Article
Energy & Fuels
Zhihui Ma, Haitao Wang, Hanyu Ma, Sihui Zhan, Qixing Zhou
Summary: In this study, we report the growth of Ni5P4 nanosheets on nickel foam as a bifunctional electrode for urea electrolysis. The electrode exhibits a unique crystalline@amorphous core-shell structure, which leads to outstanding urea oxidation performance. The electrode is superhydrophilic and aerophobic, facilitating the release of gas bubbles and preventing blockage of active sites. The electrode also shows excellent stability in both urea electrolysis and hydrogen evolution reactions.
Article
Chemistry, Multidisciplinary
Yan-Ru Fan, Jin-Qi Li, Yu-Xi Yang, Zhi-Hao Zhang, Jie Zhang, Jing-He Yang
Summary: Phosphorus-doped nickel plating on carbon fibers (Ni-P/CF) demonstrates excellent urea electrooxidation performance and durability, with the potential for large-scale industrial production.
FRONTIERS IN CHEMISTRY
(2023)
Article
Chemistry, Physical
Pier Giorgio Schiavi, Pietro Altimari, Flavio Marzolo, Antonio Rubino, Robertino Zanoni, Francesca Pagnanelli
Summary: An experimental analysis was conducted to optimize the structure of Ni-Ni(OH)(2)/NiO core-shell nanowire electrodes for pseudocapacitor applications. The thickness and composition of the active phase shell were found to be affected by thermal treatments at different temperatures, resulting in varying capacitance values. Tailoring the capacitance of the electrodes by controlling the nanowire length was evaluated, showing that mass transfer resistance can be negligible within a certain range.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Biotechnology & Applied Microbiology
Mohamed Taha, Yasser A. Attia, Shymaa S. Medany
Summary: Investigation on the electrocatalytic activity of Ni/NiO microflower-decorated g-C3N4 heterostructure towards urea electrochemical oxidation (UEO) showed that the Ni/NiO 30%/g-C3N4 nanocomposites exhibited the highest electrocatalytic activity and stability.
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
(2023)
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, Multidisciplinary
Assia Karrab, Remi Bensimon, Diane Muller, Stephane Bastide, Christine Cachet-Vivier, Salah Ammar
Summary: This study reported a new photoelectrode based on hematite Co-Fe2O3@NiO and investigated its electrochemical and photoelectrochemical properties. The electrode was prepared using a combination of co-precipitation and microwave-assisted synthesis. Characterization techniques including XRD, SEM, EDX, UV-vis, and FT-IR were used to analyze the obtained products. The study found that the Co-Fe2O3@NiO electrode exhibited good performance in electrochemical water oxidation and catalytic oxidation of urea.
Article
Chemistry, Physical
Bo Jiang, Zhe Wan, Yunqing Kang, Yanna Guo, Joel Henzie, Jongbeom Na, Hexing Li, Shengyao Wang, Yoshio Bando, Yoshio Sakka, Yusuke Yamauchi
Summary: Researchers have developed a new type of porous metallic aerogels with a core-shell structure, exhibiting high conductivity and surface area for catalysis. By utilizing an auto-programmed synthesis method, they successfully generated a trimetallic core-shell Cu@Fe@Ni metallic aerogel with highly active catalytic properties.
Article
Chemistry, Physical
Jing-He Yang, Miaomiao Chen, Xiuhong Xu, Suyu Jiang, Yatao Zhang, Yinghua Wang, Ying Li, Jie Zhang, Duo Yang
Summary: The study presents a controllable synthetic strategy for CuO-Ni(OH)2-d nanosheets, which exhibit excellent activity and stability in urea electrooxidation reactions. CuO-Ni(OH)2-d also shows higher current density compared to commercial catalysts.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Meijuan Yuan, Xiaotian Guo, Nan Li, Huan Pang
Summary: By utilizing biomass materials, optimal catalytic properties for the urea electro-oxidation reaction were achieved, resulting in lower potential and higher efficiency for energy conversion.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Sun-Woo Kim, Jae Chul Ro, Su-Jeong Suh
Summary: Ni/Ni3C core-shell nanoparticles with an average diameter of approximately 120 nm were synthesized via a chemical solution method. It was observed that a thin Ni3C shell measuring approximately 1-4 nm formed on the surface of the nanoparticles over time, and the Ni core consisted of multiple grains. The saturation magnetization of the core-shell nanopowders decreased in proportion to the amount of Ni3C. The synthesis mechanism of the Ni/Ni3C core-shell nanoparticles was proposed based on XRD, XPS, and TEM analyses.
Article
Chemistry, Physical
Nasser A. M. Barakat, Enas Ahmed, A. A. Farghali, Mamdouh M. Nassar, Gehan M. K. Tolba, Ayman H. Zaki
Summary: The reported Ni-based electro-catalysts are not suitable as anode materials for alcohol-based proton exchange membrane fuel cells due to their high onset potentials. However, these materials can be used for hydrogen generation from alcohols with small biases. In the electro-oxidation of tri(ammonium) phosphate, Ni-decorated graphene is found to be an effective catalyst, and the active layer is not consumed during the reaction.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Energy & Fuels
Xin Yu, Zuo Miao, Huiqiang Wang, Wenlong Jia, Qian Wang, Yong Sun, Xing Tang, Xianhai Zeng, Shuliang Yang, Zheng Li, Zuo-Jun Wei, Feng Xu, Lu Lin
Summary: This study reports a facile and green core-shell structure N-doped carbon-supported nickel catalyst, which exhibits excellent activity and efficiency for the oxidation of furfural and other aldehydes. The catalyst shows outstanding stability and reusability, providing an effective catalytic strategy for selective oxidation reactions.
Article
Chemistry, Multidisciplinary
Chenshuo Wu, Lei Zhou, Junxiang Zhang, Bin Wang
Summary: This study proposes a facile method for the preparation of efficient Pd-based electrocatalysts for alcohol electro-oxidation. The Ni(OH)(2) substrate prevents aggregation of nanoparticles and inhibits Pd poisoning, leading to outstanding electrocatalytic performance.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Tamara S. Moraes, Vanderlei S. Bergamaschi, Joao C. Ferreira, Estevam Spinace
Summary: A core-shell catalyst was tested for ethanol steam reforming reaction under low-temperature conditions, showing excellent activity and high coke inhibition capacity compared to other catalysts.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Chemistry, Physical
Yuyu Li, Fang Luo, Yuhua Xie, Chaofeng Chang, Ming Xie, Zehui Yang
Summary: Urea oxidation reaction (UOR) has the potential to replace oxygen evolution reaction (OER) in water splitting technology due to its lower theoretical potential, resulting in simultaneous hydrogen generation and water purification. In this study, we synthesized aNi(OH)2 porous nanoflowers (a-Ni(OH)2-PNF) using ZIF-67 as a template. The presence of nanopores on a-Ni(OH)2 nanosheets, attributed to the Kirkendall effect, facilitates the formation of oxygen vacancies and reduces mass transfer resistance during UOR catalysis. Additionally, a-Ni(OH)2-PNF exhibits a lower voltage requirement for catalyzing UOR and exceptional stability during 20 hours of catalysis.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Wenjing Tan, Chunmei Gao, Shifeng Ji, Yunqing Xing, Yi Guo, Baogui Liang
Summary: Membrane separation technology is widely used in wastewater treatment due to its cost-effectiveness and productivity. However, organic membrane fouling caused by humic acid is a major barrier to its further development. This study successfully addressed this issue through the production of composite materials and self-cleaning membranes, providing beneficial strategies and solutions for membrane contamination problems.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Qichang Peng, Qingdong Ruan, Bin Wang, Jinyuan Liu, Chao Huang, Xingwang Zhu, Dan Li, Liangliang Liu, Yinchuan Wang, Xiaolin Zhang, Jia Yan, Paul K. Chu, Hui Xu
Summary: The escalating issue of water pollution has led to significant attention in the field of photocatalysis. In this study, OV-Sb2WO6-X photocatalyst with oxygen vacancies was synthesized, which exhibited enhanced charge separation efficiency and improved photocatalytic activity. The introduction of oxygen vacancies was successfully controlled and characterized, and the modified photocatalyst showed superior degradation efficiency for dye wastewater treatment.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wangcheng Zhang, Cunchuan Zheng, Hu Xie, Weichao Du
Summary: By using a specific curing agent ETB, the problem of dispersion and stability for oily epoxy resin in cement slurry system has been successfully solved. The application of the emulsified curing agent ETB in oilfield cement slurry system shows good rheological performance, resistance to high temperature and high pressure water loss, and corrosion resistance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
O. I. Krivonos, A. Babenko, O. B. Belskaya
Summary: This study synthesized biochar based on sapropel and investigated the effects of chemical modification on its textural characteristics, acid-base properties, and adsorption properties. The results showed that the chemical modification increased the fraction of micropores, specific surface area, and changed the surface properties of biochar. The experiment also revealed that biochar pretreated with alkali exhibited the maximum adsorption capacity for copper ions. A conceptual model identifying the mechanisms of copper adsorption on sapropel-based biosorbent was proposed.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
H. Lachhab, N. Benzbiria, A. Titi, S. Echihi, M. E. Belghiti, Y. Karzazi, A. Zarrouk, R. Touzani, C. Jama, F. Bentiss
Summary: The corrosion inhibitory potency of two new pyrimidine-pyrazole derivatives, PPA and PPC, was evaluated for mild steel in 1 M HCl. The results showed enhanced inhibition activities with increased concentration, reaching maximal values of 91.15% and 92.39% for PPA and PPC, respectively. However, the mitigation potency decreased with increasing temperature. SEM and XPS analysis revealed that PPA and PPC adsorbed on the mild steel surface, forming a shielding layer that prevented the dissolution of the steel in the acidic solution.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Shanmugapriya Sivalingam, D. Jeya Sundara Sharmila, Goutham Golla, Lakshmanan Arunachalam, Tarunendu Singh, G. Karthikeyan, A. Shanthi, Kannan Malaichamy
Summary: This study aims to develop a nano-biofungicide comprising of volatile essential oil molecules to enhance its efficacy in the field of agriculture through easily scalable green synthesis technique. The nano biofungicide was prepared through one pot hot melt ultrasonication technique with easy water dispersibility and long term stability. The physico-chemical analysis revealed that, nano bio-fungicides were amorphous sphere-shaped nanoparticles with low melting point. The encapsulation efficiency of major components of essential oil was determined, and it was found that they followed Higuchi model of release kinetics. The essential oil loaded nanostructured lipid carrier showed significantly higher mycelial growth inhibition compared to pure essential oil, indicating enhanced bio-efficacy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yinlong Li, Yingqing Zhan, Yiwen Chen, Hongshan Jia, Ximin Chen, Fei Zhu, Xulin Yang
Summary: In this study, ZnO quantum dots decorated MXene nanosheets were used as a functional filler for waterborne epoxy coating. The improved dispersion and synergy of ZnO QDs and MXene nanosheets enhanced the anticorrosion performance of the coating.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Fucheng Guan, Jing Tao, Qiang Yao, Zheng Li, Yihang Zhang, Shi Feng, Jianbin Sun, Qiang Yang, Xuecui Song, Jing Guo, Yuanfa Liu
Summary: This paper presents a method for preparing adsorbent materials based on biomass that can efficiently adsorb methylene blue. The experimental results show that the material has a hierarchical structure, high adsorption capacity, and reusability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Pengfei Hu, Zuli Mo, Weiliang Wang, Chengzhe Li, Zhaojia Guo, Guanqing Lin, Zhimin Guo
Summary: This study developed a novel in-situ particle vision and measurement (PVM) system to investigate heterocoagulation between coarse and fine particles in mineral processing. The experimental results showed that the degree of heterocoagulation decreased with increasing pH and stirring speed. Furthermore, under certain hydrodynamic conditions, coal particles were more distributed at the rear of the glass bead.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Tanveer ul Haq Zia, Anwar ul Haq Ali Shah, Behisht Ara, Kashif Gul
Summary: A label-free immunosensor for detection of hepatitis C core antigen was fabricated using a ternary nanocomposite based on polypyrrole, silver doped zinc oxide, and exfoliated graphene. The immunosensor demonstrated low detection limit, high selectivity, and stability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoyan Feng, Jiachen Li, Lijun Liang, Linli Zhu, Sa Liu, Li Ren
Summary: In this study, polystyrene divinylbenzene microspheres were surface-modified by poly(carboxybetaine methacrylate) to develop an efficient hemoperfusion adsorbent for the removal of protein-bound toxins. The modified microspheres showed increased adsorption capacity and better biocompatibility, making them promising for clinical hemoperfusion therapy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoye Bi, Dong Xue, Yunpeng Wang, Chencheng Lv, Zexiong Li, Tao Zhao
Summary: This research aimed to develop a durable and formaldehyde-free flame retardant treatment for cotton fabrics. The results demonstrated successful grafting of phosphorous acid (PA) onto cotton fabrics, leading to enhanced flame resistance while maintaining the desired fabric characteristics.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Ruolin Wang, Wenjuan Sun, Haisheng Han, Dongping Tao
Summary: This study finds that Al-starch colloidal depressants can effectively inhibit the flotation of ultrafine calcite and chlorite, and increase the grade of valuable minerals. The chemisorption of Al-starch on mineral surface changes the functional group peaks and generates new O-Al functional groups.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wondimu K. Wakejo, Ali Maged, Beteley T. Meshesha, Joon W. Kang, Abayneh G. Demesa, Sandip Chakrabarti, Thallada Bhaskar, Ashok Kumar Gupta, Amit Bhatnagar
Summary: Simultaneously removing different pharmaceutical pollutants from wastewater is an important environmental issue, and the use of a system that can remove multiple contaminants at once is necessary. Functionalized biochar (FBC) has been found to be effective in simultaneously removing acetaminophen and ciprofloxacin and other pharmaceutical pollutants.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yu Wang, Fengwen Yan, Jie Wu, Zhijun Huang, Liuting Song, Shunda Yuan
Summary: In this study, Cu single atoms are anchored on the external surface of g-C3N4 nanofibers to maximize atom utilization. This catalyst exhibits excellent Fenton-like catalytic activity and good stability due to the full utilization of Cu active sites.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)