations on the optoelectronic and transport properties of 2D monolayer perovskites highlights the critical role of meticulously chosen and well-designed spacer cations, especially functional groups, in shaping their photophysical properties and ensuring long-term stability even under extremely operating conditions.","PeriodicalId":501090,"journal":{"name":"Nano Materials Science","volume":"91 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140154981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ag anchored mesoporous carbon hollow sphere in Cellulose nanofibers/MXene composite films for high-performance electromagnetic interference shielding 用于高性能电磁干扰屏蔽的纤维素纳米纤维/MXene 复合薄膜中的银锚介孔碳空心球
Pub Date : 2024-03-16 DOI: 10.1016/j.nanoms.2024.02.001
Wenting Tao, Wenqin Shao, Meng Ma, Si Chen, Yanqin Shi, Huiwen He, Yulu Zhu, Xu Wang
The increasingly serious electromagnetic (EM) radiation and related pollution effects have gradually attracted people's attention in the information age. Hence, it's crucial to develop adaptive shielding materials with minimum EM waves (EMW) reflection. In this paper, Ag nanoparticles loaded mesoporous carbon hollow spheres (MCHS@Ag) were synthesized by chemical reduction method, and cellulose nanofibers (CNF)/MXene/MCHS@Ag homogeneous composites were prepared. The total EM interference shielding efficiency (SE) of CNF/MXene/MCHS@Ag composite film was 32.83 ​dB (at 12.4 ​GHz), and the absorption effectiveness (SE) was improved to 26.6 ​dB, which was 63.1% and 195.5% higher than that of CNF/MXene/MCHS composite film. The low dielectric property of MCHS effectively optimized the impedance matching between the composites and air. The hollow porous structure prolonged the transmission path of EMW and increased the absorption loss of the composites. At the same time, Ag nanoparticles located the MCHS were helpful to construct the internal conductive path overcoming the damage of the conductive property caused by the low dielectric of MCHS. This research adopts a straightforward method to construct a lightweight, pliable, and mesoporous composites for EMI shielding, which serves a crucial role in the current era of severe EM pollution.
在信息时代,日益严重的电磁辐射及相关污染效应已逐渐引起人们的关注。因此,开发电磁波(EMW)反射最小的自适应屏蔽材料至关重要。本文采用化学还原法合成了负载Ag纳米颗粒的介孔碳空心球(MCHS@Ag),并制备了纤维素纳米纤维(CNF)/MXene/MCHS@Ag均相复合材料。CNF/MXene/MCHS@Ag复合膜的电磁干扰总屏蔽效率(SE)为32.83 dB(12.4 GHz时),吸收效率(SE)提高到26.6 dB,分别比CNF/MXene/MCHS复合膜提高了63.1%和195.5%。MCHS 的低介电性能有效优化了复合材料与空气之间的阻抗匹配。中空多孔结构延长了电磁波的传输路径,增加了复合材料的吸收损耗。同时,位于 MCHS 中的 Ag 纳米粒子有助于构建内部导电路径,克服了 MCHS 低介电特性对导电性能的破坏。该研究采用一种简单的方法构建了一种轻质、柔韧的介孔复合材料,用于电磁干扰屏蔽,在当前电磁污染严重的时代发挥了重要作用。
{"title":"Ag anchored mesoporous carbon hollow sphere in Cellulose nanofibers/MXene composite films for high-performance electromagnetic interference shielding","authors":"Wenting Tao, Wenqin Shao, Meng Ma, Si Chen, Yanqin Shi, Huiwen He, Yulu Zhu, Xu Wang","doi":"10.1016/j.nanoms.2024.02.001","DOIUrl":"https://doi.org/10.1016/j.nanoms.2024.02.001","url":null,"abstract":"The increasingly serious electromagnetic (EM) radiation and related pollution effects have gradually attracted people's attention in the information age. Hence, it's crucial to develop adaptive shielding materials with minimum EM waves (EMW) reflection. In this paper, Ag nanoparticles loaded mesoporous carbon hollow spheres (MCHS@Ag) were synthesized by chemical reduction method, and cellulose nanofibers (CNF)/MXene/MCHS@Ag homogeneous composites were prepared. The total EM interference shielding efficiency (SE) of CNF/MXene/MCHS@Ag composite film was 32.83 ​dB (at 12.4 ​GHz), and the absorption effectiveness (SE) was improved to 26.6 ​dB, which was 63.1% and 195.5% higher than that of CNF/MXene/MCHS composite film. The low dielectric property of MCHS effectively optimized the impedance matching between the composites and air. The hollow porous structure prolonged the transmission path of EMW and increased the absorption loss of the composites. At the same time, Ag nanoparticles located the MCHS were helpful to construct the internal conductive path overcoming the damage of the conductive property caused by the low dielectric of MCHS. This research adopts a straightforward method to construct a lightweight, pliable, and mesoporous composites for EMI shielding, which serves a crucial role in the current era of severe EM pollution.","PeriodicalId":501090,"journal":{"name":"Nano Materials Science","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140155314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dynamic evolution of copper-based catalysts during CO2 electroreduction 铜基催化剂在二氧化碳电还原过程中的动态演变
Pub Date : 2024-02-05 DOI: 10.1016/j.nanoms.2024.01.007
Zhi-Zheng Wu, Peng-Peng Yang, Min-Rui Gao

The CO2 electroreduction reaction (CO2RR) is a promising approach of using renewable electricity to synthesize fuels and value-added chemicals. At present, Cu is generally considered to be the major monometallic catalyst capable of producing multicarbon products (C2+) with high current densities from the CO2RR, but it still suffers from the low activity and high overpotential. The challenge of sluggish CO2RR kinetics can be overcome by developing efficient Cu-based catalysts, which undergo the dynamic evolution during the reaction process. The dynamic evolution of the Cu-based catalysts taking place under working conditions makes it difficult to study the structure-activity correlation and reaction mechanism present during CO2RR. Recently, a number of important works have observed and revealed the dynamic evolution process of Cu-based catalysts by operando characterization techniques. This aspect, however, remains less summarized and prospected in the CO2RR literature. In this Review, we summarize the dynamic evolution of Cu-based catalysts during the CO2RR from aspects of structure, composition and oxidation state. We highlight the correlations between evolution behaviors and catalytic properties. Then, we discuss the dynamic deactivation process of Cu-based catalysts during CO2RR, including metal impurities contamination and carbon accumulation. In particular, we introduce recent advancements in in situ characterization techniques those are employed to probe the dynamic evolution under operating conditions. We end the Review by outlining the challenges and offering personal perspectives on the future development opportunities in this field.

二氧化碳电还原反应(CO2RR)是利用可再生电力合成燃料和高附加值化学品的一种前景广阔的方法。目前,人们普遍认为铜是能够从 CO2RR 中以高电流密度生产多碳产品(C2+)的主要单金属催化剂,但它仍然存在活性低和过电位高的问题。通过开发在反应过程中发生动态演化的高效铜基催化剂,可以克服 CO2RR 动力学缓慢的难题。由于铜基催化剂在工作条件下会发生动态演化,因此很难研究 CO2RR 反应过程中的结构-活性相关性和反应机理。最近,一些重要研究通过操作表征技术观察并揭示了铜基催化剂的动态演化过程。然而,在 CO2RR 文献中,这方面的总结和探讨仍然较少。在本综述中,我们从结构、组成和氧化态等方面总结了铜基催化剂在 CO2RR 过程中的动态演化过程。我们强调了演化行为与催化特性之间的相关性。然后,我们讨论了铜基催化剂在 CO2RR 过程中的动态失活过程,包括金属杂质污染和积碳。特别是,我们介绍了原位表征技术的最新进展,这些技术可用于探测工作条件下的动态演化。在综述的最后,我们概述了这一领域所面临的挑战,并对未来的发展机遇提出了个人观点。
{"title":"Dynamic evolution of copper-based catalysts during CO2 electroreduction","authors":"Zhi-Zheng Wu, Peng-Peng Yang, Min-Rui Gao","doi":"10.1016/j.nanoms.2024.01.007","DOIUrl":"https://doi.org/10.1016/j.nanoms.2024.01.007","url":null,"abstract":"<p>The CO<sub>2</sub> electroreduction reaction (CO<sub>2</sub>RR) is a promising approach of using renewable electricity to synthesize fuels and value-added chemicals. At present, Cu is generally considered to be the major monometallic catalyst capable of producing multicarbon products (C<sub>2+</sub>) with high current densities from the CO<sub>2</sub>RR, but it still suffers from the low activity and high overpotential. The challenge of sluggish CO<sub>2</sub>RR kinetics can be overcome by developing efficient Cu-based catalysts, which undergo the dynamic evolution during the reaction process. The dynamic evolution of the Cu-based catalysts taking place under working conditions makes it difficult to study the structure-activity correlation and reaction mechanism present during CO<sub>2</sub>RR. Recently, a number of important works have observed and revealed the dynamic evolution process of Cu-based catalysts by operando characterization techniques. This aspect, however, remains less summarized and prospected in the CO<sub>2</sub>RR literature. In this Review, we summarize the dynamic evolution of Cu-based catalysts during the CO<sub>2</sub>RR from aspects of structure, composition and oxidation state. We highlight the correlations between evolution behaviors and catalytic properties. Then, we discuss the dynamic deactivation process of Cu-based catalysts during CO<sub>2</sub>RR, including metal impurities contamination and carbon accumulation. In particular, we introduce recent advancements in in situ characterization techniques those are employed to probe the dynamic evolution under operating conditions. We end the Review by outlining the challenges and offering personal perspectives on the future development opportunities in this field.</p>","PeriodicalId":501090,"journal":{"name":"Nano Materials Science","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139689451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
期刊
Nano Materials Science
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1