Article
Chemistry, Multidisciplinary
He Sun, Mengfan Wang, Shenghui Zhang, Sisi Liu, Xiaowei Shen, Tao Qian, Xiaobin Niu, Jie Xiong, Chenglin Yan
Summary: This study identifies the critical role of bimetal sites in boosting oxygen reduction activity, confirming their potential feasibility in practical applications.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Chenxi Hu, Huihui Jin, Bingshuai Liu, Lvhan Liang, Zhe Wang, Ding Chen, Daping He, Shichun Mu
Summary: The introduction of Vitamin C can effectively suppress the free metal ions on the surface of metal organic frameworks, increase Fe-N4 active sites, and enhance catalytic performance, demonstrating the universality of this strategy.
Article
Chemistry, Physical
Weiyi Shi, Jie Zhang, Xinran Dong, Jinwei Chen, Gang Wang, Ruilin Wang
Summary: Significant attention has been given to stabilize Pt-based catalysts on desirable supports in order to reduce Pt loading in zinc-air batteries (ZABs). However, designing catalysts with efficient activity and stability remains challenging due to the slow kinetic of oxygen reduction reaction (ORR) at the cathode. In this study, a highly dispersed Pt3Co nanocrystals were fabricated on a multifunctional support of Co3ZnC@Co-NC derived from zeolitic imidazolate frameworks. The support composition was found to adjust the geometric configuration and electronic structure of Pt, resulting in improved ORR process and enhanced stability for Pt3Co nanocrystals.
Article
Chemistry, Physical
Changwei Shi, Yuheng Liu, Ruiyu Qi, Jiantao Li, Jiexin Zhu, Ruohan Yu, Shidong Li, Xufeng Hong, Jinsong Wu, Shibo Xi, Liang Zhou, Liqiang Mai
Summary: This study presents an efficient carbon-based catalyst derived from bimetallic zeolitic imidazole frameworks for the oxygen reduction reaction. The ultrasonic strategy enables uniform anchoring of the catalyst on resin microspheres, improving synthesis efficiency and distribution uniformity. By rational design of the catalyst structure, the performance of oxygen reduction reaction is enhanced.
Article
Engineering, Environmental
Zhilei Su, Guanying Ye, Suqin Liu, Zhen He
Summary: This article introduces a template-free I2-assisted pyrolysis strategy to regulate the morphology and porous structure of N/C catalysts. The synthesized N/C exhibits a coral-like morphology, a large pore volume, and a meso/macropore-dominated porous structure, showing excellent electrocatalytic and energy conversion performance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Caimei He, Lisan Cui, Xiangsi Wu, Yezheng Cai, Zhaoling Ma, Xinxian Zhong, Hongqiang Wang, Qingyu Li, Youguo Huang, Qichang Pan
Summary: The MoS2-SnS/NPC heterostructure, coupled with oxophilic SnS, exhibited superior catalytic activity and stability for oxygen reduction reaction compared to MoS2/NPC and SnS/NPC, showing promising prospects for efficient energy conversion. The improved catalytic performance was attributed to the synergistic effect of MoS2, SnS, S vacancy, and porous carbon sheets, indicating a successful heterojunction strategy for boosting ORR electrocatalysis.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Mengjie Liu, Hoje Chun, Tsung-Cheng Yang, Sung Jun Hong, Chia-Min Yang, Byungchan Han, Lawrence Yoon Suk Lee
Summary: By modulating the d-orbital energy level, we successfully synthesized N-doped carbon materials with paired metal sites. Compared with other counterparts, the Ru-Co diatomic catalyst exhibited higher oxygen electroreduction activity and better catalytic performance. Moreover, in a gas diffusion Zn-air battery, the Ru-Co diatomic catalyst showed bifunctional activity that outperformed commercial catalysts.
Article
Chemistry, Physical
Kexin Huang, Zhongyun Yang, Ling Liu, Xue Yang, Youjun Fan, Miaolan Sun, Chengzhou Liu, Wei Chen, Jun Yang
Summary: A dual ligand coordination strategy was proposed to prepare potent non-noble metal electrocatalysts with superior oxygen reduction reaction activity. The catalyst showed excellent performance with high half wave potential, better stability, and potential application in metal-air batteries and fuel cells.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Chenhao Lv, Yangyang Ren, Beibei Li, Zunming Lu, Lanlan Li, Xinghua Zhang, Xiaojing Yang, Xiaofei Yu
Summary: Co4N@NCNT-900, prepared by 1,2,4-TZ-assisted pyrolysis of Co-MOF-74, exhibited excellent catalytic performance in both ORR and OER due to the activity of Co4N particles and the highly graphitized NCNTs, making it a bifunctional high active catalyst for ZABs.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Engineering, Environmental
Yinghua Guo, Liang Yan, Jing Li, Jiawei Shi, Zhao Liu, Liyuan Fan, Weiwei Cai
Summary: In this study, a multi-stage porous structure of sc-PBA/Carbides@NC hollow nanobox catalysts is successfully synthesized by combining zeolitic imidazolate framework-67 (ZIF-67) templates and acid etching techniques. This multi-stage porous structure maximizes the exposure of active sites and enhances material transport during electrochemical reactions, leading to a high-performance bifunctional electrocatalyst for oxygen evolution reaction (OER) and oxygen reduction reaction (ORR).
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Siru Chen, Xuan Liu, Han Sun, Zhenyu Cao, Jiabin Xiong, Yanqiang Li
Summary: This study presents a facile strategy to synthesize N-doped carbon encapsulated Co-Co6Mo6C2 nano polyhedron using ZIF-67 as a precursor, which exhibits high catalytic activity for both oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). The introduction of Co6Mo6C2 into Co@NC significantly enhances the OER catalytic activity of the catalyst while maintaining high ORR catalytic activity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Zijian Zhu, Yang Li, Xiaofei Li, Huiming Qiu, Lei Fang, Lingcheng Zheng, Juan Gao, Guang Zhu
Summary: In this study, Fe, Co bimetallic doped zeolite imidazolate framework (M@CoFe-ZIF-8) was developed as a catalyst for optimizing the performance of Zn-Air batteries. The pyrolysis treatment resulted in the formation of an entangled structure of 100 nm-sized ZIF-8 particles and carbon nanotubes (CNTs). The CoFe@MNC-CNTs catalyst exhibited excellent catalytic activity and cycling stability, outperforming commercially available catalysts in terms of half-wave potential and power density.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yang Li, Shouwei Zuo, Xin Wu, Qiaohong Li, Jing Zhang, Huabin Zhang, Jian Zhang
Summary: The study introduces a new concept of temperature-induced on-site conversion approach (TOCA) to transform MoO(4) units into C-Mo-S triatomic coordination. The optimized hybrid demonstrates excellent kinetic performance and stability in oxygen reduction reaction, surpassing most Mo-based catalysts reported.
Article
Nanoscience & Nanotechnology
Yuyang Wang, Yaping Gao, Lixia Ma, Yanzhong Xue, Zong-Huai Liu, Huali Cui, Nan Zhang, Ruibin Jiang
Summary: In this study, Fe-N4-C and NiFe-LDH clusters were successfully integrated into a NiFe-LDH/Fe,N-CB electrocatalyst. The electrocatalyst showed excellent bifunctional activity for the oxygen reduction reaction and the oxygen evolution reaction, making it suitable for large-scale commercialization of rechargeable Zn-air batteries.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Wenqing Wang, Kun Rui, Kaili Wu, Yisha Wang, Longwei Ke, Xin Wang, Feng Xu, Yan Lu, Jixin Zhu
Summary: This study demonstrates a successful method of achieving highly dispersed iron atoms on a carbon framework through molecular bridging, resulting in excellent electrocatalytic performance for zinc-air batteries.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Quanduo Liang, Zhenzhen Shen, Xiguang Sun, Dehai Yu, Kewei Liu, Samuel M. M. Mugo, Wei Chen, Dong Wang, Qiang Zhang
Summary: This article proposes a strategy to address the tradeoff between modulus mismatch and transparency-electron conductivity in conventional implantable probes, by using polypyrrole-decorated microgels as cross-linkers to generate conductive and transparent hydrogels. The biomimetic electrode demonstrated a prolonged capacity for simultaneous optogenetic neuromodulation and recording of brain neural signals in the hippocampus of rat brains, and realized an intriguing brain-machine interaction involving signal input, neural signal generation, and limb behavior control.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Analytical
Altaf Hussain, Xiaohui Zhang, Yulin Shi, Fuad Abduro Bushira, Tesfaye Hailemariam Barkae, Kaixiang Ji, Yiran Guan, Wei Chen, Guobao Xu
Summary: In this study, Fe and Fe/Ni-MOFs nanorices were prepared by a solvothermal method and then calcined to obtain 1D Fe2O3 and Ni0.4Fe2.6O4 nanorices. It was found that Ar-annealed Ni0.4Fe2.6O4 nanorices have higher Ovs concentrations and smaller sizes. Among the synthesized nanorices, the Ar-Ni0.4Fe2.6O4 nanorices show higher sensitivity to diethylamine, low detection limit, wide dynamic response, high stability, and faster response/recovery time.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Yue Zhang, Pengkun Xia, Hui Fan, Xiaohui Gao, Fangping Ouyang, Wei Chen
Summary: A glucose sensor with high sensitivity and low detection limit was successfully constructed using CoO-400 nanoneedles, which exhibit a larger electrochemical active surface area, beneficial electronic structure, favorable lattice distortion, and abundant active sites. The glucose sensor shows superior performance in terms of sensitivity, detection limit, anti-interference ability, stability, repeatability, and reproducibility.
DALTON TRANSACTIONS
(2023)
Article
Electrochemistry
Wentao Xu, Kefeng Wu, Yanhua Wu, Qian Guo, Fangfang Fan, Anmei Li, Linjuan Yang, Fuqin Zheng, Youjun Fan, Wei Chen
Summary: This study reports an efficient self-supporting electrocatalyst consisting of NiMoO4 nanorods modified by MoOy with internal oxygen vacancies and epitaxially grown NiTex. This catalyst achieves low overpotential and low Tafel slope in alkaline electrolyte, showing sustainable durability. Additionally, an electrolytic cell system assembled with this catalyst demonstrates extraordinary performance in alkaline electrolyte.
ELECTROCHIMICA ACTA
(2023)
Article
Electrochemistry
Fangfang Fan, Qiulan Huang, Rajkumar Devasenathipathy, Xinglan Peng, Fan Yang, Xiaotian Liu, Limin Wang, Du -Hong Chen, Youjun Fan, Wei Chen
Summary: This research presents a facile strategy to construct a nanomaterial with controllable composition and structure for oxygen reduction and evolution reactions in rechargeable Zn-air batteries. The nanomaterial consists of Co, CoxP, and a hollow N-doped carbon shell. The relationship between activity and shell thickness was studied. By adjusting the phosphorous content, the nanomaterial showed superior bifunctional oxygen electrocatalytic activity. In addition, it exhibited excellent performance in a practical Zn-air battery.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Physical
Danye Liu, Shaonan Tian, Yu Zhang, Chaoquan Hu, Hui Liu, Dong Chen, Lin Xu, Jun Yang
Summary: The catalytic activity and stability of Pd-based electrocatalysts can be improved by optimizing their composition and structure. Alloying Sn into Pd weakens the adsorption of intermediate species on Pd sites and promotes their transformation. We report the synthesis of ultrafine SnPd nanoalloys and their superior catalytic performance for EOR and ORR.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Fangfang Fan, Yanxing Hui, Rajkumar Devasenathipathy, Xinglan Peng, Qiulan Huang, Wentao Xu, Fan Yang, Xiaotian Liu, Limin Wang, Du-Hong Chen, Youjun Fan, Wei Chen
Summary: In this study, bifunctional oxygen electrocatalysts consisting of cobalt-molybdenum-based bimetallic carbide and cobalt nanoparticles embedded N-doped carbon nanocages were synthesized. The prepared catalyst exhibits excellent activity and stability, with a low overpotential for oxygen evolution reaction and high half-wave potential for oxygen reduction reaction. Moreover, it demonstrates remarkable performance in rechargeable Zn-air batteries, including high open-circuit voltage, power density, specific capacity, and charge-discharge cycle stability. This work provides a new strategy for the integration and active-adjustment of bifunctional catalysts and their potential applications in water splitting and other catalytic reactions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Analytical
Yuhui Wei, Yanxing Hui, Xinjiao Lu, Chengzhou Liu, Youlin Zhang, Youjun Fan, Wei Chen
Summary: Rationally designing and constructing electrocatalytic nanomaterials is crucial for enhancing the sensitivity and selectivity of non-enzyme-based electrochemical sensors. In this study, a NiMn layered double hydroxide (LDH)-based MOF material was synthesized and used as an electrochemical electrode for highly sensitive detection of glucose. The NiMn-LDH-MOF exhibited excellent electrocatalytic activity for glucose oxidation, and the NiMn-LDH-MOF/GCE sensor showed a wide linear detection range, low detection limit, and high sensitivity. Additionally, the sensor demonstrated good selectivity and reliability for glucose detection in actual serum samples.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Xinjie Tong, Ziwei Zhang, Zhongying Fang, Jinhan Guo, Yue Zheng, Xiaolong Liang, Rupeng Liu, Leting Zhang, Wei Chen
Summary: Electrocatalytic synthesis of ammonia is a significant reaction that has attracted attention due to its mild reaction conditions and various applications. In this study, defect-rich PdMoCu trimetallic nanosheets were synthesized and found to exhibit excellent electrocatalytic activity for the nitrate reduction reaction (NO3RR) to ammonia. The nanosheets showed high selectivity, stability, and a Faraday efficiency of 56.95% at an optimal potential of -0.6 V.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Nanoscience & Nanotechnology
Qin Yang, Wenjing Yang, Zhen Wang, Rong Chen, Mingzi Li, Chuanjian Qin, Dahang Gao, Wei Chen
Summary: This research reports a method of using betaine and metal ions to construct high-conductive hydrogels, and successfully prepares PAA-Al3+/betaine hydrogels with high toughness and antifreezing property. The hydrogel exhibits excellent mechanical properties, conductivity, transparency, and low cytotoxicity, and can be used for motion detection and information recognition.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Xuan Liu, Jianying Wang, Zhongying Fang, Shuaiqi Gong, Dengke Gong, Wei Chen, Deli Wu, Zuofeng Chen
Summary: An ultrafast electro-corrosion method is developed to activate Ni foam as an efficient electrocatalyst for recycling PBT waste plastic. The treated Ni foam (T-NF) shows enhanced activity, characterized by the integrated Ni2+/Ni3+ peak area which is increased by 150 times. The T-NF electrode exhibits excellent catalytic activity for 1,4-butanediol oxidation, leading to the electrocatalytic reforming of PBT hydrolysate into succinate with a high Faraday efficiency of 93%.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Analytical
Dujuan Huang, Xinyu Wu, Muhammad Waqas, Ruixiang Wang, Limin Wang, Qiulan Huang, Xinglan Peng, Du -Hong Chen, Youjun Fan, Wei Chen
Summary: Tailoring the electronic structure of Pt-based catalysts by introducing Ni can enhance the efficiency and stability of methanol oxidation reaction. The electronic environment of Pt atoms can be further improved by alloying different atomic content of Ni. The PtNi alloy nanoparticles supported on PEDOT-MWCNTs exhibited excellent catalytic performance in methanol oxidation reaction, surpassing traditional Pt nanoparticles dispersed on PEDOTMWCNTs, MWCNTs, and commercial carbon black.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Altaf Hussain, Baohua Lou, Fuad Abduro Bushira, Shiyu Xia, Fangshuo Liu, Yiran Guan, Wei Chen, Guobao Xu
Summary: In this study, CuO nanoellipsoids with outstanding sensing properties were successfully synthesized for accurate detection of low-concentration DEA at room temperature. The CuO nanoellipsoids exhibited ultra-low detection limit, excellent selectivity and sensitivity, exceptional long-term stability and repeatability, and fast response/recovery time. The exceptional performance of CuO nanoellipsoids was attributed to their high porosity, 1D nanostructure, unsaturated metal sites, and abundant oxygen vacancies.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Xiaotian Liu, Congcong Huang, Muhammad Waqas, Limin Wang, Dujuan Huang, Qiulan Huang, Zhongyun Yang, Youjun Fan, Cheng Hou, Wei Chen
Summary: By using DES as a solvent and co-reagent, stable Pt nanoparticles were prepared, offering superior catalytic activity and high stability in methanol oxidation reaction. The relationship between doping content and catalytic performance was also revealed, providing a new strategy for other catalytic reactions.
MOLECULAR CATALYSIS
(2023)
Article
Chemistry, Inorganic & Nuclear
Xiaoqu Wang, Limin Wang, Karuppasamy Kohila Rani, Xinglan Peng, Yu Ning, Xiaotian Liu, Youjun Fan, Du-Hong Chen, Wei Chen
Summary: This study fabricates heterogeneous and hollow microspheres for enhancing the catalytic kinetics of the oxygen evolution reaction (OER). The prepared samples exhibit lower overpotential and higher electrocatalytic performance in OER. This work provides a method for the assembly of nanoparticles and the construction of heterojunctions.
INORGANIC CHEMISTRY FRONTIERS
(2023)