Article
Chemistry, Physical
Feng-Ge Wang, Xin Liu, Xiao-Qing Yuan, Yang Wu, Hui-Ying Zhao, Jian-Feng Yu, Bin Liu, Yong-Ming Chai, Bin Dong
Summary: This study successfully synthesized porous boron doped Ni2P rod nanoarrays through molten salt treatment and demonstrated their excellent catalytic performance and lower overpotential in alkaline HER. The boron doping optimized the porous geometry, increased the number of active sites, and regulated the electronic coordination to promote water dissociation and hydrogen adsorption and desorption. Moreover, the synthesized M-B-Ni2P electrode exhibited stable operation at a larger current density.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Jinsong Wang, Zhengfu Zhang, Haoran Song, Bao Zhang, Jia Liu, Xuxia Shai, Ling Miao
Summary: The study investigates the modulation of adsorption energy and electronic structure of a catalyst surface using nonmetal elements, showing a correlation between adsorption energy and metal and nonmetal centers to enhance current density and activity. Experimental evidence demonstrates that F-doping can accelerate reaction kinetics, providing new insights for the design of alkaline hydrogen evolution reactions.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Applied
Pengyu Han, Na Yao, Wei Zuo, Wei Luo
Summary: In this study, a boron-doped nickel electrocatalyst was synthesized and it exhibited remarkable performance in the hydrogen oxidation reaction under alkaline electrolyte. Experimental results and theoretical calculations revealed that the boron doping promoted OH adsorption and optimized the hydrogen binding energy on the catalyst surface, resulting in enhanced reaction performance.
CHINESE JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Physical
Lei Hu, Peng Zhong, Xu Zhang, Ye Xiang, M. -Sadeeq Balogun, Yexiang Tong, Hao Yang
Summary: This study developed a simple fabrication method to synthesize copper-doped ZnSe nanoparticles embedded in nitrogen-doped carbon, forming a Cu-ZnSe@NC composite. The composite exhibited excellent hydrogen evolution reaction (HER) performance in weak alkaline conditions, with a low overpotential of 84 mV, comparable to commercial Pt/C. Experimental and theoretical results showed that copper doping increased the number and intrinsic activity of active sites, and modulated the electronic structure of the catalyst, promoting H2O adsorption and optimizing the energy barrier for H adsorption in alkaline electrolyte.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Xiaowei Guo, Tong Wu, Siwei Zhao, Yuqiang Fang, Shumao Xu, Miao Xie, Fuqiang Huang
Summary: Metastable two-dimensional transition metal dichalcogenides (TMDs) are ideal electrocatalysts due to their excellent conductivities and high activities. This study developed a unique Re modulation strategy to stabilize ultrathin 2M-WS2 nanosheets and enhance their activity for hydrogen evolution reaction (HER), showcasing a promising electronic modulation method for high-performance HER.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Wenhao Yuan, Ying Li, Limin Liang, Fangqing Wang, Hui Liu
Summary: This study reports the synthesis of self-supported fluorine-phosphorus dual-anion co-doped NiSe2 nanosheets on carbon cloth with excellent hydrogen evolution reaction (HER) performance. Experimental and theoretical analysis confirmed that co-doping modulated the electronic structure of NiSe2, improving conductivity, optimizing hydrogen adsorption energy, and overcoming the rate-limiting obstacle.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Jinping Zhang, Wenxin Zhang, Jinmei Zhang, Yingxue Li, Yaling Wang, Liying Yang, Shougen Yin
Summary: This article presents an in-situ sulfidation method to form a MoS2/Mo2TiC2Tx nanohybrid, which is then used to synthesize a MoNiS/Mo2TiC2Tx electrocatalyst. The electrocatalyst exhibits good activity, low overpotential, small Tafel slope, and high stability in the hydrogen evolution reaction.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Baocang Liu, Yan Cheng, Bo Cao, Minghao Hu, Peng Jing, Rui Gao, Yaping Du, Jun Zhang, Jinghai Liu
Summary: The multicomponent 3D monolithic electrode showed excellent electrocatalytic performance for hydrogen evolution reaction due to the abundant active sites, outstanding conductivity, and favorable hydrogen adsorption free energy. It outperformed most previously reported molybdenum/cobalt sulfide-based electrocatalysts in acidic and alkaline solutions. Additionally, the electrode demonstrated good durability and stability under prolonged cycling and electrolysis.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Engineering, Environmental
Mengyao Li, Bihai Cai, Ruoming Tian, Xiaojiang Yu, Mark B. H. Breese, Xueze Chu, Zhaojun Han, Sean Li, Rakesh Joshi, Ajayan Vinu, Tao Wan, Zhimin Ao, Jiabao Yi, Dewei Chu
Summary: This study presents a method to fabricate high-efficiency V-doped MoS2 nanosheets with excellent catalytic performance and stability, providing new insights for hydrogen evolution reaction in water splitting.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
LuLu An, Junhao Yang, Jiang Zhu, Chang Yang, Xu Zhao, Deli Wang
Summary: A facile method to prepare hetero-interfacial Ni-Ni0.2Mo0.8N nanosheets for efficient alkaline hydrogen electrocatalysis is presented. The interface engineering can downshift the d-band center of Ni-Ni0.2Mo0.8N nanosheets, resulting in improved catalytic performance for both hydrogen evolution reaction (HER) and hydrogen oxidation reaction (HOR). The Ni-Ni0.2Mo0.8N nanosheets show lower overpotential for HER and an enhanced exchange current density for HOR compared to pure Ni.
Article
Chemistry, Physical
Jiao Li, Jianpeng Sun, Xiangchao Meng
Summary: Researchers successfully prepared a hollow spherical cobalt-based sulfide catalyst which exhibited excellent electrocatalytic activity and stability in the hydrogen evolution reaction (HER) in alkaline seawater. The catalyst's remarkable catalytic performance for HER in seawater splitting can be attributed to its hollow structure.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Nanoscience & Nanotechnology
Yanji Bao, Zhiyu Wu, Binbin Liu, Kexin Zhong, Mingliang Guo, Jinchun Tu, Bingrong Wang, Xiaoyong Lai
Summary: Efficient and stable nonprecious electrocatalysts, iron-doped nickel sulfide nanosheet electrodes, were synthesized through facile in situ sulfidation. The electrocatalyst exhibits excellent catalytic activity and stability, making it a cost-effective alternative to commercial noble metal-based catalysts in renewable energy-related technologies.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Fengxian Wu, Chunyan Xu, Xu Yang, Liying Yang, Shougen Yin
Summary: This study reports a novel heterostructure electrocatalyst, S-ML-Nb4C3Tx, prepared by hydrothermal technique, which exhibits excellent catalytic activity and stability for the hydrogen evolution reaction (HER) in 1.0M KOH solution. The high HER performance of the S-ML-Nb4C3Tx catalyst can be attributed to its superior conductivity, stability, enlarged interlayer spacing, and porous structure, as well as the introduction of NbS2 nanoparticles to form a heterostructure and adjust the electronic structure of the catalyst.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Zhiqiang Zhang, Shuli Tang, Xiaofeng Lin, Chenghao Liu, Shirong Hu, Qitong Huang
Summary: Synthesizing super active non-noble-metal electrocatalytic oxygen evolution reaction (OER) is of great significance for hydrogen electrolysis and air-fuel cells. In this study, we report a N, P-doped multiphase transition metal sulfide composite electrocatalyst (N, P-Co9S8/CoS2/Co1-xS) synthesized by an atmosphere conversion pyrolysis strategy. The multiple active components provide abundant catalytic active sites and optimize the valence orbital of the catalyst through coupling tuning of the heterogeneous interface, leading to excellent catalytic activity.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Yuanhang Ma, Difei Leng, Xuming Zhang, Jijiang Fu, Chaoran Pi, Yang Zheng, Biao Gao, Xiangguo Li, Neng Li, Paul K. Chu, Yongsong Luo, Kaifu Huo
Summary: Activation of the basal planes of MoS2 using sulfur vacancies and transition metal doping can achieve efficient hydrogen and oxygen evolution reactions. This approach can be extended to other TMDs for high-efficiency electrocatalysis.
Article
Chemistry, Multidisciplinary
Yan Guo, Xiaobo Yang, Xingchen Liu, Xili Tong, Nianjun Yang
Summary: In this study, efficient hydrogen production from water splitting is achieved using Co-doped Rh nanoparticles as electrocatalysts. The results show that Co-doping reduces reaction barriers and enhances the adsorption capacity of reactants, resulting in excellent activity. In a two-electrode cell, the combination of fast oxidation reaction on the anode and efficient hydrogen evolution reaction on the cathode enables efficient water splitting for hydrogen production.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Nianjun Yang, Xin Jiang
Summary: Diamond electrodes have unique features, such as long-term chemical inertness, wide potential windows, and high microstructural stability. They can be prepared in microcrystalline or nanocrystalline form using chemical vapor deposition techniques. These electrodes have been widely applied in various electrochemical fields, including sensing, energy storage, and environmental degradation.
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Lingbo Liu, Ling Lei, Keni Zeng, Kangbing Wu, Nianjun Yang
Summary: Red phosphorus (RP) nanoparticles with tuned surface chemistry were synthesized using a phosphorus-amine approach. In situ spectroscopic techniques were used to monitor the cleavage of P-O-P bond and the formation of P-O-C bond during the transition. RP nanoparticles grown on single-walled carbon nanotube (SWCNT) showed efficient sensing of p-phenylenediamine (PPD) in hair dyes.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Analytical
Jing Qian, Juan Yang, Yuanyuan Zhang, Ting Zeng, Qijin Wan, Nianjun Yang
Summary: In this study, a NiMn-layered double hydroxide (LDH)@poly-L-lysine (PLL) composite was prepared and utilized for the monitoring of tryptophan in different samples. The synthesized composite exhibited high stability and a flower-like morphology, and its electron transfer rate was greatly improved due to the introduction of PLL. The coordination promotion between NiMn-LDH and PLL contributed to the increased sensitivity of electrochemical response. The fabricated sensor displayed a wide linear response range and high anti-interference ability for tryptophan detection.
ANALYTICA CHIMICA ACTA
(2023)
Article
Chemistry, Physical
Chengzhe Liu, Fengjiao Guo, Qi Yang, Hongyu Mi, Chenchen Ji, Nianjun Yang, Jieshan Qiu
Summary: Rechargeable aqueous zinc-ion hybrid capacitors (ZHCs) have attracted attention due to their safety, cost effectiveness, and environmental compatibility. However, issues regarding dendrite growth and side reactions at the electrode-electrolyte interface hinder the large-scale application of ZHCs. This study introduces a negatively charged carboxylated chitosan-intensified hydrogel electrolyte (CGPPHE) to stabilize the zinc anode, leading to improved efficiency and durability of ZHCs.
Editorial Material
Chemistry, Multidisciplinary
Anke Krueger, Nianjun Yang, Robert J. Hamers
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Article
Chemistry, Physical
Yiqiu Xiao, Siyong Li, Chong Peng, Nianjun Yang, Shetian Liu, Siyu Yu
Summary: This study designs and develops dual pseudocapacitive electrode/redox electrolyte systems for the construction of asymmetric supercabatteries. The different working potential windows of the two systems result in a high cell voltage of 2.0V. The synergistic effect of two redox species on the electrode and in the electrolyte leads to an enlarged capacitance and high energy and power densities for the supercabattery device.
APPLIED SURFACE SCIENCE
(2023)
Article
Energy & Fuels
Jing Xu, Changli Li, Siyu Yu, Zilong Wang, Christian Pritzel, Xin Jiang, Nianjun Yang
Summary: Commercially available carbon cloths are used to construct flexible supercapacitors. These supercapacitors have high specific capacitance, excellent capacitance retention, and high energy and power density, making them promising for miniaturized electronic industries in the future.
Article
Chemistry, Physical
Ling Lei, Jiaxi Yin, Kangbing Wu, Nianjun Yang
Summary: Ti3C2Tx nanoflakes with different lateral sizes and thicknesses were synthesized through acidic etching and intercalation treatment. The electrochemical response of the nanoflakes was found to be size and thickness dependent, mainly related to the oxygen content on their surface. A sensitive electrochemical sensor for the detection of p-nitrophenol was successfully constructed using nanoflakes with good dispersibility, high oxygen content, small size, and thin thickness.
Article
Chemistry, Analytical
Xiaoxian Hu, Jing Qian, Juan Yang, Xiaomin Hu, Yanjiao Zou, Nianjun Yang
Summary: Covalent organic frameworks (COFs) have attracted extensive attention as a newly emerging kind of porous material due to their fascinating structural features. In this study, a new type of core-shell metal-organic framework (MOF) @COF composites were synthesized through in situ growth of COF shell on a pre-synthesized core. The obtained MOF@COF composite exhibited a larger electrochemical active area and faster electron transfer kinetic compared to its single component. Moreover, it showed promising performance as a sensing material for the voltammetric detection of metol.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Chuyan Zhang, Nan Huang, Zhaofeng Zhai, Lusheng Liu, Bin Chen, Bing Yang, Xin Jiang, Nianjun Yang
Summary: This study investigates the effects of electronic effects at the interface between Co4N nanoparticles and nitrogen-doped carbon nanowalls/diamond on the activity of the reversible oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). The study finds that the vacancy defect-induced Co-pyridinic N-C bond can optimize the electronic structure of Co 3d orbitals and balance the adsorption energies of intermediates along the reaction pathways. Accordingly, the synthesized Co4N@d-NCNWs/D composites exhibit excellent bifunctional oxygen catalytic activity.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Applied
Chunjiang Jin, Congcong Yang, Hongyu Mi, Chenchen Ji, Fengjiao Guo, Chengzhe Liu, Ziqiang Liu, Nianjun Yang
Summary: This study introduces a polyanionic strategy by developing a hydrogel electrolyte with carboxyl groups, to improve the reversibility and performance of aqueous Zn-ion energy storage systems. The carboxyl groups in the hydrogel structure promote the transport of Zn2+ ions and expedite their desolvation, leading to enhanced deposition kinetics. These functional groups also suppress dendritic growth and side reactions, resulting in a smooth surface texture of the Zn anode. The electrolyte exhibits high Coulombic efficiency and exceptional cyclability, making it suitable for energy storage in flexible, intelligent electronics.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Jing Xu, Xin Jiang, Nianjun Yang
Summary: In the past few decades, nanometer-scale pores have been used for sensing biological molecules, especially in nanopore sequencing. Carbon nanopores, such as graphene and carbon nanotubes, have the advantage of rapidly sensing various biological molecules at single-molecule resolution and with reduced cost compared to other materials. This article provides an overview of the general issues in nanopore sequencing and focuses on the recent progress and achievements in using carbon nanomaterials for sequencing. Finally, future research directions using carbon nanomaterials for nanopore sequencing are discussed.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Analytical
Yao Zhao, Shu Zhang, Wang Yao, Yuxuan Zhu, Jing Qian, Juan Yang, Nianjun Yang
Summary: A new hierarchical nanostructured composite with high conductivity and catalytic activity is synthesized. The sensor exhibits significant catalytic effect and high sensitivity for monitoring the environmental endocrine disruptor bisphenol A (BPA).
Article
Chemistry, Physical
Weikang He, Jingjing Li, Yuanyuan Zhang, Juan Yang, Ting Zeng, Nianjun Yang
Summary: A high-performance capacitive electrode is designed and grown on a flexible carbon cloth substrate, consisting of sulfur-doped NiMn-layered double hydroxide nanosheets and sulfur-doped NiCo-LDH nanowires. The electrode exhibits high gravimetric capacity, retention rate, and cyclic stability, making it suitable for assembling high-power and energy-density supercapacitors.
