CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Beikai Zhang,Lanbin Wang,Chaocheng Zeng,Duanmei Song,Jiadong Yu,Jinhui Li
Harvesting functional materials from spent lithium-ion batteries (LIBs) presents an opportunity to enhance the economic value of products derived via recycling while mitigating the environmental footprint associated with battery waste management. This study reports an innovative high-temperature shock (HTS)-driven gas–solid (G–S) synthesis strategy that leverages the lithium (Li) from waste LiCoO 2 (LCO) powder to efficiently prepare Li 4 SiO 4 sorbent. An initial HTS step at approximately 1000 °C induces rapid, in situ vaporization of Li 2 O from the LCO matrix, which subsequently reacts with SiO 2 powder, forming a precursor material while simultaneously reducing the LCO residue to metallic cobalt (purity >96 %). The Li 4 SiO 4 sorbent was successfully synthesized following a transient thermal lithiation treatment at 1200 °C for 20 s. The HTS-induced Li volatilization and G–S synthesis mechanisms were elucidated via advanced characterization and theoretical calculations. The resultant Li 4 SiO 4 sorbent demonstrated commendable CO 2 adsorption performance, maintaining a stable adsorption capacity of 0.193 g/g after undergoing 20 consecutive adsorption–desorption cycles under a 15 vol% CO 2 atmosphere. This study introduces a novel short-process, highly efficient, and sustainable strategy for the upcycling of spent LIBs and illuminates new pathways for the rapid synthesis of functional materials.
研究领域:
材料科学
·
环境工程
·
能源技术
·
化学合成
·
废弃物回收
·
吸附技术
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Liang Cai,Guangfan Tan,Xiuhong Yang,Haifeng Xue,Yitong Lin,Xin Hu,Zhuoyuan Song,Yingchun Zhang
Li 4 SiO 4 is considered as one of the most promising materials for post-combustion CO 2 capture at high temperature due to its inherent merits. To avoid elutriation in practical application, granulating and shaping of Li 4 SiO 4 sorbents are getting extensive attention. However, the cylindrical or spherical pellets prepared by traditional methods are prone to result in severe damping of CO 2 capture performance. In this work, the cellular structure Li 4 SiO 4 sorbent was firstly yielded by additive manufacturing based on polymer-derived ceramics strategy. The phase evolution and calcination process were investigated to optimize the microstructure of that sorbents. In addition, three sodium halides were severally doping in Li 4 SiO 4 sorbents to further improve the CO 2 uptake, and the enhancement mechanism was studied. Results show that abundant gas channels around the Li 4 SiO 4 grain can be generated by a novel residual carbon controlling calcination. Additionally, the 6 mol% NaF doped cellular structure Li 4 SiO 4 sorbents possessed superior CO 2 adsorption capacity: 0.329 g CO2 /g sorbent in 70 vol% CO 2 and 0.286 g CO2 /g sorbent in 15 vol% CO 2 , as well as ultrafast adsorption rate. Especially, the sorbents still kept a high adsorption capacity of 0.274 g CO2 /g sorbent and obtained a more efficient regeneration process after undergoing 15 cycles of adsorption–desorption in a low CO 2 concentration flue gas. Hence, the introduction of additive manufacturing and polymer-derived ceramics strategy in fabrication of Li 4 SiO 4 sorbents provides a new approach and promising prospects for the high-temperature CO 2 capture.
研究领域:
材料科学
·
环境工程
·
化学工程
✓ 已验证
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2022
·
IF 7.336
Shao-Lun Cui,Dan Feng,Zhen-Xue Xiao,Sheng Liu,Xue-Ping Gao,Guo-Ran Li
Ni-rich layered cathode materials are being paid much attention to because their high capacity can handily improve energy density of lithium-ion batteries. However, Ni-rich cathode materials still suffer from the deficiencies such as poor cycle stability, weak structural and thermal stability. In this work, Eu 2 O 3 -doped Li 4 SiO 4 with an enhanced ionic conductivity is proposed as surface coating layer for LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM) cathode material to improve the capacity retention and structural stability during cycling. The doping of Eu 2 O 3 in Li 4 SiO 4 makes the coating layer have higher ion conductivity and better stability than pure Li 4 SiO 4 layer. When the doping amount is 10 mol% of Li 4 SiO 4 , the corresponding cathode material NCM-LS3-0.10Eu 2 O 3 exhibits the optimal cycle and rate performance. The discharge specific capacity and capacity retention after 400 cycles at 1 C rate are 150.1 mAh g −1 and 80.48%, respectively. In particular, the NCM-LS3-0.10Eu 2 O 3 secondary particles avoid the appearance of serious cracks and maintain excellent structural stability even after long cycling. It is proved finally that the Eu 2 O 3 -doped Li 4 SiO 4 coating layer can not only inhibit the side reactions caused by the contact between electrode surface and electrolyte, but also reduce the resistance of lithium ion migration and suppress the microstructure changes caused by local stress.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
Nuclear Engineering and Technology
·
2023
·
IF 2.7
Linjie Zhao,Mao Yang,Chengjian Xiao,Yu Gong,Guangming Ran,Xiaojun Chen,Jiamao Li,Lei Yue,Chao Chen,Jingwei Hou,Heyi Wang,Xinggui Long,Shuming Peng
Understanding the tritium release and retention behavior of candidate tritium breeder materials is crucial for breeder blanket design. Recently, a melt spraying process was developed to prepare Li 4 SiO 4 pebbles, which were subsequently subjected to the in-pile tritium production and extraction platform in China Mianyang Research Reactor (CMRR) to investigate their in-situ tritium release behavior and irradiation performance. The results demonstrate that HT is the main tritium release form, and adding hydrogen to the purge gas reduces tritium retention while increasing the HT percent in the purge gas. Post-irradiation experiments reveal that the irradiated pebbles darken in color and their grains swell, but the mechanical properties remain largely unchanged. It is concluded that the tritium residence time of Li 4 SiO 4 made by melt spraying method at 467 °C is approximately 23.34 h. High-density Li 4 SiO 4 pebbles exhibit tritium release at relatively low temperatures (＜600 °C) that is mainly controlled by bulk diffusion. The diffusion coefficient at 525 °C and 550 °C is 1.19 × 10 −11 cm 2 /s and 5.34 × 10 −11 cm 2 /s, respectively, with corresponding tritium residence times of 21.3 hours and 4.7 hours.
研究领域:
核工程
·
材料科学
·
辐射物理
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF NUCLEAR MATERIALS
·
2025
·
IF 3.2
Liang Cai,Shurui Shang,Haifeng Xue,Xin Hu,Qiang Qi,Guangna Luo,Yingchun Zhang
Li 2 TiO 3 -Li 4 SiO 4 biphasic ceramic has attracted increasing attention because of its unique advantages for tritium breeding in fusion reaction. To overcome the critical limitations of conventional Li 2 TiO 3 -Li 4 SiO 4 pebbles, particularly their inadequate mechanical strength and low packing density, this work developed high-performance Li 2 TiO 3 -Li 4 SiO 4 cubic units via digital light processing (DLP). The purge gas flow behavior in stacked cubic unit structure was studied by Computational Fluid Dynamics (CFD) method to evaluate its structural characteristics. The photosensitivity and rheological properties of precursor suspension were studied to verify the printing feasibility. Solid loading and sintering process were optimized to yield the defect-free Li 2 TiO 3 -Li 4 SiO 4 cubic unit. The results show that the purge gas had periodic velocity distribution and extremely low pressure drop in the stacked cubic unit structure. Li 2 TiO 3 -Li 2 SiO 3 -Li 2 CO 3 ceramic suspension possessed suitable photosensitivity and thixotropy, and its optimal solid loading was 40 vol%. After sintering at 1100 °C, the Li 2 TiO 3 -Li 4 SiO 4 cubic unit with high relative density (92.8 %TD), high crush load (2000.3 N) and favorable open-pore structure can be prepared. Comparative analyses of Li-based cubic units indicate that the Li 2 TiO 3 -Li 4 SiO 4 cubic unit not only addresses the limitations of single-phase variants but also demonstrates superior intrinsic characteristics, including excellent mechanical& thermomechanical properties and distinct hydrogen isotope release behavior. This work proves the feasibility of Li 2 TiO 3 -Li 4 SiO 4 biphasic strategy and potential of Li 2 TiO 3 -Li 4 SiO 4 cubic units for the future tritium breeding design.
研究领域:
材料科学
·
核工程
·
增材制造
·
陶瓷材料
·
聚变能源
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF NUCLEAR MATERIALS
·
2016
·
IF 2.199
Linjie Zhao,Xinggui Long,Shuming Peng,Xiaojun Chen,Chengjian Xiao,Guangming Ran,Jiamao Li
Li 4+x Si 1−x Al x O 4 solid solution materials, which were designed as the advanced tritium breeders, were obtained by indirect solid state reactions. The behaviors of tritium release from Li 4 SiO 4 and Li 4.2 Si 0.8 Al 0.2 O 4 powders were investigated by temperature programmed desorption . The tritium release curves show different characteristics for the Li 4 SiO 4 and Li 4.2 Si 0.8 Al 0.2 O 4 ceramics. The main tritium release peak in the Li 4 SiO 4 and Li 4.2 Si 0.8 Al 0.2 O 4 powders is at approximately 600 °C after a high dose irradiation. Moreover, the temperature of the tritium release from Li 4.2 Si 0.8 Al 0.2 O 4 was lower than that of the release from Li 4 SiO 4 . This suggests a possible advantage to using the solid solutions as the advanced tritium breeding materials.
研究领域:
核材料
·
聚变反应堆技术
·
陶瓷材料科学
✓ 已验证
DOI
高影响因子
Materials Chemistry Frontiers
·
2021
·Vol. 5
·期 16
·6171-6181
·
IF 6.482
Liewu Li,Qi Yuan,Shenghua Ye,Yonghuan Fu,Xiangzhong Ren,Qianling Zhang,Jianhong Liu
The layered LiCoO2 cathode plays a key role in high-energy-density lithium-ion batteries (LIBs), delivering a capacity of ∼185 mA h g−1 at a high cut-off voltage of 4.5 V (vs. Li/Li+). However, its practical applications in high-voltage LIBs are limited by a severe side reaction and an irreversible structure transition during cycling. Herein, we report a facile surface coating technique to prepare the Li4SiO4-coated LiCoO2 composite (LiCoO2@Li4SiO4) to confront the issue of instability and increase the capacity of the LiCoO2 cathode at 4.5 V. Notably, the LiCoO2@Li4SiO4 electrode exhibits an exceptionally high initial discharge capacity (180.7 mA h g−1 at 0.1 C), a significantly enhanced rate capability (147.2 mA h g−1 at 5 C), and long-term cycling stability (capacity retention of 82.2% after 500 cycles at 2 C). The experimental results demonstrate that the Li4SiO4 coating could effectively reinforce the structural stability of the LiCoO2@Li4SiO4 electrode during cycling. Furthermore, the density functional theory calculation results further confirm that the Li4SiO4 coating facilitates the rapid Li+ diffusion at the LiCoO2@Li4SiO4 electrode. This work provides a potential strategy for interface engineering of the 4.5 V LiCoO2 cathode for high-energy-density LIBs.
研究领域:
材料科学
·
电化学
·
能源存储技术
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2024
·
IF 8.1
Zongze Lv,Junqiang Han,Tao Deng,Chang Gao,Jianan Li,Changlei Qin
Integrated CO 2 capture and utilization (ICCU) is an emerging technology to reduce CO 2 emissions by greatly simplifying the processes of conventional CO 2 capture and utilization. In particular, ICCU-methanation could directly convert the low-concentration CO 2 into CH 4 using hydrogen from new energy electricity, representing an efficient Power-to-Gas route. CO 2 adsorption/catalytic materials play a crucial role for the operation of ICCU-methanation, and it is more feasible to scale up material production and avoid components interference by directly combining the sorbent and catalyst. However, it is necessary to reveal the effect of different arrangements of sorbent and catalyst on reaction characteristics of ICCU-methanation. In the work, the matching of K 2 CO 3 -doped Li 4 SiO 4 sorbent with various supported Ni-based catalyst was tested and four arrangements of sorbent and catalyst particles in a fixed-bed were investigated to understand the influences on ICCU-methanation. Results show that the presence of catalyst accelerates CO 2 supply by sorbent and achieves quicker methanation, and the promotion effect becomes more obvious with a closer contact between the sorbent and catalyst. Under optimized conditions, ICCU-methanation of uniformly mixed K-Li 4 SiO 4 and Ni/Al 2 O 3 shows an excellent performance with very stable CO 2 conversion of 95.58% and CH 4 selectivity of 93.29% during cyclic reactions.
研究领域:
化学工程
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2024
·Vol. 31
·期 14
·21267-21278
·
IF 0
Zhao Dongling,Geng Linlin,Jia Yanfei,Wei Jianwen,Zhou Xiaobin,Liao Lei
High-temperature solid adsorbent Li 4 SiO 4 has received broad attention due to its high theoretical adsorption capacity, high regeneration capacity, and wide range of raw materials for preparation. In this paper, a Li 4 SiO 4 adsorbent was prepared by MCM-48 as the silica precursor and modified by doping with metal ions (Ca 2+ and Na + ) for high-temperature capture of low-concentration CO 2 . The results showed that the surface of the Ca-doped (or Na-doped) Li 4 SiO 4 adsorbent developed some particles that are primarily composed by Li 2 CaSiO 4 (or Li 3 NaSiO 4 ). Furthermore, the grains of the adsorbents became finer, effectively increasing the specific surface area and enhancing adsorption performance. Under 15 vol% CO 2 , the maximum CO 2 adsorption was 25.63 wt% and 32.86 wt% when the Ca 2+ doping amount was 0.06 and the Na + doping amount was 0.12, respectively. These values were both higher than the adsorption capacity before the metal ion doping. After 10 adsorption/desorption cycles, the adsorption capacity of Na-doped Li 4 SiO 4 increased by 9.68 wt%, while that of Ca-doped Li 4 SiO 4 decreased by 7.98 wt%. This difference could be attributed to the easy sintering of the Ca-containing adsorbent. Furthermore, a biexponential model was used to fit the CO 2 adsorption curve of the adsorbent in order to study the adsorption kinetics. Compared to the conventional Li 4 SiO 4 , the Ca/Na-doped adsorbent offers several advantages, such as a high CO 2 adsorption capacity and stable cycling ability.
研究领域:
材料科学
·
环境工程
·
化学工程
·
吸附技术
✓ 已验证
DOI
THERMOCHIMICA ACTA
·
2017
·
IF 2.236
Zhongyun Zhou,Ke Wang,Zeguang Yin,Pengfei Zhao,Zhen Su,Ji Sun
Highly efficient K 2 CO 3 -doped lithium orthosilicate (Li 4 SiO 4 ) sorbents were synthesized using acid treatment to overcome the typical kinetic limitations of sorbents at low CO 2 concentrations. The effects of K 2 CO 3 on the structure and absorption properties were characterized using various morphological characterization techniques, differential scanning calorimetry (DSC) and thermogravimetric analysis (dynamic and isothermal). The results showed that different amounts of K 2 CO 3 greatly affected the physical-chemical properties and absorption kinetics of the sorbents. On one hand, K 2 CO 3 formed a solid solution with Li 4 SiO 4 and generated favorable characteristics (a smaller crystal size, corrugated morphology, larger surface area and higher surface concentration of Li 2 O), significantly facilitating the chemisorption processes. On the other hand, a higher amount of doped K 2 CO 3 was located on the surface, which induced molten phases during CO 2 absorption, remarkably decreasing the diffusion processes. Therefore, 0.1 M K 2 CO 3 doped sorbent obtained noticeable absorption capacity and good regenerability in 15 vol.% CO 2 .
研究领域:
材料科学
·
环境化学
·
能源工程
·
无机化学
·
化学工程
✓ 已验证
DOI
高影响因子
Energy Technology
·
2018
·Vol. 7
·期 2
·325-332
·
IF 3.175
Ke Wang,Jie Hong,Zhongyun Zhou,Zhiwei Lin,Pengfei Zhao
High efficiency alkali nitrate-containing Li 4 SiO 4 sorbents were synthesized by a hydration technique to improve their sorption performances at low CO 2 concentrations. X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), differential scanning calorimetry (DSC), and thermogravimetric analyses were used to detect the characteristics of the samples. The results showed that the presence of KNO 3 and NaNO 3 induced small crystallite size, corrugated morphologies and the formation of eutectic phases, noticeably facilitating sorption processes. At the optimized additive amount of 0.035 mol %, NaNO 3 -containing Li 4 SiO 4 reached a maximum absorption capacity (≈34.6 wt %). Moreover, both alkali nitrate-containing Li 4 SiO 4 sorbents showed good cyclic properties, demonstrating their great potential for high-temperature CO 2 capture.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Nuclear Materials and Energy
·
2023
·
IF 2.6
Xin Chen,Yichao Gong,Kun Kang,Yuefei Wang,Jiarui Li,Zhaokun Li,Tao Wu,Guojun Zhang
Li 2 TiO 3 /Li 4 SiO 4 ceramics have been regarded as promising tritium breeders due to their numerous merits. In this work, chitosan was employed as an effective binder to provide adhesion of Li 2 TiO 3 particles to Li 4 SiO 4 particles, resulting in Li 2 TiO 3 /Li 4 SiO 4 ceramics with improved performance. Chitosan could be removed during the sintering process and had little influence on the phase composition. The resulting Li 2 TiO 3 /Li 4 SiO 4 ceramics had higher density (92.5%T.D.), greater crushing loads (115.2 ± 20.8 N) and superior thermal properties (3.61 W/m∙K) when compared to the samples prepared without chitosan. SEM analyses displayed a dual-scale structure and the inter- and trans -granular fracture mode. Thermal cycling tests revealed that the phase composition was stable but the crushing load fell slightly. The crushing load remained at 92.4 ± 17.1 N after 12 cycles. Overall, chitosan plays an important role in the amelioration of interface combination between Li 4 SiO 4 and Li 2 TiO 3 , and thus significantly improve density, crushing load and thermal conductivity of Li 2 TiO 3 /Li 4 SiO 4 .
研究领域:
材料科学
·
核能工程
✓ 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）