Article
Materials Science, Ceramics
Qiushi Huang, Chuanhua Li, Yuankun Tu, Yu Jiang, Ping Mei, Xuemin Yan
Summary: The study focuses on designing and synthesizing efficient catalysts for fuel cells, demonstrating that CoFe2O4/CNTs/FA composites have excellent bifunctional catalytic activity for ORR and OER with improved methanol tolerance and durability compared to standard catalysts like Pt/C and RuO2. This shows potential for simple compound strategies to enhance electrochemical properties.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Hong Zhu, Yajie Dai, Shuxian Di, Lin Tian, Fanghui Wang, Zhiqian Wang, Yanghui Lu
Summary: The research focuses on synthesizing low-loading Pt-based catalysts with high stability and excellent catalytic performance for proton exchange membrane fuel cells. In this study, Cu is incorporated into a Co-based zeolitic imidazolate framework (ZIF) to form a carrier, and an N-doped low Pt-loading PtCuCo/NC alloy catalyst is synthesized. The incorporation of Cu forms more metal-N bonds and increases the N-doping content, while the porous structure of ZIF allows better dispersion of Pt/Pt alloy particles and exposes more active sites for the oxygen reduction reaction. PtCuCo/NC exhibits good catalytic activity and superior performance in electrochemical and single-cell tests. This study provides a new idea for improving Pt-based fuel cell catalysts.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jean-Felix Boue, Cedric Espinet, Simon Amigues, David Mesguich, David Cornu, Yaovi Holade, Julien Cambedouzou, Christophe Laurent
Summary: This study presents the proof-of-concept of spark plasma sintered (SPS) consolidated mesoporous composite catalytic electrodes for the electrocatalytic hydrogen evolution reaction (HER) in alkaline media. The optimized electrode exhibited stable overpotential and controllable physical and catalytic properties. This work provides a new strategy for synthesizing robust electrocatalytic electrodes for the hydrogen evolution reaction.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Usman Salahuddin, Naseem Iqbal, Tayyaba Noor, Saadia Hanif, Haider Ejaz, Neelam Zaman, Safeer Ahmed
Summary: The study tested nano-porous carbon structures derived from zeolitic imidazolate framework (ZIF-67) hybridized with MnO2 as cathode material for fuel cells. Characterization included XRD, SEM, and EDX, with cyclic voltammetry, EIS, and Chronoamperometry showing improved performance for oxygen reduction reaction, indicating potential for fuel cell applications.
Article
Chemistry, Inorganic & Nuclear
Wenhao Liao, Xianfeng Tong, Yali Zhai, Haojiang Dai, Yingyan Fu, Min Qian, Geng Wu, Tianyun Chen, Qinghua Yang
Summary: This study successfully synthesized carbon nanotubes with a hollow polyhedral structure. The unique structure provides stability and facilitates mass and charge transfer. The resulting CoP/CNTHPs exhibited excellent bifunctional catalytic activity in hydrogen and oxygen evolution reactions and electrocatalytic water splitting, along with remarkable stability.
DALTON TRANSACTIONS
(2022)
Article
Engineering, Environmental
Kousik Bhunia, Elumalai Vijayakumar, Nirmal Prashanth Maria Joseph Raj, Keyru Serbara Bejigo, Dhanasekar Kesavan, Sang -Jae Kim
Summary: The present study demonstrates the effectiveness of a noble metal-free cobalt nanoparticle-integrated nitrogen-doped carbon nanotubes catalyst for oxygen reduction reaction in Direct Methanol Fuel Cells (DMFCs). The catalyst showed superior activity and performance compared to conventional platinum catalysts. The study also showcased the applicability of the catalyst-integrated DMFC in powering portable electronics.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
T. V. M. Sreekanth, X. Wei, K. Yoo, J. Kim
Summary: In this study, Co3O4 catalyst was synthesized by annealing ZIF-67 and characterized for its properties. The results showed that compared to ZIF-67, the ZIF-67-derived Co3O4 catalyst exhibited lower Tafel-slope value and higher electrocatalytic performance in urea electro-oxidation.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Physical
Jinwei Lu, Yu Han, Lin Yao, Yanming Yu, Jun Ma, Tao Yang, Jie Hu, Hao Huang
Summary: Electrochemical N2 fixation shows promise for ammonia synthesis, but the competitive hydrogen evolution reaction (HER) reduces its efficiency. Therefore, simple modification methods are needed to improve the catalyst's selectivity for NRR in aqueous solutions. In this study, the addition of the HER attractant (MoS2) was proposed to significantly enhance the NRR activity of Co-NC derived from ZIF-67, resulting in the preparation of a Co-NC/MoS2 composite. This composite exhibited excellent NRR electrocatalytic ability, with a NH3 yield of 54.66 μg·h-1·mg-1 cat and a Faradaic efficiency of 34.49% in water medium at ambient conditions.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Xiaoli Yang, Jiali Gu, Chenhong Liu, Zhengyu Bai, Lin Yang
Summary: This study successfully obtained ZIF-67-400 with excellent oxygen reduction reaction (ORR) performance using low-temperature pyrolysis. The material exhibits good stability and catalytic activity, comparable to commercial Pt/C. By eliminating hydrocarbon groups in the ligands, the active sites are exposed and coordinated with the intrinsic porosity, improving the catalytic performance. This work provides a new solution for activating the electrocatalytic performance of metal-organic frameworks through low-temperature annealing.
FRONTIERS IN CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Anand Parkash, Nizamuddin Solangi, Junejo Aurangzeb, Irfan Ahmed Abbasi, Muhammad Ali Inarn, Suhail Ahmed Soomro
Summary: This study has successfully developed a nitrogen-doped carbon stabilized Pt-Co bimetallic nanoparticle (Pt@Co-NC-900) catalyst with low platinum content, high catalytic activity, and long-term durability. This new approach provides a cost-effective and multifunctional catalyst using an N-containing MOF template.
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Ruiying Wang, Mengran Lou, Jie Zhang, Zhipeng Sun, Zhiqian Li, Pengtao Wen
Summary: The study presents a new method for constructing advanced electrocatalysts for MOR using Co-NCNT-HPC derived from MOFs as a support for Pt catalysts. The Pt/Co-NCNT-HPC800 sample shows enhanced mass activity and stability in methanol oxidation reaction, demonstrating the potential for commercial applications in DMFCs.
Article
Chemistry, Inorganic & Nuclear
Lei Ye, Yeqing Zhang, Limin Wang, LinXiu Zhao, Yaqiong Gong
Summary: A self-supporting, binder-free electrocatalyst was successfully prepared in this study, exhibiting excellent performance and stability for the oxygen evolution reaction under alkaline conditions. This provides a feasible strategy for the rapid preparation of low-cost and efficient electrocatalysts in alkaline media.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Physical
Yang Zang, Hui Luo, Hang Zhang, Huaiguo Xue
Summary: In this study, three-dimension hierarchical PNT-interconnected nickel cobalt-layered double hydroxide nanocages were successfully synthesized to construct supercapacitors, achieving excellent electrochemical performance. Additionally, an asymmetric supercapacitor showed outstanding energy density and cycling stability, demonstrating promising prospects for high-performance supercapacitors.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Nafiseh Mohammadi-rad, Mehdi D. Esrafili, Jaber Jahanbin Sardroodi
Summary: In this study, Fe-doped porous BN nanosheet is proposed as an efficient and noble-metal free electrocatalyst for the oxygen reduction reaction (ORR) process in fuel cells. The ORR process on this electrocatalyst prefers a direct four-electron route.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Xinfu He, Liaobo Chang, Hongju Wu, Guoyang Liu, Yating Zhang, Anning Zhou
Summary: The low conductivity and porosity of ZIF-67-based catalysts for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) are addressed in this research. A highly active bifunctional catalyst, F-N/FeCoNC900, with a three-dimensional interconnected porous structure and high electrical conductivity, was successfully prepared by co-doping Fe, F, and N on the precursor ZIF-67. F-N/FeCoNC900 exhibits superior ORR and OER performance compared to commercially available Pt/C catalysts.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Energy & Fuels
Muhammad Arslan Raza, Naseem Iqbal, Tayyaba Noor, Zahid Ali Ghazi
Summary: In order to enhance the electrochemical performance and lifespan of supercapacitor electrode materials, scientists are developing hierarchical nanostructures. In this study, a hierarchically structured NiMn-LDH@MnCo2S4 with a flower-like morphology was synthesized on nickel foam using a hydrothermal method. The hierarchical structure exhibited improved electrochemical activity. The resulting hybrid electrode, NiMn-LDH@MnCo2S4 Faradaic, showed a specific capacity of 341.1 mAh g-1 (1228 C g-1) at a current density of 2 A g-1, surpassing that of the pristine MnCo precursor and MnCo2S4 with specific capacities of 37.5 mAh g-1 and 150.6 mAh g-1 (542.2 C g-1), respectively, at the same current density. Furthermore, the hybrid electrode exhibited exceptional cyclic stability of 95%.
Review
Chemistry, Multidisciplinary
Najla Javed, Tayyaba Noor, Naseem Iqbal, Salman Raza Naqvi
Summary: Due to odd weather patterns and post-pandemic economic recovery, there has been an increase in global demand for oil, coal, and natural gas. However, the excessive usage of these fuels has led to depletion of their reserves and contributed to global warming and power shortage problems. In light of this, it is crucial to focus on and promote the use of renewable energy sources for power production and storage.
Article
Chemistry, Physical
Neelam Zaman, Naseem Iqbal, Tayyaba Noor
Summary: A simple approach using metal organic framework and nickel foam as an electrode for catalyzing methanol oxidation is reported. The NMC-MOF/NF catalysts showed the highest current density response and efficient catalytic oxidation of carbon monoxide. The NMC-MOF/NF electrode retained 100% of its catalytic activity after 20,000 seconds in methanol oxidation. This method enables the generation of energy-efficient products, such as hydrogen, from methanol.
Article
Materials Science, Multidisciplinary
Arif Ullah Khan, Tayyaba Noor, Naseem Iqbal, Neelam Zaman, Zakir Hussain
Summary: This study reports the successful adsorption of carbon dioxide gas using ZIF-8 and its g-C3N4 based composites at a temperature of 45°C and 0-15 bar pressure. The samples were characterized using different techniques, and the results show good structural and morphological properties. The ZIF-8@3wt% g-C3N4 composite exhibits the highest adsorption capacity of 315 mg/g.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Engineering, Electrical & Electronic
Muhammad Ali Tariq, Nadia Shahzad, Abdul Sattar, Tanzeela Yousaf, Ahad Hussain Javed, Naseem Iqbal, Muhammad Imran Shahzad
Summary: CuSCN is a highly stable, easy to fabricate, and efficient hole transport layer. Researchers are using various bilayers to overcome the degradation caused by polar solvents on organic absorber layers. In this study, a bilayer of CuSCN with an ammonia-based aqueous solvent was proposed and exhibits improved surface roughness values and light transmittance. The bilayers also demonstrate good hydrophobic properties and can function well on different architectures. The successful demonstration of these bilayers in Photoluminescence analysis shows their potential in fabricating highly efficient and stable perovskite solar cells.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Review
Materials Science, Multidisciplinary
Muhammad Mudassar Aslam, Tayyaba Noor, Naseem Iqbal
Summary: Electrocatalysis is crucial for achieving a sustainable energy economy by facilitating redox reactions for the generation of clean fuels and chemicals from various resources. The widespread implementation of electrocatalysts is hindered by the lack of readily available catalysts that are economically viable, long-lasting, and efficient. MXenes, a family of emerging 2D materials, exhibit exceptional properties as electrocatalysts in metal-air batteries due to their hydrophilicity, high electrical conductivities, and tunable surface properties.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Multidisciplinary Sciences
Sana Zainab, Muhammad Azeem, Saif Ullah Awan, Syed Rizwan, Naseem Iqbal, Jamshaid Rashid
Summary: In this report, we developed different fabrication parameters to tailor the optical bandgap of graphene oxide (GO) nanosheets for electronic industry. We reduced the bandgap of GO nanosheets by optimizing the oxidation level and fabricating 2-dimensional nanocomposites containing GO/Iron-oxide. The reduction in bandgap and the interaction among the constituents of the nanocomposite make 5%-iron-oxide/95%-GO nanosheet sample a potential candidate for electronic devices.
SCIENTIFIC REPORTS
(2023)
Article
Energy & Fuels
Muhammad Waqas Nazar, Naseem Iqbal, Majid Ali, Hassan Nazir, M. Zain Bin Amjad
Summary: To improve the safety of Li-ion batteries, understanding their behavior under high temperature is crucial. In this study, charge and discharge experiments were conducted on battery packs to evaluate the impact of thermal management on battery performance. By analyzing the temperature distribution among the cells under different conditions and using phase change material, it was found that thermal management significantly affects the battery pack's performance and safety. Active cooling (air cooling) and passive cooling (using PCM) were both effective methods to reduce the temperature difference compared to ambient temperature, with passive cooling showing the most promising results.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Iqra Shaukat, Naseem Iqbal, Tayyaba Noor, Maryam Raza, Rabia Ahmad
Summary: In this study, CoSe/NC composites were synthesized by varying the amount of selenium powder while keeping the mass ratio of ZIF-67 constant. CoSe-1 showed excellent electrochemical performance with the highest specific capacitance and cyclic capability.
Article
Chemistry, Multidisciplinary
Rimsha Mehek, Naseem Iqbal, Tayyaba Noor, Yuanshen Wang, Alexey Y. Ganin
Summary: This study successfully prepared a composite material by carbonization of V-MIL-101, in which vanadium oxide nanoparticles and nanoporous carbon network were embedded, significantly improving the electrochemical performance of the material as a cathode in an aqueous Zn-ion battery system. The loading of manganese oxide further stabilized the composite material and improved the rate capability of the cathode material in the aqueous zinc ion battery. The MnO2@NVC composite cathode material exhibited a capacity of 299 mAh/g at a 0.1C rate for 100 cycles, benefiting from the synergistic effect of the high conductivity of vanadium oxide nanoparticles and the suitable voltage of MnO2. The materials showed superior capacity retention and better cycling performance compared to unmodified vanadium oxide nanoparticles on a carbon substrate as cathode material. Comparative morphological and electrochemical studies confirmed the improved performance, suggesting that the vanadium oxide nanoparticles anchored on a high surface area carbon network intertwined with manganese oxide nanowires provide enhanced conductivity.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Faiza Jilani, Muhammad Husnain, Faisal Nawaz, Muhammad Ali Mohsin, Naseem Iqbal, Javed Iqbal, Ahmed Abd El-Fattah
Summary: The sensing of bio-molecules and toxic compounds has been a long-term interest. However, the similar reduction potential values and diverse chemical nature of these analytes make the simultaneous and accurate determination challenging. In this study, a transition metal oxide/graphitic-carbon nitride composite was successfully fabricated, which exhibited suitable band-gap formation and facilitated the reduction of dopamine and hydrazine at different potentials. The characterization of the composite material was conducted by SEM-EDX, XRD, FTIR, and electro-chemical analysis. The sensor response analysis revealed that the as-prepared material showed superior LOD for hydrazine compared to dopamine.
Article
Materials Science, Multidisciplinary
Saad Saud Ali Shah, Saif Ullah Awan, Sana Zainab, Hassan Tariq, M. Bilal Riaz, Azhar Ul-Haq, Nadia Shahzad, Naseem Iqbal
Summary: In this study, Cu-doped ZnS thin films with different doping concentrations were fabricated on glass substrates using the spin coating technique. Various characterization techniques including X-ray diffraction, scanning electron microscopy, energy dispersive X-ray analysis, and Fourier transform infrared spectroscopy were employed to analyze the thin films. The results showed that Cu-doped ZnS thin films had a single phase wurtzite structure, but the formation of secondary phases was observed in the 6% doped samples. Cu doping led to a decrease in the energy band gap of the thin films, which could be attributed to the existence of Cu-3d states in the upper part of the valence band.
Article
Chemistry, Multidisciplinary
Sadia Khan, Tayyaba Noor, Naseem Iqbal, Erum Pervaiz, Lubna Yaqoob
Summary: The synthesis and characterization of ZIF-67, g-C3N4, and their composite for electrochemical water-splitting application were investigated. The combination of ZIF-67 with g-C3N4 improved the electrochemical kinetics. The 3 wt% g-C3N4@ZIF-67 composite exhibited superior catalytic activity for water splitting with low overpotential values and stable performance. It is suggested to be a promising candidate for electrochemical water-splitting application.
Article
Engineering, Environmental
Haroon Hayat, Tayyaba Noor, Naseem Iqbal, Rabia Ahmed, Neelam Zaman, Yan Huang
Summary: For metal air batteries, the synthesis of efficient non-precious metal-based electrocatalysts is crucial. In this study, Cu MOF and its g-C3N4 based composites were prepared and characterized. The Cu MOF and g-C3N4-based electrode synergistically enhanced the electrochemical process, improving electron transport and charge transfer efficiency. The composite Cu MOF (5 wt%) showed high stability and improved performance in oxygen reduction reaction (ORR) analysis.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Asif Khan, Naseem Iqbal, Tayyaba Noor, Neelam Zaman, Shoaib Raza Khan
Summary: This study focuses on the utilization of waste low-density polyethylene (LDPE) plastic by pyrolysis, using fuel oil fly ash catalyst to convert it into valuable fuels. The findings suggest that this waste can be commercially converted into oil, addressing environmental and energy crises.
SUSTAINABLE ENERGY & FUELS
(2023)