Article
Chemistry, Multidisciplinary
Jiaqi Xu, Mengxiao Zhong, Na Song, Ce Wang, Xiaofeng Lu
Summary: Efficient electrocatalysts for hydrogen generation from water electrolysis, Pt/NiPCNFs, were prepared via a simple route of electrospinning, carbonization, and galvanic replacement reaction. The Pt/Ni-PCNFs catalyst exhibited excellent HER activity with low overpotentials in both acidic and alkaline electrolytes and demonstrated long-term stability. This work has significant prospects in the field of renewable energy.
CHINESE CHEMICAL LETTERS
(2023)
Article
Engineering, Environmental
Zhihui Yao, Yuting Li, Daisong Chen, Yiwen Zhang, Xinghong Bao, Juan Wang, Qin Zhong
Summary: This study presents a feasible method to synthesize materials with well-dispersed β-Fe2O3 clusters in 1D porous carbon nanofibers through electrospinning, impregnation, and pyrolysis processes. The resulting material, β-Fe2O3@CNFs-12, exhibits remarkable ORR performance in alkaline electrolyte, outperforming commercial Pt/C, thanks to its well-designed 1D hierarchical porous structure and accessible β-Fe2O3 clusters embedded in carbon nanofibers.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Mengnan Li, Jing Yu, Qi Liu, Jingyuan Liu, Rongrong Chen, Jiahui Zhu, Rumin Li, Jun Wang
Summary: This study developed a strategy of N-coordination to disperse Fe-N-5 sites on N-doped porous nanofibers as an efficient HER catalyst. The results showed that Fe species existed as dispersed single atoms with strong binding to N atoms, forming the coordination structure of Fe-N-5. Fe SA/PNCNFs-0.1 exhibited superior HER performance and durability in both acidic and alkaline media.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Engineering, Environmental
Peijia Wang, Yaotian Yan, Pengcheng Wang, Zhenyu Ye, Xiaohang Zheng, Wei Cai
Summary: In this study, Pt/CuO nanoclusters loaded on nitrogen-doped porous carbon array were successfully fabricated using MOF as precursor. DFT calculations confirmed the catalytic performance of the Pt/CuO catalyst, showing enhanced charge transfer kinetics. The Pt/CuO catalyst exhibited excellent catalytic performance in alkaline electrolyte for HER.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Xiaojie Chen, Wenqiong Gou, Jiaqi Xu, Ruikai Qi, Siyu Ren, Ce Wang, Wei Chen, Guangtao Yu, Xiaofeng Lu
Summary: In this work, low-loading and ultrasmall Ir nanoparticles are decorated on the surface of Ni/nitrogen-doped carbon nanofibers (NCNFs) through a simple chemical reduction deposition route. The obtained Ni-NCNFs-Ir catalyst exhibits superior hydrogen evolution reaction (HER) activities in both acidic and alkaline solutions. The optimized 0.1NiNCNFs-5Ir catalyst with Ir content of 6.0 wt% exhibits remarkable low overpotentials of 22 and 25 mV at 10 mA cm-2 in 0.5 M H2SO4 and 1 M KOH, respectively, which are better than many other reported Ir- or Ni-based electrocatalysts.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Zhen Hu, Jian Chen, Peiyao Pan, Chao Liu, Jingming Zeng, Yang Ou, Xiaopeng Qi, Tongxiang Liang
Summary: Exploration for an earth-rich and competent electrocatalyst for the hydrogen evolution reaction (HER) is a significant and challenging approach to confronting the resources shortage and environmental crisis. Porous N-doped Mo2C@C (N-Mo2C@C) nanoparticles self-encapsulated in nanospheres are presented as a high-performing HER electrocatalyst fabricated through a one-pot solvothermal method followed by hydrogen calcination.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Tao Wang, Oluwafunmilola Ola, Malcom Frimpong Dapaah, Yuhao Lu, Qijian Niu, Liang Cheng, Nannan Wang, Yanqiu Zhu
Summary: Recently, electrospun nanofiber composites as electrocatalysts for ORR and OER have gained significant attention. Transition metal elements and heteroatomic doping are effective methods to enhance their performance. The construction of electrocatalysts based on MOF electrospun nanofibers has become a research hotspot. This work synthesized nickel-cobalt zeolitic imidazolate frameworks and obtained nitrogen, oxygen, and sulfur-doped bimetal porous carbon nanofiber catalysts through high-temperature carbonization treatment. The catalysts exhibited different performances for ORR and OER, with Ni1Co2-ZIFs/PAN-Ar showing the best ORR activity and Ni1Co1-ZIFs/PAN-Air exhibiting the best OER performance.
Article
Chemistry, Physical
Ruilin He, Pan Yang, Qingsong Huang, Lijun Yang
Summary: In this study, Ru-doped mesoporous carbon nanofibers (Ru-mCNFs) electrocatalysts were prepared and the effects of metal contents on their performance were investigated. With a Ru content of 1.26%, Ru-mCNFs exhibited excellent electrocatalytic properties under alkaline conditions, comparable to a commercial Pt/C electrocatalyst with 20% loading. This work provides a promising solution for large-scale hydrogen production with low loading of noble catalysts.
CHEMICAL PHYSICS LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Yuan Dong, Jie Ying, Yu-Xuan Xiao, Jiang-Bo Chen, Xiao-Yu Yang
Summary: A novel strategy was presented to synthesize highly dispersed Pt nanoparticles embedded in N-doped porous carbon, exhibiting superior activity and durability in the hydrogen evolution reaction compared to commercial Pt/C catalyst. The excellent performance can be attributed to the combined features of catalyst and support material, including Pt dispersion, surface area and nitrogen doping of carbon, and strong metal-support interaction.
CHEMISTRY-AN ASIAN JOURNAL
(2021)
Article
Chemistry, Physical
Yang Zhou, Qiaowei Wang, Xinlong Tian, Ligang Feng
Summary: In this study, a novel and efficient bifunctional catalyst supported by cobalt selenide was demonstrated for hydrogen generation via methanol electrolysis. The catalyst showed high catalytic performance for both methanol oxidation and hydrogen evolution, with improved CO-tolerance ability and a promising energy-saving potential compared to traditional Pt/C catalysts. This work provides insights into metal-support interactions in hydrogen generation through methanol electrolysis.
Article
Materials Science, Multidisciplinary
Jing Chen, Anqiang Pan, Wenchao Zhang, Xinxin Cao, Rou Lu, Shuquan Liang, Guozhong Cao
Summary: The ultrafine Mo2C/Mo2N heterostructure confined in N-doped carbon nanofibers (N-CNFs) obtained by a melamine-assisted method shows enhanced electrocatalytic activity for hydrogen evolution reaction.
SCIENCE CHINA-MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Hongzhe He, Yan Zhang, Wenqin Zhang, Yuanyuan Li, Xing Zhu, Ping Wang, Dongmei Hu
Summary: This research successfully synthesized N-doped porous carbon nanofibers derived from silk fibroin by KCl chemical activation as metal-free catalysts for hydrogen evolution reaction. The optimized sample showed nearly nine times increase in specific surface area and significantly improved porosity, leading to enhanced efficiency under acidic and alkaline conditions. Additionally, the catalyst exhibited remarkable stability and durability due to the resistance of the carbon substrate against electrolyte corrosion.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Yuxiao Gao, Ying Zhao, Hongru Liu, Mingyu Shao, Zhi Chen, Tianyi Ma, Zexing Wu, Lei Wang
Summary: In this study, a Ru-Re3P4/NPC catalyst with porous nanostructure was prepared using a low-toxic material, which successfully regulated the electrocatalytic activity and improved the efficiency of the hydrogen evolution reaction.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Jibiao Guan, Wubing Chen, Yingjing Zhu, Lina Wang, Yaqin Fu, Baochun Guo, Ming Zhang
Summary: RuCo alloy nanoparticles were grown in-situ on N-doped carbon nanofibers, resulting in improved catalytic performance, reduced nanoparticle size, and increased active sites. The N-doped carbon nanofiber served as both a support and a substrate for the hydrogen evolution reaction, providing excellent catalytic activity and stability in alkaline media. The RuCo/NCNF with a Ru:Co ratio of 1:8 exhibited outstanding catalytic performance with low Tafel slope and low overpotential.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Analytical
Seyeon Park, Peresi Majura Bulemo, Won-Tae Koo, Jaehyun Ko, Il-Doo Kim
Summary: By utilizing solid-solution doping and catalytic metal nanoparticles, superior acetylene sensing capabilities were achieved through porous metal oxide nanofibers. The high porosity of the metal oxide nanofibers, prepared using electrospinning and sacrificial templating, was essential for high gas permeability and active sites. Ga-doped ZnO porous NFs functionalized with Pt catalysts demonstrated the highest C2H2 sensing responses with exceptional selectivity and stability against interfering gases.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Physical
Panpan Zhang, Xu Wang, Yangyang Yang, Haifeng Yang, Chunsheng Lu, Mingru Su, Yu Zhou, Aichun Dou, Xiaowei Li, Xiaochuan Hou, Yunjian Liu
Summary: In this study, the influence of transition metal doping on the electronic and mechanical properties and electrochemical performance of 2HMoS2/NC was investigated using Cobalt (Co) as an example. Co doping was found to effectively improve the electronic conductivity and active site areas of 2H-MoS2/NC at different positions, optimizing the adsorption and diffusion capability of potassium ions. Furthermore, the study revealed the optimal roles of different types of nitrogen atoms in kinetic adsorption, diffusion, and interfacial stability of potassium ions. These findings provide guidance for the experimental design of high rate 2H-MoS2/NC electrode materials and the optimal design of other functional composite materials.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zeeshan Ajmal, Mahmood Ul Haq, Shahid Zaman, M. K. Al-Muhanna, Anuj Kumar, Mohammed M. Fadhali, Siwar Ben Hadj Hassine, Muhammas Qasim, K. F. Alshammari, Ghulam Abbas Ashraf, Abdul Qadeer, Adil Murtaza, Sulaiman Al-Sulaimi, Huaqiang Zeng
Summary: This study presents a novel heterojunction structure (SrTiO3/CN-TAL10.0) for enhanced photocatalytic water splitting (PWS). The incorporation of thiophenedicarboxaldehyde (TAL) through copolymerization significantly improves the photocatalytic activity of carbon nitride (CN) while maintaining its photostability performance. The optimized composition allows efficient isolation of photoinduced charge carriers and enhanced charge transport, resulting in a remarkable increase in overall photocatalytic efficiency.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Angela Arnosa-Prieto, Patricia Diaz-Rodriguez, Manuel A. Gonzalez-Gomez, Pelayo Garcia-Acevedo, Lisandra de Castro-Alves, Yolanda Pineiro, Jose Rivas
Summary: Macrophages can exhibit different phenotypes depending on the microenvironment and the characteristics of magnetic iron oxide nanoparticles (MNPs). This study demonstrates that the concentration and morphology of MNPs can influence the polarization of macrophages. The findings have implications for therapeutics targeting tissue regeneration and tumor progression.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yu Fang, Cheng-Ye Zhu, Hao-Cheng Yang, Chao Zhang, Zhi-Kang Xu
Summary: This study demonstrates the advantages of vacuum-assisted interfacial polymerization (VAIP) in fabricating polyimide nanofiltration membranes. By using vacuum filtration, aqueous solutions of PIP can be evenly distributed on different microfiltration substrates, leading to the fabrication of uniform and ultra-thin polyamide layers with excellent performance. The membranes exhibit high rejection rates and water permeance, as well as satisfactory long-term stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Isaac J. Gresham, Edwin C. Johnson, Hayden Robertson, Joshua D. Willott, Grant B. Webber, Erica J. Wanless, Andrew R. J. Nelson, Stuart W. Prescott
Summary: Understanding the interactions between polymers and surfactants is crucial for optimizing commercial systems. This study tested the behavior of polymer-surfactant systems, revealing that they do not behave like polyelectrolytes in the presence of salt. Additionally, the structure of polymer-surfactant complexes under confinement differs from that of polyelectrolytes.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yunxiao Xie, Cui Liu, Jie Zhang, Yan Li, Bin Li, Shilin Liu
Summary: This study aimed to improve the microstructure and rheological properties of W/W Pickering emulsions by crosslinking sodium alginate at the water-water interface, thereby enhancing the activity of encapsulated probiotics in simulated gastrointestinal digestion.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Sang Ho Lee, Yige Sun, Patrick S. Grant
Summary: This research developed an effective approach to enhance the charging rates of lithium ion batteries (LIBs) by strategically incorporating carbon nanotube (CNT) conductivity boosters into Li4Ti5O12 (LTO) electrodes. Multi-layer architectures comprising CNT-rich and CNT-free LTO electrode layers were manufactured using a layer-by-layer spray coating method to promote charge transfer kinetics of high mass loading electrodes. The best performing multi-layer was paired with a spray-coated LiFePO4 (LFP) positive electrode, resulting in attractive power performance that outperformed conventional LTO || LFP combinations.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jingwei Liang, Shaobin Li, Fengbo Li, Li Zhang, Yufeng Jiang, Huiyuan Ma, Kun Cheng, Liang Qing
Summary: A molybdenum-regulated self-supporting electrode material with rich vacancy defects has been successfully synthesized and shows exceptional catalytic activities and stability for electrocatalytic overall water splitting. This study provides a new perspective for the design and synthesis of non-precious metal bifunctional electrocatalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jonas Blahnik, Jennifer Schuster, Rainer Mueller, Eva Mueller, Werner Kunz
Summary: This study investigates the relationship between the morphology of PMMA monopolymers and PMMA-PHEMA copolymers with the expected nature of surfactant-free microemulsions (SFMEs) before polymerization. It is found that previously mesostructured, surfactant-free mixtures can produce porous polymers of different morphologies, while unstructured, oil-rich regions lead to solid, transparent polymers without nanostructured morphologies. Additionally, a surfactant-based reference system shows similar phase behavior and polymer morphologies as the comparable surfactant-free system, indicating the importance of the hydrotropic behavior of HEMA in this system.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zheng-Fen Pu, Wen-Zhi She, Rong Sheng Li, Qiu-Lin Wen, Bi-Chao Wu, Chun-Hua Li, Jian Ling, Qiue Cao
Summary: This study synthesized two framework-isomeric covalent organic frameworks (COFs) and discovered that the light scattering signal of COFs can be used for the analytical detection of lead ions. By controlling synthesis conditions and introducing regulators, the morphology of COFs could be controlled and framework-isomeric COFs could be precisely synthesized.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yuchen Weng, Ying Hong, Jingyu Deng, Sicheng Cao, Li-Juan Fan
Summary: This paper reports the preparation of dynamic color-changing fluorescent polymer nanoparticles (PNPs) by constructing a fluorescence resonance energy transfer (FRET) pair. The PNPs show excellent anti-counterfeiting effects and reproducibility. The study demonstrates a promising encryption strategy that can achieve multiple outputs with simple operation.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Guodong Liu, Zijian Wang, Jianing Wang, Hanbin Liu, Zhijian Li
Summary: This study investigates the combination of multicolor switchable polyaniline (PANI) electrode and 1-methyl-4,4'-bipyridyl iodide (MBI), which demonstrates superior optical properties in visible and near-infrared light modulation, as well as excellent electrochemical performances. This combination can be used to develop novel electrochromic devices for applications in smart packaging, smart labels, and flexible smart windows.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Huying Yan, Yang Guo, Xingzhi Bai, Jiawei Qi, Haipeng Lu
Summary: By modifying Ti3C2Tx through heterogeneous interface engineering, optimized impedance matching is achieved, leading to enhanced electromagnetic wave absorption performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Kehu Zhang, Yang Zhou, Silvia Moreno, Simona Schwarz, Susanne Boye, Brigitte Voit, Dietmar Appelhans
Summary: This article presents an advanced crosslinking strategy to fabricate clustered polymersomes using host-guest interactions. By controlling the input of crosslinker and environmental conditions, reversible aggregation and disassembly of these polymersomes can be achieved. The size and structure of these clustered polymersomes can be regulated and visualized through a fluorescent enzymatic cascade reaction.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
Article
Chemistry, Physical
Junjie Xu, Weixiong Huang, Ruiling Li, Li Li, Jinjin Ma, Jiaou Qi, Haiyan Ma, Min Ruan, Lilin Lu
Summary: In this study, a potassium doped palladium catalyst was developed for acetylene hydrogenation, showing excellent catalytic performance and durability. The doping of potassium effectively weakened the adsorption of ethylene, improved ethylene selectivity, and lowered the barriers of hydrogen activation and transfer reactions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)