CHEMICAL ENGINEERING JOURNAL
·
2020
·
IF 10.652
Yanji Zhu,Hongwei Li,Mingliang Zhu,Huaiyuan Wang,Zhenggui Li
Anti-scaling is one key problem in various industrial productions. The coating technology is the most effective protection method for metals and pipelines. As a good scale inhibitor, diethylene triamine penta(methylene phosphonic acid) (DTPMPA) generally takes effect after placement into wastewater and through discharging with water flow. In this study, a novel DTPMPA-modified superhydrophobic anodized aluminium (DSAA) coating was designed, fabricated and utilized for anti-scaling of CaCO 3 deposition. The unique anti-scaling performance on the surface of the DSAA coating originated from the gradual release of DTPMPA at the solution/coating interface, plus the effect of superhydrophobic anti-scaling. During the CaCO 3 deposition, the abundant air layer retained at the surface of the superhydrophobic DSAA coating prevented further deposition of CaCO 3 . In addition, the active DTPMPA gradually and dynamically released from the DSAA coating to the water/coating interface chelated with Ca 2+ and further stopped the possible combination between Ca 2+ and CO 3 2− . This synergistic antiscaling effect of the DSAA coating showed a wide application prospect in effective anti-scaling on various surfaces. This work provides a new way of designing and fabricating dynamic superhydrophobic coatings for anti-scaling.
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2015
·
IF 3.313
Hongfang Du,Shuang Gu,Rongwei Liu,Chang Ming Li
Herein for the first time we report a novel approach to prepare well-controlled iron phosphide nanorods (FeP NRs) via low-temperature phosphidation of Fe salt with a porous anodic aluminum oxide (AAO) template. The as prepared FeP NRs exhibit high catalytic activity toward hydrogen evolution reaction (HER) in acidic solutions, showing an onset potential of ∼45 mV, a Tafel slope of 55 mV/dec and nearly 100% Faradaic yield (FY) with good stability. Additionally, the catalyst can deliver current density of 2 and 10 mA/cm 2 for HER with low overpotentials of 67 and 120 mV, respectively. Up to date the FeP NRs should be the inexpensive electrocatalyst while offering high activity toward HER, thus holding a great promise for practical applications for water electrolysis in large scale production.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Carbon Energy
·
2021
·Vol. 4
·期 2
·155-169
·
IF 0
Junfeng Li,Kwan San Hui,Shunping Ji,Chenyang Zha,Chengzong Yuan,Shuxing Wu,Feng Bin,Xi Fan,Fuming Chen,Zongping Shao,Kwun Nam Hui
Aluminum–metal batteries show great potential as next-generation energy storage due to their abundant resources and intrinsic safety. However, the crucial limitations of metallic Al anodes, such as dendrite and corrosion problems in conventional aluminum–metal batteries, remain challenging and elusive. Here, we report a novel electrodeposition strategy to prepare an optimized 3D Al anode on carbon cloth with an uniform deposition morphology, low local current density, and mitigatory volume change. The symmetrical cells with the 3D Al anode show superior stable cycling (>450 h) and low-voltage hysteresis (~170 mV) at 0.5 mA cm −2 . High reversibility (~99.7%) is achieved for the Al plating/stripping. The graphite | | Al-4/CC full batteries show a long lifespan of 800 cycles with 54 mAh g −1 capacity at a high current density of 1000 mA g −1 , benefiting from the high capacitive-controlled distribution. This study proposes a novel strategy to design 3D Al anodes for metallic-Al-based batteries by eliminating the problems of planar Al anodes and realizing the potential applications of aluminum–graphite batteries.
研究领域:
材料科学
·
能源存储技术
✓ 已验证
产品关联
DOI
Advanced Science
·
2024
·Vol. 11
·期 48
·2409838
·
IF 14.3
Abdur Rahim,Liqi Ma,Muhammad Saleem,Baiju Lyu,Muhammad Shafi,Yuxin You,Mingyue Li,Xiaoyu Zhang,Mei Liu
The field of semiconductor surface-enhanced Raman scattering (SERS) substrates has experienced significant advancements, leading to a wide range of applications in several fields. However, the quest for new ultra-sensitive semiconductor SERS materials is still of utmost importance. In this regard, an efficient and novel substrate, F 4 TCNQ/MoS 2 heterostructure is introduced, assisted by V-shaped aluminum anodic oxide (AAO) nanocavities with different depths. Utilizing the efficient charge transfer of organic/inorganic semiconducting heterostructure and the photoconfinement capability of the nanocavity structure of the AAO nanotemplate, excellent stability, fast sensing, enhanced Raman, and photodegradation activities are achieved. Due to its unique 3D structure, the optimized F 4 TCNQ/MoS 2 /AAO with 1500 nm depth achieves ultra-high sensitivity detection of 9.0×10 −16 M for conventional probe molecules. Furthermore, precise detection of water contaminants is observed for the first time with a V-shaped heterostructure due to combined organic/inorganic features that differ significantly from conventional MoS 2 structures or other metal/inorganic or inorganic/inorganic semiconductors. This research presents a novel and versatile strategy for SERS and demonstrates its diverse potential performance in practical applications.
研究领域:
材料科学
·
光谱学
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2023
·Vol. 58
·期 30
·12433-12449
·
IF 4.5
Wei Sikang,Han Zhaohui,Xu Yang,Xu Lei
Aluminum anodes with fine grain have stronger electrochemical activity and higher corrosion resistance, but the microwave-smelted aluminum alloy anode can be prepared with fine grain. In this work, microwave smelting has been used to refine grain size and optimize the precipitated phase in an aluminum alloy anode. The results show that microwave can not only refine the grain and improve the corrosion resistance of aluminum anode, but also the distribution of precipitated phase is more uniform. The fine grain reduces the potential difference inside the aluminum anode, thus activating the electrochemical activity of the anode and improving the corrosion resistance. The corrosion form is also changed from the conventional pit corrosion to uniform corrosion, so as to improve the utilization rate of anode. The capacity density and energy density of 1000 W microwave-smelted aluminum anode were 1554.404 mAh/g and 1955.181 Wh/kg, respectively. Compared with conventional aluminum anode, the energy density and capacity density increased by 92.7% and 64.5%, respectively. Therefore, microwave technology can improve electrochemical performance and battery performance by optimizing microstructure uniformity and refining grain size.
研究领域:
材料科学
·
电化学
·
能源材料
·
金属腐蚀与防护
·
冶金工程
✓ 已验证
DOI
高影响因子
Advanced Sustainable Systems
·
2021
·Vol. 6
·期 3
·2100420
·
IF 6.271
Yuanlin Huang,Lei Fang,Yu Gu,Pingshi Wang,Hao Yan,Yanjie Wang,Zexing Cao,Zhaowu Tian,Bingwei Mao,Li Zhang
Aluminum metal has been regarded as a promising anode material for aqueous metal-air batteries. However, the stable cycling of Al anodes is challenging due to the severe parasitic corrosion of Al metal in alkaline electrolytes. Here, a novel additive, n -octylphosphonic acid (OPA), is introduced into the typical NaOH electrolyte system to improve the interfacial stability of Al anodes and thus promote high-performance Al-air batteries (AABs). Combining several experimental characterizations and theoretical calculation, it is proved that OPA molecules in an NaOH aqueous environment can modify the Al anode/electrolyte interface and alter the stacking of the discharge product. The electrolyte engineering is capable of anchoring dynamically to restrain side reactions through hydrogen bonds (H···O), homogenizing the dissolution of Al metal and avoiding precipitation agglomeration. As a proof of concept, AABs full cells with an electrolyte containing OPA achieve higher potential plateau and discharge capacity than those with a pure NaOH electrolyte. It paves a way to develop highly-efficient and eco-friendly electrolyte additive strategies for high-performance AABs devices and advance the current understanding of organic additive mechanisms in AABs.
研究领域:
材料科学
·
电化学
·
电池技术
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）