Article
Chemistry, Multidisciplinary
Li Liang, Zuo Zicheng, He Feng, Jiang Zhongqing, Li Yuliang
Summary: An ultrathin layer of nitrogen-rich GDY film is prepared to retard methanol permeation in direct methanol fuel cells, significantly increasing selective suppression of methanol transfer and improving power performance and long-term stability of the cell.
CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
(2021)
Article
Chemistry, Physical
Wu Yujing, Zhou Hongxiu, Zhang Ao, Zhao Leqing
Summary: The research shows that flowing electrode direct methanol fuel cell (FEDMFC) effectively reduces methanol crossover rate while maintaining high power densities. Increasing flow rate can decrease crossover rate but will affect efficiency and stability, with optimal flow rate controlled at 1-3 sccm.
JOURNAL OF POWER SOURCES
(2022)
Article
Polymer Science
Rabiranjan Murmu, Debashis Roy, Subhasmita Jena, Harekrushna Sutar
Summary: In this study, a highly performance Ionic Liquid (IL) modified chitosan based composite membrane was developed to address the major obstacles in direct methanol fuel cells. The IL modification improved ion exchange capacity and proton conductivity, while reducing methanol cross-over. The modified composite membrane showed higher proton conductivity and membrane selectivity, providing a promising candidate for DMFC applications.
Article
Green & Sustainable Science & Technology
Sandip Pal, Rakhi Mondal, Uma Chatterjee
Summary: Blending copolymers of PMMA-co-PAMPS with PVDF and S-PVDF in different weight ratios resulted in proton exchange membranes with high proton conductivity and low methanol permeability, showing promise for application in fuel cells. The blend membranes exhibited improved performance compared to Nafion (R) 117 membrane, making them a potential candidate for PEMFCs or DMFCs application.
Article
Chemistry, Physical
Gyu-Na Bae, Hye-Won Kim, Eun-Mi Jung, Sungmin Kang, Yong-Gun Shul, Dong-Hyun Peck
Summary: MOR/PTFE Nafion composite membranes were prepared by impregnating Nafion solutions in a PTFE porous support with a modified form of MOR. The addition of MOR had a positive effect on reducing methanol permeability and increasing water uptake of the membrane.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Environmental
N. Awang, M. A. M. Yajid, J. Jaafar
Summary: A SPEEK/cloisite nanocomposite membrane exfoliated by electrospun has been developed to address methanol crossover in the DMFC framework, showing improved efficiency and performance compared to other membranes.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Electrochemistry
Mohamed E. Abdelrahman, Hanguang Zhang, Gang Wu, Xianglin Li, Shawn Litster
Summary: In this study, a platinum group metal-free Fe-N-C catalyst derived from metal organic framework precursors was evaluated for the cathode side of a direct methanol fuel cell. The catalyst exhibited high performance under liquid methanol and air operation, with the cathode contributing significantly to the voltage loss. Improvements in catalyst layer fabrication were identified through nanoscale X-ray computed tomography.
ELECTROCHIMICA ACTA
(2022)
Article
Energy & Fuels
S. A. Gokulakrishnan, Vikas Kumar, G. Arthanareeswaran, A. F. Ismail, Juhana Jaafar
Summary: By adding halloysite nanoclay and f-GO to SPEEK membrane, the thermal stability, proton conductivity, and hydrophilicity can be improved, making it an excellent membrane material for direct methanol fuel cell applications.
Article
Engineering, Environmental
Wei Wuen Ng, Hui San Thiam, Yean Ling Pang, Yun Seng Lim, Jianhui Wong, Lip Huat Saw
Summary: In this study, a self-healable proton exchange membrane (PEM) with methanol-blocking properties was successfully demonstrated by assembling sulfonated graphene oxide (SGO) with Nafion and poly(vinyl alcohol) (PVA). The hybrid membrane showed higher proton conductivity and better methanol-blocking effect compared to recast Nafion, and exhibited excellent performance in a single DMFC.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Debora A. Sales, Paloma N. S. Lima, Lucinaldo S. Silva, Thalles M. F. Marques, Suziete B. S. Gusmao, Odair P. Ferreira, Anupama Ghosh, Yuset Guerra, Alan I. S. Morais, Roosevelt D. S. Bezerra, Edson C. Silva-Filho, Bartolomeu C. Viana
Summary: This work explores the functionalization of sodium titanate nanotubes by reacting them with aminosilanes. The results show that the crystalline and morphological structures of the nanotubes were preserved after functionalization, and the aminosilanes covalently interacted with the surface of the nanotubes. The functionalized nanotubes exhibited high adsorption capacity for the anionic dye remazol blue R in aqueous solution.
Article
Thermodynamics
Qian Xu, Wei Sun, Jiajia Zhang, Weiqi Zhang, Qiang Ma, Huaneng Su, Lei Xing
Summary: By incorporating a graphene layer and Nafion ionomer binder into the anode electrode, the performance of a direct methanol fuel cell under high-concentration fuel conditions can be effectively improved, including increased peak power density and reduced charge transfer resistance.
INTERNATIONAL JOURNAL OF GREEN ENERGY
(2021)
Article
Chemistry, Physical
Christian Lutz, Sven Hampel, Xi Ke, Sabine Beuermann, Thomas Turek, Ulrich Kunz, Ana Guilherme Buzanich, Martin Radtke, Ursula E. A. Fittschen
Summary: The study found that redox reactions inside the membrane could impact the speciation of vanadium ions in vanadium redox flow batteries. This was confirmed using X-ray absorption near edge structure spectroscopy.
JOURNAL OF POWER SOURCES
(2021)
Review
Polymer Science
Gowthami Palanisamy, Tae Hwan Oh, Sadhasivam Thangarasu
Summary: A direct methanol fuel cell (DMFC) is an excellent energy device that converts methanol to energy with high efficiency. Commercial membranes for DMFCs are expensive and have high methanol permeability, but novel developments using cost-effective cellulose-based materials have improved performance. In this review, the advances and utilization of different cellulose materials as proton-exchange membranes (PEMs) for DMFCs are discussed, including cellulose derivatives and composites with inorganic additives.
Article
Green & Sustainable Science & Technology
Jing Zhou, Jiamu Cao, Yufeng Zhang, Junfeng Liu, Junyu Chen, Mingxue Li, Weiqi Wang, Xiaowei Liu
Summary: This paper discusses the Chinese government's policies supporting methanol fuel applications and the vast potential of direct methanol fuel cells in the era of green development. It highlights the importance of reducing the methanol permeability of polymer electrolyte membranes as a fundamental way to lessen or eliminate methanol crossover.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Chemistry, Physical
Md Abdul Aziz, Sangaraju Shanmugam
Summary: In this study, a Nafion/TiZrO4NT composite membrane was proposed for H-6[CoW12O40] RFB, achieving higher proton conductivity and ion selectivity, as well as higher discharge capacity, voltage efficiency, and energy efficiency. Furthermore, the composite membrane improved battery cycling efficiency and open-circuit voltage.
ACS APPLIED ENERGY MATERIALS
(2021)
Review
Ophthalmology
Liangbo L. Shen, Aneesha Ahluwalia, Mengyuan Sun, Benjamin K. Young, Holly K. Grossetta Nardini, Lucian Del Priore
Summary: The study revealed a two-phase linear decline in BCVA of eyes with CHM with a transition age of approximately 39 years. Future trials enrolling young patients may need to consider additional disease biomarkers as auxiliary endpoints, especially for those under the age of 39.
BRITISH JOURNAL OF OPHTHALMOLOGY
(2021)
Article
Ophthalmology
Liangbo L. Shen, Shwetha Mangalesh, Brendan McGeehan, Vincent Tai, Neeru Sarin, Mays A. El-Dairi, Sharon F. Freedman, Maureen G. Maguire, Cynthia A. Toth
Summary: The study found that birth weight is an important independent predictor of retinal nerve fiber layer thickness in preterm infants, with increased birth weight positively correlated with RNFL thickness. Extremely preterm infants had thinner RNFL compared to very low birth weight infants, but the difference became nonsignificant after adjusting for birth weight.
AMERICAN JOURNAL OF OPHTHALMOLOGY
(2021)
Article
Ophthalmology
Aneesha Ahluwalia, Liangbo L. Shen, Lucian Del Priore
Summary: This study compared the natural progression of VRQoL in central GA and nAMD, finding differences in VRQoL decline before and after the development of advanced AMD. Female gender and higher baseline VRQoL score were independently associated with a longitudinal decline in VRQoL after progression to advanced AMD.
GRAEFES ARCHIVE FOR CLINICAL AND EXPERIMENTAL OPHTHALMOLOGY
(2021)
Article
Ophthalmology
Liangbo L. Shen, Mengyuan Sun, Aneesha Ahluwalia, Michael M. Park, Benjamin K. Young, Eleonora M. Lad, Cynthia Toth, Lucian Del Priore
Summary: This study tracked the progression of eyes with geographic atrophy (GA) involving the central 1 mm diameter zone and found that the central residual effective radius (CRER) declined linearly over approximately 13 years. This finding suggests that CRER could serve as an anatomical endpoint in future clinical trials aiming to preserve the central zone.
BRITISH JOURNAL OF OPHTHALMOLOGY
(2022)
Article
Nanoscience & Nanotechnology
Yongsheng Wei, Peichao Zou, Yuanchao Yue, Maosen Wang, Wenying Fu, Si Si, Lu Wei, Xinsheng Zhao, Guangzhou Hu, Huolin L. Xin
Summary: In this study, a quaternary B/P-codoped transition metal Co-Mo hybrid was reported as an efficient alternative catalyst for overall water splitting, exhibiting high catalytic activity and long-term stability in 1.0 M KOH solution.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Ophthalmology
Liangbo L. Shen, Yangyiran Xie, Mengyuan Sun, Aneesha Ahluwalia, Michael M. Park, Benjamin K. Young, Lucian Del Priore
Summary: This study found that the progression of geographic atrophy (GA) may be associated with the fellow eye status, cholesterol-lowering medication use, and diuretic use.
BRITISH JOURNAL OF OPHTHALMOLOGY
(2023)
Article
Ophthalmology
Liangbo L. Shen, Shwetha Mangalesh, Suzanne M. Michalak, Brendan McGeehan, Neeru Sarin, Joanne Finkle, Katrina P. Winter, Du Tran-Viet, Eric J. Benner, Lejla Vajzovic, Sharon F. Freedman, Noelle Younge, C. Michael Cotten, Mays El-Dairi, Gui-Shuang Ying, Cynthia Toth
Summary: This study found that low infant weight and sepsis/necrotising enterocolitis (NEC) were independently associated with thinner retinal nerve fibre layer (RNFL) in preterm infants. This is the first study to suggest that sepsis/NEC may affect retinal neurodevelopment.
BRITISH JOURNAL OF OPHTHALMOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Yongsheng Wei, Maoseng Wang, Wenying Fu, Si Si, Lu Wei, Xinsheng Zhao, Yan Wang
Summary: An effective strategy was developed to synthesize a nanostructured MnCoP catalyst on nickel foam for the hydrolysis of NaBH4 solution, demonstrating outstanding catalytic performance with high stability.
Article
Chemistry, Multidisciplinary
Feng Liu, Xin Jiang, Hong-Hui Wang, Cheng Chen, Yu-Han Yang, Tian Sheng, Yong-Sheng Wei, Xin-Sheng Zhao, Lu Wei
Summary: This study explores the use of high-index faceted Au nanocrystals as efficient catalysts in the electrocatalytic hydrazine oxidation reaction (HzOR). Theoretical calculations reveal that the Au(551) surface is more active than the Au (111) surface, and the step atoms on the Au(551) surface enhance HzOR. Experimentally, concave trioctahedral Au nanocrystals enclosed by {551} high-index facets showed excellent electrocatalytic performance for HzOR. The study provides new insights into electrocatalytic HzOR over Au high-index facets and presents a rational design of high-performance electrocatalysts.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Multidisciplinary Sciences
Liangbo L. Shen, Lucian Del Priore, Joshua L. Warren
Summary: Studying the natural course of a chronic disease from inception to end is challenging. The developed BETR method enables investigation of long-term disease progression using short-term patient data. BETR outperforms existing methods and accurately identifies the correct disease progression model.
SCIENTIFIC REPORTS
(2022)
Article
Ophthalmology
Kai R. Seely, Shwetha Mangalesh, Liangbo L. Shen, Brendan McGeehan, Gui-Shuang Ying, Neeru Sarin, Lejla Vajzovic, S. Grace Prakalapakorn, Sharon F. Freedman, Cynthia A. Toth
Summary: This study aimed to evaluate the association between preterm infant retinal microanatomy and visual acuity (VA) at 9 months' corrected age. The study found that thinning of the retinal nerve fiber layer (RNFL) across the papillomacular bundle (PMB) was associated with poorer VA at 9 months.
JAMA OPHTHALMOLOGY
(2022)
Article
Ophthalmology
Benjamin K. Young, Liangbo L. Shen, Lucian V. Del Priore
Summary: This study demonstrates that the organized formation of subretinal drusenoid deposits (SDDs) may be a Turing pattern. By varying the parameters of a reaction-diffusion system, patterns matching the clinically observed SDD patterns can be generated. This model is important for guiding future risk stratification for patients with SDD and providing mechanistic insights into the cause of the disease.
TRANSLATIONAL VISION SCIENCE & TECHNOLOGY
(2022)
Article
Ophthalmology
Liangbo L. Shen, Shwetha Mangalesh, Brendan McGeehan, Kai R. Seely, Vincent Tai, Neeru Sarin, Joanne Finkle, Katrina P. Winter, Du Tran-Viet, Sharon F. Freedman, Mays A. El-Dairi, Gui-Shuang Ying, Cynthia A. Toth
Summary: This study used an investigational handheld OCT system to serially image preterm infants and monitored the changes in RNFL and GCL+IPL thickness. The results showed a biphasic model of thickness changes, with transitions occurring at 37.8 and 39.5 weeks PMA for RNFL and GCL+IPL, respectively.
BRITISH JOURNAL OF OPHTHALMOLOGY
(2022)
Article
Ophthalmology
Aneesha Ahluwalia, Liangbo L. Shen, Yihan Bao, Mengyuan Sun, Benjamin K. Young, Michael M. Park, Lucian Del Priore
Summary: This study examined the association between the distribution of geographic atrophy (GA) and vision-related quality of life (VRQoL). The results showed that greater area of atrophy in the central 1-mm-diameter zone of the better eye was significantly associated with lower VRQoL, while total area of atrophy in the better or worse eye was not.
GRAEFES ARCHIVE FOR CLINICAL AND EXPERIMENTAL OPHTHALMOLOGY
(2023)
Article
Genetics & Heredity
Benjamin K. Young, Peter Y. Zhao, Liangbo L. Shen, Abigail T. Fahim, K. Thiran Jayasundera
Summary: Incidence and progression of atrophy in Stargardt disease show opposite patterns. Atrophy occurs more frequently near the fovea, but progresses faster with distance from the foveal center. This should be considered in clinical trials.
OPHTHALMIC GENETICS
(2023)
