Article
Environmental Sciences
Yadala Venkata Divyasri, Nagappagari Lakshmana Reddy, Kiyoung Lee, M. Sakar, Vempuluru Navakoteswara Rao, Vemula Venkatramu, Muthukonda Venkatakrishnan Shankar, Nallagondu Chinna Gangi Reddy
Summary: This study optimized nitrogen doping in TiO2 nanotubes to achieve enhanced photocatalytic efficiency for dye degradation and hydrogen production under solar light exposure. By controlling the nitrogen doping concentration, the N-doped TiO2 nanotubes showed efficient photocatalytic performance and stable recyclability.
ENVIRONMENTAL POLLUTION
(2021)
Article
Chemistry, Physical
Jacob Schneidewind
Summary: This article introduces an open-source software and modeling method for techno-economic analysis of technologies such as photoelectrochemical, photocatalytic, and photovoltaic + electrolysis, to determine the required technological improvements to achieve cost competitiveness. It explores the necessary progress for each technology and proposes actionable research targets.
ADVANCED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Takumi Okada, Masanori Kodera, Yugo Miseki, Takahiro Gunji, Kazuhiro Sayama
Summary: Photocatalysis-electrolysis hybrid systems are attractive candidates for cost-effective green hydrogen production, and it is crucial to improve the O-2 evolution activity in the aqueous solution containing redox mediators. In this study, a kinetic analysis was conducted for the first time to determine the role of WO3 modified at various temperatures onto Cr- and Sb-codoped TiO2. The analysis elucidated the factor that contributed to the higher activity, revealing that WO3 species increased the amount of Fe3+ ions at the sliding surface, resulting in improved O-2 evolution activity.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zhenni Wu, Imgon Hwang, Gihoon Cha, Shanshan Qin, Ondrej Tomanec, Zdenek Badura, Stepan Kment, Radek Zboril, Patrik Schmuki
Summary: Anodic TiO2 nanotubes are shown to have excellent properties for harvesting Pt single atoms from highly dilute solutions. The tube walls provide suitable trapping sites for Pt SAs, and a high activity for photocatalytic H-2 generation can be achieved by immersing the nanotubes in a low concentration Pt solution. Overall, these findings demonstrate the potential of anodic TiO2 nanotubes for efficient Pt extraction and recovery, leading to highly active photocatalysts.
Article
Chemistry, Physical
Sakshi S. Tak, Omkar Shetye, Omkar Muley, Harsh Jaiswal, Sameena N. Malik
Summary: Wastewater treatment is crucial for environmental protection, and the production of hydrogen from wastewater has been studied using various technologies with different mechanisms and processes.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Shujuan Zhang, Dan Liu, Limin Song, Erming Liu
Summary: This article reports an easy method of optical radiation-assisted thermal excitation that significantly increases the photocatalytic hydrogen generation ability of P25. This method overcomes the drawbacks of traditional catalytic material modification methods and greatly improves the hydrogen production ability of photocatalytic materials. The hydrogen generation rates at room temperature and 50°C are 1090 mmol/g/h and 10670 mmol/g/h, respectively. This work presents the detailed mechanism and laws behind the enhanced photocatalytic hydrogen generation of P25 using this method. It provides evidence and references for understanding how photothermic synergistic action facilitates the photocatalytic hydrogen generation of catalytic materials.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Electrochemistry
Xuewei Wu, Wangyang Li, Sizhe Sheng, Lin Zhu, Lufeng Yuan, Jianwei Liu, Shunyu Jin, Zhen Zhang
Summary: This study reveals that the presence of Au particles on TiO2 electrodes greatly enhances the reduction of H2O and production of H2, achieving efficient hydrogen production through the H spillover effect.
ELECTROCHEMISTRY COMMUNICATIONS
(2021)
Review
Chemistry, Physical
Zhongxiao Li, Shi Fang, Haiding Sun, Ren-Jei Chung, Xiaosheng Fang, Jr-Hau He
Summary: Hydrogen, a zero-pollution, sustainable, low-cost, and high-efficiency energy source, has great potential for the 21st century. Solar water-splitting techniques, such as photovoltaic-electrolysis (PV-EC) and photoelectrochemistry (PEC), have shown promise with solar-to-hydrogen conversion efficiency over 10%. However, there is a gap between laboratory research and practical application, which can be addressed by understanding the basic principles, historical developments, and performing comprehensive techno-economic analysis.
ADVANCED ENERGY MATERIALS
(2023)
Article
Engineering, Environmental
Haitham M. El-Bery, Hani Nasser Abdelhamid
Summary: Water splitting via photocatalysis using titanium dioxide holds great potential for hydrogen gas generation. In this study, cobalt oxide embedded nitrogen-doped carbon (Co3O4@C) was synthesized using zeolitic imidazolate framework (ZIF-67) as a sacrificial precursor, which showed significant enhancement in photocatalytic performance and hydrogen generation rates when used as a co-catalyst with TiO2. The Co3O4@C/TiO2 system exhibited recyclability for more than four cycles without significant loss of performance, indicating its potential for further exploration in effective photocatalysis.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Xueqin Wang, Peng Qiao, Qihui Chen, Man Dai, Ying Liu, Yuanyuan Wang, Wenyi Wang, Yanxiu Liu, Hua Song
Summary: Cu2O nanoparticles were electrochemically deposited onto TiO2 nanotube surfaces to improve the photocatalytic performance of TiO2 nanotubes. The doping of Cu2O nanoparticles lowered the recombination rate of photogenerated electron-hole pairs, thus improving the photocatalytic efficiency.
Article
Electrochemistry
Khaled M. AlAqad, Tarek A. Kandiel, Tahir Naveed Jahangir, Mohammad Qamar, Chanbasha Basheer
Summary: The coupling effect between oxygen and phosphorous in cobalt oxyphosphide (CoOP) can enhance the electrocatalytic hydrogen evolution reaction (HER) in an alkaline medium. This study demonstrates a one-step and safe electrodeposition method to modify the surface of ordered titania nanotubes (TNTs) with CoOP spheres. The electrocatalytic HER performance of CoOP-modified TNTs was investigated by varying the electrodeposition charge density, pH, and presence of citric acid.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Applied
Mahmoud R. Saleh, Haitham M. El-Bery, Hani Nasser Abdelhamid
Summary: A wet-incipient impregnation method was used to synthesize hierarchical porous bimetallic (Co, Zn)-zeolitic imidazolate frameworks (ZIF-8)/TiO2 for efficient photocatalytic water splitting. Co@ZIF-8/TiO2 exhibited significantly higher photocatalytic efficiency than TiO2, with a hydrogen generation rate of 13 mmol·h(-1)·g(-1) and a 151-fold increase in catalytic performance. The hierarchical porous structure of Co@ZIF-8 facilitated charge transfer and provided efficient transport channels. This study demonstrates the potential of hierarchical porous metal-organic frameworks (MOFs) as support and promoter in photocatalytic applications of TiO2.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Lauri Jarvinen, Pietari Puranen, Antti Kosonen, Vesa Ruuskanen, Jero Ahola, Pertti Kauranen, Michael Hehemann
Summary: This paper presents an open-source MATLAB toolbox for water electrolyzer polarisation curve parametrization and modelling, which was verified using measured data. The tool demonstrates its capability to work with a wide variety of use cases and provides an automated method for modelling and parametrization of electrolyzer polarisation curves.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Multidisciplinary Sciences
Ziqi Tian, Yuan Wang, Yanle Li, Ge Yao, Qiuju Zhang, Liang Chen
Summary: In this study, first-principles calculations were performed to investigate the structure-property relationship of transition metal macrocyclic complexes. The results showed that introducing appropriate apical ligands and regulating the coordination environment can improve the performance of catalysts and reduce the overpotential for oxygen reduction reaction.
Article
Energy & Fuels
Moushira Saleh, Hani Nasser Abdelhamid, Dina M. Fouad, Haitham M. El-Bery
Summary: The use of light radiation to split water into hydrogen gas has great potential for green hydrogen production. A comparative study was conducted on the photocatalytic activity of TiO2 nanocomposites with two co-catalysts, Pt or Cu nanocrystals, using different synthesis methods. The study found that the deposition technique of the co-catalyst has a significant influence on the efficiency of photocatalysis for hydrogen production.
Article
Multidisciplinary Sciences
Haifeng Yu, Huawei Zhu, Hongliang Jiang, Xiaozhi Su, Yanjie Hu, Hao Jiang, Chunzhong Li
Summary: A dual-track strategy of tantalum doping and cerium oxide coating is used to fully restrain the escape of lattice oxygen from Ni-rich cathodes in high-voltage regions, enhancing the performance and safety of lithium-ion batteries. The treated cathode exhibits high cyclic performance within the voltage range of 2.7-4.5 V.
NATIONAL SCIENCE REVIEW
(2023)
Article
Materials Science, Multidisciplinary
Jiahao Zhang, Qiucheng Xu, Jingyu Wang, Yanjie Hu, Hao Jiang, Chunzhong Li
Summary: Researchers have demonstrated a novel electrocatalyst that can improve the efficiency of water electrolysis by breaking the scaling relationship of the oxygen evolution reaction. This catalyst achieves ultrahigh current density at a low potential, with low overpotential and high stability under high current densities.
SCIENCE CHINA-MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Da Xu, Qilin Cheng, Petr Saha, Yanjie Hu, Ling Chen, Hao Jiang, Chunzhong Li
Summary: In this study, Se/N co-doped hard carbon nanotubes were successfully synthesized, showing high reversible storage capacity and electrochemical reversibility for potassium-ion batteries. They exhibited excellent electrochemical performance in terms of both weight and area, making them promising for application in potassium-ion batteries.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Applied
Haiyan Wang, Haowen Du, Hucheng Zhang, Songjie Meng, Zhansheng Lu, Hao Jiang, Chunzhong Li, Jianji Wang
Summary: This study presents the design of expanded graphite cohered by N, B bridge-doping carbon patches (NBEG) as an efficient anode for potassium-ion batteries (KIBs). The co-doping of B plays a crucial role in maximizing the doping-site utilization of N atoms, balancing the adsorption-diffusion kinetics, and promoting charge transfer. The designed NBEG exhibits a robust lamellar structure, suitable interlayer distance, and rich active sites, enabling rapid ion/electron transfer and high K-ion storage capacity.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Physical
Wu Wei, Zhihong Wang, Liyun Yao, Hao Jiang, Chunzhong Li
Summary: In this study, CeO2-x-coated LiNi0.9Co0.045Mn0.045Al0.01O2 was used to stabilize the lattice oxygen of Ni-rich and Co-poor cathodes, resulting in a reversible oxygen-storage protective layer and improved crystal and interface structure. The obtained cathode exhibited a high specific capacity of 223 mA h g(-1) at 0.1C and 140 mA h g(-1) even at 10C, with 96.7% capacity retention at 1C after 100 cycles in a coin-type half-cell. About 90.1% capacity retention could still be obtained at 1C after 300 cycles in a pouch-type full-cell. This work provides a viable method for stabilizing the lattice oxygen of Ni-rich and Co-poor cathodes.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Nanoscience & Nanotechnology
Yating Wang, Ling Cheng, Wangxin Ge, Yihua Zhu, Jie Zhang, Rongzhen Chen, Ling Zhang, Yuhang Li, Chunzhong Li
Summary: Scientists have localized nanosized Cu2O on three different carbon-based substrates with different charge-promotion effects, and found that these effects can increase the faradaic efficiency (FE) for C2 products. Among them, positively charged boron-doped graphene (BG) has the highest FE, followed by negatively charged nitrogen-doped graphene (NG), and weakly negatively charged reduced graphene oxide (rGO) has the lowest FE.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Yushuang Fang, Yu Fan, Kunchi Xie, Wangxin Ge, Yihua Zhu, Zhiwen Qi, Zhen Song, Hongliang Jiang, Chunzhong Li
Summary: Designing an efficient electrode-electrolyte interface for H2O2 electrosynthesis is challenging. However, adding dimethyl sulfoxide (DMSO) to the electrolyte can improve the selectivity and activity of H2O2 production. The formation of hydrogen bonds between DMSO and water at the electrode-electrolyte interface reduces water dissociation, leading to improved selectivity of H2O2 synthesis. This work highlights the importance of regulating the interfacial hydrogen-bond environment for enhancing electrochemical performance.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Chemical
Jiachen Guo, Zhiyuan Peng, Hu Wang, Liu Yang, Ling Zhang, Chunzhong Li
Summary: In this study, urea-assisted ball milling method was used to enhance the thermal conductivity, flame resistance, and mechanical properties of cellulose nanofiber-based film by creating the covalent bond between boron nitride nanosheets (BNNS) and black phosphorus (BP). The treated film showed high thermal conductivity at 50% loading, with reduced fire hazard.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Engineering, Chemical
Zhichao Shen, Yanbin Qi, Wangxin Ge, Hongliang Jiang, Chunzhong Li
Summary: Cu/Ni-B interface catalysts improve the efficiency of ureaelectrooxidation and promote the formation of N-2. This study isinstructive for the design of electrocatalysts for other nucleophileelectrooxidation reactions.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Engineering, Chemical
Hu Wang, Ling Zhang, Chunzhong Li
Summary: In this study, lightweight and flexible electromagnetic shielding composite films with excellent Joule heating performance and good mechanical properties were prepared. The composite films achieved a high electromagnetic shielding effectiveness of 40.52 dB at 8.2-12.4 GHz (X-band) with a low thickness of 22 μm. They also exhibited excellent electrical heating performance with a surface saturation temperature as high as 127.6 degrees C under an applied voltage of 7 V. Therefore, the ANF/APP/PRGO composite films have practical application value in the fields of electromagnetic shielding and electric heating.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Yuan Zhao, Jipeng Xu, Kai Huang, Wangxin Ge, Zhen Liu, Honglai Liu, Cheng Lian, Hongliang Jiang, Chunzhong Li
Summary: Electrochemical alkynol semi-hydrogenation using water as the hydrogen source instead of H2 is a sustainable and environmentally friendly method for producing high-value alkenols. This study proposes the use of boron-doped Pd catalysts (PdB) and surfactant-modified interface to increase both alkenol selectivity and alkynol conversion. By assembling quaternary ammonium cationic surfactants at the electrode-electrolyte interface, in response to applied bias potential, an interfacial microenvironment is created which promotes alkynol semi-hydrogenation and inhibits hydrogen evolution reaction without decreasing alkenol selectivity.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Review
Energy & Fuels
Yuhang Jiang, Yating Wang, Rongzhen Chen, Yuhang Li, Chunzhong Li
Summary: The use of bimetallic metal-organic frameworks (MOFs) as electrocatalysts for the carbon dioxide reduction reaction (CO2RR) has gained significant attention in the field of clean energy. Bimetallic MOFs exhibit synergistic effects and superior performance compared to monometallic MOFs, particularly in terms of product selectivity. This mini-review provides an overview of recent progress in the synthesis and design of bimetallic MOFs as CO2RR electrocatalysts. The importance of organic ligands, metal components, and MOF-derived materials is discussed, along with the advantages of utilizing two metal components. The challenges, gaps, and future perspectives of using bimetallic MOF materials for electrocatalytic CO2RR are also highlighted.
Article
Multidisciplinary Sciences
Zhaolu Zhang, Kai Huang, Xinyue Qiu, Wangxin Ge, Xiaoling Yang, Yihua Zhu, Cheng Lian, Honglai Liu, Hongliang Jiang, Zhong Li
Summary: This work demonstrated a highly efficient electrochemical conversion of 5-hydroxymethylfurfural to 2,5-bis(hydroxymethyl)furan and developed a highly porous Cu-based catalyst with high BHMF selectivity and long-term stability. The electrochemically generated catalyst with abundant Cu/Cu2O interfaces was identified as the catalytically active phase for HMF conversion through structural characterizations.
FUNDAMENTAL RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Zhihong Wang, Wu Wei, Qiang Han, Huawei Zhu, Ling Chen, Yanjie Hu, Hao Jiang, Chunzhong Li
Summary: A microstructure engineering strategy is used to synthesize elongated primary particles radially aligned Ni-rich cathodes through regulation of precipitation rates and flow field distributions. The resulting cathode exhibits enlarged lattice distance and highly exposed (003) plane, showing significant advantages such as high-rate, long-cycle life, and thermal stability. After modification, an exceptionally long life is achieved with a capacity retention of 90.1% at 1C and 84.3% at 5C after 1500 cycles within 3.0-4.3 V in a 1.5-Ah pouch cell. This work offers a universal strategy to enhance the durability of Ni-rich cathodes by achieving isotropic strain distribution.
Article
Chemistry, Physical
He Zhao, Ling Zhang, Tianbo Deng, Chunzhong Li
Summary: Researchers have developed a multifunctional wearable electrochemical biosensor based on a patterned Janus fabric for continuous analysis of glucose in sweat. The biosensor achieves high sensitivity and long-term stability, and a wearable glucose intelligent early warning system is developed based on this biosensor for real-time monitoring and emergency feedback.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
