Article
Chemistry, Multidisciplinary
Daying Guo, Zhixin Wan, Yan Li, Bin Xi, Chengxin Wang
Summary: An efficient and durable oxygen evolution reaction (OER) electrocatalyst TiN @ Co5.47N was constructed through plasma nitriding and atomic layer deposition (ALD) CoxN process, showing high electrocatalytic activity and long-term stability. The synergistic electronic interaction between TiN and ALD Co5.47N, as well as the formation of a protective yet active CoTi layered double hydroxides (CoTi LDH) layer, are speculated to be responsible for the superior OER performance.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Ruoyu Zhang, Gerben van Straaten, Valerio di Palma, Georgios Zafeiropoulos, Mauritius C. M. van de Sanden, Wilhelmus M. M. Kessels, Mihalis N. Tsampas, Mariadriana Creatore
Summary: This study conducts an in-depth investigation on the electrochemical activation of CoPi-based catalysts, demonstrating that the pristine chemical composition strongly influences its activity in the OER, as well as its changes after prolonged exposure to the electrolyte. The activated CoPi films show an increase in electrochemical active surface area with the number of CV cycles, while phosphorous progressively leaches out from the film.
Article
Biochemistry & Molecular Biology
Shicong Jiang, Wan-Yu Wu, Fangbin Ren, Chia-Hsun Hsu, Xiaoying Zhang, Peng Gao, Dong-Sing Wuu, Chien-Jung Huang, Shui-Yang Lien, Wenzhang Zhu
Summary: The application of (In, Al, Ga)N materials in photovoltaic devices has attracted much attention. However, to deposit high-quality GaN material as a foundation is essential. Plasma-enhanced atomic layer deposition (PEALD) combines the advantages of ALD process with plasma utilization and has been used to deposit thin films with various requirements. In this study, NH3-containing plasma was used to eliminate the residual oxygen during the growth of GaN films, which significantly improved the quality of the films. The plasma power controlled NH2, NH, and H radicals showed strong influence on the oxygen content, growth rate, crystallinity, and surface roughness of the GaN films.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Nanoscience & Nanotechnology
Ting Zhang, Fang Cheng, Chuyi Zhao, Hao Liu, Xiaokai Song, Xiaopeng Li, Wei Luo
Summary: In this study, a novel strategy of enriching atomically dispersed cobalt species in nitrogen-doped carbon was reported, resulting in an increase of Co atom density in the ultrathin carbon shell. The hollow carbon nanosphere with reduced shell thickness obtained by a carbothermic reaction between carbon and ZnO template, demonstrated promising oxygen reduction reaction performance in both strong acidic and alkaline electrolytes.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Yongmin Kim, Shicheng Xu, Joonsuk Park, Anup Lal Dadlani, Olga Vinogradova, Dilip Krishnamurthy, Marat Orazov, Dong Un Lee, Sam Dull, Peter Schindler, Hyun Soo Han, Zhaoxuan Wang, Tanja Graf, Thomas D. Schladt, Jonathan E. Mueller, Ritimukta Sarangi, Ryan Davis, Venkatasubramanian Viswanathan, Thomas Francisco Jaramillo, Drew C. Higgins, Fritz B. Prinz
Summary: The study developed Pt3Ti electrocatalysts using atomic layer deposition and thermal reductive annealing, which exhibited high activity and stability in the oxygen reduction reaction. Experimental and computational results showed that Pt enrichment on the Pt3Ti enhanced activity, while the intrinsic stability of the Pt3Ti phase provided durability, surpassing the performance of other PtTi catalysts reported to date.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
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
Chemistry, Multidisciplinary
Raul Zazpe, Jhonatan Rodriguez Pereira, Sitaramanjaneya M. Thalluri, Ludek Hromadko, David Pavlinak, Eva Kolibalova, Michal Kurka, Hanna Sopha, Jan M. Macak
Summary: 2-dimensional FeSx nanosheets of different sizes were synthesized and used as an electrocatalyst for the hydrogen evolution reaction (HER). The results showed outstanding long-term stability (> 65 h) and enhanced catalytic activity, which were attributed to the in situ morphological and compositional changes in the nanosheets during HER. The transformation of the nanosheets into core-shell nanoparticles with higher catalytic surface and newly created catalytic sites was observed.
Article
Chemistry, Multidisciplinary
Raul Zazpe, Jhonatan Rodriguez Pereira, Sitaramanjaneya M. Thalluri, Ludek Hromadko, David Pavlinak, Eva Kolibalova, Michal Kurka, Hanna Sopha, Jan M. Macak
Summary: 2D FeSx nanosheets of different sizes are synthesized as electrocatalysts for the hydrogen evolution reaction (HER) by applying atomic layer deposition (ALD) cycles on TiO2 nanotube layers and graphite sheets. These nanosheets exhibit excellent long-term stability (>65 h) and enhanced catalytic activity in alkaline media, with a notable decrease in the initial HER overpotential value (up to 26%). The enhanced catalytic activity is attributed to the in situ morphological and compositional changes in the FeSx nanosheets, forming iron oxyhydroxide-iron oxysulfide core-shell nanoparticles with higher catalytic surface area and newly created Fe-based HER catalytic sites.
Article
Chemistry, Physical
Yan Chen, Long Zhao, Rui Yuan, Zhaoli Xue, Aijian Wang, Hui Xu, Ming Cheng, Haijun Xu, Jianming Zhang
Summary: The feasibility of the D-pi-A design rule in constructing electrocatalysts for oxygen reduction reaction (ORR) is investigated. Rational design of the molecular structure with appropriate donor, pi bridge, and acceptor units leads to composite catalysts with excellent electrocatalytic performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Green & Sustainable Science & Technology
Si Liu, Shima Farhoosh, Paul Beyer, Stefan Mebs, Ivelina Zaharieva, Michael Haumann, Holger Dau
Summary: The binding mode and mechanistic role of redox-inert ions for a cobalt-based oxyhydroxide material (CoCat) under neutral pH in potassium-phosphate (KPi) electrolyte were investigated. It was determined that potassium ions bind non-specifically within water layers and do not play a role in charge-compensation during the reaction. It was concluded that the ion flow is compensated by protons instead of potassium or phosphate ions. These findings may have implications for other volume-active OER catalyst materials and amorphized near-surface regions of microcrystalline materials.
ADVANCED SUSTAINABLE SYSTEMS
(2023)
Article
Chemistry, Physical
Aein Babadi, Scott Monaghan, Christopher O'Rourke, Michael Braun, Lindsey Brock, Huikai Cheng, Ted Tessner, Paul K. Hurley, Andrew Mills, Paul C. McIntyre
Summary: TiO2-IrOx alloys synthesized by atomic layer deposition (ALD) were used as anodes for water and chloride oxidation. The effects of alloy composition on their electrochemical activity and nanoscale structures were investigated. The TiO2-IrOx alloy with 38% iridium showed the highest electronic conductivity and electrochemical performance, with the lowest activation overpotentials for both oxygen and chloride evolution reactions. It also exhibited the largest photovoltage during water oxidation experiments.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Materials Science, Composites
Mengqiu Xu, Fuchun Xu, Kaili Zhu, Xudong Xu, Ping Deng, Wenbo Wu, Wei Ye, Zhongti Sun, Peng Gao
Summary: The use of ALD technique on silicon nanowires has enhanced the production rate and efficiency of ammonia, achieving the conversion of nitrate to ammonia successfully.
COMPOSITES COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Junyuan Xu, Junjie Li, Zan Lian, Ana Araujo, Yue Li, Bin Wei, Zhipeng Yu, Oleksandr Bondarchuk, Isilda Amorim, Vasiliki Tileli, Bo Li, Lifeng Liu
Summary: Efficient and stable oxygen evolution reaction (OER) is crucial for hydrogen production, and a catalyst with surface atomic-step enriched ruthenium-iridium (RuIr) nanocrystals dispersed on a metal organic framework (MOF) derived carbon support (RuIr@CoNC) demonstrates outstanding catalytic performance in various electrolytes. The catalyst shows high mass activities and can sustain continuous OER electrolysis with minimal degradation, attributed to abundant atomic steps maximizing exposure of active sites and strong interaction leading to homogeneous dispersion and firm immobilization of RuIr catalysts.
Article
Chemistry, Multidisciplinary
Daying Guo, Zhixin Wan, Guoyong Fang, Mengqi Zhu, Bin Xi
Summary: A highly active and durable electrocatalyst for the hydrogen evolution reaction (HER) has been reported. The catalyst demonstrates excellent performance in alkaline and neutral mediums. A ternary composite material with a tandem interface strategy is used, which allows for superior HER performance through the modulation of heterointerface and intermediates electronic structure.
Article
Chemistry, Physical
Chun-Yuan Wang, Chun-Yi Chou, Han-Fang Shiue, Hsing-Yang Chen, Chen-Hsiang Ling, Jing-Jong Shyue, Miin-Jang Chen
Summary: In this paper, the authors investigate a method to alter the work function of TiN thin films using atomic layer annealing (ALA) technique. The results show that by incorporating layer-by-layer atomic layer deposition cycle with argon plasma treatment, the density, stoichiometry, and crystallinity of TiN thin films can be significantly improved at a low temperature of 300 degrees C, resulting in a wide tunability of the TiN metal gate's work function.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Bin Yang, Daying Guo, Peirong Lin, Ling Zhou, Jun Li, Guoyong Fang, Jinyi Wang, Huile Jin, Xi'an Chen, Shun Wang
Summary: We have successfully constructed a new type of intercalation membrane material by covalently grafting organic tris(hydroxypropyl)phosphine (THPP) molecules onto hydroxylated multi-walled carbon nanotubes (CNT-OH) as a functional interlayer for the advanced lithium-sulfur batteries. The as-assembled interlayer has been demonstrated to be responsible for fast conversion kinetics of polysulfides, inhibition of polysulfide shuttle effect, as well as the formation of stable solid electrolyte interphase (SEI) layer.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Materials Science, Multidisciplinary
Xuan Zhong, Zhixin Wan, Bin Xi
Summary: In this work, metallic Co films were grown by thermal atomic layer deposition (T-ALD) using RCpCo(CO)2 and tert-Butyl amine as co-reactants. The study found that CpCo(CO)2 exhibited a higher growth rate on Si substrate compared to TMSCpCo(CO)2. Thermal annealing and Pt substrate promoted the crystallization and growth of Co crystals. The ALD-Co films grown by CpCo(CO)2 showed low resistivity and good conformality, suggesting their significant application potential.
Article
Chemistry, Multidisciplinary
Daying Guo, Zhixin Wan, Guoyong Fang, Mengqi Zhu, Bin Xi
Summary: A highly active and durable electrocatalyst for the hydrogen evolution reaction (HER) has been reported. The catalyst demonstrates excellent performance in alkaline and neutral mediums. A ternary composite material with a tandem interface strategy is used, which allows for superior HER performance through the modulation of heterointerface and intermediates electronic structure.
Article
Chemistry, Multidisciplinary
Daying Guo, Xu Zhang, Menglan Liu, Zhisheng Yu, Xi'an Chen, Bin Yang, Zhen Zhou, Shun Wang
Summary: This study presents a simple and effective strategy for high-performance lithium-sulfur batteries by introducing single Mo-N-4 atoms into N-doped carbon nano-flower matrix as sulfur hosts. Experimental and theoretical evidences demonstrate that these single atoms can regulate the characteristics of sulfur and improve the cycling and rate performance of the batteries.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Xueyu Wang, Daying Guo, Lin Yang, Minghuan Jin, Xi'an Chen, Shun Wang
Summary: Room temperature sodium-sulfur batteries are highly attractive for their low cost, environmental friendliness, and high energy density. However, the slow redox kinetics and polysulfides shuttle pose challenges for their practical application. This paper analyzes the existing problems and solutions, mainly focusing on the research progress of carbon-based cathode materials and discussing two main directions: adsorption and electrocatalysis. Finally, the future research direction of advanced sodium-sulfur batteries is prospected.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Qian Lin, Daying Guo, Ling Zhou, Lin Yang, Huile Jin, Jun Li, Guoyong Fang, Xi'an Chen, Shun Wang
Summary: Needled-like heterostructure Co1-xS/Co(OH)F catalysts with excellent OER catalytic performance were successfully fabricated. The advantages of this catalyst design include increased active sites, optimized adsorption and desorption energy in the OER process, and the enhanced local electric field effect of the needle-like structure.
Review
Chemistry, Multidisciplinary
Lin Yang, Ling Zhou, Mei Wang, Yuheng Qi, Daying Guo, Haocheng Li, Xi'an Chen, Shun Wang
Summary: Electrocatalytic water splitting is an effective strategy to convert intermittent energy into renewable hydrogen energy. Seawater, as a rich and sustainable resource, has attracted increasing attention in electrocatalysis. However, seawater poses challenges to the oxygen evolution reaction (OER) due to the presence of various interfering elements. This review focuses on the recent progress in transition metal-based OER electrocatalytic materials for seawater, with an emphasis on eliminating the competitive chlorine evolution reaction.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Leyi Li, Zhixin Wan, Quan Wen, Zesheng Lv, Bin Xi
Summary: This paper reports the atomic layer deposition (ALD) of novel ternary ZnCoxOy films with p-type semiconducting behavior. The study optimized the deposition of ZnO and Co3O4 using commercial precursors, resulting in a spinel structured ZnCoxOy film with smooth surface, good crystallinity, and high purity. As the concentration of Co element increased, the transmittance and bandgap of the material decreased. The ZnCoxOy film was found to be more stable than its p-type analog Co3O4 film, and it exhibited good rectification behaviors and low reverse leakage when used in p-n diode fabrication.
Review
Materials Science, Multidisciplinary
Minhuan Jin, Jinyi Wang, Kaiqian Weng, Tianxing Sun, Daying Guo, Xueyu Wang, Xi'an Chen, Shun Wang
Summary: Fluorinated solid-state electrolytes (FSSEs) have been widely used in all-solid-state lithium batteries (ASSLBs) due to their good compatibility, wide electrochemical windows, and stable chemical stability. However, challenges such as ionic conductivity, chemical stability, and current limitation hinder the practical application of fluorinated solid electrolytes. This review discusses the development history of FSSEs, analyzes recent advances in improving ion conductivity, chemical stability, and current limit through structural design, interface regulation strategies, etc., and prospects the design requirements for future generations of FSSEs, focusing on simple one-step synthesis methods, room temperature ionic conductivity improvement, and optimization of the electrochemical stability window of FSSEs.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Zhiming Zhou, Peirong Lin, Shiqiang Zhao, Huile Jin, Yudan Qian, Xi'an Chen, Xinyue Tang, Qingcheng Zhang, Daying Guo, Shun Wang
Summary: This study synthesizes cuboid-like anhydrous CoC2O4 particles and investigates their application in lithium-ion and lithium-sulfur batteries. The results demonstrate that CoC2O4 can serve as a high-performance electrode material, delivering high reversible capacity, good rate capability, and outstanding cycling stability.
Article
Chemistry, Multidisciplinary
Jinyi Wang, Ling Zhou, Daying Guo, Xueyu Wang, Guoyong Fang, Xi'an Chen, Shun Wang
Summary: A flower-shaped NiS2-WS2 heterojunction was prepared to improve the reaction kinetics of sulfur in lithium-sulfur batteries. The heterojunction enhanced mass and charge transfer, and acted as an electron receptor and a donor for bidirectional catalytic activity. The results showed excellent discharge performance and cycle stability.
Article
Chemistry, Applied
Bin Yang, Jinyi Wang, Yuheng Qi, Daying Guo, Xueyu Wang, Guoyong Fang, Xi'an Chen, Shun Wang
Summary: A systematic modification of separators using bismuth oxycarbonate nanoflowers decorated conductive carbon is proposed, which effectively addresses the shuttle effect of polysulfides in lithium-sulfur batteries and improves battery performance and cycling stability.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Lin Yang, Qian Lin, Daying Guo, Lianhui Wu, Zhixi Guan, Huile Jin, Guoyong Fang, Xi'an Chen, Shun Wang
Summary: The conversion of metal-organic frameworks into nitrogen-doped bimetallic layered double hydroxides through corrosion strategy and nitrogen plasma technology leads to improved electrocatalytic activity and stability. The regulation of local coordination environment and oxygen vacancy defects enhances the performance of the catalyst for oxygen evolution reaction. This work provides a simple strategy for the preparation of superior electrocatalytic catalysts.
INORGANIC CHEMISTRY
(2023)
Review
Green & Sustainable Science & Technology
Fan Wu, Ling Zhou, Daying Guo, Bin Xi
Summary: This review summarizes the recent developments in the implementation of ALD in various electrocatalytic systems, particularly in electrode interface preparation and modulation.
ADVANCED ENERGY AND SUSTAINABILITY RESEARCH
(2022)