Article
Engineering, Environmental
Mei Zhang, You Xu, Hugang Zhang, Zhongyao Duan, Tianlun Ren, Ziqiang Wang, Xiaonian Li, Liang Wang, Hongjing Wang
Summary: Pd-based materials show great potential as alternatives to Pt for oxygen reduction reactions (ORR). By modifying the electronic structure and support effect, the performance of Pd-based catalysts in ORR can be significantly improved. The proposed synthetic method provides a feasible approach for the rational design of heteroatoms-doped carbon-metal composites with high performance in ORR and other energy applications.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Analytical
Yalin Liao, Hui Chen, Changrui Ou, Lishi Bao, Run Li, Hongbo Liu
Summary: A phosphorus-enriched nitrogen and phosphorus co-doped graphene catalyst (PANAGr) with outstanding properties has been reported, showing high ORR activity in alkaline electrolyte solution.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Wenjie Duan, Chen Wang, Peng Sun, Yinggang Sun, Yanqiong Zhuang, Jigang Wang, Zhongfang Li
Summary: In this study, three-dimensional Fe-N/P-co-doped graphene materials with high oxygen reduction reaction and oxygen evolution reaction catalytic activity were prepared. The catalyst exhibited a large surface area and dense network of pores, leading to improved mass transfer efficiency. The catalyst also showed high electrical efficiency and stability, making it a potential bifunctional cathode catalyst for zinc-air batteries.
ACS APPLIED NANO MATERIALS
(2023)
Review
Polymer Science
Kumara Ramanatha Datta Kasibhatta, Iyyappan Madakannu, Iniya Prasanthi
Summary: This review critically examines the rapidly developing field of oxygen electrocatalysis, focusing on the design of efficient hetero atom doped graphene-based metal-free catalysts, defect engineering, and co-doping with special emphasis on electrochemical activity in acidic media. The latest trends in designing hetero atom doped graphene nanoarchitectonics for ORR and OER, along with important electrochemical parameters, are outlined. Additionally, it highlights the design of efficient and robust bi-functional hetero atom doped graphenes elucidating structure-property relationships toward multifunctional OER/ORR behavior.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Santosh K. Singh, Kotaro Takeyasu, Kaito Homma, Shigeharu Ito, Takashi Morinaga, Yuto Endo, Moeko Furukawa, Toshiyuki Mori, Hirohito Ogasawara, Junji Nakamura
Summary: The activity of pyridinic-nitrogen-doped graphene for the oxygen reduction reaction (ORR) decreases under acidic conditions. By increasing proton conductivity in the hydrophobic cavity, the deactivation can be prevented.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Engineering, Environmental
Jingjing Zhang, Wei Liu, Feng He, Min Song, Xiao Huang, Tao Shen, Jingwen Li, Chang Zhang, Jian Zhang, Deli Wang
Summary: This study demonstrates the efficient performance of highly dispersed cobalt atoms anchored in porous N-doped carbon for H2O2 electrosynthesis. The p-Co-N-C material shows H2O2 selectivity over 90% and a production rate of 2460.8 mg L^-1h^-1, along with a malachite green degradation rate of 90% within 8 min. This is attributed to the highly dispersed Co-N-x species and hierarchical porous architecture.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Guoquan Zhang, Jiayu Xing, Yuanyuan Zhao, Fenglin Yang
Summary: A novel porous structure design was developed in this study, where two-dimensional nanosheets were vertically anchored on a three-dimensional graphene framework, resulting in excellent bifunctional oxygen electrocatalytic activity and enhanced performance and stability of zinc-air batteries.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Analytical
Chao Cheng, Yi Li, Chanez Maouche, Bing Li, Yazhou Zhou, Shuang Wang, Xiaonong Cheng, Juan Yang
Summary: Utilizing low-cost inorganic fertilizers as precursors, N, P-co-doped porous reduced graphene oxide (NP-PrGO) was successfully fabricated and displayed excellent ORR performance, superior methanol tolerance, and outstanding electrochemical stability compared to Pt/C catalyst.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Physical
Nguyet N. T. Pham, Van Kieu Thuy Nguyen, Hengquan Guo, Seung Geol Lee
Summary: The challenges of global warming and climate change can be overcome by using alternative and renewable energy sources for sustainable energy conversion. Polymer electrolyte membrane fuel cells (PEMFCs) are considered as next-generation technologies for green economy. This study investigates the electronic properties and electrocatalytic activity of P-doped monovacancy and divacancy of bilayer graphene in a sulfuric acid solution, and suggests potential strategies for designing efficient non-PGM catalysts for the oxygen reduction reaction (ORR).
Article
Chemistry, Applied
Mingwen Wang, Lei Cao, Zhenhuan Li, Kunmei Su
Summary: The study synthesized a porous hollow carbon catalyst with high-efficiency ORR catalytic activity, exhibiting excellent performance under both acidic and alkaline conditions. The catalyst showed promising performance in zinc-air batteries, indicating its significant potential for practical applications.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Inorganic & Nuclear
Jiewen Liu, Jian Zhang, Mingjie Xu, Chuanjin Tian, Yanhao Dong, Chang-An Wang
Summary: The primary challenge for efficient H2 evolution and hydrogen energy conversion is to develop highly active and stable catalysts with simple and reliable preparation processes. In this study, a porous carbon supported low-Pt alloy catalyst (Pt3Co/Co@C) was designed and synthesized, which exhibited excellent activity and mass activity for hydrogen evolution reaction and oxygen reduction reaction, as well as long-term stability.
INORGANIC CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Xin Tong, Mohamed Cherif, Gaixia Zhang, Xinxing Zhan, Jugang Ma, Ali Almesrati, Francois Vidal, Yujun Song, Jerome P. Claverie, Shuhui Sun
Summary: Nitrogen and phosphorus-codoped graphene dots supported on nitrogen-doped three-dimensional graphene were synthesized by freezing-annealing process, serving as a metal-free catalyst for oxygen reduction reaction. The catalyst exhibited excellent ORR activity, higher tolerance to methanol, and better stability compared to commercial Pt/C, indicating the potential for various applications.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Chemical
Chien-Te Hsieh, Chih-Peng Kao, Yasser Ashraf Gandomi, Ruey-Shin Juang, Jeng-Kuei Chang, Ren-Shuo Zhang
Summary: Boron- and nitrogen-codoped graphene quantum dots have been successfully synthesized and used as metal-free electrocatalysts for oxygen reduction reaction (ORR). The catalysts exhibit ultra-high electrochemically active surface area and exceptional durability in both acidic and alkaline electrolytes. The synergistic effect of boron and nitrogen doping significantly enhances the ORR catalytic activity.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Nanoscience & Nanotechnology
Chanez Maouche, Juan Yang, Samir H. Al-Hilfi, Xiafang Tao, Yazhou Zhou
Summary: Introducing thiourea molecules in the catalyst structure can significantly improve the density of FeN4 active sites and the Brunauer-Emmett-Teller surface area, leading to enhanced catalytic performance for iron atoms in the oxygen reduction reaction.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Bing Li, Tingting Xiang, Yuqi Shao, Fei Lv, Chao Cheng, Jiali Zhang, Qingchao Zhu, Yifan Zhang, Juan Yang
Summary: In this study, an efficient metal-free catalyst consisting of N, S co-doped graphene nanoribbons (N, S-GNR-2s) was developed for oxygen reduction reactions (ORRs). The catalyst exhibited better ORR property compared to the control samples.
Article
Chemistry, Physical
Qi-Wen Chen, Ze-Qing Guo, Jian-Ping Zhou
Summary: Multifunctional continuous solid solutions NFMTO-x were successfully synthesized via a one-step hydrothermal method by controlling the ratio of Mg and Fe. The NFMTO-x materials exhibited enhanced visible light response, effective adsorption and photocatalytic degradation of organic pollutants, CO2 methanation capability, and easy recyclability due to their magnetic properties. This research provides a significant multifunctional material for water purification.
APPLIED SURFACE SCIENCE
(2024)
Review
Chemistry, Physical
George E. Stan, Maziar Montazerian, Adam Shearer, Bryan W. Stuart, Francesco Baino, John C. Mauro, Jose M. F. Ferreira
Summary: Bioactive glasses have the ability to form strong bonds with tissues and release therapeutic ions. However, their biomechanical compatibility limits their use in load-bearing applications. The use of magnetron sputtering technology to fabricate BG coatings shows promise in improving their efficacy and potential for application.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zhaoxuan Wang, Zhicheng Yan, Zhigang Qi, Yu Feng, Qi Chen, Ziqi Song, Meng Huang, Peng Jia, Ki Buem Kim, Weimin Wang
Summary: The corrosion behavior of Fe-60 and Fe-83 ribbons in 0.6 M NaCl was studied. Fe-60 exhibited a local corrosion mode and formed a stable passivation film with higher corrosion resistance, while Fe-83 showed a combination of local and global corrosion modes and had lower corrosion resistance. Controlling the precipitation of nanocrystalline phases and increasing the POx content in the passivation film significantly improved the corrosion resistance of Fe-based glassy alloys.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hao-Kai Peng, Sheng-Yen Zheng, Wei-Ning Kao, Ting-Chieh Lai, Kai-Sheun Lee, Yung- Hsien Wu
Summary: This study investigates the effects of high energy/fluence proton radiation on the performance of HfZrOx-based FeFETs memory with different Zr content. The results show that the characteristics of FeFETs are influenced by proton radiation, and the extent of the influence depends on the Zr content. FeFETs with 50% Zr content exhibit minimal changes in memory window and demonstrate good endurance and retention performance.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Martin Hruska, Jan Kejzlar, Jaroslav Otta, Premysl Fitl, Michal Novotny, Jakub Cizek, Oksana Melikhova, Matej Micusik, Peter Machata, Martin Vrnata
Summary: This paper presents a detailed study on the hydrogen sensing capabilities of highly nanoporous black gold films. The films exhibit fast response and recovery times at low temperatures. Different levels of nanoporosity were prepared and tested to investigate the sensing properties, and it was found that nanoporous black gold is suitable for hydrogen sensing. The sensitivity of the film depends on its nanoporosity.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yupu Wang, Gaofeng Teng, Chun To Yiu, Junyi Zhu
Summary: In the study of BM-SCO and HSCO thin films, it was found that H vacancies tend to prefer sites near the external surface or oxygen vacancy channels (OVCs), while H interstitials prefer sites of oxygen on a layer that contains six-fold coordinated Co. These findings not only enrich the understanding of complex surface phenomena of defect formation but also provide an explanation for the reversibility during phase transformation.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jiafeng Lu, Linping Teng, Qinxiao Zhai, Chunhua Wang, Matthieu Lancry, Ye Dai, Xianglong Zeng
Summary: In this study, we achieved full control of fiber nanograting orientation by manipulating laser polarization, and tailored space variant fiber nanogratings, which expanded the diversity in fiber nanograting engineering.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yibo Liu, Yujie Tao, Yue Liu, Qi Sun, Qinrong Lin, Kexin Kang, Qinghua Zhang, Qingjie Sun
Summary: This study investigates the wettability of the Ti-Cu-Fe multi-metal system, specifically the wetting behaviors of CuSi3 droplets on TC4 and 304SS plates. The results show that the CO2 + Ar gas atmosphere significantly affects interfacial mass transfer, thus influencing the wettability of the systems.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Jimei Liu, Fei Wang, Rong Guo, Yuqi Liu, Mengyu Zhang, Jaka Sunarso, Dong Liu
Summary: This study developed Co/MXene composites with anti-corrosion properties by varying the cobalt content. These composites exhibited remarkable electromagnetic absorption performance and high resistance to corrosion under various corrosive conditions. The study also revealed the mechanism of electron transfer from cobalt to MXene and the electromagnetic dissipation behavior originated from polarization loss alone.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Moujie Huang, Yongsong Ma, Jingbo Yang, Lingyun Xu, Hangqi Yang, Miao Wang, Xin Ma, Xin Xia, Junhao Yang, Deli Wang, Chuang Peng
Summary: Strong metal-support interactions (SMSIs) are important for enhancing catalytic activities and stability in thermal catalysis. This study demonstrates a method to create SMSIs in electrocatalysis using carbon nanotubes and Ru nanoparticles, resulting in excellent catalytic activity and stability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Ravi Trivedi, Brinti Mondal, Nandini Garg, Brahmananda Chakraborty
Summary: This study explores the potential of biphenylene as a nanocarrier for the delivery of the anticancer drug cisplatin. It is found that biphenylene offers physical stability, rapid release rate, solubility, and bio-compatibilities compared to other nanocarriers. The adsorption of cisplatin on the surface of biphenylene involves charge transfer from cisplatin to biphenylene. The drug is shown to be released at body temperature in an acidic environment. Biphenylene also exhibits excellent cytotoxicity activity and cellular uptake of the drug. Overall, biphenylene shows promise as a potential nanocarrier for cisplatin delivery.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Hyun Jeong, Hyeong Chan Suh, Ga Hyun Cho, Rafael Salas-Montiel, Hayoung Ko, Ki Kang Kim, Mun Seok Jeong
Summary: In this study, a potential platform to enhance Raman scattering and increase the number of observable Raman modes in monolayer transition metal dichalcogenides (TMDs) was proposed. The platform consisted of large-scale arrays of gold micropillars (MPs), which were able to enhance the Raman intensity of TMDs and make difficult-to-detect Raman modes observable. The platform showed great industrial advantages and wide applicability due to its low cost, simple process, large controllable area, and short process time.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Yasir Abbas, Shafqat Ali, Sajjad Ali, Waqar Azeem, Zareen Zuhra, Haoliang Wang, Mohamed Bououdina, Zhenzhong Sun
Summary: In this study, FeOx@SPNO-C core-shell nanospheres as a catalyst for degradation of sulfamethoxazole (SMX) were successfully synthesized. The synergistic interaction between FeOx and SPNO-C, high carbon charge density, and the presence of C = O groups and N/Fe-Nx sites were found to be key factors for the enhanced degradation of SMX.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Qiaoting Yang, Yuxiao Gong, Yan Qian, Zhou-Qing Xiao, Serge Cosnier, Xue-Ji Zhang, Robert S. Marks, Dan Shan
Summary: This study proposes a hierarchical confinement strategy to design Prussian blue nanoparticles (PB NPs) with satisfactory electrocatalytic ability and stability. The catalytic synthesis of PB NPs is achieved through a hydrothermal process, and the as-prepared PB@NH2MIL exhibits efficient electronic transmission and enhanced electrocatalytic properties.
APPLIED SURFACE SCIENCE
(2024)