Article
Chemistry, Physical
Yuzhong Chen, Fujin Bai, Zhengxing Peng, Lei Zhu, Jianquan Zhang, Xinhui Zou, Yunpeng Qin, Ha Kyung Kim, Jun Yuan, Lik-Kuen Ma, Jie Zhang, Han Yu, Philip C. Y. Chow, Fei Huang, Yingping Zou, Harald Ade, Feng Liu, He Yan
Summary: The paper presents a strategy of asymmetric alkyl and alkoxy substitution on Y-series nonfullerene acceptors, achieving great performance in organic solar cell devices. Asymmetric substitution on Y6 results in a molecule that maintains V-oc improvement and good solubility, enabling highly efficient nonfullerene OSCs. This asymmetric side-chain strategy shows potential for improving the performance of other NFA-material systems.
ADVANCED ENERGY MATERIALS
(2021)
Article
Energy & Fuels
Miao Li, Yuanyuan Zhou, Ming Zhang, Yahui Liu, Zaifei Ma, Feng Liu, Ruiping Qin, Zhishan Bo
Summary: Ternary strategy has been proven effective in optimizing the morphology of active layers in organic solar cells, reducing nonradiative energy loss, and enhancing photovoltaic performance.
Article
Chemistry, Physical
Qi Liu, Yang Wang, Jin Fang, Haiqin Liu, Lei Zhu, Xia Guo, Mengyuan Gao, Zheng Tang, Long Ye, Feng Liu, Maojie Zhang, Yongfang Li
Summary: This study introduces a small molecule donor, BTTzR, into a state-of-the-art binary system to fabricate high-efficiency ternary polymer solar cells with low non-radiative energy loss. BTTzR forms an energy cascade with binary components to facilitate charge transfer, enhancing crystallization and domain purity of the blend.
Article
Chemistry, Physical
Huanran Feng, Yvjie Dai, Lihao Guo, Di Wang, Hao Dong, Zhihui Liu, Lu Zhang, Yvjin Zhu, Chen Su, Yongsheng Chen, Weiwei Wu
Summary: The ternary strategy is an effective method to improve the power conversion efficiency of organic photovoltaic cells, by introducing a third component to reduce energy loss. The introduction of the simple molecule BR1 has been shown to enhance the performance of PM6:Y6-based OPVs and increase the PCE of the photovoltaic cells.
Article
Engineering, Environmental
Renjie Xu, Yuanyuan Jiang, Feng Liu, Wenli Su, Wuyue Liu, Shengjie Xu, Haijun Fan, Chengjun Jiang, Qianshou Zong, Wenkai Zhang, Xiaozhang Zhu
Summary: The open-circuit voltage (Voc) of organic solar cells (OSCs) is limited by the large non-radiative voltage loss (Delta Vocnonrad), which can be reduced by minimizing energy loss (Eloss). In this study, a new asymmetric nonfullerene acceptor, SN-O, was designed and synthesized to achieve higher Voc without sacrificing Jsc and FF. The addition of SN-O into the D18:Y6 system significantly reduced nonradiative energy loss, improved blend film morphology, and enhanced exciton dissociation, charge transport, and collection. As a result, an impressive PCE of 18.3% was achieved for the ternary D18:Y6:SN-O system.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Chenyang Zhang, Jing Li, Wanyuan Deng, Junpeng Dai, Jifa Yu, Guanghao Lu, Hanlin Hu, Kai Wang
Summary: In this study, two new small molecule donor isomers were synthesized and incorporated into binary blends to improve the performance of ternary organic solar cells (OSCs). The introduction of the small molecule donors extended the absorption range, improved the component distribution and crystallinity, and reduced recombination, resulting in higher short-circuit current (JSC) and improved fill factor. Additionally, the molecular isomers also enhanced the open-circuit voltage (VOC), leading to record-breaking power conversion efficiency.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Environmental
Haojiang Shen, Yixuan Xu, Wentao Zou, Wenqing Zhang, Jianfeng Li, Ping Cai, Yuan Guo, Huajun Xu, Xiaotao Hao, Yanna Sun, Yuanyuan Kan, Yingguo Yang, Ke Gao
Summary: The characteristics of small molecules in all-small-molecule organic solar cells (ASM OSCs), such as well-defined chemical structure and excellent reproducibility between batches, have attracted great attention. However, balancing the aggregation behaviors of small molecules is a challenge, limiting the further development of ASM OSCs' efficiency. The asymmetric ending group strategy has been successfully employed in non-fullerene acceptors (NFAs). Inspired by this, two asymmetric and symmetric small molecule donors, Por-DPP-TR and PTR, were synthesized. The efficiency of ASM OSCs reached 16.31%, ranking as one of the highest PCEs.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Jinglong Chen, Jiamin Cao, Longfei Liu, Liang Xie, Hu Zhou, Jianqi Zhang, Kai Zhang, Manjun Xiao, Fei Huang
Summary: In this study, a new low-bandgap asymmetric small molecule acceptor TIT-2Cl based on thieno[3,2-b]indole core was introduced into PM6:Y6-based polymer solar cells (PSCs) to suppress the over-aggregation of Y6 molecules and improve the efficiency. The addition of TIT-2Cl contributed to improved light harvesting, charge separation, transport, and extraction. By using the layer-by-layer (LBL) progressive spin-coating method, the PSCs achieved a champion efficiency of 18.18%, the highest reported for PM6:Y6-based PSCs, with superior stability and compositional insensitivity.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Ke Hu, Jiaqi Du, Can Zhu, Wenbin Lai, Jing Li, Jingming Xin, Wei Ma, Zhanjun Zhang, Jinyuan Zhang, Lei Meng, Yongfang Li
Summary: A new small-molecule acceptor-based polymerized solar cell (PYCl-T) with high efficiency and thermal stability was designed and synthesized using a ternary blending system.
SCIENCE CHINA-CHEMISTRY
(2022)
Article
Engineering, Environmental
Wenxiang Xiang, Ruipeng Li, Yu Jiang, Xiaopeng Xu, Yanping Huang, Liyang Yu, Qiang Peng
Summary: This study explores the impact of isomerization on the performance of PSCs using asymmetrical Y6 derivatives, and finds that the differences in crystallization and polymorphism behavior of isomers significantly affect the performance of PSCs.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Zihao Xia, Jinsheng Zhang, Xiang Gao, Wei Song, Jinfeng Ge, Lin Xie, Xiaoli Zhang, Zhitian Liu, Ziyi Ge
Summary: The study focuses on the design and synthesis of two novel SMAs, PTIC-4Cl and PT2IC-4Cl, by expanding the conjugation length. Compared to PT2IC-4Cl, PTIC-4Cl exhibits a larger dipole moment and enhanced intermolecular packing, leading to the highest power conversion efficiencies.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Xin Zhao, Qiaoshi An, Heng Zhang, Can Yang, Asif Mahmood, Mengyun Jiang, Min Hun Jee, Bin Fu, Shiyu Tian, Han Young Woo, Yapei Wang, Jin-Liang Wang
Summary: In this study, two asymmetric isomeric small molecule acceptors (SMAs) with asymmetric alkyl chains and selenophene-based central core were synthesized for organic solar cells (OSCs). Crystallographic analysis showed that AYT9Se11-Cl had a more compact and ordered intermolecular packing compared to AYT11Se9-Cl, resulting in higher electron mobility in neat AYT9Se11-Cl film. The PM6 : AYT9Se11-Cl blend film exhibited better morphology with appropriate phase separation and distinct face-on orientation compared to PM6 : AYT11Se9-Cl. The OSCs with PM6 : AYT9Se11-Cl achieved a superior power conversion efficiency (PCE) of 18.12% compared to PM6 : AYT11Se9-Cl (17.52%), making it the highest efficiency for selenium-incorporated SMAs in binary BHJ OSCs.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Zhenrong Jia, Qing Ma, Lei Meng, Jinyuan Zhang, Shucheng Qin, Zeng Chen, Xiaojun Li, Jianqi Zhang, Jing Li, Zhanjun Zhang, Zhixiang Wei, Yang(Michael) Yang, Yongfang Li
Summary: The synthesis of two isomeric small molecule acceptors m-DTC-Cl-1 and m-DTC-Cl-2 with medium bandgap was performed, and it was found that the chlorine substitution positions significantly influenced the properties and performance of the acceptors. Among them, the OSC with m-DTC-Cl-2 as the acceptor demonstrated high power conversion efficiency, open circuit voltage, and low nonradiative energy loss, making it an ideal candidate for the front cell in TOSCs.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Jing Guo, Xinxin Xia, Beibei Qiu, Jinyuan Zhang, Shucheng Qin, Xiaojun Li, Wenbin Lai, Xinhui Lu, Lei Meng, Zhanjun Zhang, Yongfang Li
Summary: High-performance all-polymer solar cells (all-PSCs) can be achieved by synthesizing two structural analogous polymerized small-molecule acceptors (PSMAs) and incorporating them into PM6:PY-IT binary blends to construct ternary all-PSCs, resulting in higher power conversion efficiency and improved photostability.
ADVANCED MATERIALS
(2023)
Article
Physics, Applied
Yuki Sato, Tsubasa Mikie, Hiroya Yamada, Itaru Osaka, Hideo Ohkita
Summary: In this study, the exciton dynamics of a novel fused ring p-conjugated molecule (YS3) in solution and film states were investigated by spectroscopic measurements. The YS3 films exhibited a long exciton lifetime due to reduced radiative and nonradiative transitions. The suppression of radiative deactivation in H-aggregates and rotational deactivation in the crystalline film state played important roles.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2023)
Article
Engineering, Environmental
Junkang Sang, Shuai Liu, Jun Yang, Tao Wu, Xiang Luo, Yongming Zhao, Jianxin Wang, Wanbing Guan, Maorong Chai, Subhash C. Singhal
Summary: This study investigated the feasibility of power generation from flat-tube solid oxide fuel cells (SOFCs) with direct internal dry reforming of methanol. The effects of CO2/MeOH ratio, temperature, and current density on cell performance and long-term durability were studied. It was found that higher CO2/MeOH ratios reduced the power density, but suppressed carbon deposition and enhanced long-term durability. A cell operated stably over 500 hours with a constant current density of 200 mA/cm2 under CO2/MeOH =1 and 2 at 750 degrees C. In addition to stable power generation, simultaneous syngas production and reduction in CO2 emissions were achieved. Density functional theory (DFT) calculations provided insights into the possible pathways for methanol dry reforming and the mechanism of carbon removal.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Chunlin Luo, Shuai Liu, Gang Yang, Peng Jiang, Xiang Luo, Yipei Chen, Mengxia Xu, Edward Lester, Tao Wu
Summary: In this study, (CNTs-Fe3O4)-Co nanocomposites were designed as microwave-responsive catalysts and showed enhanced hydrogen generation rate. The results revealed that microwave irradiation could boost the HGR of the (CNTs-Fe3O4)(1:4)-Co (10 wt%) catalyst from 75.0% to 95.4% compared to conventional heating. The synergistic effect of cobalt and Fe3O4 sites in the (CNTs-Fe3O4)(1:4)-Co (10 wt%) catalyst was confirmed through various Co loadings and DFT calculations.
Article
Energy & Fuels
Jiahui Yu, Shuai Liu, Shu Liu, Peng Jiang, Edward Lester, Chenwei Li, Meichun Ding, Changxiang Shao, Kaiqi Shi, Tao Wu
Summary: A new preparation method is developed for the Ce/Ni-ZrO2 nano-catalyst and it exhibits a large nickel surface area and small particle size. The use of UiO-66 as a precursor for ZrO2 and a dispersant for nickel nanoparticles improves the catalytic performance. The catalyst shows excellent performance at high GHSVs with a CO2 conversion decrease of only 32.1% compared to the control group's 50.3% decrease.
Article
Green & Sustainable Science & Technology
Lingyun Zhang, Qun Shen, Cheng Heng Pang, Wei Chao, Shuhuan Tong, Kien Woh Kow, Edward Lester, Tao Wu, Li Shang, Xuehang Song, Nannan Sun, Wei Wei
Summary: The conversion of Linz-Donawitz Gas from the steel industry into ethanol (LDG-ethanol) has shown promise as a valuable method for utilizing tail-gas. However, there is still a lack of systematic and objective understanding of its environmental impact benefits. In this study, the environmental footprint of LDG-ethanol technology is analyzed through life cycle assessment (LCA) and compared with its competitors under different development scenarios. The assessment results demonstrate that LDG-ethanol is the most environmentally friendly option, with an environmental impact value 22%-25% lower than Corn-ethanol and Coal-ethanol routes. Moreover, by reducing electricity consumption and incorporating green power, the environmental footprint of LDG-ethanol can be further reduced by 15%-68%. This makes LDG-ethanol an attractive option for achieving decarbonization goals, especially as grid decarbonization progresses.
JOURNAL OF CLEANER PRODUCTION
(2023)
Review
Biochemistry & Molecular Biology
Xinyi Mao, Ruitang Guo, Quhan Chen, Huiwen Zhu, Hongzhe Li, Zijun Yan, Zeyu Guo, Tao Wu
Summary: This review summarizes the recent advances in the application of carbon nitride, particularly graphitic phase (g-C3N4), as a catalyst and catalyst support in the electrocatalytic reduction of CO2. It also discusses the synthesis and functionalization of g-C3N4 and critically reviews the modification of g-C3N4-based catalysts for enhanced CO2 reduction. Opportunities for future research on g-C3N4-based catalysts for electrocatalytic CO2 reduction are also discussed.
Article
Chemistry, Multidisciplinary
Qinrui Ye, Zhenyu Chen, Daobin Yang, Wei Song, Jintao Zhu, Shuncheng Yang, Jinfeng Ge, Fei Chen, Ziyi Ge
Summary: Highly efficient and mechanically robust flexible organic solar cells (OSCs) are fabricated by incorporating a ductile oligomeric acceptor (DOA) into the polymer donor (PD) and small molecule acceptor (SMA) system. The DOA significantly improves the power conversion efficiency (PCE) and mechanical stability of the OSCs, retaining 98% of the initial PCE after 2000 bending cycles.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Wei Song, Qinrui Ye, Shuncheng Yang, Lin Xie, Yuanyuan Meng, Zhenyu Chen, Qun Gu, Daobin Yang, Jingyu Shi, Ziyi Ge
Summary: This study achieved a high power conversion efficiency of 18.06% and ultrahigh mechanical robustness in flexible organic solar cells by incorporating a linker dimerized acceptor. The ternary system exhibited reduced non-radiative recombination, suppressed crystallization and diffusion, and improved load distribution, surpassing binary systems in both efficiency and stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Environmental
Hongqian Wang, Daobin Yang, Pengfei Ding, Lin Xie, Zhenyu Chen, Shuncheng Yang, Pengyu Yan, Yuanyuan Meng, Jianqi Zhang, Zhixiang Wei, Ziyi Ge
Summary: This study designs and synthesizes two conjugated molecules with different electron-deficient end groups and applies them to organic solar cells, achieving high-efficiency energy conversion. The results demonstrate that rational molecular design and dual FRET effects can simultaneously improve JSC and FF.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Zeyu Guo, Huiwen Zhu, Gang Yang, Angjian Wu, Quhan Chen, Zijun Yan, Kam Loon Fow, Hainam Do, Jonathan D. Hirst, Tao Wu, Mengxia Xu
Summary: This study investigates the synthesis of a heteronuclear Ni-Ag dual-atom catalyst loaded on defective nitrogen-rich porous carbon and studies its catalytic performance and mechanism in electrocatalytic carbon dioxide reduction. The results show that Ni-Ag/PC-N exhibits remarkable CO Faradaic efficiency and in situ studies using FTIR and Raman spectroscopy reveal an accelerated mechanism for the production of *COOH intermediates. Density functional theory calculations reveal the synergistic mechanism between the coordinated Ni atom and adjacent Ag atom on the catalyst surface.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Fan Wang, Yueying Zheng, Xinggang Wei, Dawei Lan, Jintao Zhu, Yingjie Chen, Ziquan Wo, Tao Wu
Summary: This study successfully fabricated a composite material, Fe3O4/MnO2(3 1 0)/ZIF-67, with outstanding selectivity, capacity, and rate for Cu (II) adsorption. It demonstrated a partition coefficient K of Cu (II) that was 2.2-5.3 times higher than other coexisting ions, an adsorption capacity of 1261.0 mg g-1, and a fast adsorption rate of 840.7 mg g-1 h-1. The composite's magnetic property facilitated easy separation from wastewater, making it suitable for commercial applications. The study also analyzed the synergetic effect mechanism and investigated the recyclability of the composite.
ENVIRONMENTAL RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Chenxi Wang, Ashak Mahmud Parvez, Jiayou Mou, Cheng Quan, Jiashuo Wang, Yueying Zheng, Xiang Luo, Tao Wu
Summary: In response to China's commitment to carbon peaking and neutrality targets, a new methodology was developed to assess a medium-sized university campus in eastern China. The study showed that the campus emitted about 13,877 tonnes of CO2-eq in 2020, with electricity consumption contributing about 77% of the total emissions. Additionally, seven mitigation strategies were proposed to reduce the campus carbon footprint, with decarbonization of electricity being the largest contributor to emissions reduction.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Multidisciplinary
Daobin Yang, Shuncheng Yang, Hongqian Wang, Lin Xie, Pengyu Yan, Ziyi Ge
Summary: The construction of C-N bonds is highly important in various fields, and this study unexpectedly obtained novel organic molecules containing C-N bonds in a reaction process. The synthesis method is simple and efficient, and the new compounds also exhibit outstanding performance in solar cells.
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Zhenyu Chen, Jintao Zhu, Daobin Yang, Wei Song, Jingyu Shi, Jinfeng Ge, Yuntong Guo, Xinyu Tong, Fei Chen, Ziyi Ge
Summary: The influence of isomerization in non-fullerene guest acceptors on ternary organic solar cells (OSCs) was investigated. The designed large π-conjugated isomers, QX-α and QX-γ, with different orientations of their fused thiophene-rings, showed significant differences in their photovoltaic properties. The OSC based on D18:N3:QX-α achieved a higher efficiency of 19.33%, while the device based on D18:N3:QX-γ exhibited an efficiency of only 18.30%. Moreover, the ternary device showed improved efficiency retention and a longer lifetime compared to the binary device.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Physical
Gang Yang, Xiang Luo, Shuai Liu, Chenggong Sun, Tao Wu
Summary: This study investigates the roles of oxygen vacancies and active oxygen species in the low-temperature SCR process. The results show that K doping improves the SCR performance, while Pb doping enhances NH3 oxidation but reduces NOx conversion. DFT calculations reveal that K incorporation facilitates NH3 adsorption, while Pb doping inhibits NH3 adsorption.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
