Article
Nanoscience & Nanotechnology
Oshadie De Silva, Mandeep Singh, Sanje Mahasivam, Nasir Mahmood, Billy James Murdoch, Rajesh Ramanathan, Vipul Bansal
Summary: This study evaluates the influence of the oxyhydroxide impurity phase on the OER activity of two-dimensional beta-Co(OH)(2). The CoOOH impurity in beta-Co(OH)(2) nanosheets improves the thermodynamics of OER while adversely impacting the reaction kinetics.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Physical
Xinhua Lu, Tingjian Wang, Ming Cao, Wenjing Cheng, Huimin Yang, Hui Xu, Changchun He, Lin Tian, Zhao Li
Summary: Developing bifunctional electrocatalysts for water oxidation and urea oxidation reactions is essential for addressing the energy crisis and mitigating environmental damage. This study demonstrates the potential of a NiMoO4-Co(OH)2 heterostructure, where the rich heterointerfaces contribute to enhanced electrocatalytic performance. The optimized NiMoO4-Co(OH)2-100 catalyst exhibits superior activity, kinetics, and durability compared to NiMoO4 and Co(OH)2 alone.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Haitao Xu, Yan Zhao, Jingzhe Zhao
Summary: Three-dimensional sea urchin-like Co(OH)2 @ CuO nanocomposites were synthesized by an ammonia coordination strategy. The optimized Co(OH)2 @ CuO composite exhibited excellent oxygen evolution reaction activity and supercapacitor performance due to the synergistic effect between Co(OH)2 and CuO. It also showed a long-term durability and high capacitance when used as a supercapacitor electrode.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Qiling Li, Yanbo Liu, Songyang Niu, Chenhui Li, Chen Chen, Qingquan Liu, Jia Huo
Summary: This study presents a facile method for the rapid synthesis of NiCoFe-based metal-organic framework nanosheets using microwave assistance, achieving rapid synthesis and activation for oxygen evolution reaction (OER) with enhanced electrocatalytic activity.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Lei Tang, Meihan Xia, Shiyu Cao, Xin Bo, Shengbo Zhang, Yunlong Zhang, Xiao Liu, Lizhi Zhang, Liang Yu, Dehui Deng
Summary: This study identifies the reason for a 12-fold enhancement in oxygen evolution reaction (OER) activity by confining high-valence chromium into the lattice of pure cobalt oxyhydroxide. In-situ X-ray absorption spectroscopy reveals the formation of high-valence chromium with shortened Cr-O bond on the OER active site. Electrochemical impedance and infrared spectroscopy provide direct evidence of OOH* on the chromium site. The confined chromium is identified as the active site with improved bonding strength with O*, resulting in a lower overpotential than that on the cobalt site. This research elucidates the dynamic behavior of active sites and provides guidance for improving OER catalysts by introducing high-valence metals.
Article
Chemistry, Analytical
Mingyuan Chen, Yaxin Lv, Peilin Wu, Liuyan Dong, Xingquan He, Lili Cui
Summary: In this study, CeO2-Co(OH)(2) composites were prepared by adjusting the morphology and electron structure of metals for electrocatalytic water splitting. The optimized composite exhibited lower overpotentials and good stability, with significantly superior electroactivity compared to the bare materials and other control groups. Furthermore, stronger electron interaction was observed between Ce and Co.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Review
Chemistry, Multidisciplinary
Yanhui Song, Bingshe Xu, Ting Liao, Junjie Guo, Yucheng Wu, Ziqi Sun
Summary: This Review examines the latest advances in 2D metal (hydr)oxide nanosheets in electrocatalysis, discussing the relationship between electronic structure and catalytic properties, and proposing a series of strategies for enhancing electrocatalysis performance through electronic structure tuning. Perspectives on current challenges and future trends for designing 2D metal (hydr)oxide electrocatalysts with significant catalytic activity are outlined.
Article
Chemistry, Physical
Kun Dang, Shihao Zhang, Xuewei Wang, Wenming Sun, Ligang Wang, Yang Tian, Sihui Zhan
Summary: Through theoretical calculations, the (001) facet of orthorhombic CoSe2 was identified as an excellent candidate for OER. Nanosheets with controlled exposure of the (001) facet were synthesized, demonstrating superior performance compared to bulk materials and other CoSe2-based catalysts. Further studies showed that compression on a specific Co-Co path could significantly reduce the energy barrier for the rate-determining step during the OER process.
Article
Chemistry, Physical
Yuan Wang, Weiran Suo, Yunxia Huang, Maolin Zhang, Xiaoyong Lai, Zuozhong Liang, Zhimin Li
Summary: In this study, a simple strategy for preparing CoO catalysts for the oxygen evolution reaction (OER) is proposed by fine tuning the calcination temperature of the Co(OH)2 precursor. The catalytic activity of CoO is improved by forming oxygen vacancies and porous structures, leading to enhanced OER performance. This work introduces a simple strategy to improve the catalytic activity of transition metal-based oxides for the OER by improving their intrinsic catalytic activity and increasing the number of active sites simultaneously.
JOURNAL OF ALLOYS AND COMPOUNDS
(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.
Article
Chemistry, Multidisciplinary
Yakun Tian, Ming Wen, Aijian Huang, Qingsheng Wu, Zhiguo Wang, Quanjing Zhu, Tao Zhou, Yongqing Fu
Summary: A novel nano-Pt/Nb-doped Co(OH)(2) nanosheet is synthesized using water-bath treatment and solvothermal reduction approaches. The synthesized Pt/Nb-Co(OH)(2) nanosheet shows outstanding electrocatalytic performances for alkaline hydrogen evolution reaction (HER), achieving high stability, high mass activity, and low overpotential. Nb-doping optimizes the hydrogen adsorption free energy, accelerates the Heyrovsky step, and enhances the water activation for HER.
Article
Electrochemistry
Mandana Amiri, Ali Afruz, Mehran Nozari-Asbemarz, Abolfazl Bezaatpour, Heinrich Vocke, Dereje H. Taffa, Michael Wark
Summary: A novel electrocatalyst with high ability of water splitting reactions was designed and synthesized using polyphenols extracts from Camellia sinensis plant and folic acid along with magnetic cores. The catalyst exhibited high performance for overall water splitting, with low overpotential and high Tafel slopes.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Mehran Nozari-Asbemarz, Mandana Amiri, Hamideh Imanzadeh, Abolfazl Bezaatpour, Sima Nouhi, Pouya Hosseini, Michael Wark, Davod Seifzadeh
Summary: Water splitting is a promising reaction for sustainable energy storage, with oxygen evolution reaction (OER) being a critical bottleneck. Researchers have successfully developed efficient electrocatalysts through the synthesis of mixed metal oxide composites and a simple dip-coating method. These electrocatalysts exhibit excellent stability and high performance, making them important for technological water splitting systems.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Fekadu Tsegaye Dajan, Marshet Getaye Sendeku, Binglan Wu, Ning Gao, Eyaya Fekadie Anley, Jing Tai, Xueying Zhan, Zhenxing Wang, Fengmei Wang, Jun He
Summary: In this work, researchers introduced Ce atom into the amorphous iron oxyhydroxide nanosheet to improve the electrocatalytic activity and stability for oxygen evolution reaction (OER). The CeFeOxHy electrode showed low overpotential and small Tafel slope at a current density of 100 mA cm(-2), and it can work continuously for over 300 hours. This study provides a design strategy for highly active, low-cost, and durable materials by interfacing high valent metals with earth-abundant oxides/hydroxides.
Article
Chemistry, Physical
Jingyuan Qiao, Dingding Dong, Quanying Lin, Lingqiao Kong, Wenjie Jiang, Wei He, Zhengming Sun
Summary: In this study, a Zr and Ir codoped SrCo0.8Fe0.2O3-delta nanosheet with a two-dimensional porous structure was prepared using a self-template strategy. The porous configuration enhanced the accessible surface area of the ions, and the Zr and Ir substitution significantly improved the intrinsic activity of the sample. As a result, the SCFZI porous nanosheet exhibited low overpotential and high stability in 0.1 M KOH, providing an approach for developing perovskite catalysts with high activity and stability.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Wanxing Zhang, Peixing Shen, Lizhi Qian, Yuan Wang, Hamidreza Arandiyan, Hitham Mahmoud, Xuemei Liu, Jun Wang, Xiaoliang Wang, Yanguo Liu, Hongyu Sun, Yanlong Yu
Summary: This research focuses on enhancing the reversible capacity of sheetlike Nb2O5 anode by designing nanoscale phase interfaces, which allows for efficient lithium ion storage. The Nb2O5-750 electrode exhibits excellent lithium storage properties at different rates, showing promising potential for advancing lithium-ion battery technology.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Doudou Zhang, Haobo Li, Asim Riaz, Astha Sharma, Wensheng Liang, Yuan Wang, Hongjun Chen, Kaushal Vora, Di Yan, Zhen Su, Antonio Tricoli, Chuan Zhao, Fiona J. Beck, Karsten Reuter, Kylie Catchpole, Siva Karuturi
Summary: Transition metal nitrides, such as Ni3N/Ni enriched with N-vacancies, are promising catalyst materials with superior catalytic activity and stability. They demonstrate excellent performance in electrochemical and photoelectrochemical energy conversion applications, indicating a feasible synthesis approach for other transition metal nitride catalysts.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Review
Chemistry, Multidisciplinary
Huilin Fan, Pengcheng Mao, Hongyu Sun, Yuan Wang, Sajjad S. Mofarah, Pramod Koshy, Hamidreza Arandiyan, Zhiyuan Wang, Yanguo Liu, Zongping Shao
Summary: Metal tellurides (MTs) have emerged as highly promising candidate anode materials for state-of-the-art lithium-ion batteries (LIBs) and sodium ion batteries (SIBs) due to their unique crystal structure, high intrinsic conductivity, and high trap density. The latest research discusses the reaction mechanisms, challenges, electrochemical performance, and synthesis strategies of MTs for LIBs/SIBs, as well as the prospects and future development strategies to overcome existing limitations. This review not only provides an in-depth understanding of MTs but also drives further research on MTs for energy storage and conversion applications.
MATERIALS HORIZONS
(2022)
Article
Chemistry, Applied
Minh Thang Le, Phuong Anh Nguyen, Thi Thu Hien Tran, Thi Hai Nam Chu, Yuan Wang, Hamidreza Arandiyan
Summary: This study investigates the catalytic activity of spinel-type oxides (NixCoyO4) for the oxidation of toluene and carbon monoxide at low temperatures. Different Ni/Co catalysts were synthesized and characterized to determine their properties and catalytic performance. The results show that the catalyst with a Ni/Co atomic ratio of 1.5/1.5 exhibits the highest toluene oxidation activity, while the catalyst with a Ni/Co atomic ratio of 1/2 exhibits higher activity for CO oxidation. NiO and CoOx are found to be more active for the oxidation of toluene and CO, respectively. The catalytic performance is attributed to the high surface area, small particle size, good temperature reducibility, and oxygen species with high mobility in low-temperature regions. The stability of the Ni-Co oxide catalysts is derived from the strong Ni-Co interaction.
TOPICS IN CATALYSIS
(2023)
Article
Chemistry, Physical
Lei Zhang, Quanchao Zhuang, Runguo Zheng, Zhiyuan Wang, Hongyu Sun, Hamidreza Arandiyan, Yuan Wang, Yanguo Liu, Zongping Shao
Summary: This article provides a review and analysis of garnet-based all-solid-state lithium batteries (ASSLBs), with a focus on the optimization of LLZO structure, preparation of high-quality LLZO-based solid-state electrolytes (SSEs), engineering of the LLZO-based SSEs interface, and the realization of LLZO-based ASSLBs with high energy density.
ENERGY STORAGE MATERIALS
(2022)
Article
Chemistry, Physical
Zhiqiang Wei, Chang Liu, Yuzhao Zhang, Huilin Fan, Runguo Zheng, Zhiyuan Wang, Yuan Wang, Hamidreza Arandiyan, Zongping Shao, Hongyu Sun, Yanguo Liu
Summary: In this study, we developed a novel N-doped mesoporous hollow carbon sphere with a smooth exterior and a wrinkled interior structure. The obtained carbon sphere exhibits superior rate performance and sufficient capacity for high-energy storage, providing a new insight into the structural design and morphological control of carbon-based materials.
Article
Materials Science, Ceramics
Rongli Zhu, Yuan Wang, Yu Han, Yunxia Huang, Maolin Zhang, Xiaoyong Lai, Zi Yang, Zhimin Li
Summary: LiNiCoAlO (NCA) is widely used in Li-ion batteries due to its high reversible capacity and energy density. However, the residual Li on the exterior of NCA causes irreversible capacity loss. To address this issue, a bifunctional modification strategy of V doping and coating with Li3VO4 was reported. The obtained VNCA cathode materials improved the stability and rate capability of Li-ion batteries, with a higher cycle retention rate and specific discharge capacity compared to NCA.
CERAMICS INTERNATIONAL
(2023)
Article
Electrochemistry
Lizhi Qian, Jinliang Li, Gongxu Lan, Yuan Wang, Sufeng Cao, Lu Bai, Runguo Zheng, Zhiyuan Wang, Suresh K. Bhargava, Hongyu Sun, Hamidreza Arandiyan, Yanguo Liu
Summary: Transition metal oxide (TMO)-based anodes attract attention for lithium storage due to their high capacity, easy synthesis, and improved battery safety. The electrochemical performance of TMO anodes can be significantly improved through configurational entropy optimization. For example, a high-entropy oxide (FeCoNiCrCu)(3)O-4 with low potential and high capacity is synthesized. In both half-cell and full-cell configurations, the (FeCoNiCrCu)(3)O-4 electrode shows excellent performance with high specific capacity and low discharge voltage.
Article
Chemistry, Physical
Sasha Yang, Binbin Qian, Yuan Wang, Kenji Taira, Qiaoqiao Zhou, Karen Wilson, Adam F. Lee, Lian Zhang
Summary: In this study, the reductive thermal processing of iron oxide catalyst derived from fly ash waste was investigated. The resulting catalyst showed enhanced activity for the ketonization reaction of acetic acid due to the introduction of surface oxygen vacancies and acid-base sites.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Review
Chemistry, Multidisciplinary
Chengli Rong, Kamran Dastafkan, Yuan Wang, Chuan Zhao
Summary: This article systematically reviews the latest advancements in acidic oxygen evolution reaction (OER), including reaction mechanisms, catalysts, and operando characterizations, aiming to provide insights into the rational design of advanced catalysts for large-scale applications in various energy conversion and storage systems.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jiajia Zhao, Yuan Wang, Hamidreza Arandiyan, Anita M. D'Angelo, Aaron Seeber, Daksh Shah, Rachel A. Caruso, Ivan S. Cole, Yunxia Yang, Karen Wilson, Renata Lippi, Adam F. Lee
Summary: We demonstrate how subtle changes in a mixed phase zirconia support induce large changes in catalyst activity and selectivity. Ru/Sn0.2Zr0.8O2 catalyst exhibited similar structrue and metal ion distribution as Ru/ZrO2, but XRD evidence showed new crystalline phases where Sn substituted for Zr. Operando infrared spectroscopy identified linear surface CO* as a catalytic spectator, and Sn0.2Zr0.8O2 promoted CO2 decomposition, favoring a reverse water gas shift pathway.
MATERIALS TODAY CHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Lei Zhang, Huilin Fan, Yuzhen Dang, Quanchao Zhuang, Hamidreza Arandiyan, Yuan Wang, Ningyan Cheng, Hongyu Sun, H. Hugo Perez Garza, Runguo Zheng, Zhiyuan Wang, Sajjad S. Mofarah, Pramod Koshy, Suresh K. Bhargava, Yanhua Cui, Zongping Shao, Yanguo Liu
Summary: LLZO-based solid-state Li batteries (SSLBs) have great potential as promising energy storage systems, but there are still challenges that need to be addressed before commercialization, including degradation of electrolytes and electrodes, ambiguity in Li+ migration routes, and interface compatibility issues. In situ/operando characterization techniques offer real-time monitoring and dynamic information during cycling, which can help overcome limitations of traditional ex situ techniques. This review paper provides an overview of the current challenges and recent efforts in studying LLZO-based SSLBs using in situ/operando microscopy and spectroscopy techniques. It also highlights the future prospects for the practical implementation of LLZO-based SSLBs and emphasizes the importance of in situ/operando techniques for future research on solid-state batteries.
MATERIALS HORIZONS
(2023)
Review
Chemistry, Physical
Pengcheng Mao, Hamidreza Arandiyan, Sajjad S. Mofarah, Pramod Koshy, Cristina Pozo-Gonzalo, Runguo Zheng, Zhiyuan Wang, Yuan Wang, Suresh K. Bhargava, Hongyu Sun, Zongping Shao, Yanguo Liu
Summary: Rechargeable sodium-air batteries have gained extensive attention and developed rapidly in recent years for electrochemical energy storage applications due to their low costs, abundance of precursor resources, and high energy density. However, challenges such as poor charge-discharge reversibility at the cathode and the formation of sodium dendrites at the anode still need to be addressed. Therefore, designing efficient and stable air cathode materials is crucial for the development and practical application of sodium-air batteries.
Article
Chemistry, Physical
Andrew D. Newman, Yuan Wang, Samantha A. Orr, Karen Wilson, Adam F. Lee
Summary: Rh(OAc)(2)/HPW/SiO2 bifunctional catalyst exhibits promising performance in the carbonylation of methanol, showing high catalytic activity and acetic acid selectivity.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
