Article
Chemistry, Multidisciplinary
Bo Wu, Tiejun Lin, Ruoou Yang, Min Huang, Huan Zhang, Ji Li, Fanfei Sun, Fei Song, Zheng Jiang, Liangshu Zhong, Yuhan Sun
Summary: The study shows that chemoselective hydrogenation of nitrobenzene to azoxybenzene can be achieved using Ru single atoms coordinated with oxygen atoms in CeO2, offering a selectivity of 88.2%. This work provides a new strategy for the development of an efficient and green catalytic route.
Article
Chemistry, Multidisciplinary
Xiaoheng Jin, Xinyue Wen, Sean Lim, Rakesh Joshi
Summary: Graphene oxide (GO)-based materials show great potential for adsorption and purification, capable of removing various contaminants from water environments. By tuning the interlayer spacing and cationic control solutions, size-selective ion adsorption in GO layers has been achieved.
Article
Chemistry, Inorganic & Nuclear
Siqi Li, Zhipeng Huang, Huifang Liu, Meijiang Liu, Chaofeng Zhang, Feng Wang
Summary: An efficient approach for the synthesis of arylamines from nitroarenes and hydrazine using an iron-molybdenum sulfide catalyst has been presented. The study reveals that the reduction of the nitro group to the nitroso group is the rate-determining step, and it is confirmed that the active H* should be in polar states.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Multidisciplinary
Ann W. Mureithi, Yonglei Sun, Tomoyasu Mani, Amy R. Howell, Jing Zhao
Summary: The type of hole scavengers plays a crucial role in the yield and selectivity of nanoparticle-catalyzed photochemical reactions, determining the reaction pathway and final product. Some hole scavengers directly participate in the redox reaction of intermediates.
CELL REPORTS PHYSICAL SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
MinSoung Kang, Geonhee Lee, Kiyoung Jang, Du Won Jeong, Jeong-O Lee, Hyunwoo Kim, Yong Ju Kim
Summary: This study found that graphene quantum dots (GQDs) can accelerate the protein crystallization process and potentially modify the structure and dynamics of the protein. The binding of GQDs to the protein may enhance the crystallization process by reducing protein flexibility.
CRYSTAL GROWTH & DESIGN
(2022)
Article
Chemistry, Analytical
Aihua Lyu, Yisha Wang, Hua Cui
Summary: In this study, a new mechanism for enhancing chemiluminescence (CL) was developed through the coembedding of N-(aminobutyl)-N-(ethylisoluminol) (ABEI) and Co2+ into gold nanoparticle-modified covalent-organic frameworks (COFs). The confinement of ABEI and Co2+ into Au-COF brought over 20-fold enhancement of CL intensity. This work proposes a novel enhancement mechanism for CL based on crystalline porous materials, which provides a new perspective for the development of CL-functionalized materials for biosensors and bioassays.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Mohsen S. Al-Omar, Majid Jabir, Esraa Karsh, Rua Kadhim, Ghassan M. Sulaiman, Zainab J. Taqi, Khawla S. Khashan, Hamdoon A. Mohammed, Riaz A. Khan, Salman A. A. Mohammed
Summary: The study showed that gold nanoparticles and graphene oxide flakes enhanced the phagocytic ability of macrophages, leading to the elimination of cancer cells by promoting the activities of granzyme and perforin.
Article
Chemistry, Multidisciplinary
Taiwo Hassan Akere, Aline M. Z. de Medeiros, Diego Stefani T. Martinez, Bashiru Ibrahim, Hanene Ali-Boucetta, Eugenia Valsami-Jones
Summary: This study successfully synthesized a graphene oxide-gold nanohybrid (GO-Au) and evaluated its suitability as a test material in nano(ecotoxicological studies. Graphene oxide was synthesized and used as a substrate for the growth of nano-Au decorations. The nanohybrid showed good stability in different environmental media and its physicochemical characteristics did not deteriorate over a period of months.
Article
Chemistry, Physical
Lingqi Huang, Zhiyong Luo, Wenjie Han, Qi Zhang, He Zhu, Shiping Zhu
Summary: In this study, hollow porous carbons (HPCs) were prepared using a simple and cost-effective method, and their potential in catalysis was demonstrated through the fabrication of Au@HPCs yolk-shell composites.
Article
Biochemistry & Molecular Biology
Tajana Kostadinova, Nikolaos Politakos, Ana Trajcheva, Jadranka Blazevska-Gilev, Radmila Tomovska
Summary: This study selected two different graphene oxides to investigate the effect of graphene on SERS performance, finding that the characteristics of graphene can influence the size, shape, and packing of nanoparticles, thereby affecting the final SERS effect.
Article
Green & Sustainable Science & Technology
Binta Hadi Jume, Parham Joolaei Ahranjani, Sara Farshineh Saei, Firas Muhammad Zeki Mahmood, Yasser Vasseghian, Shahabaldin Rezania
Summary: This study evaluated a novel heterogeneous catalyst based on bimetal layered strontium-titanium trioxide doped on graphene oxide-based iron oxide nanoparticles for biodiesel production. The catalyst exhibited high catalytic efficiency and simplicity in separation under the optimum condition.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Spectroscopy
Xujing Yuan, Linlin Ge, Haichun Zhou, Junqi Tang
Summary: Gold nanostructures, particularly isotropic spherical gold nanoparticles (AuNPs), have been extensively studied for their catalytic activity in heterogeneous catalytic processes. In this study, the influence of size, composition, and surface capping agents on the catalytic activity of AuNPs in reduction reactions was investigated. The results showed that the catalytic activity of AuNPs decreases with increasing size, while the presence of anisotropic AuNPs did not significantly affect the catalytic activity of AuNPs with tartrate as the reducing agent. Additionally, silver was found to enhance both the monodispersity and catalytic activity of small AuNPs. Overall, this study provides valuable insights into the factors that influence the catalytic activity of AuNPs and expands the potential applications of gold-based catalysts and AuNPs in various fields.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Analytical
Ritika Gupta, Amit Kumar, Sandeep Kumar, Anil Kumar Pinnaka, Nitin Kumar Singhal
Summary: This study developed a detection platform utilizing the properties of gold nanoparticles and graphene oxide to detect E. coli cells through aptamer conjugation. The sensitivity of the designed nanoprobe was enhanced by covering AuNPs with graphene oxide. This platform was found to be applicable in glass capillary for making a point of care detection device.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Multidisciplinary
Junmo Jeon, Minsik Choi, Seul Bi Kim, Tae Hoon Seo, Bon-Cheol Ku, Seongwoo Ryu, Ji Hun Park, Young-Kwan Kim
Summary: This paper demonstrates that eggshell membrane protein hydrolysate can be used as a multifunctional agent for eco-friendly reduction and functionalization of graphene oxide, and exhibits high catalytic activity in the synthesis of gold nanoparticles.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Electrochemistry
F. Yusoff, A. R. Rosli, H. Ghadimi
Summary: A new electrode was developed in this research for detecting dopamine in urine samples, with improved detection performance using synthesized nanocomposite materials. The electrode showed high sensitivity and selectivity towards dopamine detection, offering a potential method for electrochemical sensing in human samples.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Soon Wook Kim, Tri Khoa Nguyen, Doan Van Thuan, Dinh Khoi Dang, Seung Hyun Hur, Eui Jung Kim, Sung Hong Hahn
KOREAN JOURNAL OF CHEMICAL ENGINEERING
(2017)
Article
Chemistry, Multidisciplinary
Jong-Won Yun, Ki Yeon Ryu, Tri Khoa Nguyen, Farman Ullah, Yun Chang Park, Yong Soo Kim
Article
Nanoscience & Nanotechnology
Jong-Won Yun, Farman Ullah, Se-Jeong Jang, Do Hui Kim, Tri Khoa Nguyen, Ki Yeon Ryu, Shinuk Cho, Joon Jang, Dooyong Lee, Sungkyun Park, Yong Soo Kim
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Chemistry, Physical
Tri Khoa Nguyen, Alexander G. Bannov, Maxim V. Popov, Jong-Won Yun, Anh Duc Nguyen, Yong Soo Kim
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2018)
Article
Physics, Condensed Matter
Heung-Yeol Cho, Tri Khoa Nguyen, Farman Ullah, Jong-Won Yun, Cao Khang Nguyen, Yong Soo Kim
PHYSICA B-CONDENSED MATTER
(2018)
Article
Chemistry, Multidisciplinary
Van Viet Pham, Dai Phat Bui, Hong Huy Tran, Minh Thi Cao, Tri Khoa Nguyen, Yong Soo Kim, Van Hieu Le
Article
Chemistry, Multidisciplinary
Eunah Kim, Jin-Woo Cho, Tri Khoa Nguyen, Trang Thi Thu Nguyen, Seokhyun Yoon, Jun-Hyuk Choi, Yun Chang Park, Sun-Kyung Kim, Yong Soo Kim, Dong-Wook Kim
Article
Nanoscience & Nanotechnology
Tri Khoa Nguyen, Anh Duc Nguyen, Chinh Tam Le, Farman Ullah, Zeeshan Tahir, Kyo-in Koo, Eunah Kim, Dong-Wook Kim, Joon I. Jang, Yong Soo Kim
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Materials Science, Multidisciplinary
Dao Phuong Trang Duong, Thuan Doan Van, Phat Bui Dai, Thao Nhi Nguyen Tran, Thai Ngoc Uyen Nguyen, Thi Cao Minh, Tri Khoa Nguyen, Yong-Soo Kim, Viet Pham Van
MATERIALS RESEARCH EXPRESS
(2019)
Article
Chemistry, Multidisciplinary
Ha Xuan Linh, Ngo Thi Thu, Tran Quoc Toan, Do Tra Huong, Bui Thanh Giang, Huynh Ky Phuong Ha, Hong-Tham T. Nguyen, N. T. K. Chung, Tri Khoa Nguyen, Nguyen Thanh Hai
JOURNAL OF CHEMISTRY
(2019)
Article
Chemistry, Multidisciplinary
Anh Duc Nuyen, Tri Khoa Nguyen, Chinh Tam Le, Sungdo Kim, Farman Ullah, Yangjin Lee, Sol Lee, Kwanpyo Kim, Dooyong Lee, Sungkyun Park, Jong-Seong Bae, Joon Jang, Yong Soo Kim
Article
Chemistry, Analytical
Tri Khoa Nguyen, Sangmin Jeong, Jong-Sang Youn, Seungbae Ahn, Ki-Hun Nam, Cheol-Min Park, Ki-Joon Jeon
Summary: This study investigates the performance of MoS2-based gas sensors at different temperatures, revealing that the sensor has better response and detection limit at higher temperatures. However, it is also found that there are line damages on the sensor at 200 degrees Celsius, affecting its recovery ability.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Nanoscience & Nanotechnology
Hien Duy Mai, Sangmin Jeong, Tri Khoa Nguyen, Jong-Sang Youn, Seungbae Ahn, Cheol-Min Park, Ki-Joon Jeon
Summary: This study successfully developed a sensing approach using Pd/MoS2 heterostructures that can detect low-concentration hydrogen at room temperatures, with performance enhanced three-fold under visible light illumination. Photoactivation also enabled excellent sensing reversibility and reproducibility in the obtained sensor.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Correction
Chemistry, Multidisciplinary
Xuan Linh Ha, Thi Thu Ngo, Quoc Toan Tran, Tra Huong Do, Bui Thanh Giang, Huynh Ky Phuong Ha, Hong-Tham T. Nguyen, N. T. K. Chung, Tri Khoa Nguyen, Nguyen Thanh Hai
JOURNAL OF CHEMISTRY
(2022)
Article
Chemistry, Physical
Anh Duc Nguyen, Thi Hue Pham, Tri Khoa Nguyen, Hamid Ullah, Zeeshan Tahir, Yun Chang Park, Jongwoo Park, Joon Ik Jang, Young Han Shin, Yong Soo Kim
ACS APPLIED ENERGY MATERIALS
(2020)
Article
Chemistry, Physical
Ming-Yi Chen, Ngoc Thanh Thuy Tran, Ahmed Abubakar Alao, Wen-Dung Hsu
Summary: This study demonstrates the significance of surface Pt atom arrangement for the efficiency of ORR in PEMFCs and reveals the correlation between Pt-Pt average distance and O2 dissociation barrier. Furthermore, the study discovers a robust correlation between the level of the catalyst's d-band center and O2 adsorption energy. High-entropy alloy substrates provide potential for controlling Pt arrangement and O2 dissociation barrier.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Eduardo C. Atayde Jr, Babasaheb M. Matsagar, Yu-Cheng Wang, Kevin C. -W. Wu
Summary: This study presents the first application of an acidic MOF, Sulfated MOF-808, in catalyzing the HAA reactions of furan oligomers for the production of biofuel precursors. The catalyst showed high yield, selectivity, and recyclability, making it versatile for different starting materials.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Maria do Carmo Rangel, Francieli Martins Mayer, Soraia Jesus de Oliveira, Sergio Gustavo Marchetti, Fabricio Luiz Faita, Doris Ruiz, Giovanni Saboia, Mariana Kieling Dagostini, Jonder Morais, Maria do Carmo Martins Alves
Summary: This study developed a new catalyst by investigating the effect of magnesium on the catalytic properties of hematite in ethylbenzene dehydrogenation. The catalyst showed important differences in activity, selectivity, and stability, making it a promising candidate for commercial applications.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Yanjun Li, Qian Wang, Hui Tian, Mingyuan Zhu, Yuanyuan Liu
Summary: A novel strategy using microwave-assisted precipitation was proposed to prepare defective CsH3PMo11VO40 catalyst for the oxidation of methacrolein to methacrylic acid. Microwave treatment accelerates crystallization, increases vanadyl species content, and forms defective Keggin structures, thereby enhancing the oxidation capacity of the catalyst.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Rajeshwari Athavale, Sailee Gardi, Fatima Choudhary, Dayanand Patil, Nandkishor Chandan, Paresh More
Summary: In this study, a novel acidic ionic liquid catalyst was prepared and used for the synthesis of bis-indolyl methane derivatives. The catalyst exhibited short reaction times, easy purification, and reusability.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Masatomo Hattori, Takato Hattori, Masakuni Ozawa
Summary: Cu-added gamma-Al2O3 catalysts were prepared with varying Cu loadings and the effects of copper oxidation states on catalytic activity were investigated. The results showed that the addition of copper increased the catalyst activity, but excessive copper loading decreased catalytic activity. XRD and TEM analysis indicated the formation of a solid solution of copper oxide species on the surface of gamma-Al2O3. XAS and TPR data demonstrated variations in copper oxidation states among the catalysts.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Liwei Fang, Shiyang Niu, Shengsen Wang, Yiqing Lu, Yuanhui Cheng
Summary: In this study, PtNi alloy on nitrogen-doped carbon and SnO2 dual-support was designed to modulate the metal-support interaction, resulting in improved catalytic activity and stability for oxygen reduction reaction. The SnO2/PtNi/NC catalyst exhibited a strongly coupled interface, enhanced electron transfer, and higher half-wave potential compared to PtNi/NC and commercial Pt/C.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Shohei Harada, Duanxing Li, Kenta Iyoki, Masaru Ogura
Summary: This study investigates the catalytic performance of a composite catalyst composed of ZnZrOX and H-zeolite for the hydrogenation of CO2. The deactivation of the composite catalyst is influenced by ion exchange of Zn2+ and/or coke, with their effects differing based on the zeolite structure. Separating the grains of the composite catalyst can prevent deactivation.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Laura Proano, Christopher W. Jones
Summary: In this study, NiGa alloy particles supported on CeO2, ZrO2, and ZrO2-CeO2 solid solutions were prepared and characterized. The nature of the support was found to have a significant influence on the catalyst's activity and selectivity, with the crystalline structure of ZrO2 having the greatest impact. Pure ZrO2 showed the highest methanol selectivity and CO2 conversion at high Zr:Ce ratios. In equimolar and Ce-rich conditions, basic sites and oxygen vacancies were found to be the key parameters affecting methanol production.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Liyan Zhang, Yinze Yang, Leilei Zhou, Fengyu Zhao, Haiyang Cheng
Summary: 1,6-Hexamethylenediamine was successfully synthesized via the reductive amination of 1,6-hexanediol using a Ru/PRL(x)-Al2O3 catalyst. The highly dispersed and anchored Ru species, formed by 1,10-phenanthroline (PRL), played a crucial role in the catalytic reaction. The formation of new acid-base pairs, electron deficient Ru species, and smaller nanoparticles contributed to the improved catalytic performances of the Ru/PRL-Al2O3 catalyst.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Anita Horvath, Miklos Nemeth, Andrea Beck, Gyorgy Safran, Valeria La Parola, Leonarda Francesca Liotta, Gregor Zerjav, Matevz Roskaric, Albin Pintar
Summary: This study investigates the catalytic and structural changes caused by the addition of 0.25 wt% indium in a 3% Ni/CeO2-Al2O3 catalyst prepared by impregnation method. The results show that the addition of indium can decrease the activity of the catalyst, but it improves its stability and reduces coking.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Ankush Kularkar, Vaibhav Vilas Khedekar, Sachin D. Chaudhari, Mudavath Ravi, Sadhana S. Rayalu, Penumaka Nagababu
Summary: Efficiently addressing the challenges of photocatalytic CO2 reduction to CH3OH is crucial. This study developed Zn-BTC MOF and its composites with CaIn2S4, achieving highly efficient and robust photocatalytic CO2 reduction to CH3OH under ambient conditions, using H2O2 as the hydrogen source. Among the composites, ZMCIS4 demonstrated excellent performance with a CH3OH evolution of 49100 μmol/g.cat and a quantum efficiency of approximately 78.41%. The enhanced performance was attributed to the production of nascent hydrogen atoms (H center dot) through the photo-splitting of H2O2 on the ZMCIS surface.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Dan Liu, Yudong Li, Chengyu Wang, Haiyue Yang, Rong Wang, Shujun Li, Xiaohui Yang
Summary: In this study, a self-supporting three-dimensional porous Co3O4 nanobelt array decorated on nickel foam (P-Co3O4 -NBA@NF) electrode with numerous active sites was successfully constructed for the oxidation of 5-Hydroxymethylfurfural (HMF) to 2,5-furan dicarboxylic acid (FDCA). The P-Co3O4 -NBA@NF electrode demonstrated high conversion efficiency, selectivity, and Faraday efficiency, as well as remarkable long-term stability. This research provides a promising electrocatalyst for biomass conversion.
APPLIED CATALYSIS A-GENERAL
(2024)
Article
Chemistry, Physical
Yimin Li, Enggah Kurniawan, Fumiya Sato, Takayoshi Hara, Yasuhiro Yamada, Satoshi Sato
Summary: In this study, several silica-alumina catalysts modified with Ag were examined for the dehydration of 1,3-butanediol to 1,3-butadiene. Among them, an amorphous silica-alumina catalyst (SAL-3) modified with Ag showed the highest improvement in catalytic activity and stability when operated in H2 flow. The generation of reversible acid sites was found to be the reason behind the enhanced activity and stability of this Ag/SAL-3 catalyst. The effects of various parameters on the catalytic activity of Ag/SAL-3, such as reaction temperature, contact time, Ag content, and carrier gas, were investigated.
APPLIED CATALYSIS A-GENERAL
(2024)
