Article
Materials Science, Multidisciplinary
Mingxiong Lin, Weishan Jiang, Chengkai Yang, Zanyong Zhuang, Yan Yu
Summary: The study reports a robust photoreversible color switching system, where lattice matching enables bottom-up oriented assembly between MOFs and INCs. The TiO2/PB paper derived from this system is considered one of the best light-printing papers in literature, with high resolution and the ability to be repeatedly written for over 100 times.
SCIENCE CHINA-MATERIALS
(2022)
Article
Physics, Multidisciplinary
Vishnu V. Jaiswal, D. Haranath
Summary: A unique long afterglow phosphor powder was successfully synthesized and utilized in ink production to emit bright blue light visible for over 4 hours in the dark. This technology allows for the creation of concealed patterns on goods and certificates, while also being used to identify counterfeit products, prevent currency counterfeiting, and reduce excessive UV radiation exposure.
Article
Chemistry, Physical
Zhiqin Deng, Li Li, Yuchun Ren, Chaoqun Ma, Jie Liang, Kai Dong, Qian Liu, Yonglan Luo, Tingshuai Li, Bo Tang, Yang Liu, Shuyan Gao, Abdullah M. Asiri, Shihai Yan, Xuping Sun
Summary: In this study, Cu-doped TiO2 was reported as an efficient electrocatalyst for sustainable electrochemical synthesis of hydrogen peroxide. The Cu doping induced lattice distortion and the formation of oxygen vacancies and Ti3+ species, leading to improved selectivity and yield of hydrogen peroxide. Theoretical calculations revealed that Cu doping not only enhanced the electrical conductivity of TiO2, but also facilitated the oxygen reduction reaction process.
Article
Nanoscience & Nanotechnology
Fahao Ma, Qian Wu, Mu Liu, Liren Zheng, Fengxia Tong, Zeyan Wang, Peng Wang, Yuanyuan Liu, Hefeng Cheng, Ying Dai, Zhaoke Zheng, Yuchen Fan, Baibiao Huang
Summary: Surface engineering plays a crucial role in enhancing the electrocatalytic performance of NiFe-PBA-F catalyst for oxygen evolution reaction (OER). The controlled removal of ligands through surface fluorination provides a pathway for maintaining the framework structure of NiFe-PBA, leading to the creation of more active sites for F-doped NiFeOOH. The lattice oxygen oxidation mechanism proposed for NiFe-PBA-F contributes to a better understanding of the reconstruction process and the OER mechanism.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Ceramics
Juanjuan Ge, Gaohui Du, Abul Kalam, Xiang Bi, Shukai Ding, Qingmei Su, Bingshe Xu, Abdullah G. Al-Sehemi
Summary: Black TiO2 nanoparticles synthesized by calcination in argon show improved cycling stability and electrochemical activity for lithium-oxygen batteries, with reduced charging voltage and decreased side reactions and polarization, enhancing the overall cycling performance of the battery.
CERAMICS INTERNATIONAL
(2021)
Article
Environmental Sciences
Rokhsareh Akbarzadeh, Negin Farhadian, Anvar Asadi, Tahereh Hasani, Setaya Salehi Morovat
Summary: A facile method to produce black TiO2 with improved light absorption in the visible and infrared regions was developed in this study. The synthesized Bi-V co-doped black TiO2 showed high photocatalytic activity in reducing Cr(VI) under visible light irradiation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Chemistry, Physical
Li-Na Chen, Su-Heng Wang, Peng-Yang Zhang, Zhi-Xin Chen, Xiao Lin, Hui-Juan Yang, Tian Sheng, Wen-Feng Lin, Na Tian, Shi-Gang Sun, Zhi-You Zhou
Summary: The study demonstrates the deposition of Ru nanoparticles on reduced TiO2 interface with oxygen vacancies to achieve superior HER performance. The high electrocatalytic activity of Ru/r-TiO2 is attributed to the promotion of water dissociation and weakening OH adsorption by reduced TiO2, facilitating the conversion of water to H2. This work provides an efficient strategy for designing high-performance HER catalysts.
Article
Multidisciplinary Sciences
Mihyang Sheen, Yunhyuk Ko, Dong-uk Kim, Jongil Kim, Jin-ho Byun, YongSeok Choi, Jonghoon Ha, Ki Young Yeon, Dohyung Kim, Jungwoon Jung, Jinyoung Choi, Ran Kim, Jewon Yoo, Inpyo Kim, Chanwoo Joo, Nami Hong, Joohee Lee, Sang Ho Jeon, Sang Ho Oh, Jaekwang Lee, Nari Ahn, Changhee Lee
Summary: In this study, a blue nanorod LED with high external quantum efficiency (EQE) was demonstrated by reducing the size-dependent efficiency reduction through passivation. This work paves the way for manufacturing self-emissive nanorod LED displays for next-generation display technologies.
Article
Chemistry, Physical
Saleh Alofi, Christopher O'Rourke, Andrew Mills
Summary: Through studying the photocatalytic reaction, it has been found that the transport of photogenerated electrons and holes in TiO2 films is highly efficient, and this efficiency is applicable to different types of films. This finding is of great importance in understanding the relevance to self-cleaning glass.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Chemistry, Physical
Wenpeng Ye, Huili Ma, Huifang Shi, He Wang, Anqi Lv, Lifang Bian, Meng Zhang, Chaoqun Ma, Kun Ling, Mingxing Gu, Yufeng Mao, Xiaokang Yao, Chaofeng Gao, Kang Shen, Wenyong Jia, Jiahuan Zhi, Suzhi Cai, Zhicheng Song, Jingjie Li, Yanyun Zhang, Song Lu, Kun Liu, Chaomin Dong, Qian Wang, Yudong Zhou, Wei Yao, Yujian Zhang, Hongmei Zhang, Zaiyong Zhang, Xiaochun Hang, Zhongfu An, Xiaogang Liu, Wei Huang
Summary: The study demonstrates a chemical strategy for achieving high-performance blue phosphorescence by confining isolated chromophores in ionic crystals, forming high-density ionic bonds between the cations of ionic crystals and the carboxylic acid groups of the chromophores to create a segregated molecular arrangement with negligible inter-chromophore interactions.
Article
Chemistry, Physical
Xiaobo Ma, Qiyu Zhang, Lijun Gao, Yating Zhang, Chao Hu
Summary: This study investigates the effect of oxygen vacancies on catalysts for electrochemical nitrogen reduction reaction (NRR). TiO2 was deposited on conductive carbon cloth by atomic layer deposition, and subsequent annealing process introduced oxygen vacancies on the catalyst surface. The results demonstrate that the abundant oxygen vacancies on TiO2 surface enhance the NRR activity of the catalysts. The thickness of the deposited TiO2 layer also significantly influences the NRR activity.
Article
Engineering, Environmental
Jianqiao Liu, Qianru Zhang, Xinyue Tian, Ye Hong, Yichen Nie, Ningning Su, Guohua Jin, Zhaoxia Zhai, Ce Fu
Summary: The study successfully applied oxygen vacancy-rich SnO2 quantum dots for photocatalytic degradation of oil pollutants in water, showing high degradation efficiency and stability. Oxygen vacancies play a key role in the photocatalytic process, establishing a potential electron transition mechanism. Through the study of its electrical properties, a new strategy for enhancing photocatalytic activity can be provided.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Tengyan Wu, Xiang Li, Chih-Huang Weng, Feng Ding, Fengliang Tan, Renyan Duan
Summary: In this study, perovskite-structured catalysts LaMO3 (M = Co, Fe) were synthesized and used to catalyze the degradation of the carcinogenic dye Direct Blue 86 (DB86) using hydrogen peroxide (H2O2). The LaCoO3-catalyzed H2O2 process showed higher oxidative power than LaFeO3/H2O2. The LaCoO3/H2O2 system could completely degrade 100 mg/L of DB86 within 5 minutes under specific conditions. The LaCoO3 catalyst was shown to be reusable and maintained its efficiency even after multiple uses.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Physical
D. Praveen Kumar, Khai H. Do, A. Putta Rangappa, Jehee Lee, Jinming Wang, Ramireddy Boppella, Madhusudana Gopannagari, K. Arun Joshi Reddy, D. Amaranatha Reddy, Tae Kyu Kim
Summary: The paper presents the development of a one-dimensional oxygen-deficient blue TiO2(B) (BT) catalyst combined with hexagonal ZnIn2S4 (ZIS) nanosheets to achieve efficient photocatalytic CO2 conversion. The optimized composite shows significantly higher CO and CH4 production rates compared to ZIS alone, while maintaining stability and selectivity over a 10-day period. Mott-Schottky measurement and recycling tests confirm the band structure and durability of the BT/ZIS heterostructures.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Engineering, Environmental
Qinan Song, Shuo Zhang, Xiaoshu Hou, Jiacheng Li, Lei Yang, Xiang Liu, Miao Li
Summary: This study proposes a strategy for efficient nitrate removal through the activation of oxygen vacancies on a highly dispersed Cu-doped TiO(2 )nanotube array (Cu/ TNTA) cathode via electrodeposition. The results show that trace Cu doping promotes efficient charge transfer between nitrate and the electrode, leading to enhanced nitrate removal rate and stability.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Chemistry, Physical
M. Imran, Ammar Bin Yousaf, Syed Javaid Zaidi, Carlos Fernandez
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2017)
Article
Chemistry, Multidisciplinary
Muhammad Imran, Xiao Zhou, Naseeb Ullah, Ya-Nan Liu, Akif Zeb, Nan Jiang, Umair Yaqub Qazi, Cheng-Zong Yuan, An-Wu Xu
Article
Chemistry, Physical
Muhammad Imran, Ammar Bin Yousaf, Muhammad Farooq, Peter Kasak
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2018)
Article
Chemistry, Multidisciplinary
Ammar Bin Yousaf, Muhammad Imran, Muhammad Farooq, Peter Kasak
Article
Multidisciplinary Sciences
Ammar Bin Yousaf, Muhammad Imran, Muhammad Farooq, Peter Kasak
SCIENTIFIC REPORTS
(2018)
Article
Chemistry, Analytical
Ammar Bin Yousaf, M. Imran, Syed Javaid Zaidi, Peter Kasak
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2019)
Article
Chemistry, Physical
Muhammad Imran, Ammar Bin Yousaf, Muhammad Farooq, Peter Kasak
Summary: The combination of BiVO4 nanorods and ZnCdS in a hetero-structure has shown great potential in improving the photocatalytic activity for hydrogen production through water splitting under visible light irradiation. The heterostructure exhibits enhanced visible light harvesting ability, prolongs the lifespan of charge carriers, and improves charge separation efficiency, leading to increased efficiency in water splitting.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Electrochemistry
Hiroyuki Uchida, Guoyu Shi, Muhammad Imran, Donald A. Tryk
Summary: Polymer electrolyte membranes (PEMs) in fuel cells are chemically degraded by center dot OH radicals, which are generated from H2O2 produced by a reaction between hydrogen adsorbed on the Pt anode and O-2 diffusing through the PEM. By studying the H2O2 production rate at Pt catalysts with different particle sizes, it was found that the production rate decreases with increasing particle size, leading to a decrease in mass activity for the hydrogen oxidation reaction (HOR). The use of Pt skin-covered PtCo/C is a potential solution for achieving low H2O2 production and high HOR activity simultaneously.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Review
Green & Sustainable Science & Technology
K. Owebor, E. O. Diemuodeke, T. A. Briggs, M. Imran
Summary: Globally, there is a rising demand for electricity, but Nigeria is struggling to meet its increasing demand with low per capita electricity consumption. The country has potential in untapped renewable energy sources, but it is primarily reliant on fossil and hydro-power plants. The federal government's energy policies and political will are key in driving sustainable socio-economic development through improved energy access.
Article
Nanoscience & Nanotechnology
Mohamed R. Berber, Muhammad Imran, Hanako Nishino, Hiroyuki Uchida
Summary: The addition of hygroscopic silica nanoparticles to the Pt/C anode catalyst layer can greatly prolong the lifetime of a Nafion membrane in the accelerated stress test and improve the output performance at low relative humidity. It can also decrease the formation rate of H2O2 and reduce the ohmic resistance, leading to effective utilization of Pt cathode catalyst. These findings provide a rational explanation for the enhancement of PEM durability and output performance.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Agricultural Engineering
M. O. Ukoba, E. O. Diemuodeke, T. A. Briggs, M. Imran, K. Owebor, C. O. Nwachukwu
Summary: Despite challenges, Nigeria has a potential to utilize biomass resources from forests and crop residues for clean energy generation. The estimated energy potential for crop and forest residues is 3477.02 and 685.90 PJ/yr respectively, indicating the significance of biomass energy in meeting the country's energy demands. The study also proposes policy pathways and biomass-to-energy conversion technologies to promote the penetration of biomass energy in Nigeria.
BIOMASS & BIOENERGY
(2023)
Article
Chemistry, Physical
Tabbi Wilberforce, A. G. Olabi, Muhammad Imran, Enas Taha Sayed, Mohammad Ali Abdelkareem
Summary: This study investigates the production of green hydrogen using a polymer electrolyte membrane electrolyzer powered by a vertical axis wind turbine. A comprehensive mathematical model of the system was developed using a numerical approach and simulation tools. The study explores different types of electrolyzers and recommends the use of Proton Exchange Membrane Electrolysers. Various power electronics required for connecting the wind turbine to the electrolyzer were also discussed. The performance of the electrolyzer was found to be influenced by temperature, pressure, and wind intensity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Proceedings Paper
Green & Sustainable Science & Technology
Fahid Riaz, Muhammad Farooq, Muhammad Imran, Poh Seng Lee, Siaw Kiang Chou
PROCEEDINGS OF THE ASME 2020 14TH INTERNATIONAL CONFERENCE ON ENERGY SUSTAINABILITY (ES2020)
(2020)
Article
Nanoscience & Nanotechnology
Umair Yaqub Qazi, Cheng-Zong Yuan, Naseeb Ullah, Yi-Fan Jiang, Muhammad Imran, Akif Zeb, Sheng-Jie Zhao, Rahat Javaid, An-Wu Xu
ACS APPLIED MATERIALS & INTERFACES
(2017)
Article
Nanoscience & Nanotechnology
Yi-Fan Jiang, Cheng-Zong Yuan, Xiao Xie, Xiao Zhou, Nan Jiang, Xin Wang, Muhammad Imran, An-Wu Xu
ACS APPLIED MATERIALS & INTERFACES
(2017)