Article
Nanoscience & Nanotechnology
Xieao Du, Wenyan Cai, Qi Zhang, Lu Yang, Haiyan He
Summary: In this study, flower-shaped Rh crystal-decorated three-dimensional hybrid aerogels were designed and constructed from graphene and graphitic carbon nitride nanolayers. The optimized Rh/G-CN aerogel showed superior electrochemical performance for methanol electro-oxidation, with large electrochemically active surface area, high forward peak current density, and excellent lifespan compared to traditional Rh particle catalysts on different matrices.
ACS APPLIED NANO MATERIALS
(2021)
Article
Energy & Fuels
Sunil P. Lonkar, Vishnu V. Pillai, Saeed M. Alhassan
Summary: To address the growing concerns over energy and the environment, the design and development of high-performance energy storage and conversion materials is highly desirable. In this study, a scalable and simplistic method was proposed to prepare a 3D MoS3/reduced graphene oxide (RGO) aerogel with excellent electroactive properties. The resulting nanohybrid showed enhanced performance as a supercapacitor electrode and electrocatalyst for hydrogen evolution reaction (HER).
JOURNAL OF ENERGY STORAGE
(2022)
Article
Materials Science, Multidisciplinary
Shixuan Jin, Yiyu Feng, Jichao Jia, Fulai Zhao, Zijie Wu, Peng Long, Feng Li, Huitao Yu, Chi Yang, Qijing Liu, Baocai Zhang, Hao Song, Wei Feng
Summary: Optimizing the structure of electrode materials is an effective strategy for designing high-power microbial fuel cells (MFCs). In this study, a three-dimensional (3D) nitrogen-doped multiwalled carbon nanotube/graphene (N-MWCNT/GA) composite aerogel is synthesized as the anode for MFCs. The N-MWCNT/GA electrode has a macroporous hydrophilic structure and low intrinsic resistance, enabling high-density loading of microbes and facilitating extracellular electron transfer, resulting in high-power output performance of the MFC. This research demonstrates the potential of 3D N-MWCNT/GA anodes for high-power MFCs in different environments by optimizing their chemical and microstructures.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yanan Li, Yang Chen, Jinlong Qin, Jinhao Chen, Yahui Zhao, Yongshuai Xie, Haiyan He, Huajie Huang
Summary: This study reports a facile and cost-effective method to fabricate rhodium nanocrystals supported by three-dimensional porous hybrid networks as platinum-alternative electrocatalysts for DMFC. The resultant hybrid exhibits exceptional catalytic abilities, including a large electrochemically active surface area, high mass activity, strong poison tolerance, and long lifespan.
Article
Chemistry, Physical
Majid Farsadrooh, Hamideh Saravani, Abdollatif Shafaei Douk
Summary: A novel, facile, and fast strategy is introduced for synthesizing a three-dimensional Pd-Ir aerogel. The aerogel exhibits exceptional electro-catalytic activity and durability due to its unique 3D architecture, large porosity, and ultra-low density.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Seyed Mohammad Mostashari, Rahebeh Amiri Dehkharghani, Majid Farsadrooh, Faramarz Afshar-Taromi
Summary: A new and simple method for synthesizing self-supported three-dimensional Pd aerogel utilizing formaldehyde as a reducing agent in an alkaline medium was introduced for the first time. The Pd aerogel exhibited superior electrocatalytic activity and enhanced durability towards ethanol electrooxidation, attributed to its unique morphology and numerous open interconnected pores.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
Xingtao Zhao, Yakun Guo, Zekun Jing, Xue Liu, Ruidong Liu, Ran Tao, Tianyu Cai, Yingjun Li, Yuanlin Zhou, Maobing Shuai
Summary: In this study, formable graphene aerogel hydrogen getters were prepared by integrating alkyne-containing molecules into palladium-loaded three-dimensional layered porous graphene aerogel. The results showed that the Pd-GA/DEB composite materials had a high hydrogen absorption capacity in reducing reactive hydrogen gas.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Siti Hasanah Osman, Siti Kartom Kamarudin, Sahriah Basri, Nabilah A. Karim
Summary: This study aimed to improve the catalytic performance of an anodic catalyst for direct methanol fuel cells. Platinum nanoparticles were coated on graphene aerogel (GA) using hydrothermal, freeze-drying, and microwave reduction methods. The mesoporous structure of GA enhanced mass transfer in the electrode. The electrocatalytic performance of PtRu/GA showed superior stability and higher methanol oxidation activity compared to commercial PtRu/C.
Article
Nanoscience & Nanotechnology
Mohammad Atiqur Rahman, Junya Yagyu, Md. Saidul Islam, Masahiro Fukuda, Sora Wakamatsu, Ryuta Tagawa, Zhiqing Feng, Yoshihiro Sekine, Junya Ohyama, Shinya Hayami
Summary: Graphene oxide (GO)-based materials have been extensively studied as low-cost efficient solid electrolytes for fuel-cell application. However, the limited proton conductivity of GO in the out-of-plane directions and associated lower fuel-cell performance restrict their practical application. In this study, a sulfate ion-intercalated three-dimensional graphene oxide (3DSGO) with exceptionally high out-of-plane proton conductivity and improved fuel-cell performance was demonstrated.
ACS APPLIED NANO MATERIALS
(2023)
Article
Engineering, Environmental
Xiaodong Wu, Chunsheng Ni, Jianwei Man, Xiaodong Shen, Sheng Cui, Xiangbao Chen
Summary: In this study, a novel Pd3Cu aerogel electrocatalyst was synthesized and shown to exhibit excellent ORR, HER, and EOR performance. Density functional theory calculations revealed how the optimized electronic structure accelerated ORR activity.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Analytical
Yan Huang, Ziteng Han, Xia Zhou, Jiaxin Li, Xiangling Gu, Zhongfang Li, Wei Sun, Xueliang Niu
Summary: A facile and novel electrochemical sensing platform using a MoS2 nanoflowers-3D graphene aerogel nanocomposite as a signal amplified material is reported for the determination of quercetin. The method shows high sensitivity and reliability, and is suitable for quercetin determination in tablets and urine samples.
Article
Chemistry, Physical
Wei Ge, Qiulin Ma, Zhong Ai, Wei Wang, Feifei Jia, Shaoxian Song
Summary: The 3D reduced graphene oxide/montmorillonite nanosheet aerogel exhibited enhanced electrochemical performance with high specific capacitance and excellent rate capability. The addition of montmorillonite nanosheets effectively inhibited the restacking of reduced graphene oxide aerogel without significant structural changes.
APPLIED CLAY SCIENCE
(2021)
Article
Engineering, Manufacturing
Haizhou Liu, Ying Xu, Jian-Ping Cao, Dong Han, Qiaowen Yang, Rui Li, Fei Zhao
Summary: The high-performance skin-structured EMI shielding composites were successfully fabricated, showing excellent shielding performance and unique bidirectional differential performance. The total EMI shielding effectiveness and specific performance varied when electromagnetic waves interacted with different sides of the composite material.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2021)
Article
Chemistry, Multidisciplinary
Jun Zhou, Yuying Zheng, Dongyang Chen
Summary: By using a reduction-reaction-induced self-assembly process, a new type of three-dimensional porous aerogel with partially unzipped multiwalled carbon nanotubes inserted into graphene nanosheets was prepared. The aerogels exhibited excellent electrical contact, prevented restacking of graphene nanosheets, and provided large channels for charge transfer, resulting in promising electrode materials for supercapacitor applications.
Article
Materials Science, Ceramics
Jinlong Qin, Huajie Huang, Yongshuai Xie, Shijie Pan, Yang Chen, Lu Yang, Quanguo Jiang, Haiyan He
Summary: A convenient low-temperature approach was reported to fabricate well-dispersed Rh nanocrystals on Ti3C2Tx MXene nanosheets. The ultrathin lamellar MXene structure provides efficient anchoring sites and enables direct electronic interaction, resulting in superior electrocatalytic properties.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Zhihengyu Chen, Gautam D. Stroscio, Jian Liu, Zhiyong Lu, Joseph T. Hupp, Laura Gagliardi, Karena W. Chapman
Summary: In this study, the temperature dependence of the local and long-range structure of metal-organic frameworks (MOFs) based on NU-1000 was investigated using synchrotron X-ray total scattering. It was found that the local distortion of Zr6 nodes was dependent on the stability of the ligands, leading to a negative thermal expansion of the extended framework. A new mechanism for this negative thermal expansion was revealed, which involved an increase in the population of a smaller, distorted node state with increasing temperature. Control of the node distortion allowed for control of the dynamic structure of MOFs.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Zhiyong Lu, Jiaxin Duan, Hao Tan, Liting Du, Xiang Zhao, Rui Wang, Satoshi Kato, Shilong Yang, Joseph T. Hupp
Summary: By adjusting the linker of a typical zirconium-based MOF (NU-1000), a new isomer with blocked c-pores and large mesopores (ISO-NU-1000) was successfully synthesized. ISO-NU-1000 exhibits excellent water stability, high water vapor uptake capacity, and cycle stability, making it a promising candidate for water-vapor-sorption-based applications.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Qiubing Dong, Yuhang Huang, Jingmeng Wan, Zhiyong Lu, Zhaoxu Wang, Cheng Gu, Jingui Duan, Junfeng Bai
Summary: Researchers reported a continuous water nanotube confined in a Cu(10)O(13)(-) based metal-organic framework (MOF) that can selectively adsorb C3H6 over C3H8 with a record-high selectivity of 1570 among all the porous materials. The high selectivity is attributed to the initial expansion and subsequent contraction of the confined water nanotubes caused by C3H6 adsorption rather than C3H8. The water nanotubes can be easily recovered by soaking the MOF in water, ensuring long-term use.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Jian Zhang, Lutao Li, Ming Du, Yan Cui, Yonghua Li, Wei Yan, Huajie Huang, Xing'ao Li, Xinbao Zhu
Summary: Efficient and nonprecious cocatalysts play a crucial role in improving the photocatalytic performance of semiconductors. A novel CoP cocatalyst with single-atom phosphorus vacancies defects (CoP-V-p) is synthesized and coupled with Cd0.5Zn0.5S to build a heterojunction photocatalyst. The nanohybrids show a significantly higher photocatalytic hydrogen production activity compared to the pristine ZCS samples.
Article
Nanoscience & Nanotechnology
Cuizhen Yang, Tingyao Wang, Chengcheng Li, Haiyan He, Dongming Liu, Huajie Huang
Summary: In this study, a facile soft chemistry strategy was employed to synthesize two-dimensional ultrathin PdMo bimetallene tightly coupled with Ti3C2T x MXene nanosheets. The PdMo bimetallene exhibits unsaturated Pd atoms and combines bimetallic alloy and strain effects, while the Ti3C2T x matrix optimizes the electronic structure of PdMo bimetallene and enhances the electrical conductivity. The resulting PdMo/Ti3C2T x x nanoarchitecture demonstrates superior electrocatalytic properties compared to conventional Pd nanoparticle catalysts supported by Ti3C2T x and carbon matrices.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Binfeng Shen, Ying Feng, Yan Wang, Pengyun Sun, Lu Yang, Quanguo Jiang, Haiyan He, Huajie Huang
Summary: A newly-developed nanoarchitecture, LDH/H-Ti3C2Tx, composed of holey MXene nanosheets and ultrathin Ni-Fe double hydroxides, has been successfully synthesized. The unique structure of LDH/H-Ti3C2Tx allows for a sophisticated three-dimensional ion diffusion model, which accelerates the electrochemical hydrogen and oxygen evolution rates. LDH/H-Ti3C2Tx exhibits outstanding performance in terms of low overpotentials, small Tafel plots, and excellent cycling stability, outperforming bare Ni-Fe LDHs and Ti3C2Tx catalysts. This work opens up a new avenue for the growth of active nanomaterials on MXene nanosheets and promotes their applications in energy conversion and storage.
Article
Chemistry, Physical
Lang Luo, Wei Meng, Guojun Wang, Jinlong Qin, Haiyan He, Huajie Huang
Summary: A robust and controllable approach is proposed to construct hybrid nanoarchitectures consisting of nanoflower-shaped MnO2 nanocrystals grown on super-thin Ti3C2Tx MXene nanosheets (MNF/Ti3C2Tx) via a convenient co-precipitation process. The resulting nanoarchitectures exhibit prominent structural merits and superior electrochemical performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Yuefeng Duan, Yuhang Huang, Chongqing Wang, Qian Wang, Kai Ge, Zhiyong Lu, Huijie Wang, Jingui Duan, Junfeng Bai, Wanqin Jin
Summary: Researchers have finely tuned a new family of MOFs with carboxylic pincers to separate ethylene and acetylene efficiently, achieving high selectivity and purity of the products. This work provides a novel approach for designing high-performance MOFs by selectively binding small molecular clusters.
Article
Energy & Fuels
Binfeng Shen, Haitao Yao, Haiyan He, Huajie Huang
Summary: In this study, a bottom-up strategy was successfully employed to anchor ultrasmall Pt nanocrystals onto carbon nanohorn-decorated three-dimensional graphene networks, resulting in Pt/CNH-G catalysts with exceptional performance. These catalysts demonstrated distinctive architectural advantages, including porous frameworks, large surface areas, highly dispersed Pt nanoparticles, and good electron conductivity. The optimized Pt/CNH-G catalyst exhibited outstanding methanol oxidation properties and long-term stability, surpassing conventional Pt catalysts supported by other carbon materials.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2023)
Article
Chemistry, Inorganic & Nuclear
Binfeng Shen, Yujie Wei, Pengyun Sun, Haiyan He, Guobing Ying, Huajie Huang
Summary: A stereo-assembly strategy is developed for the bottom-up construction of ultrasmall Pt immobilized on 3D interweaving B-doped g-C3N4 nanosheet-graphene networks, which exhibit exceptional electrocatalytic methanol oxidation ability.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Binfeng Shen, Yujie Wei, Pengyun Sun, Haiyan He, Guobing Ying, Huajie Huang
Summary: A stereo-assembly strategy is developed for the bottom-up construction of ultrasmall Pt immobilized on 3D interweaving B-doped g-C3N4 nanosheet-graphene networks, which exhibit exceptional electrocatalytic methanol oxidation ability.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Multidisciplinary
Huajie Huang, Di Xiao, Zihan Zhu, Chi Zhang, Lu Yang, Haiyan He, Jungmok You, Quanguo Jiang, Xingtao Xu, Yusuke Yamauchi
Summary: In this study, a novel 2D/2D heterojunction was designed and fabricated by growing ultrathin Pd nanosheets on the surface of MXene. The resulting heterojunction showed exceptional catalytic properties for methanol oxidation, with a large electrochemically active surface area, high mass and specific activities, and a long operating life. Theoretical simulations revealed strong electronic interactions between the Pd nanosheet and MXene, which improved the adsorption energy of the Pd component and reduced its susceptibility to CO poisoning.
