Nanoscience & Nanotechnology

Review Nanoscience & Nanotechnology

Recent progress in cathode catalyst for nonaqueous lithium oxygen batteries: a review

Congcong Dang, Qin Mu, Xiubo Xie, Xueqin Sun, Xiaoyang Yang, Yuping Zhang, Srihari Maganti, Mina Huang, Qinglong Jiang, Ilwoo Seok, Wei Du, Chuanxin Hou

Summary: Lithium-oxygen (Li-O-2) battery is a potential candidate for next-generation commercial batteries due to its high theoretical capacity and energy density. However, its practical electrochemical performance faces obstacles such as low discharge capacity, poor rate capability, high overpotential, and unstable cycle lifespan. This review summarizes the recent advances in the design and preparation of cathode materials for Li-O-2 batteries. It discusses the reaction mechanism, component design, structure-property relationship, and attempts to improve the electrochemical properties of Li-O-2 batteries electrode materials.

ADVANCED COMPOSITES AND HYBRID MATERIALS (2022)

Article Chemistry, Multidisciplinary

Nanoframes of Co3O4-Mo2N Heterointerfaces Enable High-Performance Bifunctionality toward Both Electrocatalytic HER and OER

Tingting Wang, Pengyan Wang, Wenjie Zang, Xin Li, Ding Chen, Zongkui Kou, Shichun Mu, John Wang

Summary: A hollow nanoframing strategy was devised for interconnected Co3O4-Mo2N heterostructures, leading to enhanced bifunctional catalytic activities due to the optimized heterointerface with strong electron interaction and favorable H2O/H* adsorption energies.

ADVANCED FUNCTIONAL MATERIALS (2022)

Article Chemistry, Physical

Recent progress and future perspective on practical silicon anode-based lithium ion batteries

Lin Sun, Yanxiu Liu, Rong Shao, Jun Wu, Ruiyu Jiang, Zhong Jin

Summary: This article provides a brief overview of the development history of silicon anode lithium-ion batteries and highlights the challenges and countermeasures in practical applications. Solutions are proposed for structure regulation, interface modulation, and novel binder and electrolyte design, with a focus on future research on full cell performances and all solid-state batteries.

ENERGY STORAGE MATERIALS (2022)

Article Chemistry, Multidisciplinary

High-Stretchability, Ultralow-Hysteresis ConductingPolymer Hydrogel Strain Sensors for Soft Machines

Zequn Shen, Zhilin Zhang, Ningbin Zhang, Jinhao Li, Peiwei Zhou, Faqi Hu, Yu Rong, Baoyang Lu, Guoying Gu

Summary: This research presents a conducting polymer hydrogel strain sensor with high strain and low hysteresis, achieved through a unique microphase semiseparated network design and facile fabrication methods. The strain sensor demonstrates superior performances in terms of stretchability, linearity, cyclic stability, and robustness against mechanical twisting and pressing. The integration and application of the strain sensor with electronic skins show its potentials in various fields such as physiological signal measurement, gesture recognition, and industrial robot control.

ADVANCED MATERIALS (2022)

Review Chemistry, Physical

Emerging low-nuclearity supported metal catalysts with atomic level precision for efficient heterogeneous catalysis

Xiaobo Zheng, Beibei Li, Qishun Wang, Dingsheng Wang, Yadong Li

Summary: This review comprehensively outlines the recent exciting advances on novel atomically dispersed metal catalysts (NADMCs) with emphasis on understanding the synergistic interactions among multiple metal atoms and underlying structure-performance relationships. It discusses the synthetic approaches, characterizations, and energy-related applications of NADMCs, and provides insights into the remaining challenges and opportunities for their development.

NANO RESEARCH (2022)

Review Nanoscience & Nanotechnology

Synthesis and alignment of liquid crystalline elastomers

Katie M. Herbert, Hayden E. Fowler, Joselle M. McCracken, Kyle R. Schlafmann, Jeremy A. Koch, Timothy J. White

Summary: Liquid crystalline elastomers (LCEs) combine the elastic properties of rubber with the anisotropic properties of liquid crystals, allowing for multifunctionality and responsivity through local orientation patterning. Advances in materials chemistry and processing have paved the way for the functional integration of LCEs in various fields.

NATURE REVIEWS MATERIALS (2022)

Article Nanoscience & Nanotechnology

Size-Dependent Oxidation-Induced Phase Engineering for MOFs Derivatives Via Spatial Confinement Strategy Toward Enhanced Microwave Absorption

Hanxiao Xu, Guozheng Zhang, Yi Wang, Mingqiang Ning, Bo Ouyang, Yang Zhao, Ying Huang, Panbo Liu

Summary: A spatial confined growth strategy encapsulating small-size MOFs derivatives into hollow carbon nanocages was proposed, showing significant spatial confinement effect on the crystal size and dielectric polarization. The phase hybridization induced by size-dependent oxidation motion led to satisfying microwave attenuation, with optimal reflection loss and effective bandwidth achieved. The strategy offers a versatile methodology for manipulating the size of MOFs derivatives and optimizing dielectric polarization and microwave attenuation.

NANO-MICRO LETTERS (2022)

Review Chemistry, Multidisciplinary

Surface Modification of 2D Photocatalysts for Solar Energy Conversion

Chengyang Feng, Zhi-Peng Wu, Kuo-Wei Huang, Jinhua Ye, Huabin Zhang

Summary: This article introduces the research progress in 2D photocatalysts based on varied compositions and functions, as well as specific surface modification strategies. The fundamental principles focusing on light harvesting, charge separation, and molecular adsorption/activation in the 2D-material-based photocatalytic system are systematically explored. Examples of various photocatalytic energy-conversion systems using 2D materials are described. Finally, the challenges and possible solutions for developing these 2D materials are discussed.

ADVANCED MATERIALS (2022)

Article Chemistry, Multidisciplinary

Ambient Ammonia Synthesis via Electrochemical Reduction of Nitrate Enabled by NiCo2O4 Nanowire Array

Qian Liu, Lisi Xie, Jie Liang, Yuchun Ren, Yuanyuan Wang, Longcheng Zhang, Luchao Yue, Tingshuai Li, Yongsong Luo, Na Li, Bo Tang, Yang Liu, Shuyan Gao, Abdulmohsen Ali Alshehri, Imran Shakir, Philips O. Agboola, Qingquan Kong, Qingyuan Wang, Dongwei Ma, Xuping Sun

Summary: NiCo2O4 nanowire array on carbon cloth (NiCo2O4/CC) is proposed as a highly active electrocatalyst for ambient nitrate (NO3-) reduction to ammonia (NH3). It achieves a high Faradic efficiency of 99.0% and a large NH3 yield up to 973.2 mu mol h(-1) cm(-2). The superior catalytic activity comes from its half-metal feature and optimized adsorption energy due to the existence of Ni in the crystal structure.

SMALL (2022)

Review Nanoscience & Nanotechnology

End-to-end design of wearable sensors

H. Ceren Ates, Peter Q. Nguyen, Laura Gonzalez-Macia, Eden Morales-Narvaez, Firat Guder, James J. Collins, Can Dincer

Summary: Wearable sensors that access biophysical and biochemical information can monitor physiological state and aid in diagnosis. These devices can be worn in various forms and have shown potential in early detection and monitoring of diseases. Future wearable sensors are expected to enable multimodal and real-time continuous measurement.

NATURE REVIEWS MATERIALS (2022)

Article Chemistry, Physical

Magnetic-dielectric synergy and interfacial engineering to design yolk-shell structured CoNi@void@C and CoNi@void@C@MoS2 nanocomposites with tunable and strong wideband microwave absorption

Chen Li, Xiaosi Qi, Xiu Gong, Qiong Peng, Yanli Chen, Ren Xie, Wei Zhong

Summary: In this paper, yolk-shell structured magnetic multicomponent nanocomposites (MCNCs) were produced and their outstanding electromagnetic wave absorption performances (EMWAPs) were demonstrated. The as-prepared materials exhibited excellent absorption capabilities, broad absorption bandwidth, and thin matching thicknesses due to the unique structures and the synergistic effect between dielectric and magnetic loss. Furthermore, the materials maintained their specific structure even after thermal and hydrothermal processes, and MCNCs with different MoS2 contents could be synthesized by controlling the hydrothermal temperature.

NANO RESEARCH (2022)

Review Nanoscience & Nanotechnology

Recent advances in radio-frequency negative dielectric metamaterials by designing heterogeneous composites

Peitao Xie, Zhicheng Shi, Mei Feng, Kai Sun, Yao Liu, Kelan Yan, Chunzhao Liu, Tarek A. A. Moussa, Meina Huang, Shuwei Meng, Gemeng Liang, Hua Hou, Runhua Fan, Zhanhu Guo

Summary: Dielectric constant is a physical parameter that determines the response of materials to electromagnetic waves or electrical field. Negative dielectric property, a key for constructing metamaterials, has unique electromagnetic properties. Recent advances have demonstrated the feasibility of achieving negative dielectric property in heterogeneous composites.

ADVANCED COMPOSITES AND HYBRID MATERIALS (2022)

Article Chemistry, Multidisciplinary

Atomic Fe-N4/C in Flexible Carbon Fiber Membrane as Binder-Free Air Cathode for Zn-Air Batteries with Stable Cycling over 1000 h

Leping Yang, Xu Zhang, Lingxiao Yu, Jianhua Hou, Zhen Zhou, Ruitao Lv

Summary: In this study, a Fe-N-4/C catalyst immobilized on a carbon fiber membrane was synthesized, showing excellent catalytic activity for oxygen reduction and evolution reactions through sulfur doping to modulate atomic configurations. The catalyst demonstrated superior electrochemical performance and cycling stability, outperforming commercial Pt/C and most reported M-N-x/C catalysts. The findings offer promising prospects for flexible electronic device applications.

ADVANCED MATERIALS (2022)

Article Chemistry, Multidisciplinary

Biomimetic Nanoerythrosome-Coated Aptamer-DNA Tetrahedron/Maytansine Conjugates: pH-Responsive and Targeted Cytotoxicity for HER2-Positive Breast Cancer

Wenjuan Ma, Yuting Yang, Jianwei Zhu, Weiqiang Jia, Tao Zhang, Zhiqiang Liu, Xingyu Chen, Yunfeng Lin

Summary: DNA materials have been used as nanocarriers for targeted cancer therapy, but their short half-life and low bioavailability hinder their clinical translation. This study developed a HER2-targeted DNA-aptamer-modified DNA tetrahedron/DM1 conjugate, and applied a biomimetic camouflage to enhance drug delivery and tumor-stimulated drug release. The hybrid erythrosome-based nanoparticles exhibited superior inhibition of HER2-positive cancer.

ADVANCED MATERIALS (2022)

Article Nanoscience & Nanotechnology

Flexible polystyrene/graphene composites with epsilon-near-zero properties

Zheng Zhang, Mingxiang Liu, Mohamed M. Ibrahim, Haikun Wu, Yan Wu, Yang Li, Gaber A. M. Mersal, Islam H. El Azab, Salah M. El-Bahy, Mina Huang, Yunxiao Jiang, Gemeng Liang, Peitao Xie, Chunzhao Liu

Summary: This work focuses on the fabrication and characterization of flexible polystyrene/graphene (PS/GR) composites with epsilon-near-zero (ENZ) properties at radio frequency. The addition of graphene nanosheets in PS matrix led to the formation of a continuous conductive network, resulting in the observation of ENZ behavior at around 920 kHz. This research demonstrates the potential of flexible PS/GR composites in applications such as invisibility cloaks, drug delivery, and soft robotics.

ADVANCED COMPOSITES AND HYBRID MATERIALS (2022)

Article Nanoscience & Nanotechnology

Dual-coupling-guided epitaxial growth of wafer-scale single-crystal WS2 monolayer on vicinal a-plane sapphire

Jinhuan Wang, Xiaozhi Xu, Ting Cheng, Lehua Gu, Ruixi Qiao, Zhihua Liang, Dongdong Ding, Hao Hong, Peiming Zheng, Zhibin Zhang, Zhihong Zhang, Shuai Zhang, Guoliang Cui, Chao Chang, Chen Huang, Jiajie Qi, Jing Liang, Can Liu, Yonggang Zuo, Guodong Xue, Xinjie Fang, Jinpeng Tian, Muhong Wu, Yi Guo, Zhixin Yao, Qingze Jiao, Lei Liu, Peng Gao, Qunyang Li, Rong Yang, Guangyu Zhang, Zhilie Tang, Dapeng Yu, Enge Wang, Jianming Lu, Yun Zhao, Shiwei Wu, Feng Ding, Kaihui Liu

Summary: Epitaxial growth of two-inch single-crystal WS2 monolayer films on vicinal a-plane sapphire surfaces has been achieved, driven by a dual-coupling-guided mechanism resulting in unidirectional alignment of WS2 islands. The high quality of WS2 monolayers is evidenced by a photoluminescent circular helicity of about 55%, comparable to exfoliated WS2 flakes. The findings offer the opportunity to boost the production of wafer-scale single crystals of various two-dimensional materials on insulators for applications in integrated devices.

NATURE NANOTECHNOLOGY (2022)

Review Chemistry, Multidisciplinary

Development of Conductive Hydrogels for Fabricating Flexible Strain Sensors

Gang Li, Chenglong Li, Guodong Li, Dehai Yu, Zhaoping Song, Huili Wang, Xiaona Liu, Hong Liu, Wenxia Liu

Summary: Conductive hydrogels, incorporating various conductive materials into polymeric network hydrogels, have been developed for strain sensors with unique properties such as electrical conductivity, mechanical properties, self-healing, and anti-freezing properties. These properties allow conductive hydrogel-based strain sensors to exhibit excellent performance in identifying external stimuli and detecting human body movement, even at subzero temperatures.

SMALL (2022)

Article Chemistry, Multidisciplinary

Over 21% Efficiency Stable 2D Perovskite Solar Cells

Ming Shao, Tong Bie, Lvpeng Yang, Yerun Gao, Xing Jin, Feng He, Nan Zheng, Yu Yu, Xinliang Zhang

Summary: This study fabricated 2D perovskite solar cells incorporating FA, MA, and FA/MA, resulting in significantly enhanced light absorption and device stability. The introduction of FA cations increased the 3D-like phase relative to 2D phases and effectively suppressed the formation of the yellow delta phase.

ADVANCED MATERIALS (2022)

Article Chemistry, Multidisciplinary

A Multifunctional Flexible Composite Film with Excellent Multi-Source Driven Thermal Management, Electromagnetic Interference Shielding, and Fire Safety Performance, Inspired by a Brick-Mortar Sandwich Structure

Shang Gong, Xinxin Sheng, Xiaolong Li, Mengjie Sheng, Hao Wu, Xiang Lu, Jinping Qu

Summary: This paper presents a method for fabricating a multifunctional composite film with excellent thermal management capability, EMI shielding effectiveness, and fire safety performance. The film possesses multiple-source driven thermal management capability and high EMI shielding effectiveness, along with good flexibility and high enthalpy. The outstanding performance of the film offers broad application prospects in wearable products.

ADVANCED FUNCTIONAL MATERIALS (2022)

Article Nanoscience & Nanotechnology

Hierarchically Multifunctional Polyimide Composite Films with Strongly Enhanced Thermal Conductivity

Yongqiang Guo, Hua Qiu, Kunpeng Ruan, Yali Zhang, Junwei Gu

Summary: A hierarchically multifunctional polyimide composite film with high thermal conductivity and electromagnetic interference (EMI) shielding has been successfully fabricated through hierarchical design and assembly strategy.

NANO-MICRO LETTERS (2022)