Article
Electrochemistry
Linyuan Pei, Yanhui Song, Meixiu Song, Peizhi Liu, Hong Wei, Bingshe Xu, Junjie Guo, Jianguo Liang
Summary: This study synthesized edge-rich Mo-doping cobalt iron oxide nanomeshes vertically supported on nickel foam via a straightforward hydrothermal synthesis technique, showing excellent OER performance and HER activity with long-term stability.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Shanshan Li, Yan Zhang, Yang Yuan, Fangfang Chang, Kai Zhu, Ge Li, Zhengyu Bai, Lin Yang
Summary: The design of multi-components nanostructure with interface heterojunction is the cutting-edge research in recent years because of the strong effects occurring at the interface. An efficient bifunctional electrocatalyst embedding highly dispersed Ni2P/Co nano heterojunction at the porous hollow out carbon shell is developed for overall water splitting. The distinct electron interaction between the interfacial Ni2P and Co effectively lowers the overpotential of OER and HER at the current density of 10 mA cm(-2).
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Multidisciplinary
Dandan Liu, Zeyi Wu, Jiajia Liu, Hongfei Gu, You Li, Xueyan Li, Shan Liu, Shange Liu, Jiatao Zhang
Summary: Developing robust and highly active bifunctional electrocatalysts for overall water splitting is critical for efficient sustainable energy conversion. Here, heteroatom-doped amorphous/crystalline ruthenium oxide-based hollow nanocages are reported, which show excellent catalytic activity for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Specifically, Co-ZnRuOx nanocages deliver ultralow overpotential and small Tafel slope for HER, surpassing the performance of commercial Pt/C catalyst, and prevent Ru from over-oxidation under OER operation.
Review
Energy & Fuels
Nihila Rahamathulla, Arun Prasad Murthy
Summary: Many countries have decided to end the usage of vehicles based on fossil fuels and instead convert wind, solar, and other natural energies into hydrogen. Bifunctional electrocatalysts with abundant hetero interfacial active sites have shown advantages in simplifying electrolysis and saving resources. This review discusses recent progress in this field, including preparation methods of heterostructures and their applications in different pH media.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Bing Zhang, Fan Yang, Xiaodong Liu, Ni Wu, Sai Che, Yongfeng Li
Summary: A P-doped Ni-Mo bimetal aerogel (Ni-Mo-P) was developed as a cost-effective bifunctional water splitting electrocatalyst, demonstrating impressive HER and OER performance with low overpotentials. This was attributed to electron redistribution by Mo alloying and P doping, as well as optimal bond strength between H* and active sites. The Ni-Mo-P catalyst required a low cell voltage to achieve an overall water splitting current density of 10 mA cm-2.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Haiqing Yan, Ruxin Deng, Siqi Zhang, Huiqin Yao, Jiacheng Duan, Hanchen Bai, Yongliang Li, Rong Liu, Keren Shi, Shulan Ma
Summary: In this study, Cd-doped Ni3S2 nanosheet arrays were fabricated via a hydrothermal strategy and Cd/Ni ratio tuning. The optimized Cd-Ni3S2/NF-1/4 exhibited the best electrocatalytic performance for water splitting, requiring ultralow overpotentials for both the hydrogen evolution reaction and oxygen evolution reaction. Furthermore, the Cd-doped Ni3S2 demonstrated improved overall water splitting performance due to enhanced electroconductivity and active sites accessibility. This work provides an effective strategy for the fabrication of highly efficient bifunctional electrocatalysts for hydrogen production.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nanoscience & Nanotechnology
Chandan Chandru Gudal, Uday Narayan Pan, Dasu Ram Paudel, Mani Ram Kandel, Nam Hoon Kim, Joong Hee Lee
Summary: Metallic MoS2 is a better electro-catalyst compared to semiconducting MoS2. However, its lack of thermodynamic stability has hindered its practical applications. Intercalation of elements improves the catalytic efficacy. The P-doped and intercalated 1T-CMS@CC catalyst showed excellent catalytic performance in HER and OER reactions.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Applied
Depeng Zhao, Meizhen Dai, Hengqi Liu, Zhongxin Duan, Xiaojie Tan, Xiang Wu
Summary: Developing highly active and low-cost electrocatalysts is crucial for improving the efficiency of water splitting. This study reports several amino-induced cobalt-based composite catalysts, which exhibit excellent performance in oxygen evolution and hydrogen evolution reactions, making them promising for water electrolysis.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Xuliang Lin, Jianglin Liu, Xueqing Qiu, Bowen Liu, Xiaofei Wang, Liheng Chen, Yanlin Qin
Summary: In this study, a Ru-FeNi@NLC catalyst encapsulated via lignin-derived carbon was prepared by self-assembly precipitation and in situ pyrolysis. The designed catalyst showed excellent performance in HER and OER reactions, with low overpotentials and only 1.48V for overall water splitting.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Jin Hu, Shengli Zhu, Yanqin Liang, Shuilin Wu, Zhaoyang Li, Shuiyuan Luo, Zhenduo Cui
Summary: This study reports a novel method for fabricating three-dimensional porous catalyst for water splitting with outstanding electrocatalytic performance, providing guidance for rational design and development of heterostructure electrocatalysts.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Javid Khan, Heng Liu, Jiamin Xiao, Yanlin Zhu, Asif Hayat, Hameed Ullah, Gulzar Ahmed, Handong Zhang, Yanyan Sun, Lei Han
Summary: Doping metal ions into cobalt sulfide is a promising strategy to enhance its electrocatalytic performance for overall water splitting. The synthesis of noble metal-free bifunctional electrocatalysts, composed of S, N, and O atoms co-incorporated porous carbon encapsulated Fe doped Co9S8 nanoparticles, is achieved by direct pyrolysis of S, Co, and Fe-based polypyrrole precursors. The optimal catalyst (Fe0-33-Co9S8@SNOPC) exhibits outstanding electrocatalytic activity in an alkaline electrolyte, with ultra-low overpotentials and exceptional stability for oxygen and hydrogen evolution reactions, as well as an extremely low cell voltage for overall water splitting.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Chemistry, Physical
Zipeng Feng, Yanwei Sui, Zhi Sun, Jiqiu Qi, Fuxiang Wei, Yaojian Ren, Zhenzhen Zhan, Meihua Zhou, Dongmei Meng, Lijun Zhang, Lan Ma, Qun Wang
Summary: This study synthesized three-dimensional hierarchical Mn-Co-P/NF electrodes by controlling electrodeposition time and phosphating temperature, exhibiting excellent electrocatalytic activities and stability for promoting hydrogen and oxygen evolution reactions. By in-situ growth of functional materials and unique structure design, active sites are effectively exposed, providing a reliable method for overall water splitting.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Chemistry, Physical
Dezhi Kong, Ye Wang, Shaozhuan Huang, Yew Von Lim, Minglang Wang, Tingting Xu, Jinhao Zang, Xinjian Li, Hui Ying Yang
Summary: A unique 3D hierarchical NiMo3S4 nanoflowers with abundant defects and reactive sites were grown directly on carbon textiles, exhibiting excellent electrocatalytic activity for overall water splitting.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Jinhui Tong, Chunyan Li, Lili Bo, Xiaolin Guan, Yunxia Wang, Deyuan Kong, Huan Wang, Wenping Shi, Yuning Zhang
Summary: The study successfully developed a series of bimetallic Fe-Co chalcogenophosphates as efficient water electrolysis catalysts, demonstrating high stability and Faraday efficiency.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Engineering, Environmental
Kunkun Nie, Na Li, Binjie Li, Yujia Zhang, Pei Liu, Shaokun Chong, Jun Hu, Zhengqing Liu, Wei Huang
Summary: This study reports a facile strategy for the preparation of single-atomic cobalt anchored 1T-MoS2/carbon (Co-1TMoS2/C) heterostructure, which exhibits excellent performance as an electrocatalyst for overall water splitting in alkaline conditions.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Xingyu Cai, Ying Xu, Fan Mo, Fanjun Kong, Lele Fan, Yanjun Tan, Guikai Zhang, Shengqi Chu, Wangsheng Chu, Shi Tao, Li Song
Summary: A general strategy to fabricate heterogeneous atom (N/S/P/Se)-doped hard carbon anodes with superb rate capability and cyclic stability based on a three-dimensional framework and a hierarchical porous structure is reported. The obtained N-doped hard carbon showed excellent rate capability and long-term cyclic stability. The as-constructed pouch cell exhibited high energy density and fast charging capability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Gufei Zhang, Ramiz Zulkharnay, Xiaoxing Ke, Meiyong Liao, Liwang Liu, Yujie Guo, Yejun Li, Horst-Guenter Rubahn, Victor V. Moshchalkov, Paul W. May
Summary: By investigating electrical transport phenomena, it is found that diamond nanorings (DNRs) transform into bosonic semiconductors upon the formation of Cooper pairs, exhibiting a sharp resistance increase and a giant negative magnetoresistance. In contrast, diamond half-loops (DHLs) undergo a metal-superconductor transition. This finding reveals the potential use of DNRs in manipulating Cooper pairs in superconducting quantum devices.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Physical
Chen Li, Ke Liu, Dequan Jiang, Ting Wen, En Chen, Yingying Ma, Binbin Yue, Shengqi Chu, Yonggang Wang
Summary: The pressure-induced multiswitching behaviors of structural and physical properties in two chromium selenides, CrSe and Cr2Se3, have been investigated. The results show that pressure engineering can effectively and flexibly regulate the photoelectric properties of materials, which provides a potential foundation for fabricating innovative pressure-responsive multifunctional devices.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Applied
Zhengfeng Zhang, Changdong Qin, Kuan Wang, Xiao Han, Jinhui Li, Manling Sui, Pengfei Yan
Summary: The cathode electrolyte interphase (CEI) layer is crucial for the electrochemical performance of lithium-ion batteries. By employing diverse characterization techniques, we systematically investigate the dynamic evolution of the CEI layer and its critical impact on the cycling performance of LiCoO2 cathode. We find that cycling voltage plays a key role in CEI formation and evolution, and a critical potential of 4.05 V is identified as the switching point between CEI deposition and decomposition.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Yuyuan Jiang, Yuyang Lu, Zhengfeng Zhang, Lige Chang, Jinhui Li, Xiao Han, Lin Gan, Yong Ni, Manling Sui, Pengfei Yan
Summary: This study reveals the failure mechanism of LiCoO2 cathode, indicating that misfit strain plays a dominant role in the surface layer exfoliation process. Highly strained LiCoO2 surface can initiate massive surface cracks, causing the LiCoO2 surface layer to break and exfoliate. Mechanical cracking coupled with chemical etching exacerbates the surface layer degradation, resulting in a weathering-like degradation on the LiCoO2 surface. This research highlights that the interfacial degradation of electrode materials is a complex physicochemical process.
MATERIALS RESEARCH LETTERS
(2023)
Article
Chemistry, Physical
Xulin Mu, Xiaojuan Hui, Mingming Wang, Kuan Wang, Yan Li, Yuefei Zhang, Manling Sui, Pengfei Yan
Summary: In this study, twin boundaries (TBs) were quantitatively estimated and characterized using advanced electron microscopy. It was further validated that TBs can initiate massive cracks during electrochemical cycling, leading to performance decay of LiNiO2. While adjusting synthesis conditions cannot avoid TB formation, it was found that a coprecipitation method can effectively eliminate TBs, resulting in improved cycling stability of LiNiO2. The coprecipitation method was also used to synthesize TB-free LiCoO2, demonstrating improved cycling stability.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Shuo Wu, Xiaolong Xu, Zelin Wang, Xiaoxing Ke, Shaonan Gu, Guowei Zhou, Lianzhou Wang
Summary: In this study, we propose an engineering strategy to fabricate high Co atomic loading Co-N-4-C single-atom catalysts (SACs) based on the biomineralization of yeast cells. The optimized sample showed a Co atomic loading of 12.18 wt % and a specific surface area of 403.26 m(2) g(-1). It exhibited excellent electrocatalytic kinetics and a high discharge voltage of 1.08V at 10 mA cm(-2) for more than 100 h in Zn-air batteries.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Mei Ding, Hu Fu, Xuechun Lou, Murong He, Biao Chen, Zhiyuan Han, Shengqi Chu, Bo Lu, Guangmin Zhou, Chuankun Jia
Summary: This paper presents a redox flow battery system using sulfides and permanganates as the negative and positive redox pairs. The battery demonstrates high energy density, long cycling lifetime, and low chemical cost. The use of appropriate electrode materials and solute selection plays a crucial role in improving the battery performance.
Article
Chemistry, Multidisciplinary
Guowei Wang, Manchen Zhang, Guikai Zhang, Zelin Wang, Xu Chen, Xiaoxing Ke, Changhao Wang, Shengqi Chu, Manling Sui
Summary: This study proposes an innovative approach to synthesize dual-atomic-site alloy (DASA) through two-step pyrolysis, avoiding the challenges of sintering and alloying on metal hosts. The approach is demonstrated by synthesizing Ir1Ni1@Co/N-C DASA, which exhibits outstanding bifunctional oxygen reduction/evolution reaction (ORR/OER) performance in both acidic and alkaline media. The density functional theory (DFT) calculations further reveal the regulation of adsorption-free energies of intermediates by Ir1 and Ni1 on Co.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Shi Tao, Guikai Zhang, Bin Qian, Jun Yang, Shengqi Chu, Chencheng Sun, Dajun Wu, Wangsheng Chu, Li Song
Summary: Heterostructured compounds with engineered interfaces have been widely studied as efficient electrocatalysts for oxygen evolution reaction (OER). However, the mechanism behind their intrinsic activities remains unclear. In this study, a NiSe2/FeSe2 heterostructure catalyst was fabricated through the selenization of Ni-Fe Prussian-blue analog templates, showing low overpotential (230 mV at 10 mA cm(-2)) and long-term durability. In-situ/operando Raman spectroscopy and synchrotron-based X-ray absorption spectroscopy (XAS) were used to investigate the catalytic process, revealing that the surface reconstruction into Ni-O-Fe configurations and the presence of high-valence NiIII-O-FeIII moieties in Ni-FeOOH are responsible for the high oxygen evolution activity. Density functional theory (DFT) simulations further confirmed that electron transfer driven by strong Ni-Fe synergistic effect in the NiSe2/FeSe2 heterostructure not only enhances the density of Ni/Fe active sites but also modulates their nature. This work provides insights into the intrinsic activities of metal compound heterostructures and the relationship between dynamic surface structural evolution and catalytic activity.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Multidisciplinary
Shi-Long Xu, Peng Yin, Lu-Jie Zuo, Shi-Yi Yin, Yue Lin, Wanqun Zhang, Sheng-Qi Chu, Hai-Wei Liang, Xian-Zhu Fu
Summary: Scalable low-Pt PtCu3 intermetallic oxygen reduction electrocatalysts were synthesized with the assistance of sulfur-containing inorganic salts. The success of the catalyst synthesis relies on the use of inorganic negative bivalent sulfur salts, which form a CuS2 intermediate at low temperatures and facilitate the formation of PtCu3 intermetallic catalyst at high temperatures. The prepared small-sized PtCu3 intermetallic catalyst exhibits high mass-based activity (3.0 A mg(Pt) (-1)), large electrochemically active surface area (74 m(2) g(Pt) (-1)) for oxygen reduction, and outstanding durability (18% mass activity loss after 30,000 cycles).
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Xulin Mu, Kai Huang, Genxiang Zhu, Yan Li, Conghui Liu, Xiaojuan Hui, Manling Sui, Pengfei Yan
Summary: Exploring the structure transformation mechanism of spent cathodes during regeneration is crucial for optimizing the processing protocol. Different operation histories result in spent cathode materials with different states of health (SOH), posing a challenge for simultaneous restoration. In this study, we investigated the effects of SOH on the direct regeneration protocol for spent LiCoO2 (LCO) cathodes. We identified lithium-deficiency and Al impurity as important factors impacting the regeneration quality of spent LCO, causing void defects, disordered lattice structures, and the diffusion of Al impurity during high temperature sintering. Based on our understanding of the regeneration process, we optimized the protocol to successfully restore spent LCO with different SOH.
Article
Materials Science, Multidisciplinary
Hao-Zhe Xu, Dong Li, Ying Chen, Pin Fang, Xiao-Xing Ke, Olga Demidenko, Yu-Jing Li
Summary: Tungsten oxide (WO3) has attracted attention for its electrochemical stability and proton absorption/desorption capability. In this study, a PtCuNi/WO3/C hybrid catalyst with an inter-diffusive alloy/WO3 interface on carbon was prepared. The catalyst exhibits enhanced activity and stability associated with the WO3 content, which is due to the complementary proton supply of non-stoichiometric HxWO3 and the prevention of particle dissolution and detachment by WO3.
Article
Chemistry, Multidisciplinary
Min Wang, Ling Lin, Zhangyi Zheng, Zhenyang Jiao, Wei Hua, Guowei Wang, Xiaoxing Ke, Yuebin Lian, Fenglei Lyu, Jun Zhong, Zhao Deng, Yang Peng
Summary: An integral gas diffusion electrode (NiNF) with hierarchical porosity was fabricated through electrospinning, addressing the issues of delamination, flooding, salt precipitation, and limited utilization of active sites. The GDE, with a hydrophobic superficial layer, works in a broad pH range and achieves near-unity faradaic efficiency of CO with high peak current densities in both alkaline and acidic flow cells. This work shows the potential of industrial-scale CO2 electrolysis through GDE design innovation.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
