Article
Chemistry, Multidisciplinary
Hao Jiang, Mingzi Sun, Shuilin Wu, Bolong Huang, Chun-Sing Lee, Wenjun Zhang
Summary: By synthesizing oxygen-incorporated nickel molybdenum phosphide nanotube arrays, this study successfully developed self-supporting O-NiMoP/NF electrodes with highly efficient bifunctional catalytic activity towards HER and UOR.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Wenjuan Xu, Lin Zhu, Zejun Sun, Huichun Xue, Liutao Guo, Yanru Feng, Chengrui Li, Hong Li, Yiming Wang, Qionglin Liang, Hong-bin Sun
Summary: This study demonstrates the construction of co-catalysts with complex components through small-molecule induction in a simple protocol. The synthesized P-WO3/NF exhibits synergistic effects, improving the catalytic activity in the urea oxidation reaction and reducing electron transfer impedance in catalytic processes.
Article
Chemistry, Multidisciplinary
Liping Wang, Yajie Zhu, Yunzhou Wen, Shangyu Li, Chunyu Cui, Fenglou Ni, Yunxia Liu, Haiping Lin, Youyong Li, Huisheng Peng, Bo Zhang
Summary: A tungsten-doped nickel catalyst (Ni-WOx) was developed with superior activity towards the urea oxidation reaction, accelerating the reaction kinetics and increasing the turnover frequency. Experimental results demonstrated that tungsten doping led to the formation of Ni3+ sites with superior activity, facilitating the catalytic reaction.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Mengxiao Zhong, Weimo Li, Ce Wang, Xiaofeng Lu
Summary: This study reports the fabrication of NiS nanotubes as an efficient electrocatalyst for urea oxidation reaction through a novel template-directed hydrothermal reaction. The NiS nanotubes show superior UOR performance with a low potential and excellent stability, and can also be used as an anode for overall water splitting to reduce the working voltage. This research provides a rationale for the development of high-efficiency non-precious metal-based UOR catalysts.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Liping Ren, Duo Yang, Jinqi Li, Haisong Li, Jing-He Yang
Summary: The nitrogen-doped Ni5P4/NCF-400 bifunctional self-supporting electrocatalyst with low HER and UOR potentials and good stability is developed. The excellent performance of this electrocatalyst is attributed to the N doping and abundant active sites.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Qirun Wang, Xiaoqiang Du, Xiaoshuang Zhang
Summary: In this study, a simple preparation method for CoS/NiS@CuS with a dandelion-like heterostructure was developed. The electrode exhibited excellent electrochemical properties for urea oxidation, oxygen evolution, and hydrogen evolution reactions. Density functional theory calculations showed that CoS2 has the minimum Gibbs free energy of hydrogen, promoting the reaction rate. The presence of CoS2 increased the electrical conductivity of the material, and the synergistic effect of NiS and CuS contributed to superior hydrogen production properties.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Linlin Yang, Ren He, Xiang Wang, Tingting Yang, Ting Zhang, Yong Zuo, Xuan Lu, Zhifu Liang, Junshan Li, Jordi Arbiol, Paulina R. Martinez-Alanis, Xueqiang Qi, Andreu Cabot
Summary: Direct urea fuel cells (DUFCs) offer a solution for treating residual wastewater and generating electricity. The use of self-supported electrodes consisting of NiO nanosheets grown on CuO nanowires proves to be effective for urea oxidation reaction (UOR). These electrodes exhibit excellent UOR performance, requiring 1.39 V vs. RHE to achieve a current density of 100 mA/cm2. Additionally, the DUFCs demonstrate high open circuit voltages and power densities of 0.88 V and 11.35 mW/cm2, respectively. The formation of NiOOH and the presence of a NiO/CuO p-p heterostructure contribute to the enhanced performance through improved charge transfer and modulated electronic states.
Article
Chemistry, Multidisciplinary
Jia Yu, Peng Zhao, Haiyan Jing, Keren Lu, Boyuan Liu, Wu Lei, Qingli Hao
Summary: The properties of electrocatalysts, including active sites and charge/mass transfer characteristics, play a vital role in promoting the direct electrooxidation reaction of ammonia borane (ABOR) as the anodic reaction of direct ammonia borane fuel cells (DABFCs). In this study, a catalyst double-heterostructured Ni2P/Ni2P2O7/Ni12P5 (d-NPO/NP) with optimized redistribution of electrons and active sites was prepared for the first time. The d-NPO/NP-750 catalyst pyrolyzed at 750 degrees C showed outstanding electrocatalytic activity towards ABOR, with an onset potential of -0.329 V vs RHE, outperforming all previously published catalysts.
Article
Chemistry, Physical
Yi Zhang, Zhaohui Zhang, Ahmed Addad, Qi Wang, Pascal Roussel, Mohammed A. Amin, Sabine Szunerits, Rabah Boukherroub
Summary: A 0D/2D Co3O4/Ti3C2 MXene composite was synthesized and applied as an efficient and stable electrocatalyst for hydrogen evolution reaction (HER) and urea oxidation reaction (UOR). The hybrid catalyst exhibited higher catalytic activity and stability compared to pure Ti3C2 MXene and Co3O4, addressing the issue of insufficient exposure of active sites. Additionally, the composite material acted as a bifunctional catalyst for overall urea-containing water splitting and showed energy-saving advantages.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Yibing Liu, Debo Zheng, Ying Zhao, Pei Shen, Yingxue Du, Weiping Xiao, Yunmei Du, Yunlei Fu, Zexing Wu, Lei Wang
Summary: In this study, Ru-doped 3D porous Ni3N spheres were synthesized as urea oxide electrocatalyst. The catalyst exhibited good bifunctional catalytic performance for hydrogen evolution and oxygen evolution reactions with low overpotentials. It also showed good electrocatalytic performance in neutral and alkaline seawater electrolytes. Furthermore, the catalyst demonstrated extraordinary catalytic activity and stability toward urea oxide. It can be powered by sustainable energy sources such as wind, solar, and thermal energies.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Minjung Kim, Kyeongseok Min, Dasol Ko, Haemin Seong, Sang Eun Shim, Sung-Hyeon Baeck
Summary: Efficient bifunctional electrocatalysts play a vital role in hydrogen production and wastewater purification. In this study, a facile method was proposed to synthesize Co and N dual-doped Ni2P on Ni foam, which showed excellent catalytic performance for both OER and UOR. The Co-Ni2P-N/NF catalyst exhibited a low overpotential of 329 mV for OER and a significant reduction in potential for urea-assisted water oxidation, indicating its great potential in wastewater purification and energy-efficient hydrogen production.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Yuanjian Liu, Jibiao Guan, Wubin Chen, Yudong Wu, Shanshan Li, Xiangheng Du, Ming Zhang
Summary: This study focused on exploring high-efficient catalysts for hydrogen production, with Ni2Co1-P/CC showing the best performance in hydrogen evolution reaction and Ni1.5Co1.5-O/CC showing the best performance in urea oxidation reaction. By combining these catalysts, it only required 1.47 V to achieve a current density of 10 mA/cm² in the electrolytic cell for hydrogen production.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Shu-Cheng Tsai, Mao-Sung Wu
Summary: Manganese oxides with pompon-like microspheres and non-spherical shaped particles were grown hydrothermally on Ni foam substrates, resulting in Ni foam@Ni-MnO2 with embedded nickel ions. The Ni foam@Ni-MnO2 exhibited promising catalytic performance for urea oxidation reactions due to the presence of large electroactive surface area and high oxidation state of nickel-ion catalyst. The unique morphology of pompon-like microspheres in Ni foam@Ni-MnO2 provided abundant pore channels to facilitate urea molecules and products diffusion in the UOR process.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Hainan Sun, Jiapeng Liu, Gao Chen, Hyunseung Kim, Sangwoo Kim, Zhiwei Hu, Jin-Ming Chen, Shu-Chih Haw, Francesco Ciucci, WooChul Jung
Summary: By constructing a hierarchical structure of CuO nanowires decorated with nickel hydroxide on 3D Cu foam, this research achieved a significant reduction in the potential of urea oxidation reaction to 1.334 V, along with enhanced activity up to 100 mA cm(-2), and exceptional stability. Electrolysis of urea using this developed electrocatalyst as the anode showed promising results in terms of energy-saving hydrogen production.
Article
Chemistry, Physical
Jinyang Li, Xiujuan Xu, Xianbiao Hou, Shucong Zhang, Ge Su, Weiqian Tian, Huanlei Wang, Minghua Huang, Arafat Toghan
Summary: Deliberate modulation of the electronic structure via interface engineering is a promising approach to build advanced catalysts for urea oxidation reaction (UOR) at high current densities. A coupled NiSe2 nanowrinkles with Ni5P4 nanorods heterogeneous structure onto Ni foam (NiSe2@Ni5P4/NF) was reported, which provides high-flux electron transfer pathways. The well-designed NiSe2@Ni5P4/NF exhibits low potential, small Tafel slope, high turnover frequency (TOF) and prolonged stability, showing potential for designing advanced UOR catalysts.
Article
Biophysics
Ruilin Zhang, Lei Liu, Wei Li, Xiaogang Luo, Fengshou Wu
Summary: In this work, iron-doped carbon dots (Fe-CDs) with peroxidase mimicking property were prepared and their application for the detection of hydrogen peroxide (H2O2) and glucose was explored. The Fe-CDs emitted intense blue luminescence and exhibited remarkable peroxidase mimicking property. A new optical dual-mode method for the detection of H2O2 and glucose was successfully established based on these properties.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2023)
Article
Chemistry, Applied
Xiang Li, Yilan Zhao, Yuan Qiu, Xiaogang Luo, Genyan Liu, Qi Sun
Summary: Neutrophil elastase (NE) is an important serine protease that can serve as a biomarker for inflammatory-related diseases. Only a few red-emitting fluorescence probes with low enhancement have been reported for NE detection. In this study, a novel NE fluorescent probe BP-NE was developed using the red-emitting fluorophore BP, which exhibited high quantum yield. BP-NE showed improved detection of NE activity with low limit of detection, high signal-to-noise ratio, and high affinity compared to previous red-emitting NE fluorescent probes. It was also able to quantitatively analyze endogenous NE levels in different cell lines and zebrafish, making it promising for NE disease research in vitro and in vivo.
Article
Chemistry, Applied
Miao He, Xiaolong Chen, Jing Zhang, Jiawei Li, Dong Zhao, Yang Huang, Danqun Huo, Xiaogang Luo, Changjun Hou
Summary: Accurately identifying different liquors from the same brand is crucial for protecting consumer rights and the market economy. This study investigates the spectral properties of liquors using UV, NIR, and multi-way fluorescence spectroscopy, and combines them with chemometrics to distinguish the liquors. By constructing a four-way fluorescence spectrum data array and utilizing mid-level data fusion, the accuracy, sensitivity, and specificity of liquor identification are significantly improved.
Article
Chemistry, Applied
Yuanyuan Chen, Peng Zhao, Zhikun Hu, Yi Liang, Haiyan Han, Mei Yang, Xiaogang Luo, Changjun Hou, Danqun Huo
Summary: In this study, amino-functionalized multilayer titanium carbide (NH2-Ti3C2Tx) was developed and applied for electrochemical detection of Cd2+ and Pb2+. The NH2-Ti3C2Tx exhibited satisfactory electrochemical performances and demonstrated good practicality in the simultaneous determination of Cd2+ and Pb2+ in food samples.
Article
Chemistry, Multidisciplinary
Jiaying Zhao, Yanyi Long, Congjuan He, Huisi Yang, Shixian Zhao, Xiaogang Luo, Danqun Huo, Changjun Hou
Summary: Heavy metal ion (HMI) pollution poses a serious threat to human health and the ecosystem. This study establishes a novel sensing platform based on ZIF-67-derived cobalt/nitrogen-doped carbon (NC) composite polyhedrons linked with multiwalled carbon nanotubes (MWCNTs) for simultaneous monitoring of Cd2+ and Pb2+. The proposed sensing platform exhibits a wide linear range and low limits of detection, showing outstanding anti-interference performance in actual water samples.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Jinjin Zeng, Binyu Zhao, Xiaogang Luo, Fengshou Wu
Summary: In this study, carbon dots-functionalized Fe3O4 nanocomposites (CDs@Fe3O4) were successfully prepared using a facile and cost-effective method. The nanocomposites demonstrated enhanced affinity towards hydrogen peroxide (H2O2) and higher peroxidaselike activity compared to bare Fe3O4 nanoparticles. A colorimetric method was developed based on CDs@Fe3O4 for the detection of H2O2 and glucose in real samples, with limit of detection (LOD) calculated to be 1.53 μM and 2.2 μM respectively. This work provides a new strategy for constructing artificial nanozymes for colorimetric sensing of H2O2 and related molecules.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Food Science & Technology
Chen Yu, Xiaogang Luo, Fengshou Wu, Juan Zhang
Summary: A covalent organic framework/reduced graphene oxide composite (COF/rGO) was prepared and applied for headspace solid-phase microextraction (HS-SPME) of polycyclic aromatic hydrocarbons (PAHs) prior to gas chromatography-flame ionization detection (GC-FID). The COF/rGO composite effectively prevented the stacking of graphene oxide nanosheets and exhibited enhanced extraction efficiency, with high enrichment factors. The developed HS-SPME/GC-FID method showed good performance in the analysis of PAHs in honey, with high recoveries and reliable reproducibility.
FOOD ANALYTICAL METHODS
(2023)
Article
Nanoscience & Nanotechnology
Xiaogang Luo, Dongli Xie, Jing Su, Jianchen Hu
Summary: This study evaluated the adverse effects and toxic mechanisms of multi-walled carbon nanotubes (MWCNTs) on human ocular cells. The results showed that MWCNTs could enter the cells and cause cell damage, leading to decreased cell viabilities. RNA sequencing analysis identified key genes associated with MWCNT exposure, particularly inflammation-related genes. Validation experiments confirmed the upregulation of these genes and their regulation by long non-coding RNAs. These findings provide promising biomarkers for monitoring MWCNT-induced eye disorders and targets for developing preventive and therapeutic strategies.
INTERNATIONAL JOURNAL OF NANOMEDICINE
(2023)
Article
Instruments & Instrumentation
Kaiqiang Yao, Zhuodai Li, Chang Zong, Heng Tian, Xujia Luo, Guorui Liu, Youxin Kang, Zhiqiang Fu, Jian Rong, Weixiong Zhang, Yuxi Wang, Junjie Zeng, Xiangsheng Tian, Jiqiu Hu, Xiaogang Luo, Chunxian Liu, Minghai Yu, Feng Wu, Jingjing Chen, Juntao Liu, Zhiyi Liu
Summary: This study proposes a novel and compact borehole muon detector with high sensitivity, which can record the angle of incident muons and achieve imaging of target objects. The detector design and performance are validated through Monte Carlo simulations and experimental research. The results indicate that the detector has good positional and angular resolutions and high efficiency in identifying objects with different densities.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2023)
Article
Nanoscience & Nanotechnology
Jiangbo Dong, Jilin Zheng, Jingzhou Hou, Peng Zhao, Yi Liang, Jincan Lei, Xiaogang Luo, Changjun Hou, Danqun Huo
Summary: This study developed an ultrasensitive enzyme-free ratiometric electrochemical sensing platform for in-situ determination of cell-secreted H2O2. The platform uses ferrocene (Fc) as an internal reference probe and nanoflower Au-Co-MOF as a detection probe. The detection platform showed a detection limit as low as 32 nM, with excellent selectivity, reproducibility, stability, and biocompatibility. It has great potential for in-situ determination of cell-secreted H2O2.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Applied
Jing Zhang, Jiaxi Deng, Jia Zheng, Yi Ma, Huibo Luo, Xiaogang Luo, Changjun Hou, Danqun Huo
Summary: An acid-sensitive carbon dot fluorescence sensing array was studied for differentiating distilled spirits. The electrostatic interactions between CDs and organic acids influenced the protonation and fluorescence properties of CDs, resulting in changes in triple fluorescence emission. The fluorescence sensor showed a regular linear variation under acidic conditions (3.0 < pH < 6.2). A comprehensive study was conducted on different acids (8 species), different concentrations (0.1 mM, 1 mM, 10 mM, 40 mM), mixed acids (formic acid and acetic acid), and the quantification capability for acetic acid (0.01-1 mM). The sensor array demonstrated excellent recognition ability for complex analytes. Using linear discriminant analysis (LDA), the fluorescence sensor array achieved 100% accuracy in identifying 16 types of Baijiu and 21 types of distilled liquors.
Article
Chemistry, Applied
Wenxia Tian, Xiaofang Liu, Jia Zheng, Yi Ma, Huibo Luo, Xiaogang Luo, Changjun Hou, Danqun Huo
Summary: A fluorescence sensor array based on PEI-terminated silver nanoparticles and lanthanide metal ions (PEI@Ag NPs@Ln) was constructed to quickly discriminate different segmented Baijiu, controlling its grade and indirectly affecting the quality of the finished Baijiu. With the assistance of pattern recognition, segmented Baijiu from three cellars were successfully discriminated. The whole process takes only 2 min, highlighting its fast, effective, and simple characteristics and potential practical application in the detection field.
Article
Energy & Fuels
Wenwen Miao, Junxiang Wang, Gexian Li, Shilin Liu, Xiaogang Luo
Summary: Commercial polymer separators in lithium-ion batteries (LIBs) often have low thermal stability and electrolyte wettability, reducing battery performance and safety. In this study, novel PVA/cellulose composite membranes (P-CMs) were prepared through noncovalent cross-linking, exhibiting superior thermal degradation and minimal dimension change. The phase-separated 3D-network porous structure of P-CMs enhances Li+ transport and the cross-linking structure improves electrolyte affinity and interfacial compatibility.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Construction & Building Technology
Yin Cheng, Xiaoyuan Wang, Jianzhuang Chen, Hao Yu, Jun Shen, Xiaogang Luo, Jianguo Li
Summary: This study proposed a method of treating circulating fluidized bed (CFB) fly ash with bubble-mixed lightweight soil (BMLS). Artificial air bubbles in BMLS were used to control the expansibility of CFB fly ash mixed with cement. The impact of CFB fly ash on the pore structure of BMLS with CFB fly ash (BMLS-CF) was investigated. The sulfur compounds in CFB fly ash reacted with cement in BMLS-CF to form ettringite and gypsum, which adhered to pores of various sizes. The accommodation of expansive substances in BMLS-CF increased with the volume and number of bubbles, with the best effect observed at a CFB fly ash content of 50-66.7%.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Xiaogang Luo, Zhongna Yan, Hang Luo, Xuefan Zhou, Boyuan Li, Man Zhang, Dou Zhang
Summary: This study reports significantly improved piezoelectric properties and DC resistivity of CaBi2Nb2O9 ceramics through Na+ and Sm3+ co-doping. An optimum composition of Ca-0.95(Na, Sm)(0.025)Bi2Nb2O9 is obtained, which possesses a high Curie point, a high piezoelectric coefficient, and a low DC electrical resistivity at high temperatures. Furthermore, the piezoelectric coefficient maintains about 90% of the initial value after annealing at 900 degrees C for 2 h.
ADVANCED POWDER MATERIALS
(2023)
