Page 141 - 摩擦学学报2025年第8期

第 8 期 左湘豫, 等: CO 2 对醇胺溶液摩擦学性能的影响与润滑机制研究 1239

2.4 润滑机理 112847. doi: 10.1016/j.jece.2024.112847.
基于以上试验结果，提出的润滑机理如图10所 [ 3 ] Dang Hongtao, Guan Bin, Chen Junyan, et al. Research on carbon
dioxide capture materials used for carbon dioxide capture,
示，CO 与醇胺发生化学反应生成氨基甲酸盐 ，如
[24]
2
utilization, and storage technology: a review[J]. Environmental
[25]
AMP溶液所示，CO 与AMP反应生成氨基甲酸盐 ，
2
Science and Pollution Research, 2024, 31(23): 33259–33302. doi:
+
该氨基甲酸盐由HOCH CH(CH ) NH (阳离子)和 10.1007/s11356-024-33370-2.
3 2
3
2
−
HOCH CH(CH ) NHCOO (阴离子)组成；在磨擦过程
2 3 2 [ 4 ] Fadillah G, Saleh T A. Advances in mesoporous material for
中，摩擦的金属基底携带正电荷，会吸引溶液中带有 adsorption and photoconversion of CO 2 in environmental pollution:
负电荷的羧酸根富集在金属基底表面并形成分子刷 Clean environment and clean energy[J]. Sustainable Chemistry and
结构，而阴离子的另一端羟基则进入水相，在存在外 Pharmacy, 2022, 29(1): 100812. doi: 10.1016/j.scp.2022.100812.
[ 5 ] Rajabi-Firoozabadi S, Khosravi-Nikou M R, Shariati A. Kinetic
界载荷的条件下更易发生剪切而降低摩擦系数. 若醇
study and optimization of hierarchical TiO 2 flower-like/exfoliated g-
胺溶液没有吸收过CO ，则很难在溶液中形成阴离子
2
C 3 N 4 composite for improved carbon dioxide photoconversion to
从而减少在金属基底表面的吸附，进而无法有效降低
methane and methanol under visible light[J]. Journal of Cleaner
摩擦系数. 同时，在摩擦过程中，与基底具有更强吸附 Production, 2024, 451: 142019. doi: 10.1016/j.jclepro.2024.142019.
作用的羧酸根离子更容易发生化学反应形成碳基摩 [ 6 ] Astuti A R A, Saputera W H, Ariono D, et al. Membrane contactor-
[26]
擦膜 . 但是此摩擦膜承载能力差，摩擦过程中易被 photocatalytic hybrid system for carbon dioxide capture and
破坏，摩擦膜被破坏的同时带走了被阴离子较强结合 conversion to formic acid[J]. Results in Engineering, 2024, 22:
102085. doi: 10.1016/j.rineng.2024.102085.
的金属基底从而造成磨损，随着摩擦试验的进行，新
[ 7 ] Wang Jingnan, Zhao Kaiheng, Yi Ding, et al. Role of single-atom
的羧酸根阴离子再次吸附在金属基底上，不断重复上
alloy catalysts in electrochemical conversion of carbon dioxide: a
述过程，导致金属基底磨损增大. theoretical study[J]. Chemical Engineering Science, 2024, 290(4):

119910. doi: 10.1016/j.ces.2024.119910.
3 结论 [ 8 ] Du Jing, Lang Zhongling, Ma Yuanyuan, et al. Polyoxometalate-
目前醇胺溶液吸收CO 已经成为工业常用捕集 based electron transfer modulation for efficient electrocatalytic
2
carbon dioxide reduction[J]. Chemical Science, 2020, 11(11):
CO 的方法，但从醇胺溶液中分离出吸收的CO 对其
2
2
3007–3015. doi: 10.1039/C9SC05392A.
实现高效利用仍是当今研究中的难点之一. 本研究中
[ 9 ] Li Y. Application of carbon dioxide electrocatalytic reduction to
提出1种无需分离CO 便可实现其有效利用的手段. 将 medium carbon nanomaterials[J]. Academic Journal of Materials &
2
吸收CO 的醇胺溶液直接用作水基润滑剂，摩擦学研 Chemistry, 2023, 4(7): 32–37. doi: 10.25236/ajmc.2023.040706.
2
究表明，吸收过CO 的醇胺溶液减摩能力明显提升， [10] Wang Zhitong, Xu Lizhi, Zhou Yansong, et al. Stabilizing the
2
机理研究表明，醇胺吸收CO 后充分反应形成氨基甲 oxidation state of catalysts for effective electrochemical carbon
2
酸盐，氨基甲酸盐中的羧酸根因携带负电荷能够吸附 dioxide conversion[J]. Chemical Society Reviews, 2024, 53(12):
在正电荷的金属表面上，从而形成密集的分子刷结 6295–6321. doi: 10.1039/D3CS00887H.
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构，有效降低金属之间的摩擦. 同时，羧酸根基团与金
catalysts for the oxidative conversion of C1-C4 alkanes with carbon
属基底之间结合更强，使醇胺更易在摩擦条件下发生
dioxide to produce hydrogen/synthesis gas and organic compounds:
化学反应，生成碳基摩擦膜，进一步减少摩擦. 本研究
a review[J]. Theoretical and Experimental Chemistry, 2023, 59(5):
中通过醇胺溶液将CO 转化为羧酸根基团并进一步通 307–323. doi: 10.1007/s11237-024-09790-z.
2
过摩擦化学反应生成碳基摩擦膜，成功实现了对CO 2 [12] Toda Y, Suenaga D, Yamaguchi R, et al. Mechanistic insights
的增值利用，对环境保护和可持续发展有重要意义. into urea-, thiourea-, and isothiourea-based bifunctional tetraarylphos-
phonium salt catalysis for conversion of carbon dioxide to cyclic
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