Article
Chemistry, Physical
Sarvajith Malali Sudhakara, Mruthyunjayachari Chattanahalli Devendrachari, Fasiulla Khan, Sheela Thippeshappa, Harish Makri Nimbegondi Kotresh
Summary: In this study, a polyaniline-linked tetra amino cobalt phthalocyanine surface functionalized ZnO hybrid nanomaterial was successfully fabricated for highly sensitive electrochemical detection of nitrites. The sensor demonstrated superior electrocatalytic activity, selectivity, sensitivity, and a low limit of detection compared to other systems. This exceptional electrocatalytic performance can be attributed to the synergetic effect of the high surface area of nanosized ZnO, conducting polyaniline, and metal-centered supramolecular tetra amino cobalt phthalocyanine.
SURFACES AND INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Changle Li, Hui Qiao, Yundan Liu, Zongyu Huang, Siwei Luo, Ziyu Wang, Xiang Qi
Summary: In this work, SnSe nanosheets (NSs) were prepared via liquid exfoliation and hybridized with reduced graphene oxide (RGO) using a simple hydrothermal method. The SnSe/RGO hybrid exhibited superior performance in hydrogen evolution reaction (HER) and charge transfer compared to SnSe NSs. Furthermore, the hybrid showed excellent HER performance in 1.0 M H2SO4, with an overpotential of -298.79 mV (vs. RHE) at a current density of 10 mA/cm2 and a Tafel slope of 97.56 mV/dec. Moreover, the SnSe/RGO hybrid showed excellent durability, maintaining working current for 10 h. Overall, the SnSe/RGO hybrid is a promising and cost-effective electrocatalyst.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Engineering, Environmental
Theophile Niyitanga, Haekyoung Kim
Summary: In this study, a trimetallic CuxMox/Co1_xO nanoparticle catalyst grown on reduced graphene oxide was fabricated for the oxygen evolution reaction (OER). The catalyst exhibited outstanding electrochemical activity for the OER due to the conductive network provided by reduced graphene oxide and the additional active sites from the Cu and Mo dopants. This study provides a novel strategy for the development of efficient OER electrocatalysts for large-scale applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Krishnakanth Sada, Ritambhara Gond, Neha Bothra, Swapan K. Pati, Prabeer Barpanda
Summary: This study reports a new pyrophosphate material, K2CoP2O7, as a cathode material for secondary zinc-air batteries with efficient oxygen evolution and reduction activities. The nanoscale K2CoP2O7 prepared by autocombustion exhibited superior performance among all phosphate-based electrocatalysts, surpassing the commercial RuO2 in oxygen evolution reaction (OER) activity. First-principles calculations revealed that the bifunctional activity is attributed to the Co active site on the most stable (110) surface. This nanostructured pyrophosphate can serve as an economic bifunctional catalyst for zinc-air batteries.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Jing Dong, Tingting Sun, Yixin Zhang, Hong Zhang, Songrang Lu, Dongmei Hu, Jianfeng Chen, Lianbin Xu
Summary: By the synergistic interaction of Ni and Co, mesoporous structure of NiCo alloy, and the optimized combination of mesoporous NiCo with rGO, the optimal MNi63Co37/rGO(5) catalyst shows excellent electrocatalytic performance for hydrogen evolution reaction (HER) with a low overpotential of 115 mV, current density of 10 mA cm(-2), Tafel slope of 45 mV dec(-1), and high durability in alkaline solution.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Analytical
Sanjeev Kumar, Anshul Kumar Sharma, Manreet Kaur Sohal, Davinder Pal Sharma, A. K. Debnath, D. K. Aswal, Aman Mahajan
Summary: By anchoring F16CuPc molecules onto rGO sheets, a room-temperature chemiresistive sensor capable of efficiently detecting chlorine gas has been developed, with a significant improvement in gas sensing characteristics confirmed through electrochemical impedance spectroscopy.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Applied
Paramita Banerjee, G. P. Das, Ranjit Thapa
Summary: This study investigates the role of S-dopant and S-linker in enhancing the catalytic efficiency of graphene quantum dots for oxygen reduction reactions. It is found that controlling the dopant position and configuration, increasing the S doping concentration, and utilizing S-linkers can effectively improve the ORR activity.
Article
Chemistry, Analytical
Bo Zhu, Tongtao Wan, Jing Li, Chuizhou Meng, Xiaohang Du, Guihua Liu, Yuming Guan
Summary: In this study, a NiCo@rGO bifunctional catalyst was successfully prepared, which exhibited high catalytic activity and electronic conductivity due to its large specific surface area and abundant pore structure. It showed excellent performance in oxygen evolution/reduction reactions and zinc-air batteries.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Guangwu Yang, Mengyu Lu, Yuanzhuang Cheng, Hao Liu, Jingshun Shen, Liangbin Li, Wenjie Wang, Yanli Chen, Xiyou Li
Summary: This study demonstrates for the first time that zinc oxide (ZnO) can effectively catalyze the conversion of acetylene into graphene and significantly reduce the growth temperature. Through the use of ZnO nanoparticles as catalyst and template, super thin and defect rich graphene shell (TD-GS) is successfully prepared. By adjusting the growth conditions or process, new carbon structures can also be easily achieved.
Article
Chemistry, Multidisciplinary
R. Sundaresan, V. Mariyappan, T. -w. Chen, S. -m. Chen, M. Akilarasan, M. A. Alsaigh, M. A. Ali, M. S. Elshikh, J. Yu
Summary: To address the health risks posed by Bisphenol A (BA), researchers developed a selective electrochemical sensor using reduced graphene oxide (RGO) wrapped barium oxide/molybdenum oxide (BMO) nanorod as an efficient electrocatalyst. This sensor demonstrated excellent selectivity, stability, and sensitivity for BA detection, making it a valuable tool for rapid and sensitive detection of environmental samples.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Chandan Kumar, Ashish Gupta, Pinky Saharan, Mandeep Singh, S. R. Dhakate
Summary: This study optimized the processing parameters to synthesize graphene oxide and reduced graphene oxide from petroleum coke. The results show that petroleum coke has the potential to replace expensive natural graphite, and the obtained reduced graphene oxide demonstrates excellent electrocatalyst properties.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Gil-Ryeong Park, Seung Geun Jo, Anuraj Varyambath, Jeonghyun Kim, Jung Woo Lee
Summary: Nitrogen-doped reduced graphene oxide with Pd4.7Ru nanoparticles showed efficient catalytic activity in oxygen reduction reaction, with pyridinic nitrogen atoms acting as anchoring sites for particle bonding. The optimal composition of Pd and Ru at 4.7:1 ratio exhibited high durability and excellent ORR activity, making it a potential candidate for fuel cell applications.
Article
Chemistry, Physical
Peng Long, Mengmeng Qin, Baocai Zhang, Qijing Liu, Fulai Zhao, Zijie Wu, Zhengyang Ni, Huitao Yu, Feng Li, Hao Song, Yiyu Feng, Wei Feng
Summary: By synthesizing CoFe-layered double hydroxides (LDH) on partially-reduced graphene oxide (p-rGO) via electrostatic interaction, the cathodic reduction efficiency of microbial fuel cells (MFCs) can be improved, and the power generation capacity can be increased.
Article
Chemistry, Applied
Shuai Wang, Xian-Liang Song
Summary: Catalyst support technology plays a crucial role in improving catalytic activities. In this study, ORR catalysts supported by composite materials were developed, showing excellent electrochemical catalytic performance. The synergistic effects between super-conducting carbon black and tetra-13-(8-quinolinoxy) iron phthalocyanine-loaded reduced graphene oxides contributed significantly to the enhanced catalytic activities.
Article
Chemistry, Physical
A. S. R. A. Subki, M. H. Mamat, M. Z. Musa, M. H. Abdullah, I. B. Shameem Banu, N. Vasimalai, M. K. Ahmad, N. Nafarizal, A. B. Suriani, A. Mohamad, M. D. Birowosuto, M. Rusop
Summary: This work presents a nanocomposite-based humidity sensor that achieves enhanced sensing performance at room temperature by incorporating reduced graphene oxide (rGO) into zinc oxide nanostructured powder (ZNP) nanoparticles. The nanocomposite-based humidity sensor was fabricated using cellulose filter paper and clear paper glue through a brush printing method. Various characterization techniques were employed to investigate the properties of the nanocomposites. The sensor showed the highest sensitivity and sensing response when loaded with 1.0 wt% of rGO.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)