Article
Chemistry, Physical
Xiaolang Chen, Yoshifumi Kondo, Shuangjun Li, Yasutaka Kuwahara, Kohsuke Mori, Dieqing Zhang, Catherine Louis, Hiromi Yamashita
Summary: This study successfully enhanced the photocatalytic separation and transfer efficiency of MOFs by constructing a heterojunction structure, leading to efficient H2O2 production. MIL-125-PDI showed a higher H2O2 production rate and better stability compared to MIL-125-NH2 with noble-metal Pt nanoparticles as co-catalysts.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Physical
Qi Xu, Liang Liu, Hengtong Xia, Xiankun Wu, Jingtao Dai, Jianlan Liu, Dong Fang, Guodong Xu
Summary: Photocatalytic hydrogen production is a promising solution to energy crisis and environmental issues. This study focuses on developing efficient and inexpensive photocatalysts with strong absorption and high redox ability. By synthesizing amorphous Co9S8/rod-like Zn0.5Cd0.5S binary composites, the researchers were able to achieve a significant improvement in redox potential and photogenerated charge transfer rate. The optimized composite exhibited a hydrogen production efficiency 12.39 times higher than that of pristine Zn0.5Cd0.5S, showcasing the effectiveness of this strategy in developing high efficient photocatalysts for hydrogen production.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Applied
Guangrui Shen, Ling Wang, Xia Wu, Peng Yuan, Yumin Tang, Yumeng Chen, Xiao-Chun Hang, Zhi-Kuan Chen, Honghai Zhang, Zhengyi Sun
Summary: Two PDI-based polymeric acceptors were designed and synthesized, and their performance in all-polymer solar cells was compared with an unfused-PDI polymer as a control. The study found that the extended π-conjugation and twisted molecular conformation contributed to the improved performance of the device.
Article
Chemistry, Physical
Yi Li, Shan Yu, Jianglai Xiang, Fengying Zhang, Anqiang Jiang, Yuangang Duan, Chun Tang, Yuehan Cao, Heng Guo, Ying Zhou
Summary: This study improves the efficiency of photocatalytic hydrogen evolution (PHE) by proposing new strategies to modulate hole transfer rate. It is found that using a H2S-saturated Na2S&Na2SO3 solution effectively removes the accumulated holes on the photocatalyst surface, and impregnating palladium sulfide (PdS) as an oxidative cocatalyst optimizes the hole transfer process. The study also demonstrates the ultrafast process of hole transfer from CdS to PdS and identifies PdS as the oxidation active site through femtosecond transient absorption spectroscopy and density functional theory calculations. Furthermore, Fourier transform infrared spectroscopy analysis reveals the composition of oxidation products, with colorless and value-added thiosulfate protecting the photocatalyst from light shielding effects. These contributions lead to a significantly improved PHE efficiency (approximately 145.9 mmol center dot g(-1) center dot h(-1)) on the CdS/PdS composite.
Article
Chemistry, Physical
Aysun Albayrak Otken, Gozde Murat Saltan, Tamer Yesil, Ceylan Zafer, Haluk Dincalp
Summary: The synthesis of core-twisted perylene diimide (PDI) dimers attached with thiophene linkers (PDI-NHR-Th(1-4)) and their electron transporting ability at perovskite surface were investigated. These synthesized dyes exhibited high-lying lowest unoccupied molecular orbital (LUMO) energy levels that were compatible with the conduction band of CH3NH3PbI2Br. The role of different substituted positions of PDI monomers to thiophene linkage in modulating the morphology of PDI dimer, charge transfer properties, optical shifts, and recombination resistances at p-i-n device interfaces were studied.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Chemistry, Physical
Xuanxuan Yang, Yu Guo, Yongbing Lou, Jinxi Chen
Summary: Novel sea urchin-like Zn0.5Cd0.5S and mesoporous TiO2 were designed and synthesized to form crown-like Zn0.5Cd0.5S/M-TiO2 composites, achieving an optimum hydrogen production rate of 180.4 mmolh(-1)g(-1). The outstanding performance of the composites is mainly attributed to the enlarged specific surface area, exposure of more active sites, and enhancement of electron-hole separation efficiency.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Multidisciplinary
Xue Luan, Ziqi Yu, Jiangzhi Zi, Fangfang Gao, Zichao Lian
Summary: This study proposes the rational design of a dual S-scheme heterojunction in lychee-shaped W18O49/CdWO4/CdS nanostructures to achieve high photocatalytic activity in hydrogen evolution reaction (HER) under visible light irradiation. The significant activity of W18O49/CdWO4/CdS in photocatalytic HER is attributed to its unique structure, effective charge separation by the photoinduced defect-transit dual S-scheme mechanism, and strong internal electric field. X-ray photoelectron spectroscopy (XPS), femtosecond transient absorption (fs-TA) spectroscopy, and electron paramagnetic resonance (EPR) measurements further confirm the dual S-scheme mechanism in the photoinduced carrier transfer pathways. This research provides a new strategy for designing dual S-scheme heterojunctions to improve photocatalytic performance through defect band structure engineering.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Guangwu Yang, Ting Chen, Hao Liu, Chuanwang Xing, Guiyang Yu, Xiyou Li
Summary: Bi-doped twin crystal Zn0.5Cd0.5S (Bi/ZCS) was prepared for the first time via a hydrothermal method and exhibited improved photocatalytic hydrogen production performance. The Bi doping enhanced light absorption, promoted carrier separation and transport, leading to a significant increase in hydrogen evolution rate and apparent quantum efficiency. Moreover, Bi/ZCS photocatalyst showed superior performance in seawater, providing a low-cost and efficient solution for solar hydrogen production.
APPLIED SURFACE SCIENCE
(2023)
Article
Electrochemistry
Boyu Zhang, Dingze Lu, Zhennan Wang, Kiran Kumar Kondamareddy, Min Zhou, Ajit Khosla, Xinyu Zhang, Yuhao Zhang, Qiong Wu, Yimei Zeng, Lihao Xie, Bang Zhao, Jing Li, Tongtong Yang, Huiqing Fan, Wingkei Ho
Summary: Two-dimensional g-C3N4 nanosheets were synthesized through high-temperature calcination. The prepared g-C3N4 was further used to synthesize a series of 2D/0D composites based on g-C3N4/Zn0.5Cd0.5S heterojunction composites with varying amounts of g-C3N4. The study found that appropriate g-C3N4 modification can improve the separation and transfer efficiency of photogenerated carriers and enhance the photocatalytic activity. The introduction of g-C3N4 to form a heterojunction effectively improves the separation and migration of photogenerated charges.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Applied
Aixia Wang, Linhe Zhang, Xuli Li, Yangqin Gao, Ning Li, Guiwu Lu, Lei Ge
Summary: This study encapsulated non-precious metal transition metal phosphide Ni2P into MOF and decorated it on sulfide to form the Ni2P@UiO-66-NH2/Zn0.5Cd0.5S composite materials, which exhibited good hydrogen production performance. This provides a new perspective for the construction of high-performance photocatalytic materials.
CHINESE JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Applied
Linhe Zhang, Fudong Zhang, Huaqing Xue, Jianfeng Gao, Yong Peng, Weiyu Song, Lei Ge
Summary: Different components of PtPd bimetallic cocatalysts modified Zn0.5Cd0.5S nanorods were designed and prepared in this study. The hybrid photocatalysts showed excellent hydrogen production rate and high AQY efficiency under visible light illumination, and thermodynamic and kinetic investigations indicated the benefits of PtPd bimetallic alloy for H-2 production. Overall, this work provides a new perspective for preparing high efficiency hybrid photocatalysts.
CHINESE JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Physical
Yidong Sun, Xingpu Wang, Qiang Fu, Chunxu Pan
Summary: A novel hollow flower-like 0D/3D Zn0.5Cd0.5S/NiCoZn-LDH photocatalyst with an n-n heterojunction was synthesized using precipitation and cation-exchange methods. The composite photocatalyst exhibited enhanced response to visible light and significantly improved hydrogen production rate compared to pure Zn0.5Cd0.5S, showing great potential for large-scale production and applications.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Multidisciplinary
Yang Wang, Jiawen Yang, Xiru Qin, Jiayi Zhuang, Wujie Yin, Tingting Chen, Yong Yao
Summary: Simultaneous synthesis of aldehydes and production of H-2 using photogenerated electrons and holes has been achieved using an efficient and noble-metal free dual-photocatalyst Ni/Zn3In2S6. This photocatalyst enables the spatial separation and efficient transfer of photogenerated electrons and holes, allowing for selective oxidation of alcohols into aldehydes or carbonyl compounds by the holes, and rapid reduction of protons into H-2 by the electrons. The Ni/Zn3In2S6 catalyst exhibits high H-2 evolution and stability, making it a promising candidate for green synthesis and clean energy production.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Chemistry, Physical
Suman Dhingra, Manisha Sharma, Venkata Krishnan, C. M. Nagaraja
Summary: The study presents the rational construction of CoTiO3/xZn0.5Cd0.5S heterostructures with a Z-scheme design for efficient photocatalytic proton reduction and selective oxidation of biomass derivatives, demonstrating enhanced catalytic performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Shuyang Wu, Jinn-Kye Lee, Pei Chong Lim, Rong Xu, Zhengyang Zhang
Summary: The research prepared CdS/g-C3N4 nanocomposites with type II and Z-scheme structures through thermal treatment and self-assembly chemisorption methods, revealing that the type II system exhibited the best charge separation ability and stability, leading to the highest H-2 generation rate.
Article
Chemistry, Physical
Sirinya Ukasi, Paritta Jutapukti, Chiranicha Ninthub, Nattapong Pinpru, Phakkhananan Pakawanit, Wanwilai Vittayakorn, Satana Pongampai, Naratip Vittayakorn, Thitirat Charoonsuk
Summary: This study explores the enhancement of electrical output of flexible hybrid piezoelectric-triboelectric nanogenerators by incorporating gamma-glycine into fully organic composites. The research demonstrates the importance of optimized concentrations of gamma-glycine and chitosan in achieving superior performance. The study identifies the critical content of gamma-glycine that leads to the highest output signal, and provides theoretical explanations for this observation.
Article
Chemistry, Physical
Yoonsang Ra, Yu-seop Kim, Seonmo Yang, Namgyu Kang, Gyuwon Oh, Chungyeon Cho, Sangmin Lee, Dongwhi Choi
Summary: In this study, a portable energy harvester (STEP) was proposed to drive various functional LEDs using biomechanical energy. The roles and functionalities of a triboelectric nanogenerator (TENG) and electromagnetic generator (EMG) in the hybrid energy harvester were experimentally demonstrated, and the necessity of hybridization for LED-involved devices was described. The STEP showed promising potential as an effective energy supply strategy for various functional LEDs in related industries.
Article
Chemistry, Physical
Dae Sol Kong, Kyung Hoon Kim, Ying Chieh Hu, Jong Hun Kim, Inseo Kim, Jeongwan Lee, Joonhyuk Lee, Won Hyuk Shon, Hanjin Yoo, Chul-Un Ro, Seungsu Lee, Hyoungjeen Jeen, Minbaek Lee, Minseok Choi, Jong Hoon Jung
Summary: With the rapid development of the Internet of Things and artificial intelligence, smart home has emerged to fulfill the security, convenience, and energy-saving issues of modern life. A flexoelectric mica crystal is used to augment the finger touch-driven triboelectric output for operating a wireless and multichannel smart home controller. This work provides important ingredients for enhancing triboelectric output and realizing a convenient, multifunctional, cost-effective, and adaptable smart home control system without batteries.
Article
Chemistry, Physical
Yi Han, Fang Wu, Xiaozhen Du, Zihao Li, Haixiang Chen, Dongxing Guo, Junlei Wang, Hong Yu
Summary: This paper presents a novel type of triboelectric nanogenerator that utilizes wind energy, with a Y-type bluff body to enhance vibration and output power. The application of this generator successfully provides power for a wireless temperature and humidity sensor.
Article
Chemistry, Physical
Wen Zhang, Fangyuan Cheng, Miao Chang, Yue Xu, Yuyu Li, Shixiong Sun, Liang Wang, Leimin Xu, Qing Li, Chun Fang, Meng Wang, Yuhao Lu, Jiantao Han, Yunhui Huang
Summary: This study successfully induced the formation of a uniform and robust CEI by constructing ZrO2 nano-rivets on the surface of LCO, stabilizing the surface of high-voltage LCO and facilitating lithium-ion diffusion.
Article
Chemistry, Physical
Karl P. Olson, Laurence D. Marks
Summary: This paper investigates the role of contacting shapes in triboelectricity and provides scaling rules for designing energy harvesting devices.
Article
Chemistry, Physical
Jong-An Choi, Jingu Jeong, Mingyu Kang, Hee-Jin Ko, Taehoon Kim, Keun Park, Jongbaeg Kim, Soonjae Pyo
Summary: Wind-driven triboelectric nanogenerators (WTENGs) are a promising emerging technology for sustainable wind energy harvesting, offering high output performance, lightweight design, and compact dimensions. This study introduces an innovative WTENG design that leverages a rolling-based mechanism to achieve efficient omnidirectional wind energy harvesting.
Article
Chemistry, Physical
Liwei Dong, Qian Tang, Chaoyang Zhao, Guobiao Hu, Shuai Qu, Zicheng Liu, Yaowen Yang
Summary: This paper proposes a novel hybrid scheme for flag-type nanogenerators (FNGs) that enhances their performance and broadens their operational wind speed ranges by harnessing the synergistic potential of two aerodynamic behaviors. The proposed flag-type triboelectric-piezoelectric hybrid nanogenerator (FTPNG) integrates flapping piezoelectric flags (PEFs) and a fluttering triboelectric flag (TEF). The FTPNG achieves significant power generation and a broad wind speed range, surpassing other FNGs, making it suitable for various self-powered systems and Internet of Things applications.
Review
Chemistry, Physical
Yunmeng Li, Xin Liu, Zewei Ren, Jianjun Luo, Chi Zhang, Changyong (Chase) Cao, Hua Yuan, Yaokun Pang
Summary: The demand for green and eco-friendly materials is growing due to increasing environmental concerns related to traditional petroleum-based products. Marine biomaterials have emerged as a promising alternative, thanks to their abundant availability, biocompatibility, biodegradability, and low toxicity. In this review, we discuss the development and applications of triboelectric nanogenerators (TENGs) based on marine biomaterials. The operational modes, foundational principles, intrinsic qualities, and advantages of marine biomaterials commonly used in TENG designs are highlighted. Approaches to enhance the efficacy of TENGs derived from marine biomaterials are also discussed, along with documented applications from existing literature. Furthermore, the existing challenges and future directions in marine biomaterial-inspired TENGs are explored.
Article
Chemistry, Physical
Matthew P. Wells, Adam J. Lovett, Yizhi Zhang, Zhongxia Shang, Kosova Kreka, Babak Bakhit, Haiyan Wang, Albert Tarancon, Judith L. MacManus-Driscoll
Summary: Reversible solid oxide cells (rSOCs) offer a promising solution to efficient energy conversion, but have been limited in portable power and electrolysis applications due to excessive polarisation resistance of the oxygen electrode at low temperatures. This study demonstrates the growth of symmetric and complete rSOC structures with reduced polarisation resistance by tuning oxygen vacancy through annealing, providing a promising route towards high-performance rSOC devices for portable power applications.
Article
Chemistry, Physical
Kangkang Bao, Minghui Wang, Yue Zheng, Panpan Wang, Liwen Yang, Yang Jin, Hui Wu, Bin Sun
Summary: This study utilizes ethanol as an electrolyte additive to modulate the migration of zinc ions and the surface structure of zinc anodes, resulting in improved capacity retention and cycle life of zinc-based aqueous batteries.
Article
Chemistry, Physical
Haichao Yang, Wensi Cai, Ming Wang, Saif M. H. Qaid, Zhiyuan Xu, Huaxin Wang
Summary: The introduction of sodium alginate (SA) into perovskite solar cells improves the carrier dynamics, stability, and performance by inhibiting nonradiative recombination and retarded charge dynamics.
Article
Chemistry, Physical
Cuirong Zhang, Mingyuan Wei, Zihan Chen, Wansheng Lin, Shifan Yu, Yijing Xu, Chao Wei, Jinwei Zhang, Ziquan Guo, Yuanjin Zheng, Qingliang Liao, Xinqin Liao, Zhong Chen
Summary: Artificial Intelligence of Things (AIoT) aims to establish smart and informative interactions between humans and devices. However, common pixelated sensing arrays in AIoT applications present problems such as hard and brittle devices, complex structures, and low precision. This article introduces an innovative solution called the all-in-one intelligent semitransparent interactive nerve patch (AISI nerve patch), which integrates sensing, recognition, and transmission functionalities into a thin and flexible patch. The AISI nerve patch is semitransparent, allowing for accurate identification without affecting aesthetics, and it can be attached to any curved surface for intelligent and interactive applications. With rapid response time and high precision recognition, it enables the integration of artificial intelligence and achieves high recognition accuracy for further development of AIoT.
Article
Chemistry, Physical
Youcun Bai, Heng Zhang, Huijun Song, Chong Zhu, Lijin Yan, Qin Hu, Chang Ming Li
Summary: A novel stainless-steel supported lattice-mismatched V-S-Se layered compound with high selenium vacancy was synthesized by adjusting the molar ratio of sulfur to selenium. The introduction of selenium vacancies created additional redox peaks of sulfur, providing more mass transport channels and active sites for zinc ions. The specific capacity and cycle stability of the electrode were significantly improved, demonstrating great potential for practical applications and providing insights into the effects of defects on battery performance.
Article
Chemistry, Physical
Yao Xiao, Puxian Xiong, Yakun Le, Zhenjie Lun, Kang Chen, Zhiduo Wang, Peishan Shao, Zhicong Chen, Dongdan Chen, Zhongmin Yang
Summary: This study successfully synthesized a material with multi-stimulus-responsive luminescence and confirmed the internal relationship between luminescence and defects by regulating the distribution and depth of defects. The dynamic process of multi-stimulus-responsive luminescence was validated by experimental and calculation results.
