Article
Chemistry, Multidisciplinary
Masoumeh Ghalkhani, Rasol Abdullah Mirzaie, Fatemeh Shahmoradi, Azam Anaraki Firooz
Summary: In this research, a nanocatalyst based on manganese and cobalt oxides was developed to create an efficient cathode electrode for fuel cells. The nano MnOx/MnCo2O4 was synthesized through a hydrothermal procedure followed by sintering. Various characterization techniques were used to analyze the synthesized nanocatalyst. The synthesized nanocatalyst was loaded onto carbon paste in different weight ratios, and the best performance was achieved with 50 W% MnOx/MnCo2O loaded carbon paste, showing twice the active surface area compared to bare carbon paste. The nanocatalyst demonstrated low cost, good catalytic efficiency, and cyclic stability, making it a potential alternative to platinum-based catalysts for fuel cell electrodes.
Article
Nanoscience & Nanotechnology
Amit Chaturvedi, Patit Paban Kundu
Summary: High-performance cobalt nanoparticles supported on a zeolite-graphene oxide matrix have been synthesized and exhibit outstanding oxygen reduction reaction (ORR) performance and electrocatalytic properties. When applied as the cathode electrocatalyst in a single-chambered microbial fuel cell, the coated catalyst generates significantly higher power density compared to a Pt/C catalyst.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Environmental Sciences
Jiwei Jiang, Shixuan Zhang, Shengnan Li, Wenlu Zeng, Fengxiang Li, Wei Wang
Summary: A novel cathode catalyst was developed using watermelon rind as raw material, which significantly enhanced the electrochemical performance of MFCs, reduced costs, and achieved significant effects in water treatment and power generation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Materials Science, Multidisciplinary
Shuo Sun, Haoran Yu, Lanlan Li, Xiaofei Yu, Xinghua Zhang, Zunming Lu, Xiaojing Yang
Summary: In this study, the oxygen reduction performance of manganese oxide octahedral molecular sieve was adjusted by surface reduction etching treatment. The treated material exhibited excellent electrical conductivity and high oxygen reduction kinetics. The generation of appropriate oxygen vacancies improved the chemical properties of the material surface and increased the oxygen reduction adsorption sites.
Article
Chemistry, Physical
Mphoma S. Matseke, Haitao Zheng, Mkhulu K. Mathe, Emanuela Carleschi, Bryan Doyle
Summary: In this study, Co-doped MnFe2O4 electrocatalysts were found to have improved oxygen reduction reaction (ORR) performance, with MnFe1.5Co0.5O4/C electrocatalyst showing the best results. The Co doping resulted in smaller and more uniform particle sizes, more oxygen vacancies, enriched surface Mn3+ ions, and improved conductivity, all contributing to enhanced ORR activity compared to pristine MnFe2O4/C.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Environmental Sciences
Khurram Tahir, Waheed Miran, Jiseon Jang, Nagesh Maile, Asif Shahzad, Mokrema Moztahida, Ahsan Adul Ghani, Bolam Kim, Dae Sung Lee
Summary: This study synthesized a binder-free manganese cobalt oxide anode with a large electrochemically active and rough surface area, leading to improved microbial fuel cell performance. The superior bio-electrochemical activity, reduced ion transfer resistance, and excellent capacitance of the synthesized anode resulted in enhanced power density. The modified anode also accelerated the enrichment of electro-active microbes, as shown by high-throughput biofilm analysis.
Article
Engineering, Environmental
Thomas Yang, Dinesh Bhalothia, Hong -Wei Chang, Che Yan, Amisha Beniwal, You-Xun Chang, Shun-Chi Wu, Po-Chun Chen, Kuan-Wen Wang, Sheng Dai, Tsan-Yao Chen
Summary: Considering the importance of fuel cells, developing highly efficient and durable platinum-free catalysts is crucial. This study proposes a novel nanocatalyst, which consists of oxygen vacancies enriched atomic CoPdOx clusters anchored Pd nanoparticles on a cobalt-oxide support. The resulting nanocatalyst demonstrates exceptional mass activity and durability in the oxygen reduction reaction, surpassing the commercial catalyst by 65 times. The study also reveals the potential synergism between CoPdOxV and metallic Pd-sites, providing insights for designing high-performance catalysts.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Yun Chen, Sergio A. Paredes-Navia, Cesar-Octavio Romo-De-La-Cruz, Liang Liang, Andre Fernandes, Alec Hinerman, Jacky Prucz, Mark Williams, Xueyan Song
Summary: The study demonstrates that applying a unary electrocatalyst of Pt or CoOx to the LSCF/SDC composite electrode can mitigate the cation surface segregation and improve conductivity and the oxygen reduction reaction. ALD coating reduces cell ohmic resistance and enhances cathode conductivity and durability.
JOURNAL OF POWER SOURCES
(2021)
Article
Engineering, Environmental
Weifeng Liu, Zihao Zhou, Zhe Li, Yan Yang, Jiao Zhao, Yimin Zhu, Wenjing Miao
Summary: The study introduces a cost-effective non-precious metal catalyst CoP@N-C for oxygen reduction reaction in microbial fuel cells, demonstrating enhanced catalytic activity and power density, compared to traditional activated carbon control.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Kea-Lee Yap, Li-Ngee Ho, Soon-An Ong, Kun Guo, Yun-Ming Liew, Shen-Hui Thor, Sing-Mei Tan, Tean-Peng Teoh
Summary: By using CuO loaded carbon plate as the cathodic catalyst, the efficiency of the double chambered microbial fuel cell system was improved, allowing for more effective degradation of wastewater and dihydroxybenzene isomers, as well as increased generation of bioelectricity. Among the dihydroxybenzene isomers, hydroquinone exhibited the best degradation performance.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Chemistry, Physical
Guangxing Li, Min Jiang, Qin Liao, Ruida Ding, Yuanhang Gao, Linwu Jiang, Dina Zhang, Shuguang Chen, Hao He
Summary: This study demonstrates the enhancement of oxygen reduction performance in Mg-air fuel cells by anchoring Ag single atoms onto the surface of alpha-MnO2 nanorods, showing improved catalytic activity and high power density. The Ag@alpha-MnO2 catalyst exhibits better stability, anti-poisoning capability, and comparable performance to commercial Pt/C, providing new ideas for efficient and cost-effective ORR catalyst in metal-air fuel cells.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Shan Ding, Yuxiang Zhang, Fengqian Lou, Ming Li, Qi Huang, Kang Yang, Baokai Xia, Cheng Tang, Jingjing Duan, Markus Antonietti, Sheng Chen
Summary: This study reports a novel oxygen-vacancy-type Mars-van Krevelen mechanism for promoting the electrochemical oxygen reduction reaction (ORR). The structural oxygen vacancies of zinc oxide catalysts effectively alter the electron densities of nearby metal active sites, facilitating the adsorption and activation of O-2. Experimental results demonstrate that the catalyst electrode designed based on this mechanism exhibits superior ORR activities with high Faradaic efficiency.
MATERIALS TODAY ENERGY
(2023)
Article
Materials Science, Ceramics
Huiying Qi, Peng Qiu, Tonghuan Zhang, Di Liu, Mojie Cheng, Baofeng Tu
Summary: This study proposes cost-effective cathode materials with high catalysis activity for use in intermediate-temperature solid oxide fuel cells. Cobalt-free composites were synthesized using a smart self-assembled method, primarily utilizing doped-BaZrO3 and doped-BaFeO3 cubic perovskites. Both composite cathodes exhibit nano- and micro-particles with extensive heterointerfaces and excellent cathode| electrolyte interfaces, which can assist the surface catalysis and oxygen species transport. A cell with a BSrFZ composite cathode achieved a higher maximum power density compared to that with a BSmFZ composite cathode, benefiting from its enriched oxygen vacancies and high surface and heterointerface activities.
CERAMICS INTERNATIONAL
(2022)
Article
Nanoscience & Nanotechnology
Lulu Wen, Xinyang Li, Rui Zhang, Huawei Liang, Qitao Zhang, Chenliang Su, Yu-Jia Zeng
Summary: Introducing oxygen vacancies is considered an effective method to accelerate the nitrogen reduction reaction, and Zn-Co3O4 nanopolyhedrons with abundant oxygen vacancies and high catalytic performance have been successfully prepared in this study. The catalyst shows high ammonia yield and faradaic efficiency, as well as excellent stability.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Jadranka Milikic, Sara Knezevic, Milos Ognjanovic, Dalibor Stankovic, Lazar Rakocevic, Biljana Sljukic
Summary: Porous cobalt (III) oxide (Co3O4) and mixed cobalt (III) oxide -tin oxide (Co3O4/SnO2) with spherical morphology were prepared by a novel template-based hydrothermal method. They showed excellent performance as bifunctional electrocatalysts for oxygen reduction and evolution reactions in alkaline media, comparable to the commercial Pt/C electrocatalyst. Both materials exhibited low charge transfer resistance and low onset potential for oxygen evolution.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Nutrition & Dietetics
Wangxing Yang, Na Han, Mingyuan Jiao, Xinlei Chang, Jue Liu, Qianling Zhou, Hai-Jun Wang
Summary: This study aimed to describe the diet quality of pregnant women and investigate the relationship between maternal diet and the prevalence of low birth weight and small for gestational age. The results showed that inadequate intake of fruits and dairy products during the second trimester was associated with an increased risk of low birth weight and small for gestational age. Sufficient consumption of fruits and dairy products during pregnancy is recommended to prevent these adverse outcomes.
BRITISH JOURNAL OF NUTRITION
(2023)
Article
Biochemistry & Molecular Biology
Zheying Zhang, Wenyan Fan, Qingzu Gao, Yifei Han, Jingyu Ma, Wuji Gao, Yuhan Hu, Huifang Zhu, Rui Yang, Haijun Wang, Baoshun Du, Zuoyang Zhang, Jiateng Zhong
Summary: We report a circRNA named hsa_Circ_0000826 (Circ_0000826) that is significantly downregulated in colorectal cancer (CRC) tissues and is associated with a poor prognosis in patients. Silencing Circ_0000826 promotes CRC cell proliferation, while overexpression of Circ_0000826 inhibits CRC cell proliferation. Furthermore, Circ_0000826 can bind to AUF1 and competitively inhibit its binding to c-MYC 30-UTR, leading to decreased c-MYC expression and cell proliferation.
JOURNAL OF GENETICS AND GENOMICS
(2023)
Article
Energy & Fuels
Mengyu Li, Yiqing Zeng, Xuelin Li, Shule Zhang, Jing Liu, Qin Zhong
Summary: A novel surface carbon-oxygen-groups grafted TiO2 catalyst was developed by calcining the solid mixture of polyethylene glycol and TiO2, which exhibited excellent NH3-SCR denitration activity with NOx conversion up to 80% above 210 degrees Celsius. The superior activity of the catalyst was attributed to the formation of lactone and carboxyl groups, promoting the adsorption and activation of NO and NH3 species. NH3 also inhibited the decomposition of carbonyl groups, resulting in good long-term stability of the catalyst.
Article
Materials Science, Ceramics
Liya Cheng, Qiuqiu Lyu, Zongxun Li, Yang Liu, Chao Jin, Na Xu, Qin Zhong, Tenglong Zhu
Summary: Modifying the thin film electrolyte improves the performance, reliability, and durability of solid oxide fuel cells (SOFCs).
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Chemistry, Physical
Yan Yang, Shipeng Wan, Ruonan Wang, Man Ou, Xiao Fan, Qin Zhong
Summary: A thin NiFe-MOF layer grafted O-vac-BVO photoanode was fabricated, which improved charge separation and transfer efficiency, and effectively inhibited photocorrosion, resulting in outstanding photocurrent density and chemical stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Oceanography
Lingchunzi Li, Jing Wang, Haijun Wang, Xin Jin, Lijing Du
Summary: Driven by globalization and the COVID-19 outbreak, the Belt and Road Initiative (BRI) is more important than ever in the post-pandemic era. To improve crossborder transportation and promote economic recovery, we design an intermodal hub-and-spoke network based on the BRI. Our research shows that rail subsidies are positively correlated with construction subsidies, but may not affect the choice of hubs.
OCEAN & COASTAL MANAGEMENT
(2023)
Article
Engineering, Chemical
SuSu Liu, Zheng Lian, Mingjia Zhang, Shule Zhang, Qin Zhong
Summary: A novel strategy combining oxidation and wet flue gas denitrification technology was proposed to remove NOx pollutant from sintering flue gases. The addition of CuCl2 as an additive into the sulfite solution enhanced the removal of NO2. The formation of CuCl during the reaction of CuCl2 and SO32- was found to be more effective in removing NO2. The cyclic use of CuCl2 was confirmed by the mutual transformation between CuCl and Cu2+ substance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Obstetrics & Gynecology
Yuelong Ji, Jinhui Xu, Tao Su, Lizi Lin, Shuang Zhou, Heling Bao, Zheng Liu, Shusheng Luo, Xiangrong Xu, Na Han, Hai-Jun Wang
Summary: This study investigated the effect of LT4 treatment on fetal growth and birth weight among pregnant women with mild subclinical hypothyroidism and TPOAb(-). The results showed that LT4 treatment was associated with decreased fetal head circumference in this population.
BMC PREGNANCY AND CHILDBIRTH
(2023)
Article
Crystallography
Lijuan Zhang, Xiaolong Jiang, Jing Chen, Chuanchao Zhang, Lianghong Yan, Haijun Wang, Xiaoyu Luan, Wei Liao, Xiaodong Jiang, Yong Jiang
Summary: In this paper, single-layer SiO2 sol-gel antireflection films pretreated by triple-frequency laser with different parameters are characterized by macroscopical parameters such as transmittance, refractive index, and thickness. The law of surface modification and the defect removal mechanism of the SiO2 sol-gel antireflection film by laser conditioning are obtained. It is found that laser conditioning can reduce the thickness of the film, introduce densification, and eliminate micro-defects, which is the main reason for improving the laser damage resistance of films.
Article
Chemistry, Multidisciplinary
Xinyao Dong, Zhihui Yao, Yuting Li, Juan Wang, Qin Zhong
Summary: In this study, a high-performance and low-cost bifunctional catalyst BZIF-C@LDH was successfully designed for oxygen reduction and oxygen evolution reactions in rechargeable Zn-air batteries (RZABs). The catalyst showed excellent performance and achieved a high energy density, which is close to the theoretical energy density when compared to commercial catalysts.
Article
Radiology, Nuclear Medicine & Medical Imaging
Mengqi Wang, Chengbin Duan, Shun Yao, Jinping Chen, Shaolin Zhang, Zongming Wang, Bin Hu, Zhigang Mao, Haijun Wang, Yonghong Zhu, Wenli Chen
Summary: Monitoring postoperative biochemical levels in acromegaly patients, especially those in developing countries, is a challenge. In this study, a mobile and low-cost method using MobileNetv2-based transfer learning algorithm was established to predict biochemical remission. The algorithm showed high accuracy in predicting biochemical remission in both the training and validation cohorts.
QUANTITATIVE IMAGING IN MEDICINE AND SURGERY
(2023)
Article
Nutrition & Dietetics
Jinlang Lyu, Zhongshang Wan, Zheng Liu, Shuang Zhou, Xiangxian Feng, Aiyu Gao, Yi Lin, Fang Zhang, Haijun Wang
Summary: In addition to genetic factors and energy-related behaviors, psycho-cultural factors are important in the development of obesity. Improving body image has been suggested as an effective method for managing body weight. This study aimed to evaluate the effects of a multifaceted intervention on the body image of children and explore whether body image played a mediating role in changes in adiposity indicators.
Article
Clinical Neurology
Sijie Chen, Longsheng Huang, Guihua Liu, Jie Kang, Qinfang Qian, Jingrong Wang, Rong Wang, Lizhen Zheng, Haijun Wang, Ping Ou
Summary: Acupuncture can improve symptoms of autism spectrum disorder (ASD), and the improvement of the serotonin system may be one of the main regulatory mechanisms of acupuncture for treating ASD.
NEUROPSYCHIATRIC DISEASE AND TREATMENT
(2023)
Article
Public, Environmental & Occupational Health
Zheng Liu, Zhi-Han Yue, Li-Ming Wen, Jinfeng Zhao, Shuang Zhou, Ai-Yu Gao, Fang Zhang, Hai-Jun Wang
Summary: This study aimed to assess the time-specific intervention effects on school-aged children's physical activity. The findings showed that the intervention led to an increase in moderate-to-vigorous physical activity within in-school periods but did not improve out-of-school physical activity. The results suggest the need to tailor intervention components to specific periods of a day to improve school-aged children's overall pattern of physical activity.
JOURNAL OF PUBLIC HEALTH-HEIDELBERG
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Mengqi Wang, Chengbin Duan, Shun Yao, Jinping Chen, Shaolin Zhang, Zongming Wang, Bin Hu, Zhigang Mao, Haijun Wang, Yonghong Zhu, Wenli Chen
Summary: This study presents a mobile and low-cost method to predict biochemical remission in acromegaly patients after surgery. The results show that the MobileNetv2-based transfer learning algorithm can accurately predict the likelihood of biochemical remission in acromegaly patients, providing a potential solution for those who live in remote areas or regions with limited medical resources.
QUANTITATIVE IMAGING IN MEDICINE AND SURGERY
(2023)
